Energy Efficient Buildings for Environmental Sustainability
Building energy efficiency is crucial for environmental sustainability due to energy consumption and GHG emissions. Thermal comfort and integrated design processes play key roles in achieving efficiency and reducing overall energy use in buildings.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
BEEP Integrated Design Process for Energy Efficient Buildings Indo-Swiss Building Energy Efficiency Project
Why environmental sustainability depends on Energy Efficient Buildings? Globally, buildings use about 40% of energy and they emit approximately 1/3rd of GHG emissions In India, buildings account for 1/3rd of the electricity consumption By 2047, buildings will become the highest consumer of electricity But . Energy sources are limited Burning more fossil fuels to generate energy means increased GHG emissions & higher global temperatures Source: Ministry of Statistics & Programme Implementation, 2018 Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 2
Energy Efficient Building and Thermal Comfort?? Thermally comfortable buildings are necessary to maintain the health and well-being of the occupants But, only 5% of Indians have access to cooling- though this number is increasing. 75% of a person s time is spent inside buildings What is needed? Provide thermal comfort with reduced energy use. Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 3
BEEP Integrated Design Process & Charrettes Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 4 4
Conventional Design Process Concept design Schematic design Construction drawings Design development Construction Commissioning Client Architect Structural Engineer HVAC Engineer Green/Energy Consultant .. Project manager Contractor . Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 5
Integrated design- What do you integrate? Integration of: Multiple design professionals Multiple aspects of building design and construction Source: Adapted from Lechner, Norbert: Heating, Cooling, Lighting : Sustainable Design Methods for Architects Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 6
Integrated Design Process Experience shows: Concept design Schematic design Construction drawings Design development Construction Commissioning Cost-effective and energy efficient design (25-40% energy savings at no/ marginal cost increase) is possible if the architect, engineer and client work together in a Design Charrette/Workshop during the early design phase. Client Architect Structural Engineer HVAC Engineer Green/Energy Consultant .. Efforts / Costs Energy saving potential More savings are achieved when the architects and engineers continued to work together in the design phase. Timing for Design Charrette Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 7
Why Integrated Design? Better thermal comfort Achieve sustainability with no additional investment Reduced energy use Reduced equipment size Attract better tenants / occupants Reduced operation & maintenance cost Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 8
Stages of an Integrated Design Process Concept design Schematic design Construction drawings Design development Construction Commissioning Conducting a charrette Follow-up, checks & commissioning Charette preparat ion Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 9
What is a Charrette? The word Charrette is a French word, originally meaning a cart. It has evolved to mean a collection of ideas or a session of intense brainstorming. This happened in the 19th century, when students of L ecole des Beaux Arts in Paris would ride in the cart sent to retrieve their final art and architecture working together to complete or improve these projects. projects, frantically Today it implies an intensely focused activity intended to build consensus among participants and develop specific design goals. Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 10
Who participates in a charrette? Client Owner Promoter Building operator, Facilities / O&M etc. Users Building operator, Facilities / O&M etc. Design Team Architect HVAC consultant Electrical consultant Green Building Consultant etc. Landscape designer Interior designer Building execution team Construction manager Contractor Project manager Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 11
Stages of an Integrated Design Process Charette preparation Prepare the project brief Identify an individual or team to own / lead the integrated design process Assemble the design team, and (if possible) the execution team Create a few conceptual architectural designs Carry out climate and other preliminary analysis to understand what strategies may work Get background information on possible strategies (Technical specs, cost .) Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 12
Stages of an Integrated Design Process Conducting a charrette DAY 1: Fix the energy / comfort goal for the building DAY 2: Finalise the set of strategies that may be applied DAY 3: Test out the effectiveness of the strategies o Energy savings and comfort (through simulation tools) o Capital and operational cost (cost database tool) Develop alternative designs DAY 4: Decide on final strategies / design Decide on next steps & assign responsibilities to track progress Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 13
Stages of an Integrated Design Process Charrette Follow-up Prepare a charrette report and circulate to all participants Make sure the lines of communication are open between all charrette participants Hold periodic meetings to review the implementation of the charrette recommendations Prepare a final assessment after the completion of the project and after occupation. Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 14
Charrette tools (Analytical) Climate analysis tool (e.g. ClimateConsultant etc.) Weather data (.epw files etc.) Basic sun-path tool (e.g. Sketch-up, Ecotect etc.) PMV distribution just over the desk Tool to calculate heat gains through building envelope (e.g. RETV compliance tool) Thermal comfort and energy simulation tool (e.g. EnergyPlus, DesignBuilder etc.) Daylight simulation tool (e.g. Radiance, DesignBuilder) Cost Database tool Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 15
BEEP Integrated Design Charrettes Technical support to 22 building projects (IT buildings, hospital, offices, residential complexes, academic institutions,..) >1.5 million m2 built-up area 25-40% estimated energy savings Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 16
Building Design: Integrated Design Process Hospital Educational campus Residential township Training institute & govt. office World Trade Centre Office & Retail complex Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 17
Thank you For details contact: Saswati Chetia; saswati@gkspl.in Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project Indo-Swiss Building Energy Efficiency Project 18 18
