DKTE’s Yashwantro Chavan Polytechnic . Presentation on Green Building. Presented by- Ekata Katti . Afrin P atel. Rameshwari Sutar Amruta Suryawanshi .
Contents What is Green building? Objectives Concept, need & benefits of Green building Some features of Green building Agencies of Green building evaluation Comparative Rating by LEED and GRIHA Case study Some techniques & material used in green building Economy of green building. Conclusion Reference.
Objectives Understanding the concept of green building. Analysis the rating criteria of LEED & GRIHA. Case study of existing green building Comparison between normal building & green building.
What is Green building? B uilding is one which uses lesser energy, water, natural resources & creates less waste and is healthier & safer for the people to live in.
Concept of Green Building 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
Need of Green building Utilization of natural resources rapidly and erractically . Conventional building have been identified as the largest source of green house gas emission. They affect air quality, health & contribute to climate change.
Benefits of Green building Environmental benefits Enhance and protect biodiversity and ecosystems. Improve air and water quality. Reduce waste streams. Conserve and restore natural resources .
2.Economical benefits. Reduce operating costs. Create, expand markets for green product and services. Improve occupant productivity. Optimize life-cycle economic performance.
3.Social benefits Enhance occupant comfort and health. Heighten aesthetic qualities. Minimize strain on local infrastructure. Improve overall quality of life
Some Features of Green building . Energy saving to the extent of 30 – 40 % 2. Enhanced indoor air quality. 3 .Use of non-toxic material. 4 . Increased water saving up to 20% - 30% & efficient use of water recycling.
1. Energy Saving Energy efficiency can be done by providing – I . By proper design of building.
II. Use of renewable energy. Use of alternative renewable sources of Power such as Solar Power, Bio mass, Wind Power, etc. In buildings, it is achieved by installing solar panels and photovoltaic, Solar water heater, natural lighting and ventilation and by use of low consumption electrical appliances.
2. Enhanced indoor air quality. Constructing green building emphases more on the designing of ventilation system so that the people get the filtered, clean air and proper lighting most of the time.
3 . Use of non-toxic material Material Efficiency can be achieved by, Using eco friendly materials Construction waste management Use of regional and rapidly renewable materials Use of wastes and debris of demolition works Use of Solar Reflective Glass and Low VOC paints for better indoor air quality
4 . Water efficiency. Water Efficiency can be achieved by, Treatment of waste water and Recycling of Grey water. Water conservation and ground water recharge by Rainwater harvesting Controlled water use and wastage reduction Reducing storm water runoff by efficient landscaping
Agencies of green building evaluation LEED The criteria of LEED- Sustainable Site Development. Water Savings. Energy Efficiency . Materials Selection. Indoor Air Quality LEED certification is available in four progressive levels according to the following scale: There are 100 base points; 6 possible Innovation in Design and 4 Regional Priority points Certified 40–49 points. Silver 50–59 points. Gold 60–79 points. Platinum 80 points and above.
2 . GRIHA The criteria have been categorized as follows. Site Selection and Site planning 1.1 Conservation and efficient utilization of resource. 1.2 Health and well-being. b ) Building planning and construction stage 2.1 Water. 2.2 Energy: end use. 2.3 Energy: embodied and construction. 2.4 Energy: renewable. 2.5 Recycle, recharge, and reuse of water. 2.6 Waste management. 2.7 Health and well being . c) Building operation and maintenance
Rating system of GRIHA GRIHA rating system consist of 100-points Different levels of certification (one star to five star) can be awarded based on the number of points earned. The minimum points required for certification is 50 – One star Constructions scoring 50 to 60 points – Two star 61 to 70 points – Three star 71 to 80 points – Four star 81 to 90 points – Five star
Some of the Famous Green buildings in India CII - Sohrabji Godrej Green Business Centre The building was the first LEED Platinum-rated building for New Construction (NC) outside of the US. According to the Indian Green Building Council, the CII-Godrej GBC building “marked the beginning of the Green Building movement in India.”
2. Biodiversity Conservation India Ltd (BCIL) – Bangalore BCIL-ZED ( ZED stands for “Zero Energy Development”) is one of Asia’s largest Green Building platinum-rated residential apartment complex is achieving lots of awards related to the designing and the structure of building. There are 44 interconnected rainwater wells that lead to a 400000 litre water tank located under the road behind the housing complex.
Some other Green building. ITC Green Centre, Gurgaon – Platinum-rated Suzlon Energy Limited , Pune – LEED Platinum-rated GRIHA – 5 Star Nokia - Gurgaon – Gold rated
Green building Rating System Methodology for rating buildings by using the most important determinants affect the buildings like Energy Water Carbon Emissions Transportation Material.
