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CASE STUDY ON GREEN
THE ENERGY RESEARCH INSTITUTE
BCIL’s TZED HOMES
M.Tech - Building Science & Technology
Dept. Of Civil Engineering
School of Engineering & Technology
LOCATION : 12.97o N 77.56 E
ALTITUDE : 920 M
GREEN COVER : 40%
CLIMATE : DRY TROPICAL
MEAN MAX MEAN MIN
35 C 20 C
28 C 14 C
INTRODUCTION OF TERI:
CONDUCTS ENERGY SERVICES FOR MAJOR CORPORATE’S
ESTABLISHED IN 1974.
PROJECT IS DESIGNED TO HOUSE AN OFFICE BLOCK WITH WORKSTATIONS AND A SMALL
GUEST HOUSE ATTATCHED TO IT.
CONCERNED WITH EFFECTIVE UTIIZATION OF ENERGY, SUSTAINABLE USES OF NATURAL
RESOURCES, LARGE SCALE ADOPTATION OF RENEWABLE ENERGY TECHNOLOGY.
BUILDING IS ORIENTED ALONG NE-SW DIRECTION.
SW IS THE PRIMARY WIND AND LIGHT DIRECTION FOR BANGALORE
.ALONG SW FACAD IS A FOUL SMELLING DRAIN. HENCE ENTRANCE IS TOWAARDS NE
ALL WINDOW OPENINGS ARE IN THIS DIRECTION
SOUTH WALL IS A DOUBLE WALL TO PROVIDE INSULATION FROM SOUTHERN SUN
BUILDING DETAILS :
BUILDING HAS BEEN DIVIDED INTO INDIVIDUAL AND COMMON AREAS
75 INTIMATE SMALL SPACES ARE PROVIDED FOR INDIVIDUAL WORK
COMMON AREAS REFER TO THE ATRIUMS, COURTS, NODES AND CORRIDORS MEANT FOR
photo voltaic cells are used to capture the suns energy thus
generating electrical energy for the various stations. These
photovoltaic cells have been arranged in line with the primary
orbit of the sun the panel are integrated with dynamic truss to
optimize the generation of energy.
the suns energy is further used in the form of
solar heaters which is used to generate all the
hot water in the guest house.
COOL BREEZE DOWN IN BY
SYSTEM TO EQUALISE
COOL BREEZE DOWN IN BY
SYSTEM TO EQUALISE
ventilation is enhanced by the use of solar
chimneys and vents.
allows breeze to flow over building.
creates negative pressure.
starts pulling fresh air flow at body level
to provide thermal comfort.
hot air rises towards the top on southern
Openings have been designed such that requirement
of artificial lighting is minimal throughout the day when
the building is under maximum usage.
By creating atrium spaces with skylights, the section
of the building is such that natural light enters into the
building, considerably reducing the dependence on
abundant natural light inside due to intelligently designed fenestrations.
By creating atrium spaces with skylights, sections of the Centre are designed in such a
way that natural daylight enters into the heart of the building, considerably reducing the
dependence on artificial lighting. This is supplemented by a skylight roof and energy-
efficient artificial lighting
As thermal capacity of earth is high, daily and annual
temperature fluctuations keep decreasing with increasing
depth of earth. At depth of 4m below ground,
temperature remains constant and equal to annual
Earth berm is created to retain
the central court houses an amphitheater that acts as an informal gathering. but more
importantly it holds within it the rainwater harvesting sump for the whole complex.
Roof top rain water
Rain water drainage to
An efficient rainwater harvesting system
preserves water to the maximum possible
extent. Water run-off from the roof and
from the paved area is collected and stored
in a collection sump below the
This water is used for landscaping & in
Indoor environmental quality enhancement
Indoor Environmental quality is very well achieved with the help of non Voc Paints and local
flooring material with less embodied energy.
Indoor air quality is very well maintained with effective technique and
Use of cavity wall in south to heat up the interior air.
Occupant comfort is achieved with
CONDUCTION & RADIATION as external agent
BODY HEAT & AIR FLOW as internal agent
Plants are being used in the interior common connecting spaces for refreshment and air
Proper maintenance is taken care in the interior to make an HYGNIC living
North ligating is provided for glare less lighting system and its made to be used in the workspace
Mixed use of vegetation is been used to make the campus green and fresh .
Solar Chimney plays an major role in maintain constant air flow in the interior
Ventilation plays a major role in creating comfort ness in the interior
BCIL’S Tzed Residential Campus
5 Acres of Land
15 Independent Homes
The project has been worked out towards achieving this
collective goal, by addressing the following six main areas.
Quality of air
Energy management through innovative interventions
• The master plan consists in two parallel four-floor buildings containing a
street for pedestrian and vehicles movements along it. The south-facing
buildings are segmented into blocks in order to provide maximum natural
light to the street and homes located in the second row of buildings. These
cavities called “e-zone” are treated as garden for recreation.
Tzed used building technologies and materials (like stone and mud)
that reduces carbon emission through savings on resources and
Incorporating fly ash blocks
Soil-stabilised blocks (External Walls)
Green Roof or Sky Garden
Rubber wood, Palm wood and Bamboo wood
Rain Water Harvesting
Solar Water Heaters
Grey Water Recycling
Centralized district refrigeration system and air conditioning
system using an ammonia-based chilling unit.
Intelligent lighting systems blend motion sensors, ambient
light sensors and timers
Black Water Sewage Treatment Plant.
Grey Water decentralized water treatment system.
Zone Treatment System
TZed is a campus that has no water supply connection from the outside.
There is no sewerage connection for this campus. All wastewater is treated and
reused for gardens in a way that such water eventually percolates into the open
wells and so completes the loop of use and generation.
This is India’s first centrally air-conditioned (with no CFC and HCFC) residential
The Capital savings of approx 20,000 tonnes of Carbon emissions.
The Revenue savings of approx 1500 tonnes of Carbon emissions.
Tzed consumes only 60 per cent of energy demand of a 100 houses anywhere else.
Residents pay 30 % less on power and 20 % less on monthly maintenance.
Every resident gains Rs. 12,000/- on an annual basis, thanks to carbon credit
savings in T-Zed.
Prestigious Ryutaro Hashimoto Award
CII conferred a special jury award
Platinum rating from Indian Green Building Council