HARSHIKA BISHT LinkedIn | Email: harshikabisht@gsd.harvard.edu | 857 928 9349 Strategy fabric screen The se cut do levels There Work Sample
I am a building sustainability specialist who reduces the impacts of buildings and cities on the environment and ecology by quantitatively measuring and improving performance factors such as thermal, lighting, air, and carbon metrics using digital tools and technologies. I also conduct data research to bridge existing knowledge gaps in our field, helping build better tools, processes, policies, and other interventions. I am an aspiring changemaker in this space who worked as an architect for four years and will soon graduate with an MDes Ecologies, Energy and sustainability track at Harvard GSD.
Design and Sustainability
Computational Design and Coding
Environmental Policy and Codes
“ “
Content Professional 01 DeCarbon 02 Sustainability fellowship at Handel Architects 03 Project Lead for Raj Bhavan, ANL Associates Academic Material-scale 04 LCA of concrete stool 05 Predicting embodied carbon from facade images using machine learning models Building-scale 06 Exploring natural ventilation potential of a high rise using CFD analysis 07 Optimizing tensile facade design for a convention center using daylight simulations 08 Reducing EUI using (passive) strategies for a residence in Arizona 09 Bioclimatic high rise in Delhi City-scale 10 Solar Chimney effectiveness in dry climate 11 MassES Retrofit tool for Massachusetts: MIT Energy Hackathon 2023 2019-21 2017-23 Team of 4 Team of 3 Team of 5 Individual Team of
Individual Team of
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Professional work Jump to contents
Link
Type :
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Tools : Recognition :
Can we predict optimized carbon and R-values for green buildings in different climate regions?
Venture Startup Kritika, Harshika, Shubha, Jocelyn, Karina Sustainability Specialist + Presentation pitch Research, as-built, green envelopes, building assembly details, database, Machine Learning, sustainable workflows
Excel, Python
Spark Grant; Harvard Innovation Lab
For architects, builders, and developers who want to comply with the netzero city goals and laws, we at DeCarbon provide a digital knowledgesharing platform for green building assembly datasets with support of our industry partners that help bring sustainability to the core of each building project.
These collected dataset of details were furthur analysed to predict construction assembly performance in terms of operational and embodied carbon and cost.
This project was developed as a semester project by Kritika Kharbanda and the team expanded after DeCarbon’s selection into Harvard Innovation Lab. As the sustainability specialist, I am working on database development and second stage performance analysis
Step
Step
Method of analysis
Results
DeCarbon 01
Step 1: Database Development
3: Selection and Prediction
> > >
Industry partners
Metrics LCA data, cost, R-value,
2: Analysis
Climate
panel predicting carbon footprint of assembly
Handel Architects
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How can we create educational resources for the firm from our existing projects ?
Graduate internship
Louis K., Harshika, SWA Associates
Research Fellow + Intern
thermal analysis, passive house, Therm, sustainable workflows, building assembly details
Therm, Rhino, Grasshopper, Ladybug, Cove.Tool, Climate Studio, InDesign, Revit, Airtable, Bluebeam
HA Sustainability Fellowship Award 2022
The objective of the summer internship was to furthur the integration of sustainable design standards into Handel Architects’ practice. It included working with their internal sustainability group, conducting research and developing or testing tools to facilitate sustainable design within the office.
The work was developed into educational and marketing resource for Handel Architects and as the fellow I was also responsible for presenting research to fellow architects, partners, project teams across multiple office locations and conduct informational sessions for related topics. The 4 key projects I contributed on are:
Cove tool usability
break(down) report Sustainable Specifications Database
Miami Dade radiation study
Thermal
02
Thermal Break(down) Report
The building envelope is the most critical component to a building’s energy use and can be optimized with continuous insulation and high-performance glazing and the details at transtions and penetrations in the thermal envelope.
The Thermal break(down) report is an internal learning tool developed to compare and understand the concept of thermal bridging and how to eliminate envelope losses through different thermal break materials. I studied construction assemblies from Handel Architect’s high-performing passive house certified projects such as Sendero Verde, Winthrop Center, Cornell
• Compared assembly performance between details with and without a thermal break material using Therm.
• Developed a THERM workflow doc and a THERM model library for typical construction details.
The report contains details for 22 assembly details analyzed using Therm and the recommendations and strategies approved by Passive House and by SWA
Envelope details covered in the report
handel architects’ thermal break(down) 01 thermal performance by assembly type 02 rainscreen attachment systems 03 high-performance curtain wall (Winthrop Center Office) 04 high-performance megapanel (The House @ Cornell Tech) 05 shelf angle attachment 06 brick tie & flashing detailing 07 window wall slab edge cover 10 balcony & porch slab thermal breaks 11 steel canopy connections 12 columns and beams that exit building enclosure 20 windows and glazed openings 21 glazing system performance 22 glazing system head/sill detailing 23 glazing system jamb detailing 24 hollow metal door specifcation 30 transition: foundation to stone base 31 door threshold @ grade 40 steel dunnage support 41 equipment curb 42 curb @ duct penetration 43 typical parapet 44 transition: roof-to-rainscreen cladding 45 transition: roof-to-masonry veneer 46 miscellaneous metals attachment 47 door threshold @ roof terrace i insulation types 47 46 44, 45 43 42 41 40 31 30 24 22 20 01 10 11 12 exterior wall structural connections openings details @ grade roof details appendix handel architects’ thermal break(down) 01 thermal performance by assembly type 02 rainscreen attachment systems 03 high-performance curtain wall (Winthrop Center Office) 04 high-performance megapanel (The House @ Cornell Tech) 05 shelf angle attachment 06 brick tie & flashing detailing 07 window wall slab edge cover 10 balcony & porch slab thermal breaks 11 steel canopy connections 12 columns and beams that exit building enclosure 20 windows and glazed openings 21 glazing system performance 22 glazing system head/sill detailing 23 glazing system jamb detailing 24 hollow metal door specifcation 30 transition: foundation to
31 door threshold @ grade 40 steel dunnage support 41 equipment curb 42 curb @ duct penetration 43 typical parapet 44 transition: roof-to-rainscreen cladding 45 transition: roof-to-masonry veneer 46 miscellaneous metals attachment 47 door threshold @ roof terrace i insulation types 47 46 44, 45 43 42 41 40 31 30 24 22 20 01 10 11 12 exterior wall structural connections openings details @ grade roof details appendix
stone base
tech, etc.