Comparative Rating by LEED and GRIHA Overview and Scope of rating programs for new construction LEED (Rating point) GRIHA (rating point) Sustainable architecture & design (05) Site Planning(08) Site selection & planning (14) Construction management(09) Water conservation (18) Energy (20) Building material & resources (16) Occupant comfort and well being(12) Indoor air quality. (12) Water(17) Innovation and design (07) Sustainable building material(14) Solid waste management(06) Socio economic strategies(06) Performance validation and monitoring(12)
1.Site Selection and planning LEED site selection and Planning(14) GRIHA site Planning (08)and Construction Management(09) Local Building regulations(mandatory) Site Selection(01) Soil Erosion control(mandatory) Low Impact design(04) Basic amenities(01) Design to mitigate Urban heat island effect(02) Proximity to public transport(01) Site imperviousness factor(01) Low emitting vehicles(01) Preserve and protect landscape during construction(04) Natural topography and vegetation(02) Construction management practices(04) Preservation or transplantation trees(01) Air and water pollution control(01) Heat island Reduction Roof, Non-roof (02 each) Outdoor light pollution reduction(01 Universal design(01) Basic facilities for construction workforce(01) Green building guidelines(01)
2.Energy efficiency Energy efficiency criteria LEED energy efficiency criteria(28) GRIHA energy efficiency criteria(20) Ozone depleting substances Energy Efficiency(13) Energy Efficiency(13) Commissioning plan for building equipment and systems Renewable energy utilization(07) Ecofriendly refrigerant(01) Zero ODP material(00) Enhance energy efficiency(15) Onsite renewable energy (06) Off site renewable energy(02) Commissioning and post installation of equipment and systems(02) Energy metering and management(02) Minimum Energy efficiency Renewable energy utilization(07)
Water use criteria LEED water efficiency criteria(18) GRIHA water use criteria(17) Rain water harvesting for roof and non roof(04) Use of low flow fixtures and systems(04) Water efficient plumbing fixtures(05) Reducing landscape water demand(04) Landscape design(02) Water quality(02) Management of Irrigation systems(01) On site water reuse(05) Wastewater treatment and reuse(05) Rainwater recharge(02) Water metering(01)
3. Building material and resource LEED building material criteria(16) GRIHA building material and solid waste management criteria(20) Utilization of BIS recommended waste materials in building structure (6) Sustainable building Material(08) Reduction in Embodied energy of building structures(04) Organic Waste Management, Post Occupancy(02) Use of Low environmental impact material in Interior(4) Handling of waste during construction(1) Avoided post construction Landfills(4) Use of certified building materials, products and equipment(5) Treat organic waste on site(2)
4 . Occupant comfort with indoor environmental quality LEED Indoor Environment quality criteria(12) Occupant comfort and well being(12) Minimum fresh air ventilation Achieving indoor comfort requirement(06) Tobacco smoke control Maintaining good IAQ(04) CO2 monitoring(1) Use of low VOC paints and other compounds in building interiors(02) Day lighting(2) Outdoor Views(1) Minimize Indoor outdoor pollutants(1) Low emitting material(3) Occupant Well-being Facilities(1) Indoor Air Quality Testing, After Construction and Before Occupancy(2) Indoor air Quality management during construction(1)
Rating distribution for LEED and GRIHA LEED Points GRIHA Points Certified 40-49 One Star 25-40 Silver 50-59 Two Star 41-55 Gold 60-74 Three Star 56-70 Platinum 75-89 Four Star 71-85 Super Platinum 90-100 Five Star 86- more
CASE STUDY. One Earth Suzlon , Pune.
About Suzlon -One Earth, Pune. Location :-Pune, Maharashtra Site Area :-45392m2 Built-up Area:-70865m2 GRIHA rating:-5 Stars LEAD:-Platinum
About Suzlon -One Earth, Pune The total size of land is 10 acre Have divided into 5 blocks Sky lounge Sun lounge Aqua lounge Tree lounge Air lounge
Passive architectural design Orientation:- Facades of the building face north, south, north-west and south-east. 100% shading by external louvers on first and second floor. Small terraces created in all blocks to promote interaction with external environment.
Plan of building.
Aim of One-Earth Suzlon . Sustainability- a way of life To create a truly inspiring place to work. To optimize use of natural resources.
Green Features 1.Sustainable site planning Dust screens are provided around construction area. Soil erosion control measures are adopted on site Utility corridors designed along roads and pathways on site.
