PRESENTED BY: Anu Kafle (66003) Kamana Gurung (66016) Lelina Singh (66020) Samjhana Simkhada (66039) Timila Dangol (66051)
GREEN BUILDING
A practice of creating structures and using processes that are environmentally responsible and resource efficient. Throughout a building’s life -cycle from sitting sitting to design , construction , operation , maintenance , renovation and deconstruction. Provide comfortable living and working conditions to its occupants while minimizing its detrimental impact on the environment.
OBJECTIVE: Helps to reduce building-related environmental impacts while creating places that are healthier and more satisfying for people.
GREEN BUILDING
A practice of creating structures and using processes that are environmentally responsible and resource efficient. Throughout a building’s life -cycle from sitting sitting to design , construction , operation , maintenance , renovation and deconstruction. Provide comfortable living and working conditions to its occupants while minimizing its detrimental impact on the environment.
OBJECTIVE: Helps to reduce building-related environmental impacts while creating places that are healthier and more satisfying for people.
The Green Concept
Energy efficient
construction
techniques
CONCEPTUAL SKETCH OF GREEN BUILDING
WHAT IS GRIHA?
GRIHA
Green Rating for Integrated Habitat Assessment. Griha conceived by TERI and developed jointly by Ministry of New and Renewable Energy(MNRE), Government of India. It is a Green Building “Design Evaluation System”
Silent Points
GRIHA has been developed for the different agro-climatic Zones of India. Developed particularly for non-ac spaces or partially AC building. Evaluators are experts from different fields connected to the buildings and are from specific region where the building is situated Stresses on optimization of visual and thermal indoor comfort. Integrates all relevant Indian Codes and Standards to act as tools for implementation
Emphasis Minimize -resource consumption -waste generation -overall ecological impact
By Five R philosophy-Refuse -Reduce -Reuse -Recycle -Reinvent.
Why should you get your building rates? Reduced energy consumption without sacrificing the comfort levels (lower operational costs)
Reduced water consumption
Reduced system sizes (HVAC, transformers, cabling, etc.) for optimal performance at local conditions.
Reduced investment (Lifecycle costs)
Reduced destruction of natural areas, habitats, and biodiversity, and reduced soil loss from erosion etc.
Reduced air and water pollution (with direct health benefits)
Limited waste generation due to recycling and reuse
Reduced pollution loads
Increased user productivity
THE RATING SYSTEM There are 34 criteria of the GRIHA rating system under four main categories: Selection and site planning Conservation and efficient utilization of resources Building Planning and Construction Stage: To maximize resource(water, energy and materials) conservation and enhance efficiency of the system and operations •
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Building operation and maintenance Validate and maintain green performance levels/adopt and propagate green practices and concepts Innovation •
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Eight are mandatory, four are partly mandatory, while the rest are optional.
THE RATING SYSTEM NO
CRITERIA
PTS
1
Site selection
1
Partly mandatory
2
Preserve and protect the landscape during 5
Partly mandatory
construction/compensatory
depository
forestation 3
Soil conservation (till post-construction)
4
4
Design to include existing site features
2
Mandatory
5
Reduce hard paving
2
Partly mandatory
6
Enhance outdoor lighting system efficiency
3
7
Plan utilizes efficiently and optimize on-site 3
8
circulation efficiency Provide ,at least, minimum level of sanitation/safety facilities for construction workers
2
Mandatory
THE RATING SYSTEM NO. CRITERIA
PTS
9
Reduce air pollution during construction
2
10
Reduce landscape water requirement
3
11
Reduce building water use
2
12
Efficient water use during construction
1
13
Optimize building design to reduce conventional 6 energy demand Optimize energy performance of building within 12 specified comfort
14 15
Utilization of fly ash in building structure
16
Reduce volume, weight and time of construction by 4 adopting efficient technology (e.g pre-cast systems, ready-mix concrete, etc.) Use low-energy material in interiors 4
17
6
Mandatory
Mandatory
NO.
CRITERIA
PTS
18
Renewable energy utilization
5
Partly mandatory
19
Renewable energy based hot water system
3
20
Waste water treatment
2
21
Water re-cycle and re-use (including rainwater)
5
22
Reduction in waste during construction
2
23
Efficient waste segregation
2
24
Storage and disposal of waste
2
25
Resource recovery from waste
2
26
Use of low VOC paints/ adhesives/ sealants.
