CASE STUDY

CII-GREEN BUSINESS

CENTRE India’s first Platinum Rated Green Building

Made By- Naman Sukhija

Intern (27 May 2015 – 10 July 2015)

JK Lakshmipat University, Jaipur, Rajasthan

JULY 9, 2015 INDIAN GREEN BUILDING COUNCIL

Survey No 64, Kothaguda Post

Near Kothaguda Cross Roads

Ranga Reddy District, Hyderabad, Telangana, India, 500081

Hyderabad - 500 084

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Table of Contents Unit -1 Introduction ................................................................................................................................ 3

Importance of Green Buildings ........................................................................................................... 3

CII-Green Business Centre ................................................................................................................. 4

Key Green Features ............................................................................................................................. 4

Unit -2 Sustainable Architecture and Design .......................................................................................... 5

Site Preservation ................................................................................................................................. 5

Integrated Design Approach ............................................................................................................... 8

Passive Architecture ............................................................................................................................ 9

Unit-3 Site Selection and Planning ....................................................................................................... 12

Soil Erosion Control and Preservation .............................................................................................. 12

Preservation and Transplantation of Trees ........................................................................................ 14

Heat Island Reduction ....................................................................................................................... 15

Universal Design ............................................................................................................................... 16

Unit-4 Energy Efficiency ...................................................................................................................... 17

Building Energy Consumption ........................................................................................................ 17

Energy Efficiency Measures ............................................................................................................. 18

Unit-5 Building Materials and Resources and Indoor Environmental Quality ..................................... 22

Unit-6 Water Conservation and Scope of Improvement ....................................................................... 25

Water Distribution in world .............................................................................................................. 25

Waste water treatment and reuse ...................................................................................................... 27

Working ........................................................................................................................................ 27

-Scope of Improvement ..................................................................................................................... 29

Rain Water Harvesting System: ............................................................................................ 29

Water Metering: .................................................................................................................... 29

More uses of phytoremediation treated water: ...................................................................... 29

Scheduled check for all plumbing fixtures: .......................................................................... 29

Reducing water for landscaping: ........................................................................................... 29

Installing Dishwasher in kitchen: .......................................................................................... 29

Educational Signboards: ....................................................................................................... 29

Efficient Flushing System: .................................................................................................... 29

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Table of Figures

Figure 1-CII-Sohrabji Green Business Centre, Hyderabad ..................................................................... 4

Figure 2 Contour (Plateau) preserved on site .......................................................................................... 5

Figure 3 Retained Natural Rocks ............................................................................................................ 6

Figure 4 Retained Natural Rocks ............................................................................................................ 6

Figure 5 Retained Natural Landscape ..................................................................................................... 7

Figure 6 Retained Natural Landscape ..................................................................................................... 7

Figure 7 Preserved Water Body .............................................................................................................. 8

Figure 8 Jaali Walls and shading from trees ........................................................................................... 9

Figure 9 Wind Tower (Passive Cooling) .............................................................................................. 10

Figure 10 Skylight................................................................................................................................. 11

Figure 11 Naturally Shaded Parking ..................................................................................................... 11

Figure 12 Honeycomb trays .................................................................................................................. 12

Figure 13 Water diverted to sediment basins ........................................................................................ 13

Figure 14 Natural Vegetation ................................................................................................................ 14

Figure 15 Grass Pavers ......................................................................................................................... 15

Figure 16 Ramp for easy access to the main entrance .......................................................................... 16

Figure 22 Building Energy Consumption ............................................................................................... 17

Figure 23 Wind Tower ........................................................................................................................... 18

Figure 24 Glazing and High Performance Glass .................................................................................. 19

Figure 25 North Light Glazing.............................................................................................................. 20

Figure 26 Superfan ................................................................................................................................ 20

Figure 27 Open space for daylight and high performance glass ........................................................... 21

Figure 28 Segregation of Waste and Artificial Composter ................................................................... 22

Figure 29 Ceramic Tiles used for flooring ............................................................................................ 23

Figure 30 Cladding ............................................................................................................................... 24

Figure 17 Distribution of Global Water ................................................................................................. 25

Figure 18 Rain Water Harvesting Pond ................................................................................................ 26

Figure 19 Sprinkler System for turf ...................................................................................................... 26

Figure 20 Drip Irrigation system for the plants ..................................................................................... 27

Figure 21 Phytoremediation Plant ........................................................................................................ 28

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Unit -1 Introduction

Green building is the practice of creating structures and using processes that are

environmentally responsible and resource-efficient throughout a building's life-cycle from

siting to design, construction, operation, maintenance, renovation and deconstruction. A green

building is energy efficient, water efficient, protects occupant’s health and comfort, improves

productivity, reduces waste, promotes recycling and reusing materials, least possible pollution

and environment degradation, preserves natural landscape, ensures sustainability and use

naturally available local materials etc.

