PORTFOLIO
WORΚ SAMPLES Dimitrios Sampatakos dsampas@gmail.com tel.: 0049 15733921139
Thesis Project 2010 “Technological museum of Transport at the former Athens Hellenikon Airport�
The subject of the Diploma Project is based on the idea of a new Technology Museum in the area of the former Athens International Airport. The eastern Terminal of the airport is restored and reused as a showroom of cars and motorcycles. This building was created by the American-Finnish architect Eero Saarinen in 1963 and is an important archtectural post war monument of modern Greece. A new, larger volume is created, which will house and expose aircraft in an innovative way using curved surfaces, laying emphasis on the non-statical character of airplanes and helicopters.
The harmonical coexistence of a new large building with the existing architectural monument, the construction of this building in order to house large scale exhibits using a minimum amount of columns and the relation to the metropolitan park proposed by the winning concept of the architectural competition held in 2003 have been the most important challenges, both architectural and structural. The ability to make use of the more stable (throughout the year) ground temperatures and generate Energy through the large roof surface using solar cells are additional climate-related potentials.
Motorbike collection
Car collection
Aircraft
EXISTING TERMINAL
NEW MUSEUM HALL
Former Terminal Elevation/Section The use of the new structure as a neutral background highlighting the value of the existing. Use of the same grid dimensions as the building of Eero Saarinen
Construction of physical models in different scales. NTUA Workshop
Structural design and analysis The challenge of a large column-less exhibition space for Aircraft has been dealt with the development of a cable suspended roof system.
Transverse cable connection
West facade connection
Roof-facade connection
Thesis Project 2014 ““Development of three dimensional Photovoltaic structures as shading devices for a Decentralized Facade Unit of the Future”
Project developed for:
“How should we shape a PV surface three dimensionally to achieve the highest total Energy output for a given facade surface?” “Can a location optimized and adaptable 3d module lead to increased energy output and how can it be constructed?” The first part of the Thesis consists of a research on topics related to Solar Energy, PV technologies and Materials used as part of active solar structures (from the active materials to substrates) as well as their integration in the form of custom shapes. The analysis of these topics reveals the potential of new and emerging PV technologies, which combine very lightweight and flexible characteristics, with a very good performance in partial shading and diffuse light conditions, but most importantly a very high price reduction potential due to specific fabrication methods and materials.
The third phase is a solar analysis of 56 of the three dimensional shapes tested and compared in phase 2. Thereby the real average solar radiation reaching the surface of various prismatic or corrugated 3d patterns is calculated and graphically presented. Incident Solar Energy values and partial shading percentages within every shape clearly illustrate which 3d shapes have the highest potential for making maximum use of solar radiation. The relation between surface area increase through denser folding or curving patterns and total received solar energy constitutes the most important finding of this phase.
In a next step a (four phase) Methodology is developed in order to observe how the process of shaping a three dimensional PV structure in order to increase its surface area per facade space can lead to performance advantages compared to conventional flat and rigid PV structures.
In a fourth phase Laboratory tests are performed at the PV-LAB of the Faculty of Electrical Engineering TUDelft. Different 3d shape versions are tested using flexible Thin Film solar panels. The fact that solar cells performance (output) does not decrease linearly proportional to partial shading and total incident solar energy changes makes real Lab Tests an import- ant verification of the solar analysis results.
This part consists of a first phase, where possible light control/shading systems are compared according to specific requirements related to shading efficiency but more importantly to PV integration potential and PV surface increase potential. The second phase is a shape research in terms of Surface Area Potential and a comparison between 3d shapes using parametric tools. Thereby the ability of different shapes with various patterns to increase their surface for predefined total dimensions is evaluated. The results lead to structures which can provide more active PV area for a given facade area.
Finally the best performing shapes for a given location are used as the basis to create design proposals in the form of a light control/shading device. The PV optimized 3d surface is thereby developed as a facade structure with possible ways of operation and integration into the NEXT FACADE Concept by Alcoa Architectuursystemen. Additionally ways of using the produced energy and creating a complete efficient PV based system are proposed.