4
27
Minimize Ozone depleting substances
3
Mandatory
NO. CRITERIA
PTS
28
Ensure water quality 2 Mandatory
2
29
Acceptable outdoor and indoor noise levels
2
30
Tobacco and smoke control
1
31
Universal Accessibility
1
32
Energy audit and validation Mandatory
0
Mandatory
33
Operations and Maintenance protocol electrical and mechanical equipment
for 2
Mandatory
#
Total score
34
Innovation points (over the above 100 points)
4
#
Total points
104
100
Mandatory
Centre for Environmental Science & Engineering building (CESE) at IIT, Kanpur General Information
Project:
Centre for Environmental Science and Engineering
Location
IIT Kanpur
Climate
Composite
Built-up Area
4240 m2
Air-conditioned area
1912 m2
Energy consumption reduction 41% per year Water consumption reduction
70% below GRIHA’s benchmarks
GRIHA RATING
***** (5 stars)
Operational schedule
Day time, 6 working days in a week
First 5 star rated GRIHA building in IIT Kanpur
Trees preserved and protected
Solar PV and Solar Thermal systems
N-S Orientation with shading (roof/window) Outdoor solar lights Lesser paving
Green Building Design Features: The width of the floor plate is reduced for the same amount of floor plate area thereby allowing natural light to penetrate deep into the interior spaces It ensures that part of the façade is always shaded •
•
Centre for Environmental Science and Engineering Building at IIT, Kanpur has been taken as an example to illustrate how the building attempted various GRIHA criteria to make it into a green building.
Sustainable site planning Several best practice guidelines were adopted like demarcation of site for construction: Top soil was excavated, stored and preserved the disturbed Installationoutside dust screen around the construction site to prevent air disturbed area •
•
pollution and spillage undisturbed site area
to
Air pollution control
Centre for Environmental Science and Engineering Building at IIT, Kanpur has been taken as an example to illustrate how the building attempted various GRIHA criteria to make it into a green building.
Sustainable site planning Several best practice guidelines were adopted like demarcation of site for construction: •
Several trees on site were protected
Tree preservation
Centre for Environmental Science and Engineering Building at IIT, Kanpur has been taken as an example to illustrate how the building attempted various GRIHA criteria to make it into a green building.
Sustainable site planning Several best practice guidelines were adopted like demarcation of site for construction:
Irrigation water demand has been Moreby than 50% of the reduced more than 50% in Adequate health and safety measures related to construction paving is shaded byBenchmark comparison to GRIHA trees •
•
•
Sedimentation tank
Water conservation There are two ways of conserving water during post construction and after the building is occupied reduction:
In landscape water fixtures demand Low flow plumbing are by than 50% was in usedmore in the building resulting achieved use ofconsumption minimum reduced bywater grass/lawn area from GRIHA’s benchmark in this • •
building by 62%
Conservation and efficient utilization of resource: energy Maximum points weight age in GRIHA is given for energy conservation. The criteria and commitment for energy conservation could be divided into three parts: a. Energy: end use b. Energy: embodied and construction c. Energy: Renewable energy utilization
a. Energy: End Use
Reduce cooling load in the air conditioned spaces and to in the non air conditioned areas
Efficient window design by selecting efficient glazing,
inside all the laboratory spaces of the building
Roof shaded by bamboo trellis and green cover from the roof through integration of skylights and ventilators selected that complies with the efficiency recommended by the Energy Conservation Building code
a. Energy: End Use
Variable Frequency Drive installed in the Air Handling Units
Low energy strategies such to cool the condenser
Water loop, integration of thermal energy storage and enabled reduction in chiller capacity
Integration of energy efficient lighting design that complies to the recommendations of ECBC. with artificial lighting.
Optimized architectural design and integration of energy efficient fixtures has resulted in the reduction in annual energy consumption by 41% from GRIHA’s benchmark
Energy: embodied and construction 1. Portland Pozzolona Cement (PPC) with fly-ash content is used in plaster and masonry mortar. 2. Wood for doors is procured from commercially managed forests. Modular furniture made room particle board is used for interiors. Energy: renewable energy utilization
1. Renewable energy from photovoltaic panels provide annual energy requirements equivalent to 30% of internal lighting connected load. 2. Hot water demand is met by solar hot water system.
The building has completed its evaluation process and has achieved FIVE STAR TERI GRIHA rating. The evaluation committee has awarded a final score of 93/100 to the building
Some special features of this building are as follows: · The building is fully complaint with the ECBC (Energy Conservation Building Code). · Sustainable site planning has been integrated to maintain favorable micro climate. · The architectural design has been optimized as per climate and sun path analysis. · Energy efficient artificial lighting design and daylight integration. · Energy efficient air conditioning design with controls integrated to reduce annual energy consumption. · Passive strategies such as an earth air tunnel incorporated in the HVAC design to reduce the cooling load •
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•
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•
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CASE STUDY- Suzlon One Earth Introduction •
•
Climate: hot semi-arid and tropical wet and dry climate Has been awarded with “Best Green Building Gold award at MIPIM Asia 2011”
City
Pune, India
Owner:
Suzlon Energy Ltd.