consultants
sustainability
Sendero Verde Winthrop Center
Cornell Tech dorms
handel architects’ thermal break(down)
STEEL THERMAL SEPARATION
KEY PLAN
KEY PLAN
TO
9 Insulation placement
Submittal: 051000
Submittal: 051000
Steel Structure
cont. steel support connected to slab
UNMITIGATED THERMAL BRIDGE
UNMITIGATED THERMAL BRIDGE
- Significant point of heat loss
Unmitigated Thermal Bridge
- Significant point of heat loss
- Slab surface is cold at interior surface creating potential for condensation.
- Significant point of heat loss
EXTERIOR EXTERIOR
EXTERIOR EXTERIOR
- Slab surface is cold at interior surface creating potential for condensation.
- Slab surface is cold at interior surface creating potential for condensation.
INTERIOR INTERIOR
Description:
Steel canopy support
Steel Structure
Description:
SWA observed
Steel canopy support
structural thermal 2nd-floor resident canopy and the facility entrance
SWA observed
structural thermal 2nd-floor resident canopy and the facility entrance
This application installing the thermal canopy as indicated and construction
This application installing the thermal canopy as indicated and construc
Required Actions: None at this time.
Required Actions: None at this time.
--
Continous 3” Schock Isokorb Thermal Break
CONT. 3” SCHOCK ISOKORB THERMAL BREAK
CONT. 3” SCHOCK ISOKORB THERMAL BREAK
- Heat loss reduction: 56%
- Heat loss reduction: 56%
Installation @ Sendero Verde
- Condensation risk is eliminated
- Heat loss reduction: 56%
- Condensation risk is eliminated
NEW YORK , NY | WASHINGTON
NEW
YORK NY
TO
STEEL THERMAL SEPARATION
SECTION DETAIL--
WASHINGTON
- Condensation risk is eliminated
|
9 Insulation placement
handel architects’ thermal break(down)
SECTION DETAIL
Installation @ Sendero Verde
Schock Isokorb
Project Lead Architect , ANL Associates
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Recognition : Completed on :
Professional Practise
ANL Associates
Architect, Project Lead
Site sustainability, Green Certification, Architecture, Interiors, acoustic, GRIHA, green certification, heritage, reconstruction
Tender Competition awarded in 2017, GRIHA green rating 3/5
2023
As an architect at ANL Associates I have contributed to 24 projects in my 3 years over there while leading 4 of those. Raj Bhavan ceremonial hall and secretariat office was a project that I had a lot of autonomy over as an architect hence directly worked on sustainability strategies, certifications and coordination.
Context
Raj Bhavan is the official residence of the Governor of Maharashtra. It is located in Mumbai on Malabar Hill, in 50 acres of sylvan surroundings, surrounded on three sides by the sea. The estate has several heritage bungalows, large lawns, and a beach. The original hall in the estate was demolished due to structural safety. The brief included reconstruction of the ceremonial hall and Secretariat office block.
03
Site Location in Mumbai
Green Certification -GRIHA by IGBC
The following key strategies were adopted by the project team to reduce the building impact on the environment:
Architecture & Energy efficiency :
• 96.6% of the total occupational area is day-lit.
• Lighting power density (LPD) of the project is 5.94 W/m2, which is lower than the ECBC specified limit of 10.80 W/m2 for convention buildings.
• All air- conditioners and fans installed in the building are BEE 5-star rated.
• Solar PV system of 5 kWp has been installed.
Water and Waste:
• Reduction of 65.49% from the SVA GRIHA base case has been demonstrated in building water demand by installing low-flow plumbing fixtures.
• Rainwater storage tank of 3.2 kLd capacity has been constructed on site.
Sustainable Building Materials:
• Reduction of 45.87% from the SVA GRIHA base case has been demonstrated in embodied energy by using Reinforced Cement Concrete (RCC) slabs and Autoclaved aerated concrete (AAC) blocks.
• Low VOC and lead-free paints have been used to maintain good indoor air quality.
• Granite and vitrified tiles have been used as flooring material.
Jump to contents
Material scale
How can we reduce embodied carbon through our design processes?
Life Cycle Analysis of concrete stool
Type :
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Skills : Recognition :
SCI 6126 Materials
Johnathan Grinham
Harshika, Finn, Jeanelle, Dylan
Lifecycle Anlaysis, Embodied Carbon, Benchmarking, Cradle to Grave, Product Design, Fabrication
Ansys Granta for LCA, Rhino, CNC cutting
Presented at GSD finals exhibition
The course explores the science of materials, its classification, building methods and other associated challenges such as the energy, health, and societal implications of using any material.