Are corrugated three dimensional PV surfaces of a larger area more efficient compared to flat panels? Parametric shape Generation
Which 3d shapes provide more active surface and a better exposure for PV integration?
Different shape patterns are generated using parametric tools. Adding photoactive layers and increasing surface area inspired by natural structures
Photoactive surface texturing microscale
Area
Physical mechanisms and structures constitute the main inspiration. 3d arrangements optimize exposure and rigidity of lightweight surfaces. A large number of shape patterns is generated using parametric tools (Rhino Plugin Grasshopper) and compared in terms of surface area increase for a given facade footprint. The most surface efficient shapes/patterns are collected and used by the developed script to later compare them through a solar analysis. Thereby the potential for PV integration and performance increase is predicted. At the same time experimenting with physical or computer models and different light angles gives insight to the shading patterns created. (important for PV partial shading)
Leaf corrugated strucutre Lightweight, more surface
Multi-layered light absorbing surfaces
Shape Generation. Surface comparison
Model-Prototype construction and testing
What is the real performance of the 3d shapes compared to flat solar panels?
Solar Analysis and PV-LAB testing Best performing shapes in terms of total photoactive surface are compared through solar analysis software and PV-LAB testing.
Analysis
Laboratory testing is performed for a variety of shapes and compared to their flat equivalents under several angles. Denser 3d shapes have shown an increased performance compared to the same solar modules in flat shape (size of footprint). The testing was performed at the TUDelft PV-Laboratory (Department of electrical engineering) unsing flexible thin film PV modules provided by Hyet Solar, the Netherlands.
What is the average solar energy reaching the surface of increased area 3d shapes compared to flat panels? Which shapes perform better in terms of partial shading? The shape patterns with the highest total surface area compared to their flat equivalent are compared through solar analysis software (Autodesk Ecotect). Graphs and colored surface analysis highlight the energy reaching every part of complex 3d panels. Partial shading percentages and shadow shapes extracted from the software give an indication of the shapes with a performance advantage in real conditions. The different performance throughout the day or period of the year between different shapes shows that there is a high optimization potential for different applications. Varying performance of 3d shapes depending on the location and orientation enhances the idea of location optimized PV structures.
Testing
Development of PV shading proposals Based on the results of the previous phases the best performing PV shapes are translated into retractable facade structures.
Detailing and operation analysis of each design
50
How can the optimal 3d shape for a specific location (orientation/climate) in terms of energy gain be constructed efficiently?
850
50
50 43
150
A number of different proposals is developed, taking the most efficient 3d shapes for specific predefined conditions as a basis. The structure should serve as an energy producing light control device and should therefore be adjustable and retractable. The complete system will be part of the “NEXT FACADE concept� facade modules and operate in combination with the climate control devices these decentralized units include.
260
Climate Box devices
300
Lightweight polymer based materials, which will be more and more used as PV substrates due to the very high cost reduction potential (cheap material and fabrication processes), are used in all solutions in order to highlight the new possibilities of the new generation of solar cells. The three categories of designs exhibit different degrees of complexity, price and a different architectural impression. More complex shapes make the idea of 3d shape optimization more evident.
Three main categories of shading proposals (3d renders)
Internal space impression The appearance and atmoshere experienced from the inside space is show through 3d renderings.