Type
Office Block with a Corporate Learning Center(College)
Site area
45392 sq.m
Principal architect
Christopher Charles Benninger Architects
Objective
To showcase as building project with minimal impact on the environment
About Design •
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Built on a concept of Global Village Purpose is to provide protection from climate hence is climate responsive Building envelope been designed taking into account the climate of Pune, Maharashtra and India Buildings are low rise, direction oriented, have double glazed glass to provide sufficient light into building but not heat
Only Building in India with both LEED Platinum and GRIHA Five Star certified campus. India’s first campus 100% on renewable energy
Driving Factors Sustainability Principles of sustainability form site selection, design, engineering, construction, material and operations Energy Water Waste Material •
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Green Building Design Features •
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Passive design strategies for visual and thermal comfort with minimum interventions of technologies Orientation of the blocks face N, S, NW, S-E for adequate day lighting and glare control Use of louvers for shading Office Block partly self-shaded to create interesting office atmosphere, break-out spaces as small terraces are scattered all over the office block To minimize disturbance on site, to ensure easy maintenance, various utility corridors have been provided coupled with the roads and pathways on site.
Green Building Design Features •
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Use of high efficiency mechanical systems significantly reduce energy consumption of the building Equipped with LED lights governed by motion sensors i.e. turn on only when people are seated on their seats reduces lighting load to 0.8 W/sq.ft. HVAC system like pre-cooling of fresh air heat recovery/exchanger mechanisms to minimize energy consumption in HVAC Managed to reduce energy consumption by 47% below the GRIHA criterion 14 benchmark figures
Green Building Design Features •
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•
•
•
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Adopt standards for energy and water management which is reflected in their projected energy and water savings Use of renewable energy systems as solar PV, windmills Reduce water consumption by use of low flow fixtures (65% less water than conventional buildings for sanitary purposes) Reduce landscape water requirement by 50% Over 55% of water is recycled and reused within the complex Use of low-energy materials, recycled content Minimize environmental impact with contemporary feel to the buildings and spaces, thereby proving the point that green buildings can be as aesthetically pleasing as any conventional building and yet are able to have minimal negative impact on environment.
Sustainability in landscape practices Using recycled water Reduced water consumption Use of native plants Creating new Habitats
COMPARISON BETWEEN LEED INDIA AND GRIHA
Leed india
Griha
led by the Indian Green Building Council (IGBC)
conceived by TERI and developed jointly with the Ministry of New and Renewable Energy, Government of India.
Rating is primarily based on per capita energy consumption
Is an easy, yet comprehensive rating system designed for India
“Too American" as the united states green building council (USGBC)
GRIHA on the other hand is made in India, for India
LEED offers fewer points for water conservation
GRIHA takes a major part of its classification system from LEED
building commissioning is a mandatory requirement ,not a common practice in India
Material and resource sustainability criteria are poorly
Leed india
Griha
Classification
1. Site Planning 2. Health and well being during construction 3. Conservation and efficient utilization of resources 4. Recycle, reuse, and recharge of water 5. Health and well-being 6. Operation and maintenance 7. Innovation points
1. Sustainable sites 2. Water Efficiency 3. Energy and Atmosphere 4. Materials and Resources 5. Indoor Environmental Quality 6. Innovation& Design process Certification is provided as per the scores obtained as follows Score rating 26 - 32 certified 33 – 38 silver 38 – 51 gold 51 – 69 platinum
Score Rating 50-60 one star 61-70 two star 71-80 three star 81-90 four star 91-100 five star
Conclusion Green is not just about energy consumption… Green buildings are not just more energy efficient than their conventional counterparts, they also create healthier work, learning and living environments, with more natural light, natural ventilation and cleaner air, and contribute to improved employee and student health, comfort, and productivity.
Bibliography www.grihaindia.org/ en.wikipedia.org/wiki/Indian_Institute_of_Technology_Kanpur www.asci.org.in/eeibe/Resources/Presentations/Mr.%20Siva%20Kish an.pdf www.grihaindia.org/files/Manual_VolI.pdf www.teriin.org/upfiles/projects/ES/2005BS28_20081216112849.pdf