Importance of Green Buildings

The growth and development of our communities has a large impact on our natural

environment. The manufacturing, design, construction, and operation of the buildings in which

we live and work are responsible for the consumption of many of our natural resources. The

green concepts and techniques in the building sector can help address international issues like

water efficiency, reduction in fossil fuel use for commuting, handling of consumer waste and

conserving natural resources. Most importantly, these concepts can enhance occupant’s health,

productivity and well-being.

Environmental Benefits

Enhance and protect biodiversity and ecosystems

Improve air and water quality

Reduce waste streams

Conserve and restore natural resources

Economic Benefits

Reduce operating costs

Improve occupant productivity

Enhance asset value and profits

Optimize life-cycle economic performance

Social Benefits

Enhance occupant health and comfort

Improve indoor air quality

Minimize strain on local utility infrastructure

Improve overall quality of life

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CII-Green Business Centre

Location – Hyderabad, Telangana

Promoter – Confederation of Indian Industry (CII)

Site Area- 4.5 Acres; Built up area – 20,000 SF

Architect – Ar. Karan Grover, KGA

Landscape Architect – Prof. M. Shaheer

MEP Consultant – Dr. P.C. Jain & Mr. Ashish Rakheja, AECOM India

Commissioning Authority – C R Narayana Rao Architects & Engineers

Civil Contractor – Consolidated Construction Limited

The CII – Sohrabji Godrej Green Business Centre in Hyderabad is the first LEED Platinum

rated building in India. It offers advisory services to the industry in the areas of: green

buildings, energy efficiency, water management, environmental management, renewable

energy, green business incubation, and climate change activities.

Key Green Features –

Renewable Energy: Solar PV systems

Indoor Air Quality: Air Quality Monitoring, high efficiency HVAC system, high

performance glass, natural daylight and a passive cooling system using wind towers.

Roof gardens and Rain water harvesting etc.

The extensive landscape is home to 600 varieties of trees, most of which are native and

adaptive to local climatic conditions.

Figure 1-CII-Sohrabji Green Business Centre, Hyderabad

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Unit -2 Sustainable Architecture and Design Integrated Design Approach

Site Preservation

Passive Architecture

Site Preservation More than 70% of the existing landscape and contour was retained on the surface. Site Preservation is

very important to minimise the site damage and associated negative environmental impacts.

Figure 2 Contour (Plateau) preserved on site

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Figure 3 Retained Natural Rocks

Figure 4 Retained Natural Rocks

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Figure 5 Retained Natural Landscape

Figure 6 Retained Natural Landscape

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Figure 7 Preserved Water Body

Integrated Design Approach These members from multi-disciplinary fields were involved in the project for effective decision-

making and enhanced building performance, right from conceptual stage till completion of the project.

Architect – Ar. Karan Grover, KGA

Landscape Architect – Prof. M. Shaheer

MEP Consultant – Dr. P.C. Jain & Mr. Ashish Rakheja, AECOM India

Commissioning Authority – C R Narayana Rao Architects & Engineers

Civil Contractor – Consolidated Construction Limited

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Passive Architecture

Figure 8 Jaali Walls and shading from trees

Jaali walls are used which are a good source of ventilation and daylight. Shading from trees are provided

adjacent to the walls which reduces the heat transmitted through the walls because of direct sunlight.

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Figure 9 Wind Tower (Passive Cooling)

A wind tower is a traditional Persian architectural element to create natural ventilation in buildings.

One of the most common uses of the wind tower is to cool the inside of the dwelling; it is often used in

combination with courtyards and domes as an overall ventilation and heat-management strategy. It is

essentially a tall, capped tower with one face open at the top. This open side faces the prevailing wind,

thus "catching" it, and brings it down the tower into the heart of the building to maintain air flow, thus

cooling the building interior. It does not necessarily cool the air itself, but rather relies on the rate of

airflow to provide a cooling effect. Here, wind towers are connected to AHU (Air Handling Unit). Air

going to the AHU are naturally pre-cooled which reduces the burden on Air-Conditioners.

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Figure 10 Skylight

More than 90% of the area is covered by daylight which reduces the usage of artificial lights hence

saving electricity. North-Light phenomenon is used so that only light enters inside the building and

minimum amount of heat.

Whole building is well controlled by BMS (Building Management System) which is used for

automation of light. BMS is used to reduce the wastage of electricity.

Figure 11 Naturally Shaded Parking

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Unit-3 Site Selection and Planning

Site should be selected for the project considering the safety of occupants and should not disturb the

ecosystem. Project is located in the Hi-Tech City of Hyderabad and has all the basic amenities nearby.

