Energy Analysis

Energy Analysis

Objective: Model use and building performance metric measuring how and how-much a facility consumes energy, that has been generated to improve the sustainability and performance of facility design.

Tools/ Software: Revit, Insight and Green Building Studios

Energy analysis (Utilization) is defined by BIM Dictionary as “A Model Use and a Building Performance metric measuring how and how-much a Facility consumes energy. High-performance buildings typically consume less energy (electricity for lighting, fossil fuels for heating, etc…) than other comparable buildings”

An energy analysis of the project was performed using BIMbased simulations such as Revit, Insight, and Green Building Studio. Retrofitting strategies were used to study the energy performance and thermal comfort of an existing building and reduce the reliance on the mechanical system. As a result of BIM tools, designers were able to experiment with various design solutions prior to executing the final design, saving the firm both money and time, while also contributing to more energyefficient buildings.

Performing Energy Analysis

Having a thorough understanding of energy consumption and improving building efficiency is crucial for reducing energy consumption. Building envelope design measures, as well as performance in humid and hot climates, are unknown at this time.

Inputs for Energy Model Generation in Revit

Revit collects weather data and sun path information from the local weather station according to location.

1. Identifying the project’s location as well as the weather station’s location.

2. Heating design temperature:~ 21℃

Energy Setting Inputs

To conduct an energy simulation, the energy model uses the information generated by Revit for walls, doors, roofs, windows, and floors.

3)

Generate energy models (in Revit) a) Weather data and sun path information (from weather station) b) Energy settings for walls, doors, roofs, windows and floors (generated from Revit) c) Advanced energy settings (e.g. material thermal properties (conceptual and analytical types)

Energy Analysis

Energy settings in Revit. Advanced Energy Setting Inputs

Energy settings affect the creation of energy models. Furthermore, they can be used to specify material properties and thermal properties within the Revit model, which may be used optionally.

Material Thermal Properties: Conceptual Types

Different components of the building, such as walls, roofs, ceilings, slabs, floors, and windows, have different thermal inputs that can affect the building’s heating and cooling loads. Material Thermal Properties: Conceptual Types

Material Thermal Properties: Analytical Types

Generate report Establish strategy

4) Create report from Green Building Studio

Energy-Saving Strategies

1. Building orientation

2. Window shades

3. Window-to-wall ratio

4. Window glazing

5) Establish Energy-saving strategies

5. Wall construction helps in reducing heat loss and heat gain

6. Lighting efficiency—average internal heat gain and power consumption of electrical lighting per unit floor area is lower based on the reduced usage of lighting during the day which is attained by proper availability of daylight.

Summary Result

A report from Green Building Studio provides information about the amount of energy and electricity consumed by various factors, including area light, external usage, miscellaneous equipment, space cooling, vent fans, pump backup, and hot water use.

Results and Inferences

Results and Inferences

Efficiency factors achieved through window-to-wall ratios and efficiency factors achieved through window shades.

Energy-Saving Strategies

1. Building orientation

2. Window shades

3. Window-to-wall ratio

4. Window glazing

Energy Analysis

5. Wall construction helps in reducing heat loss and heat gain

6. Lighting efficiency—average internal heat gain and power consumption of electrical lighting per unit floor area is lower based on the reduced usage of lighting during the day which is attained by proper availability of daylight.

7. The efficiency in daylighting an occupancy control can be achieved by usage of advancement in technology for daylight dimming and occupancy sensor system.

8. Panel efficiency which is attained by the percentage of the sun’s energy that will be converted to AC energy. Higher efficiency panels cost more, but they produce more energy for the same floor area.

Conclusion

There are several factors which contribute to energy consumption in the building, including: less energy benefits.

The study highlights the need to reduce the heat gain through the building envelope and improve thermal comfort. Based on the simulation results, façade designs can be used to control insulation efficiently, maintain a satisfying indoor environment, reduce energy demand, and support and consolidate architectural visions while contributing to energy reduction.

Using appropriate technology for designing the building envelope can help reduce these energy consumption factors. The building envelope plays a significant role in how much energy is consumed in a building. According to simulation results, proper shading devices and window glass are effective in reducing energy consumption, while roof construction shows

An important factor to consider while designing a building is the envelope’s impact on the amount of energy needed to heat and cool a building. The envelope should be optimized in order to reduce the amount of energy required for heating and cooling.

Energy models

The energy model is generated by Revit from inputs such as location, weather, and thermal properties and transmitted to Insight in the form of color codes for different components.

Energy Analysis

Revit 1. Set Site Location and Building Type 2. Use Conceptual Model or Building Design 3.Focus on optimizing form and orientation on openings, shades and exterior surface

Insight Simulate changes to: 1. Window-to-Wall Ratio 2. Orientation on Site 3. Thermal Performance of Envelop

Revit Refine building Quick and iterative decisions on sustainable design options

Insight 1.Compare building designs 2. Create categories 3. Adjust widgets across building designs 4. Determine changes to meet set target

Revit 1. Apply load reduction strategies from Insight 2. Generate heat and cooling load reports 3. Analyze and optimize iteratively

Insight 1. Analyze heating and cooling loads 2. Calculate EUI and Annual costs 3. Develop load reduction strategies

Revit 1. Select HVAC systems 2. Refine Building and Space type setting

Insight 1. Focus on HVAC Systems Widget 2. Evaluate impact on EUI/cost

Revit 1. Accurately model building elements 2. Apply Energy Analysis Properties to Spaces

Insight Ongoing analysis

Revit Ongoing Analysis and Optimization

Insight 1. Optimize building energy use 2. Test more variables and Save scenarios

Revit 1. Cost/Benefit Analysis 2. Client Engagement

Insight 1. Analyze design decisions 2. Mitigate increases in up-front costs with reduction in annual energy cost