For the future of materials we explore hybrid mixes with concrete. We conducted a study on concrete and foam/Sisal fibers and the nearand long-term environmental and social impact of these materials. We attempted to lower the embodied carbon of our product, leverage this knowledge to reform the stool design. This understanding has direct applications in building design.
3 design alternatives with The lifecycle assessment was a key design driver in our fabrication strategy.
With experimentation between different materials the base, best and worst case scenarios were compared for the material. Within the assumptions, the Life cycle analysis of product showed Sisal fibers as an additive reduced the overall CO2 equivalent emitted. But the end of life recyclability gets tougher in composite materials. Most energy is expended in transporting Sisal which is local to Mexico.
Stool Design fabrication process- Blobby ‘Concrete‘ seat and Gothic legs
Concrete+ Sisal + Mylar
Plywood + adhesive
Final product after fabrication
04
Eco Audit Report
Embodied Carbon Footprint Comparison
Base Case Seat- Concrete + Foam, Legs-Wood Best Case Concrete + Sisal, Wood
Case Concrete, Wood
Eco Audit Report
Life Cycle Assessment
Best Case Scenario- Concrete and Sisal fibers with plywood legs
Detailed breakdown of individual life phases
Total 20.1 kgCo2 equivalent, 210MJ
Material total energy 147 MJ
Manufacture process energy 2.4 MJ
Energy (MJ/year) Equivalent annual environmental burden (averaged over 1 year product life): 210 Summary Energy
Analysis
Material: Component Material Recycled content* (%) Part mass (kg) Qty. Total mass processed** (kg) Energy (MJ) % S eat F ill Sisal fiber Virgin (0%)0.01810.0180.180.1 S eat Cement (rapid hardening Portland) Virgin (0%)26126 7349.5 Mold Medium density fiberboard, parallel to board Virgin (0%)0.8510.85 1610.7 D ow el Beech (fagus grandifolia) (t)Virgin (0%)0.00610.00750.0920.1 B as e Plywood (5 ply, beech), perp. to face layer Virgin (0%)1.112.2 5839.7 Total 5 29 1.5e+02 100
Summary *Typical: Includes 'recycle fraction in current supply' **Where applicable, includes material mass removed by secondary processes Report generated by Granta EduPack 2021 R2 © 2021 ANSYS, Inc. or its affiliated companies. All rights reserved. Saturday, April 23, 2022 Stool_best case.prd Page 2 / 10 Manufacture: Summary Component Process % Removed Amount processed Energy (MJ) % S eat F ill Fabric production - 0.018kg 0.0471.9 S eat F ill Cutting and trimming - 0kg 00.0 Mold Coarse machining - 0kg 00.0 D ow el Coarse machining 20 0.0015kg0.000890.0 B as e Coarse machining 50 1.1kg 0.8836.5 G lue Adhesives, cold curing - 0.15m^21.561.5 Total 2.4 100 Transport: Breakdown by transport stage Stage name Transport type Distance (km) Energy (MJ) % S eat T r ans por t Ocean freight 9.3e+03 47 100.0 Total 9.3e+03 47 100 Summary
Material
Manufacture
Stool_best case 1 Product name Product life (years) Summary:
Worst
Country of use United States United States Country of manufacture Phase Energy (MJ) Energy (%) CO2 footprint (kg) CO2 footprint (%) Cost (USD) Cost (%) Material 147 69.8 15.4 76.5 4.54 43.7 Manufacture 2.41 1.1 0.355 1.8 1.31 12.6 Transport 47 22.4 3.39 16.8 4.36 41.9 Use 0 0.0 0 0.0 0 0 Disposal 14 6.7 0.98 4.9 0.18 1.73 Total (for first life) 210 100 20.1 100 10.4 100 End of life potential -12.8 2.6 Energy details CO2 footprint details Cost details See notes on precision and data sources. NOTE: Differences of less than 20% are not usually significant. Saturday, April 23, 2022 Stool_best case.prd Page 1 / 10
Predicting embodied carbon for facades and retrofits using Machine Learning Models
Type : Instructor :
Team :
Keywords :
Skills : Recognition :
SCI 6485 Introduction to Machine Learning
Sabrina Osmany
Harshika, Kritika, Gabriel
Machine Learning, Generative AI, Computer Vision, Embodied Carbon, GANs, Material Classification, Segmentation, Supervised Learning
ResNet, Pix2Pix, StyleGan, Python, LCA
Selected for GSD Project Archives
The course provided an introduction to the rapidly advancing area of research in unsupervised machine learning with a focus on generative models. Recent advances in GANs have captured the public imagination with radical new possibilities for the design of products, interfaces, graphics, texts, buildings and cities. For designers, the potential of these disruptive new workflows cannot be overstated.
We developed a web application that allows building owners to understand the carbon footprint of their facades. Our main focus region for the proof-of-concept was New England residences. To enable citizens to make retrofitting choices, we have to help them understand the carbon footprint of building materials.
There were 4 key objectives of the web app:
Predicted the embodied carbon of the building facade from an image (exposed surfaces only).
Allowed users to switch materials and inform them of the environmental impacts
Created interactive content through generation of new material textures
Objectives achieved
Allowed users to users to map these generated textures on their buildings
05
Dataset training and validation tests
Contextual images
Contextual images
Results from ResNET 101 classifier for material recognition
application Front end application 01 03 04 02 Back end application New material (procedural texture) generation Image of facade with new material Material Classification and embodied carbon calculation
Workflow of the
Segmentation (Building to components and then to materials)
Challenges
Brick and Stone have similar patterns and texture in images and are difficult to differentiate and identify. The algorithm is also limited to only calculating embodied carbon in facades and cannot speculate the structural embodied carbon due to the nature of input.