Public Transport is very easily available at the distance of 100m from the location. Use of cycles and

battery operated vehicles (non-fossil fuel vehicles) is promoted and there is a battery charging facility

available at the site. A different parking is available for the people using cycles and battery operated

vehicles.

Soil Erosion Control and Preservation

Figure 12 Honeycomb trays

Honeycomb trays are placed in the areas where loose soil is present or there are more chance of soil

erosion. They traps the top layer of soil inside them preventing soil erosion and allowing them to be

covered by turf.

Top layer of soil was stacked and stored at the time of construction and was again used for the growth

of vegetation.

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Figure 13 Water diverted to sediment basins

Water is diverted to sediment basins to control the sedimentation and hence reduce erosion.

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Preservation and Transplantation of Trees

Figure 14 Natural Vegetation

Most of the natural vegetation was tried to preserve and many new species are now planted at the site.

There are more than 160 species of vegetation available on site. Use of native species is promoted as

they have more adaptability to the climate and have less water requirement.

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Heat Island Reduction

Figure 15 Grass Pavers

A heat island is an area that is significantly warmer than its surrounding areas due to human activities.

Heat Island effect is countered at site by using shades from trees, grass pavers, grid pavers and high

SRI tiles on roof and planting vegetation on roof.

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Universal Design This building caters very well to differently abled and senior citizens.

There is a preferred car park space, easy access to the main entrance of the building, the main walkways

have adequate width and separate washrooms for differently abled.

Figure 16 Ramp for easy access to the main entrance

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Unit-4 Energy Efficiency

Building Energy Consumption

Air-Conditoning, 57%

Area Lights, 22%

Miscelaneous Equipment, 16%

Ventilation Fans, 5%

BREAKUP OF ENERGY CONSUMPTION IN A BUILDING

Figure 17 Building Energy Consumption

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Energy Efficiency Measures Project is stuffed with energy efficient measures. Fly-ash bricks are used for construction instead of

clay bricks as they provide better insulation from heat than clay bricks. Roofs are insulated by planting

vegetation on it.

Wind tower considerably reduce the load on air conditioning system thus saving energy.

Figure 18 Wind Tower

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Figure 19 Glazing and High Performance Glass

Glazing is used on one side of roof and solar panels are installed on the other side depending upon the

orientation of the building. Around 20% of the total energy requirement of the project are met by onsite

solar power production.

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Figure 20 North Light Glazing

Glazing is used for the daylight and high performance glass is used to reduce the amount of heat transfer

inside the room.

Figure 21 Superfan

Traditional fans are replaced with remote operated superfan which claims to saves more than 50%

energy.

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Figure 22 Open space for daylight and high performance glass

Open space is provide between various sections of building for better views and daylight.

CFC free Air-Conditioners are fitted with sensors which maintain comfortable temperature inside the

regularly occupied spaces.

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Unit-5 Building Materials and Resources and Indoor Environmental

Quality Building materials and resources used in the construction and operation have a great impact on

the environmental conditions. The building is made up of fly-ash bricks and fly-ash cement

which is made up of industrial waste, i.e. fly-ash.

The roof lawn trays are made entirely of recycled plastic waste.

Instead of conventional ply or wood, this project uses a composite agro-board manufactured

from bagasse (Sugarcane waste)

Figure 23 Segregation of Waste and Artificial Composter

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The daily waste is segregated into five categories

Paper Waste

Food Waste

Plastic Waste

Metal Waste

Glass Waste

Food waste is artificially decomposed to make manure and all other types of waste are sent for

recycling.

Figure 24 Ceramic Tiles used for flooring

The ceramic tiles used for flooring have culets, broken tiles, Paper etc.

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Figure 25 Cladding

95% of the materials used in this project are harvested, extracted or manufactured within a

radius of 500 miles from the project site.

CO2 Monitoring sensors are installed in regularly occupied spacing so that maximum level of

CO2 is 530ppm in the premises.

Low VOC (Volatile Organic Compound) paint and adhesives are used inside the building.

There is access of outside view in every room.

(Flat = 5g/l and Non Flat = 10g/l)

Indoor Air Quality is regularly monitored.

Declared entire site as “Non-Smoking area”

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Unit-6 Water Conservation and Scope of Improvement

Water Distribution in world

Less than 1% water on earth can be used by humans which is free from salts and is clean. Survival

without water is impossible and it demands to be conserved.

Approach used to conserve water

Reduce – Reduce the consumption of water and wastage

Recycle – Recycle as much water as possible

Recharge – Recharge ground water for future purpose

Water bodies on the site are used for rain water harvesting. All the buildings and project is designed

to harvest most of the rain water. All the pipelines from the roof are well channelled to the rain

water harvesting pond.

Figure 26 Distribution of Global Water

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Figure 27 Rain Water Harvesting Pond

Efficient plumbing fixtures are used and water free urinals are installed.