2.Material. 15% of cement is replaced with fly ash. Post-tensioning slab. Bamboo flooring. Low VOC paints.
3.Renewable Energy and Utilization. 100% powered by combination of onsite and offsite renewable energy source. 6% of total energy consumption comes from onsite. Remaining energy from offsite suzlon wind turbines. Overall 50% electricity is saved.
Renewable Energy Technologies Installed on site Solar energy – Installed capacity is 13.44W. Wind energy – 18 windmills of 4.75kW capacity each. 250000 unit of electricity generated annually.
3.Lighting Use large scale LED street lighting. Day light harvesting achieved though glass and louvers.
4.HVAC & Ventilation Installation of water cooled VRC – saving 40% energy. T reated fresh air unit are installed. Installation of CO2 sensor. High efficiency mechanical system to reduce energy consumption.
5.Water & Sanitation Rain water harvesting tank capacity = 1000 cum. S eparate water treatment plant – 240 m3/day used HVAC, gardening, flush. 100 cum/day solar water heating system.- Save 1.4lakh kWh of electricity annually.
5.Water and Sanitation. All vegetation are native species.- 50% water is conserved. Sewage treatment plan of capacity 120cum/day. Zero discharge of waste water into natural stream. Landscape area above slab is provide with pipeline for collection of storm water.
6.Waste Management. Zero waste management policy. Waste segregation system in provided. Organic waste is convert into manure by OWC of capacity 100kg/hr. Electrical & electronics waste is treated through Pollution Control Board. Recyclable material is sent for recycling .
7.Green Transport Carpooling is encouraged by providing 5% dedicated parking areas. Electrical Vehicles. Dedicated spaces for cycle parking in the premises.
Conclusion on case study 100% renewable energy is utilized. Overall 50% of electricity is save. 250000 unit of electricity generated annually . Zero waste management system.
Some techniques used in Green building. Cavity wall Cavity wall consist of two skins separated by hollow space. The skins are commonly masonry such as brick or concrete wall. The cavity wall prevent the direct exposure of sun on main building wall
2. Openings in Cavity wall For proper ventilation between main wall and cavity wall openings on cavity wall is provided.
3. Filler Slab In the filler slab the quantity of concrete is reduced by providing filler material. Mostly managalore tiles are used in filler slab.
4. Plantation of lawns. Lawns are provided near the window. For those windows whose sill level is less than general sill level. 5.Doors & window pattern The bottom portion of window should be covered by lowers, to enter cool air. The upper portion of doors should covered by ventilators, to remove hot air.
Economy in Green building Considerable research and analysis has been carried out with regard to the cost impacts of a green building. The cost could be slightly higher than a conventional building. But then, this needs to be seen with a different paradigm.
Economy in Green building The incremental cost would appear small if the baseline design is already at a certain level of good eco-design; it would appear huge if the base design has not considered green principles. A upfront investment of about two percent of construction costs typically yields life cycle savings of over ten times the initial investment
Conclusion Green or sustainable Building is a designing concept that reduces the environmental impact of buildings through innovative land use and construction strategies. A Green Building is a building which incorporates the use of clean, renewable energy and efficient use of natural resources and recycled or recyclable materials to provide healthy indoors Energy saving to the extent of 30 – 40 % & Increased water saving up to 20% - 30% & efficient use of water recycling
Conclusion The rating tool set benchmarks for green measures for constructing and using buildings to make them sustainable and to reduce their negative impacts on environment. The most representative building environment assessment schemes in India that are in use today are Leadership in Energy and Environmental Design (LEED) and Green Rating for Integrated Habitat Assessment (GRIHA ) A minimal upfront investment of about two percent of construction costs typically yields life cycle savings of over ten times the initial investment
Reference Ms Mamta (Assistant Prof. ) (2015) “ Green Building: A New Wave In India”, IJSRM journal, Vol No.-3\Edition No.- 3781-3790|2015 Hema . C, Assistant Prof. (2012) “ Green Techniques In Building Construction”, IJBTT, Vol No-2|Edition No.- ISSN: 2249-0189 Mr. Rohan V. Nalawade & Dr. S. G. Sonar. (2016) “ Comparative Review criteria utilization by LEEED and GRIHA: Green building Rating systems for New construction in India ”, IJSRP, Vol No.-6|Edition No: ISSN 2250-3153 Mr. Iliyas Ikbal Sande , Prof. Mrs. N.S. Phadtare . (2015) “ Comparative Study of LEED and GRIHA Rating System”, Journal of information, knowledge and research in Civil Engineering, Vol No-3|Edition No: ISSN 0975-6744 www.usgbc.org/projects/suzlon-one earth.