New retrofit aesthetics using Pix2pix
Material color legend
Revised dataset based on materials
Pix2Pix image translation results of mapping new materials on the same facade image with high success.
Building scale
Jump to contents
Exploring Natural ventilation potential of a high rise using CFD: Airflow analysis of NYT
Type : Instructor : Team :
Keywords : Skills :
SCI 6125 Simulation
Ali Malkawi
Harshika, Kritika, Fernando, Quoc and Viviana CFD, NYC, high rise, air flow, natural ventilation Flovent, Ladybug, Rhino, Grasshopper
As cities continue to grow and expand, we need to understand - how to design for a dense downtown with the wind micro-climate, which is a characteristic area for most cities. Therefore, our group decided to look at the NYT building located in the dense urban downtown of NYC.
We were interested in understanding how to optimize the placement, size, and shape of building openings, such as windows and vents, to promote natural air flow and reduce the risk of indoor pollutants, such as particulate matter, entering the building.
Can we naturally ventilate a New York high rise? What are the challenges?
The following modeling challenges were observed in CFD simulations:
Heavy urban context model needed to be simplified to a closed box,
Combining interior and urban CFD did not give results, since the grid varied a lot in scale and range.
10th floor with single degree context massing (adjacent blocks only)
Site
06
Height (in mm)
Thermal comfort and natural ventilation potential
Wind direction and speed
Temperatures of 14- 26°C for a period of 4 months, from JunSept
Total comfort hours: 1549 hours of total 8760 hours (17.68%)
Percent of time feeling comfortable = 36.84%
Percentage of Heat Stress = 2.14%
Percentage of Cold Stress = 41.78%
Wind speed
Prominent annual winds from the South, with an average speed of 5.5m/s.
Wind profile
During the summer, warm weather and strong sunshine can lead to high levels of ground-level ozone. This is a component of smog that can trigger coughing and throat irritation and lead to serious respiratory problems.
Problem:
• Uncomfortable wind speed at the east, northeast, and southwest side of the building. Wind speed especially bad at northeast corner, which reach up to 8.6 m/s
• Wind shadow region in the urban plaza towards the East of the tower
The annual average set by the World Health Organization’s guideline is at 10 μg/m3 of PM 2.5. As seen in the image, several locations in Manhattan exceed this limit.
Ozone concentration mapped
PM 2.5 concentration limit
Planar Airflow studies at urban plaza
Vertical Airflow studies around the high rise
Strategies proposed:
By redistributing the windows to improve it for the prevailing wind corridor and by alternating the distribution of elevators, while maintaining the spatial requirements, we could have a significant improvement and resolve the identified issues in the baseline study.
Solution 1: Window redistribution
Solution 2: Alternating the distribution of elevators and 3: at urban level adding foliage and canopy
SITE: Location
Optimizing Tensile facade design for Convention Center using daylighting simulations
Type : Instructor :
Team :
Keywords : Skills :
SCI 6466 Optimizing facade Performance
Andrea Love
Individual
Daylighting, EUI, Tensile, facade, WWR, irradiation
Climate Studio, Climabox, Ladybug, Climate Consultant, Rhino, Grasshopper
Visual appearance
Building envelopes are at the intersection of design, performance, and occupant experience in architectural design. Facades influence many aspects of building performance from energy usage to comfort, daylight, natural ventilation, and connections to the exterior. In this project we balance these competing priorities while trying to realize a design vision for a facade that aims at controlling light inside exhibition space, reducing glare and also simultaneously helps in minimizing the EUI The convention center site is located in Eastern Delhi
SCI
Façade skin
SCI 6466 Optimizing façade performance
Harshika Bisht
Temperate, Dry Winter, Hot Summer
(1)
(Cwa)
Source: Google Earth
Proposed facade visualization
07
Site
Methodology
Methodology
SCI 6466 Optimizing façade
Degree Days
Koeppenclimate Zone: Temperate, Dry Winter, Hot Summer (Cwa)
ASHRAE climate zone: Very hot (1)
Total number of cooling hours: 5688 hours
Cooling and Heating Degree Days
Months
Cooling Design Conditions
Hottest month: June
Hottest week: 6/ 3 - 6/ 9
Source: Climate Consultant SCI
Optimizing façade Harshika Bisht Center: Tensile Façade skin
6466
Harshika Bisht
Climate Analysis Temperature, Wind, Radiation, Degree Days, Psychrometric chart Block design strategies Orientation and massing using radiation Daylight analysis Credits, sDA, ASE, avg lux, glare Shading devices Sun path diagram and shadow mask, Radiation analysis, Wall section –Detailed construction, R value, Thermal comfort Studies+ EUI studies Visual appearance
Tools used: Climate Consultant, Climaplus, Sunpath and shading masks, Hand Calculations, Climate Studio
Shoebox model
Typical summer week: 5/27 6/ 2
Convention Center: Tensile Façade skin
SCI 6466 Optimizing façade
DESIGN : Program
Harshika Bisht
Second life for undergraduate studio concept: Program, Plan and initial facade sketch.