Figure 28 Sprinkler System for turf

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Project has less than 10% total turf area. Turf area is kept less to reduce the water requirement.

Figure 29 Drip Irrigation system for the plants

Drip irrigation is used for the plants and sprinkler system is installed for the turf area.

Native species and drought tolerant species are preferred over foreign species as they are have more

adaptability to the environmental conditions and they require less amount of water for their growth. Soil

moisture sensors are installed which sense the moisture present in the soil and automatically shut-off

the water supply.

Waste water treatment and reuse 100% waste water is treated at the site using Phytoremediation technology. Phytoremediation is the

direct use of living green plants for in situ, or in place for removal, degradation, or containment of

contaminants in waste water. It can be used to treat any type of contaminant in environmental and

climatic conditions.

Working

A combination of selected species are grown near the septic tank made for storage of waste water.

Species used at the site -

1) Filtration Pond

a. Parakeet Flower

b. Alligator Flag

c. Papyrus

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2) Polishing Pond

a. Indian Shot

b. Powdery Thalia

c. Giant Taro

Water from the input tank is pumped to the roots of plants. Plants grows on a series of pebbles, gravels,

stones and rocks so that their roots can penetrate deep into the ground. A system of pipeline is laid

inside the layers through which the water is transferred. This plants treat the water which is then

transferred to polishing pond where different species grow. The output water is odour free and suitable

for flushing and irrigation purpose. Water is tested quarterly for proper monitoring.

Figure 30 Phytoremediation Plant

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-Scope of Improvement Various uses of water at site

Purpose Source

Kitchen (Dishwashing, drinking, tea/coffee)

Fresh Water

Landscaping Treated Water/Collected Rainwater

Restrooms

Fresh Water

Air-Conditioning System

Fresh Water

Cleaning Purpose

Fresh Water

Wind Tower Fresh Water

Rain Water Harvesting System:

Rain water harvesting pond is open to the external environment which causes a large amount of water

loss due to evaporation of water. Water loss can be reduced by covering the pond by a shade netting.

A shed will reduce temperature of water by 1°-2° Celsius which may reduce evaporation rate

considerably.

A filter system can be used, so that rain water collected, meets the water quality parameters required,

and can be pumped to water storage tank so that it can used for all purposes like air-conditioning

systems, flushing, cleaning and dishwashing.

Water Metering:

Only one meter, at inlet, is installed on site. Water meters can be installed at various distribution

points to maximize the scope of improvement of water efficiency.

More uses of phytoremediation treated water:

This treated water can be used for flushing purpose if pipelines are installed for the same.

Scheduled check for all plumbing fixtures:

A schedule can be made and all plumbing fixtures should be checked for leakage and cleaning of

aerators in faucets.

Reducing water for landscaping:

666 species are available on site out of which 80% are native species. This percentage can be further

increased for reducing water requirement.

Installing Dishwasher in kitchen:

A dishwasher can be installed in kitchen instead of conventional dishwashing. Dishwashers are much

more water efficient and effective, using nominal amount of energy.

Educational Signboards:

Educational signboards can be placed to make occupants more aware to reduce wastage of water.

Efficient Flushing System:

A dual flushing system can be installed in restrooms to considerably reduce the amount of

blackwater produced at site.

Waterless flushing systems are also available in the market nowadays.

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Types of Waterless Toilets

Traditional Out-House The well-known out-house is well known for smelling because it is

simply an anaerobic system that decays the material with non-oxygen-breathing organisms

such as leeches and flat worms, producing ammonia, methane, sulphur. The exposed faeces

encourages maggots and flies. The out-house system is now out-dated.

Chemical Toilets Portable toilets are merely a stop-gap or temporary solution for short-term

events. Portable toilets/chemical toilets simply collect the waste in small tanks that have a

substantial amount of liquid chemicals pre-loaded for the purpose of killing pathogens and

controlling odour. The tanks are then pumped and trucked away for disposal or drained into

septic systems or sewers. Variations of these are also used in RV’s, boats, trains and planes.

Foam Flush Foam-flush toilets use one cup of soapy foam to make the bowl slippery so the

waste slides down into a depository.

Vacuum-Flush Vacuum-Flush toilets use air to suck the waste through evacuated tubes into a

remote depository.

Composting Toilets are aerobic systems that collect human waste and turn it into humus.

Incinerating Toilets hot-burn the waste, reducing it to a fine ash without odor or polluting.

Evaporating Toilets dry out, sterilize and evaporate the waste.

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Made By-

Naman Sukhija

+91-9950222626

namansukhija@gmail.com

Intern (27 May 2015 – 10 July 2015) at Indian Green Building Council,

Hyderabad, Telangana, India, 500081

JK Lakshmipat University,

Jaipur, Rajasthan, India, 271861