405629657-Energy-Efficient-Building.pptx

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1. ENERGY EFFICIENT BUILDING/ GREEN BUILDING PREPARED BY SANTOSH BASNET

2. INTODUCTION Energy efficient buildings (new constructions or renovated existing buildings) can be defined as buildings that are designed to provide a significant reduction of the energy need for heating and cooling, independently of the energy and of the equipment's that will be chosen to heat or cool the building. The aim of a energy efficient building /green building is to minimize the demand on non-renewable resources, maximize the utilization efficiency of these resources, when in use, and maximize the reuse, recycling, and utilization of renewable resources.

3. Why energy efficient building?? 40% of Global Energy Consumption is building related 50% of Global Green House emission is due to Buildings Source: U.S. Energy Information Administration statistics (Graphic Published first in Metropolis Magazine, October 2003 Issue)

4. Objective of green building Low impact: Minimize impact on natural environment. Energy Efficient: Reduces energy usages and water usages. Healthy : protect occupant health and productivity. Minimize waste: the reduction in construction material waste by optimizing building dimensions and recycling.

5. Green Building Concept Sustainable site planning Building Design optimization Energy performance optimization Renewal energy utilization Water and Waste management Solid waste management Sustainable building material and construction technology Health, well being and environmental quality

6. Five major elements of green building design Sustainable Site Design Water Conservation and Quality Energy and Environment Indoor Environmental Quality; Conservation of Materials and Resources.

7. Various energy saving concept in green building Site selection and design : Evaluate site in terms of the location of buildings in order to optimize the use of passive solar energy, natural day lighting, and natural breezes and ventilation. Orientation :In the northern hemisphere, south facing windows have the greatest exposure to the sun. West facing windows need to be carefully designed. Walls and Roof : Designing the foundation, walls and roofs is to minimize conductive heat loss/gain while minimizing uncontrolled movement of air into the building. Energy Efficient Appliances: Use of energy efficient and eco-friendly appliance reduces utility cost. Waste reduction: Green architecture also seeks to reduce waste of energy, water and materials during construction. Materials: Use durable products and materials, Use materials made from recycled products.

8. Cost comparison A Green building costs 3-8% more than the conventional buildings. The cost is recovered within two to three years through savings in maintenance costs. The Life Cycle Cost of Energy efficient buildings is lower than that of the conventional buildings (Source: TERI-GRIHA)

9. Some green building example

10. Refrence Energy Efficient Buildings, Shristi Khosla and S.K. Singh Journal of the Indian Building Congress, 2010 Ionescu, C., Baracu , T., Vlad, G. E., Necula , H., & Badea , A. (2015). The historical evolution of the energy efficient buildings. Renewable and Sustainable Energy Reviews, 49, 243-253. Energy Information Administration, Residential Energy Consumption Survey (RECS), U.S. Department of Energy, 2003. Green Buildings Certifications, an Overview and Strategic Guidance for Schneider Electric Employees by Brandi McManus. www.greenbuilt.org www.worldgbc.org

11. Thank you ANY QUESTION??