DESIGN : Program
Tensile facade SCI 6466
Orientation and solar gain
SITE: Orientation
Convention Center: Tensile Façade skin
Original orientation
BASE CASE
SITE: Monthly surface
The radiation on surfaces , largely due to no hindrance from blocks The Angles between 45- 235 degrees were not possible due to other a single continuous surface with respect to sun path. The roof is the highest incident radiation on its surface. Individual
Original orientation
Convention Center: Tensile Façade skin
The radiation on surfaces , largely due to no hindrance from blocks 235 degrees were not possible due to other a single continuous surface with respect to sun path. The roof is the highest incident radiation on its surface. Individual
Roof East
SITE:
Sunpath
High altitude angle during summer- proximity to equator
Surface Radiation
Façade radiation – for early massing studies
Individual surface performance
The results can be used to decide whether it is advantageous for a building to be oriented along the West/East axis or not.
West, East and Southern facades require shading devices to
SITE: Orientation
Convention Center: Tensile Façade skin
Average annual temperature: 26 °C Annual total solar radiation: 1,944 kWh/m2
Orthographic sun projection
Wind
Solar Irradiation on facade
Orientation and Surface Radiation
30/45 degree Scenario 1
SCI 6466 Optimizing façade
235 degree Scenario 2
surface Radiation on convention center block
blocks around the site.
30/45 degree
235 degree
other building blocks. Due to circular nature of the building, the facades show variation in radiati
Individual façade performance is covered on the next slide.
blocks around the site. other building blocks. Due to circular nature of the building, the facades show variation in radiati
Individual façade performance is covered on the next slide.
to cut down on the radiation. The roof needs to be also treated as the maximum gain comes from the roof.
Harshika Bisht
Orientation and Surface Radiation
SCI 6466 Optimizing façade
South West
North
Center: Tensile Façade skin
Wall window ratio and it’s effect on illumination
Design Development: Wall to window ratio
Convention Center: Tensile Façade skin
85 % 60%
ratio
Optimizing façade
40%
Illumination Study: Base Case study – WWR 85 %
AIM – exhibition halls require 300- 500 lux levels. Over lit near the curtain wall No Underlit spaces
SCI 6466 Optimizing façade
40%
Convention Center: Tensile Façade skin
Daylight autonomy analysisOperating hours: 8 am-6 pm without DST 300 lux levels were always achieved during the year
Harshika Bisht
ASE shows the over lit spaces. For 250 hours of the year, we have 1000 lux near the external envelope. Since it is greater than 10, hence glare control is required.
Illumination levels on average were 2150 lux levels annually.
Harshika Bisht
Illumination Study: Scenario 1 WWR – 40 %
SCI 6466 Optimizing façade
40 percent wall to window reduces the average lux levels but also reduces the daylight autonomy. Hence the optimum wwr is between 40 and 60.
SCI 6466 Optimizing façade
SCI 6466
Harshika Bisht
Harshika Bisht
Development: Wall to window ratio 60% 40%
Center: Tensile Façade skin
Convention Center: Tensile Façade skin
Illumination Study: Scenario 1 WWR – 60 %
Design Development: Horizontal component
Design Development: Horizontal component
ratio -50% Required depth With light shelf
Required depth With light shelf
Development: Horizontal component
The horizontal component effectively cuts down, the lux levels and still provides high daylight autonomy Additional vertical component required on East and West façade to cut down glare
Development: Horizontal component
Required depth With light shelf
shelf
SCI 6466 Optimizing façade
The horizontal component effectively cuts down, the lux levels and still provides high daylight autonomy Additional vertical component required on East and West façade to cut down glare
The horizontal component effectively cuts down, the lux levels and still provides high daylight autonomy Additional mponent required on East and West façade to cut
Horizontal shading using bris soleil –supports cable net grid for vertical component
Horizontal shading using bris soleil –supports cable net grid for vertical component
Less depth of shade on top More diffused light
Horizontal shading using bris soleil –supports cable net grid for vertical component
The horizontal component effectively cuts down, the lux levels and still provides high daylight autonomy Additional vertical component required on East and West façade to cut down glare
Less depth of shade on top More diffused light
Light shelf to break the glare further down
Less depth of shade on top More diffused light
SCI 6466 Optimizing façade
Harshika Bisht
SCI 6466 Optimizing façade
Harshika Bisht
Harshika Bisht
SCI 6466 Optimizing façade
Harshika Bisht
SCI 6466 Optimizing façade
Harshika Bisht
SCI 6466 Optimizing façade
Harshika Bisht
Convention Center: Tensile Façade skin
Option 1
Shading strategies- Vertical
Strategy 1
SCI 6466 Optimizing façade
The vertical component effectively cuts down glare on both West and East sides after a couple of iterations with different spacing intervals
Harshika Bisht harshikabisht@gsd harvard edu
Systems 2
Harshika Bisht harshikabisht@gsd harvard edu Environmental Systems 2 GSD-SCI-6122
Step 3: Vertical Shading additions + design explorations + Task 2
06/21 at 12 00 noon
at
00
Vertical tensile fins
Vertical Tensile fins
Convention Center: Tensile Façade skin
Convention Center: Tensile Façade skin
Strategy 2
Strategy 2
Translucent
fabric screen
SCI 6466 Optimizing façade
The second translucent skin allows light to pass through at 50% transparency It does not cut down glare as effectively and the middle of the room does not achieve the desired lux levels throughout the year
Translucent fabric screen
Translucent fabric screen
Material
The
Winter solstice 12/21 at 12 00 noon Summer solstice 06/21 at 12 00 noon
The second translucent skin allows light to pass through at 50% transparency It does not cut down glare as effectively and the middle of the room does not achieve the desired lux levels throughout the year Therefore Strategy 1 is selected