Complete 3d Renderings for the inside and outside impression for every single facade proposal were created. Light sensors and central control units will be responsible for finding the perfect balance between optimizing solar energy gain and lowering the demand for artificial light. The ability of the shading system to aquire denser or wider shapes through bending can increase the exposed PV surface even for partly a retracted system. e
TUDelft Project 2013 “Climate Institute Building, the Netherlands� Building design and Engineering Project
The design of Climate Institute building emerged from the idea of letting the basic climatic principles, natural elements and performance aspects shape the final volume of the structure. Starting from a volume that covers the complete plot, mass is carefully substracted in order to fulfil all the main goals of the project through a simple but strong gesture. Ventilation is achieved through the diagonal flow towards the large solar chimney at the corner of the complex. The southern part becomes a large atrium that allows physical light to enter the space and enables natural ventilation (depending on the climate conditions). The final volume that derives from this procedure is covered by an inclined roof structure, which is responsible for the light control and the energy production through photovoltaic panels. The final goal has been to create a sustainable, energy neutral building that highlights and exhibits its purpose and becomes a landmark. e
Cutting through the volume to create atrium, ventilation for solar chimney and physical light
Architectural models used for solar study
-Roofing -22mm multiplex board -Woodskeleton 58x87mm
Aluminium windowframe
20 mm
Construction. Details. Facade
300 mm
Horizontal detail H1 1:5 Finishing
Stuctural analysis. Facade. Details
-Roofing -22mm multiplex board -Woodskeleton 58x87mm
150 mm
inside
40 mm
A
A
Steel angle, serving casement
Fixing for horizontal movement, serving facade substructure
outside -In-situ concrete 300mm -Casement frame, wood 45x125mm -Insulation 150mm -Waterproof layer -Prefab concrete panel 40mm
Facade Substructure, steel profile 21x42mm
Rising in situ, 150mm
Vertical detail V1 1:5 40 mm
150 mm
150 mm
150 mm
Vertical detail V2 1:5 outside
Vertical detail V4 1:5
outside
200 mm
Gutter
-Windowframe -22mm multiplex board -Woodskeleton 58x87mm 50 mm
L+16000mm -Prefab concrete panel 40mm -Facade Substructure, steel profile 21x42mm -Waterproof layer -Insulation 150mm -In-situ concrete 300mm
outside
5 mm 40 mm
150 mm
Support windowframe
300 mm
inside
Fixing for vertical movement, serving facade substructure
-Roofing -Roof insulation board 200mm
Ventilation duct
-Screed 50mm -Hollow core slab 150mm -Prefab beam, concrete 400x900mm
Fixing for horizontal movement, serving facade substructure
Fixing Casement frame Poured in beam stud
Casement frame
Flexiplate profile
Concrete floor slab with integrated floor heating / cooling
Finishing
Swelling tape PVC window frame
Apart from the general structural calculations and analysis, detail drawings for all the important parts and connections of the building have been created, with a special focus on the facade structure.
Vertical detail V3 1:5 Fireproof insulation
outside
inside
750 mm
all drawings are in mm
The biggest part of the plot surface is covered by an inclined roof structure that incorporates adjustable photovoltaic panels, which also serve as light control devices for the central atrium.
HEB300
Sill
Firevalve
-Prefab concrete panel 40mm -Facade Substructure, steel profile 21x42mm -Waterproof layer -Insulation 150mm -Casement frame, wood 42x143mm -In-situ concrete 300mm
Vertical detail V5 1:5 40 mm
150 mm
300 mm
-Finishing floor layer 20mm -Pressure layer 50mm -Concrete floor in situ 200mm -Insulation 150mm -Crawl space 600mm
Vertical detail V6 1:5 Support window frame
LEVEL
20 mm
Vertical detail V7 1:5
50 mm
Vertical detail V10 1:5
A L+16950mm
150 mm
The climate control system is based on the idea of a controllable airflow through a strategically placed solar chimney that acts as a landmark.
Steel profile
L-150mm 200 mm
300mm
The development of the Climate Institute Building includes solutions focusing on energy generation, climate control and structural integrity. All focus points have been translated into construction solutions and analysed through drawings, calculations and software analysis.
paving Coverboard in mortar
150 mm
Vertical detail V9 1:5
Cable trusses
Facade Substructure, steel profile 21x42mm
L+12000mm
Fundation, 400x400mm (21000mm long)
A Vertical detail V8 1:5
Solar chimney
Roof structure incorporating PV as light control louvers
Auditorium
Lighting Analysis. GSA Stress Analysis GSA sofware stress Analysis of roof trusses
Office first floor
Solar chimney structure. Calculation of metal sections sizes and duct size according to ventilation Analysis.
March 21, 12:30 September 21, 12:30
Office second floor summer situation
Office top floor
There are several reasons why the building developed the way it is. Our concept, defined in the beginning of the project, states that the building should be opened
June 21, 12:30
Light Study using Dialux Software
Main volume GSA stress analysis of columns and trusses/beams.
convinced it will improve the ‘openness’ of the atrium winter situation
December 21, 12:30 Sun Study The sun study above shows the sun rays and shadows during different periods over the year. It clearly shows that the roof gives enough protection in summer, spring and autumn around noon. In the winter the sun is able to penetrate deeper into the building. We accept this since the sun will help the building to warm up. A disadvantage can be a too bright sun in the offices, which can cause glare on computers.
Main volume GSA stress analysis of slabs
Lines of sight from offices
Sarajevo GREEN FESTIVAL 2013 Sustainable refurbishment of the Alipasino Polje Communist period Building Blocks in Sarajevo
An number of projects propose realistic design solutions for the built heritage of Sarajevo in order to improve the energy performance of the buildings, add value and improve the inner climate and living conditions. Especially the apartment blocks of the communist period have been an interesting focus point both architecturally/structurally and in terms of energy performance. On site examination of the structural condition of the buildings after the damages due to the war has been the first step towards the final design and analysis. e
Bigger glazed balconies. Openable glass panels
Insulated wall. 200mm Styropor with waterproof plaster
Part of wall used for preheating facade cavitye
Steel structure to support balconies. Integration of adjustable sun shading system
Semi public first level
Adidas Meet and Eat Building (Herzogenaurach, DE)
KNIPPERS HELBIG Advanced Engineering Projects
Construction 2016
Projects including different building and facade types.
Architect: Cobe Copenhagen
Meet and Eat
Facade type: Post and Beam (Steel) special corner detail Phases:
(HOAI 2-5) Design Development Construction Documents Specifications Report
Role: Responsible for complete facade/roof service package -Consulting -Structural/Thermal analysis -Detail Development and Drawings -Report (language: German)
Adidas Meet and Eat Building (Herzogenaurach, DE)
KNIPPERS HELBIG Advanced Engineering Projects
Construction 2016
Projects including different building and facade types.
Architect: Cobe Copenhagen
Meet and Eat
Innenpfosten (verzinkter Stahl pulverbeschichtet)
VSG Innenseite EPDM beschichtet 8mm Alu-Deckleiste beschichtet 13.52
12
6
12
Phases:
(HOAI 2-5) Design Development Construction Documents Specifications Report
8
Außenprofil (verzinkter Stahl mit Anstrich)
Role: Responsible for complete facade/roof service package -Consulting -Structural/Thermal analysis -Detail Development and Drawings
50
Innen
Kunststoffklotzung
13.52
Sechskantschraube M10 (Edelstahl) Hohlraum mit geschlossenporigem Dämmstoff XPS
8
12
6
12
Facade types: Post and Beam (Steel) special corner detail Steel/Aluminum skylight and roof
Außen
KNIPPERS HELBIG Advanced Engineering Projects Projects including different building and facade types.
FOM University for Economics and Management (Berlin, DE) Construction 2017 Architect: J. Mayer H. Architekten Facade types: Double Facade with curved and twisted aluminum profiles and double curved glass 7m high glass entrance facade (steel posts) Phases:
(HOAI 2-5) Design Development Construction Documents Specifications Report
Role: Responsible for complete facade/roof service package -Consulting -Structural/Thermal analysis -Detail Development and Drawings -Report (language: German)
KNIPPERS HELBIG Advanced Engineering Projects Projects including different building and facade types.