2 GSD-SCI-6122
SCI 6466 Optimizing façade Harshika Bisht
Option 2
The vertical component effectively cuts down glare on both West and East sides after a couple of iterations with different spacing intervals
Winter solstice 12/21
12
noon Summer solstice 06/21 at 12 00 noon sht harsh kab sht@gsd harvard edu Systems 2 GSD-SCI-6122
= 0 621
properties ( visible light transmittance for translucent tensile material) T vis
(from market research)
Winter solstice 12/21 at 12 00 noon Summer solstice 06/21 at 12 00 noon
second trans ucent skin allows light to pass through at 50% transparency It does not cut down glare as effectively and the middle of the room does not achieve the desired lux levels throughout the year
Environmenta
GSD-SCI-6122 Step 3:
Therefore Strategy 1 is selected + Task 2
Vertical Shading additions + design explorations
Winter
Summer solstice
The vertical component effectively cuts down glare on both West and East sides after a couple of iterations with different spacing intervals
solstice
12/21 at 12 00 noon
Environmental Systems
Harshika Bisht harsh kab sht@gsd harvard edu
Material properties ( visible light transmittance for translucent tensile material) T vis = 0 621 (from market research)
The second translucent skin allows light to pass through at 50% transparency It does not cut down glare as effectively and the middle of the room does not achieve the desired lux levels throughout the year
The first figure shows the energy use intensity for the given box design for cooling, heating, electric lighting and equipment. The energy use intensity corresponds to the sum of the different energy uses of the building divided by the conditioned floor area. The second figure shows CO2e emissions from gas and electricity and the last figure shows the cost of energy.
Scenario Comparisons Scenario Comparisons EUI calculation (for Output Area is the same as hall Different WWR are run – 85%, 60%, 50%, 40% Since some walls are internal, they are considered adiabatic and the hall has 2 exterior walls Output
EUI study Energy CO2 Cost Input
APPENDIX
Reducing EUI for a single-family residence
SCI 6125: Simulation
Instructor :Holly Samuelson
Team: Harshika, Quoc, Viviana and Kritika
Tags: Thermal zoning, massing, WWR, shading, thermal mass
*All values for site EUI and kgCO2 are considered with floor area = 160kgCO2, as we were making comparative studies for best & worse case
Methodology
Investigations on zones, massing, WWR, shading, thermal mass, and schedules to find the best and worst performing alternatives. We divided the task based on different parameters that impact the EUI and kgCO2 and studied them on the baseline building to find a range between the best and the worst cases.
The climate is Phoenix, Arizona.
08
How to reduce energy use in single family residences through design in arid climates?
Snapshot of the solver setup:
To understand the impact of WWR, we prepared an optimization model in Grasshopper, using the Brute Force algorithm as defined in Colibri1, and used it with Design Explorer2, both developed by Thornton Tomasetti.
Best scenario (window settings only) - Solver:
We found that the WWR is directly related to the site kgCO2. The lower the WWR number, the lower are the emissions. 600 iterations were run, and there is a clear gradient with the WWR and kgCO2. All the results can be viewed at:http://tt-acm.github.io/DesignExplorer/?ID=BL_3IVJUln
Range of kgCO2: 7,040-7,680kgCO2
Best scenario (window settings only) - Solver:
Total CO2: 7,040 kg CO2
Total CO2: 7,040 kg CO2
Bio-climatic high rise in Delhi
Undergraduate thesis, 2017
Guide :Rekha Bhardwaj
Tags: Thermal zoning, massing, WWR, shading, thermal mass, glazing tints
Noida Sec -15 is a growing corporate hub moving away from it’s initial identity of an industrial location, with lower real estate costs than Delhi and proximity to this capital city.
Site is located opposite to a metro station which acts as catalyst in the new urban setting for development; allowing higher built up area as per Transitoriented development policy. The central focus is also shifted to a public mode of transport thereby promoting more sustainable means of commuting. Due to excellent connectivity by road and metro; along with potential development schemes nearby, the site is strategically suited for corporate or co-working office spaces in future.
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Tint on glass to reduce it’s transmittance
South West facade
Shadow matrix
Insolation study
Roof gardens
Summer roof gardens are shaded between 1-3 during periods of uncomfortable hot hours. Winter roof gardens are sunlit between 11 to 3 providing excellent spaces to sit in.
Location of solar panels
Potential locations and their shading hours are identified. From solar irradiation hours these get the most uninterrupted sun throughout the year
Sequestering Carbon by maximizing opportunity for green foliage. Site planning to mitigate Urban Heat Island effect
City scale
Jump to contents
Do different parameters of solar chimney such as opening size and height have an uneven influence on its effectiveness in different climatic condiitons ?
Solar Chimney effectiveness in dry climate
MIT : Space conditioning of low embodied carbon buildings
Instructor : Les Norford Team: Harshika, Nuknik and Quoc Tags: ventilation, solar chimney, dry climate,
Solar chimneys are a cost-effective choice for a cooling and heating system compared to air conditioning or heating units. Hence, we investigate their effectiveness in different parts of the world. We are interested in recognizing the parameters that affect the comfort conditions and whether it varies between each climate classification
Adjusting between chimney opening size % shown to be the least impactful from 10% to 100% parameter for all climate regions. For cities and climate regions with extreme heat temperatures like the tropical climate regions (A) and dry arid desert (BSh, BWh), there is an observed decrease in discomfort hours as chimney height increases.
CITY: THESSALONIKI, GREECE Latitude:40.6401° N Longitude: 22.9444° E Elevation: 0 TO 250 m Natural ventilation potential: 2215 CITY: JAISALMER, INDIA Latitude: 26.9157° N Longitude: 70.9083° E Elevation: 225 m Natural ventilation potential: 2197 CITY: TRIPOLI, LIBYA Latitude: 32.8872° N Longitude: 13.1913° E Elevation: 81 m Natural ventilation potential: 3582 B - DRY CLIMATE LOCATION Chimney Exhaust Chimney Height: Chimney window Chimney window JAISALMER, Discomfort THESSALONIKI, Discomfort TRIPOLI, LIBYA Discomfort Af - TROPICAL RAINFOREST SOLAR CHIMNEY AND CLIMATE REGIONS Af - TROPICAL MONSOON Af - TROPICAL SAVANNAH BWh - Hot Desert BSk - Cold Semi- arid BSh- Hot semi arid Jaisalmer Thessaloniki Tripoli Csa & Csb - DRY SUMMER CLIMATE (MEDITERRANEAN) Cfb Cfc, Cwb, Cwc - OCEANIC CLIMATE Athens Coventry Singapore Mumbai, India Miami, Florida SOLAR CHIMNEY AND CLIMATE REGIONS Af - TROPICAL MONSOON Af - TROPICAL SAVANNAH BSk - Cold Semi- arid BSh- Hot semi arid Thessaloniki Tripoli Csa & Csb - DRY SUMMER CLIMATE (MEDITERRANEAN) Cfb Cfc, Cwb, Cwc - OCEANIC CLIMATE Coventry Mumbai, India Miami, Florida REGIONS Af - TROPICAL SAVANNAH BSh- Hot semi arid Tripoli (MEDITERRANEAN) Cfb Cfc, Cwb, Cwc - OCEANIC CLIMATE Coventry Mumbai, India 10
12m
Window Height: 3.5m
Window Opening: 100%
JAISALMER
Discomfort hours: 5769 h
THESSALONIKI
Discomfort hours: 3718 h
TRIPOLI
Discomfort hours: 3052 h
Chimney Opening: 100%
Chimney Height: 5m
Window Height: 1m
Window Opening: 100%
JAISALMER Discomfort hours: 5613 h
THESSALONIKI Discomfort hours: 3631 h
TRIPOLI
Discomfort hours: 2315 h
Height: 5m
Height: 3.5m
3081
WINDOW HEIGHT
Chimney Opening: 100%
Chimney Height: 5m
Window Height: 5m
Window Opening: 100%
JAISALMER
Discomfort hours: 6436 h
THESSALONIKI Discomfort hours: 2919 h
TRIPOLI
Discomfort hours: 2385 h
Chimney Opening: 100% Chimney Height: 12m Window Height: 8m Window Opening: 100%
JAISALMER Discomfort hours: 6241 h
THESSALONIKI Discomfort hours: 3402 h
TRIPOLI Discomfort hours: 2326 h
Baseline
ITERATIONS CHIMNEY OPENING % CHIMNEY HEIGHT Chimney Opening: 10% Chimney Height: 5m Window Height: 3.5m Window Opening: 100% JAISALMER Discomfort hours: 6198 h THESSALONIKI Discomfort hours: 3068 h TRIPOLI Discomfort hours: 2132 h Chimney Opening: 100% Chimney Height: 8m Window Height: 3.5m Window Opening: 100% JAISALMER Discomfort hours: 5982 h THESSALONIKI Discomfort hours: 3425 h TRIPOLI Discomfort hours: 2807 h Chimney Opening: 100% Chimney Height: 3.5m Height: 3.5m Window Opening: 100% JAISALMER Discomfort hours: 6390 h THESSALONIKI Discomfort hours: 2899 h TRIPOLI Discomfort hours: 2315 h Chimney Opening: 100% Chimney Height: 12m Window Height: 3.5m Window Opening: 100% JAISALMER Discomfort hours: 5769 h THESSALONIKI Discomfort hours: 3718 h TRIPOLI Discomfort hours: 3052 h Chimney Opening: 40% Chimney Height: 5m Window Height: 3.5m Window Opening: 100% JAISALMER Discomfort hours: 6211 h THESSALONIKI Discomfort hours: 3081 h TRIPOLI Discomfort hours: 2146 h Chimney Opening: 80% Chimney Height: 5m Window Height: 3.5m Window Opening: 100% JAISALMER Discomfort hours: 6230 h THESSALONIKI Discomfort hours: 3114 h TRIPOLI Discomfort hours: 2184 h Baseline Baseline CHIMNEY OPENING % Chimney Opening: 10% Chimney Height: 5m Window Height: 3.5m Window Opening: 100% JAISALMER Discomfort hours: 6198 h THESSALONIKI Discomfort hours: 3068 h TRIPOLI Discomfort hours: 2132 h Chimney Opening: 40% Chimney
Window
Window
Opening: 100% JAISALMER Discomfort hours: 6211 h
Chimney
Window
Window
JAISALMER Discomfort
TRIPOLI Discomfort
Baseline ITERATIONS Chimney Opening: 100% Chimney Height:
THESSALONIKI Discomfort hours:
h TRIPOLI Discomfort hours: 2146 h Chimney Opening: 80%
Height: 5m
Height: 3.5m
Opening: 100%
hours: 6230 h THESSALONIKI Discomfort hours: 3114 h
hours: 2184 h
Height: 3.5m
Window Opening: 100%
JAISALMER
Discomfort hours: 6390 h
THESSALONIKI
Discomfort hours: 2899 h
TRIPOLI
Discomfort hours: 2315 h
WINDOW OPENING %
Chimney Opening: 100%
Chimney Height: 12m
Window Height: 3.5m
Window Opening: 100%
JAISALMER
Discomfort hours: 5769 h
THESSALONIKI Discomfort hours: 3718 h
TRIPOLI
Discomfort hours: 3052 h
ITERATIONS
Chimney Opening: 100%
Chimney Height: 5m
Window Height: 3.5m
Window Opening: 10%
JAISALMER