FOM University for Economics and Management (Berlin, DE) Construction 2017 Architect: J. Mayer H. Architekten Facade types: Double Facade with curved and twisted aluminum profiles and double curved glass 7m high glass entrance facade (steel posts) Phases:
(HOAI 2-5) Design Development Construction Documents Specifications Report
Role: Responsible for complete facade/roof service package -Consulting -Structural/Thermal analysis -Detail Development and Drawings -Report (language: German)
VOLT Multifuntional Mall (Berlin, DE)
KNIPPERS HELBIG Advanced Engineering Projects
Construction 2017
Projects including different building and facade types.
Architect: J. Mayer H. Architekten
VOLT Berlin
Facade types: Unitized facade system (aluminum) Roof Construction (steel) Large scale folding facade Phases:
(HOAI 2-5) Design Development Construction Documents Specifications Report
Role: Responsible for the facade/roof service package as part of a group of 3 engineers -Consulting -Structural/Thermal analysis -Detail Development and Drawings -Report (language: German)
Defining support system for every single concrete box/facade
VOLT Multifuntional Mall (Berlin, DE)
KNIPPERS HELBIG Advanced Engineering Projects
VOLT Berlin
20
Projects including different building and facade types.
systemgebundener KS Distanzrahmen
INNEN
100
St-Blech gekantet 3mm verzinkt
1.OG
80
Facade types: Unitized facade system (aluminum) Roof Construction (steel) Large scale folding facade
OK RD
Phases:
Hohlräume mit Miwo 1000° dicht ausgestopft
St-Blech gekantet 3mm verzinkt
350
Stahlblech 3mm verzinkt dampfdicht umlaufend verklebt
Miwo nach bauphysikalischer Erfordernis
St-Blech gekantet 3mm verzinkt
Trockenbauplatten für Schallschutz nach Erfordernis
EG 100
250
Mineralwolle gem. Vorgaben Bauphysik Gekantetes Stahlblech 3mm dampfdicht angeschlossen
10*
100
Mineralwolle gem. Vorgaben Bauphysik,
10*
150 2°
100
Zarge und Alu-Blech 3mm pulverbeschichtet
Untersicht Kassette aus Alublech 3mm, pulverbeschichtet Querstoße mit geschlossenen Fugen, vollflächig hinterlegt
Abdeckung Alu-Blech 3mm Pulverbeschichtet umlaufend luft- und dampfdicht angeschlossen
200
380
(HOAI 2-5) Design Development Construction Documents Specifications Report
Role: Responsible for the facade/roof service package as part of a group of 3 engineers
ESG rückseitig emailliert
AUSSEN
Architect: J. Mayer H. Architekten
OK FF
Lospunkt
Zwischenraum druckentspannt
Construction 2017
Gleitfolie
VK Zarge Uk AD
Lospunkt gem. Statik, Auflager verschieblich
-Consulting -Structural/Thermal analysis -Detail Development and Drawings -Report (language: German)
KNIPPERS HELBIG Advanced Engineering Projects Projects including different building and facade types.
Taipeh Airport Competition phase (2nd prize) (Taipeh, Taiwan)
Taipeh Airport
Architect: UNStudio Facade types: Stick system (steel) Roof Construction (spaceframe, standing seam) Phases:
Competition phases 1-2
Role: Consulting role -Consulting -Detail Development and Drawings
䫱 䫱
ቄቼᶎ
Tension rod Glasspanes
䱥䫱
Tension rod
昧໖ຝ
Transom
Vierendeel
8 9
ෞૡ殼ଧ Building sequence
3
2
1
KNIPPERS HELBIG Advanced Engineering Projects Projects including different building and facade types.
ILB Investitionsbank (Berlin, DE) Construction 2016 Architect: J. Mayer H. Architekten Facade types: Unitized facade system (aluminum) Phases:
(HOAI 5-8) Specifications Report Site Supervision
Role: Site Supervision Quality Control