Discomfort hours: 5368 h
THESSALONIKI
Discomfort hours: 3933 h
TRIPOLI
Discomfort hours: 2420 h
Chimney Opening: 100%
Chimney Opening: 100%
Chimney Opening: 100%
Chimney Height: 5m
Window Height: 1m
Window Opening: 100%
JAISALMER
Discomfort hours: 5613 h
THESSALONIKI Discomfort hours: 3631 h
TRIPOLI Discomfort hours: 2315 h
Baseline
Chimney Height: 5m
Window Height: 3.5m
Window Opening: 40%
JAISALMER
Discomfort hours: 5488 h
THESSALONIKI Discomfort hours: 3746 h
TRIPOLI
Discomfort hours: 2299 h
Chimney Height: 5m
Window Height: 3.5m
Window Opening: 80%
JAISALMER
Discomfort hours: 5933 h
THESSALONIKI
Discomfort hours: 3402 h
TRIPOLI
Discomfort hours: 2165 h
Baseline
ITERATIONS WINDOW OPENING % WINDOW HEIGHT Chimney Opening: 100% Chimney Height: 5m Window Height: 1m Window Opening: 100% JAISALMER Discomfort hours: 5613 h THESSALONIKI Discomfort hours: 3631 h TRIPOLI Discomfort hours: 2315 h Chimney Opening: 100% Chimney Height: 5m Window Height: 3.5m Window Opening: 40% JAISALMER Discomfort hours: 5488 h THESSALONIKI Discomfort hours: 3746 h TRIPOLI Discomfort hours: 2299 h Chimney Opening: 100% Chimney Height: 5m Window Height: 3.5m Window Opening: 10% JAISALMER Discomfort hours: 5368 h THESSALONIKI Discomfort hours: 3933 h TRIPOLI Discomfort hours: 2420 h Chimney Opening: 100% Chimney Height: 5m Window Height: 3.5m Window Opening: 80% JAISALMER Discomfort hours: 5933 h THESSALONIKI Discomfort hours: 3402 h TRIPOLI Discomfort hours: 2165 h Chimney Opening: 100% Chimney Height: 5m Window Height: 5m Window Opening: 100% JAISALMER Discomfort hours: 6436 h THESSALONIKI Discomfort hours: 2919 h TRIPOLI Discomfort hours: 2385 h Chimney Opening: 100% Chimney Height: 12m Window Height: 8m Window Opening: 100% JAISALMER Discomfort hours: 6241 h THESSALONIKI Discomfort hours: 3402 h TRIPOLI Discomfort hours: 2326 h Baseline Baseline
CHIMNEY HEIGHT Chimney Opening: 100% Chimney Height: 8m Window Height: 3.5m Window Opening: 100% JAISALMER Discomfort hours: 5982 h THESSALONIKI Discomfort hours: 3425 h TRIPOLI Discomfort hours: 2807 h Chimney Opening: 100% Chimney Height: 3.5m
https://bit.ly/MassESretrofit
How can we retrofit buildings to be more resilient to extreme weather events?
MassES Retrofit tool for Massachusetts
Type :
Team :
Role :
Keywords :
Tools :
MIT Energy Hackathon, 2022 Harshika, Kritika, Yiwei, Bryce Sustainability Specialist + Presentation pitch retrofit, Massachusetts, planning tool, energy audits, code compliance, climate policy, deep and shallow retrofits wireframe, low fidelity prototype Tableau, Climate Studio, Grasshopper, Figma
Commercial buildings account for a significant portion of energy consumption in Massachusetts, and retrofitting them with energy-efficient technologies can help reduce their carbon footprint while saving building owners and tenants money on energy costs
Massachusetts Clean Energy Center aims to accelerate the growth of the clean energy industry while promoting sustainable development in Massachusetts.
MassCEC is interested in developing a retrofit planning tool for commercial buildings in Massachusetts because it can provide building owners with a cost-effective and efficient way to identify and prioritize retrofit opportunities. The tool can analyze building energy usage and provide recommendations for retrofitting opportunities. This tool was developed as per the brief provided but scales up the scope beyond building owners to energy auditors, govt agencies and architects.
Decision making process
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The tool takes into account critical retrofitting decisions such as building envelope improvements, HVAC upgrades, lighting improvements, and renewable energy installations. The tool also considers the financial feasibility of retrofitting, including the potential return on investment and available financing options. Overall it helps promote energy efficiency in Massachusetts and contribute to the state’s clean energy goals
Results
The tool gave end use consumption, cost and carbon footprint as primary indicators on performance dashboard. For both shallow and deep retrofits, it provided annual charges and payoff period.
Tool Interface
Harshika Bisht LinkedIn | Email: harshikabisht@gsd.harvard.edu | 857 928 9349