The document summarizes the green building features of TERI's campus in Bangalore. The campus utilizes passive design principles to maximize natural lighting, ventilation and minimize energy usage. Key features include an optimized building orientation, ample fenestrations for cross ventilation, skylights, green roofs, solar panels, rainwater harvesting and use of local sustainable materials. Passive design strategies like earth air tunnels help regulate indoor temperature passively.
Green Building Case Study on TERI,bangalore.Vinay M
This presentation basically encompasses the green practices which are followed or incorporated in the structure to attain the platinum rating systems and posses the sustainable features that way..!!
TERI -BANGLORE_Case study
this case study is prepared for my studio project _sustainable corporate office . we did a study tour at TERI for a day and report is made in accordance with the goals of sustainable (12 point's )
hello! find the details about composite climate and aurabindo ashramam here. If u want best architecture and interior services, click on https://jakkan.com/ and contact them. They give best services.
Green Building Case Study on TERI,bangalore.Vinay M
This presentation basically encompasses the green practices which are followed or incorporated in the structure to attain the platinum rating systems and posses the sustainable features that way..!!
TERI -BANGLORE_Case study
this case study is prepared for my studio project _sustainable corporate office . we did a study tour at TERI for a day and report is made in accordance with the goals of sustainable (12 point's )
hello! find the details about composite climate and aurabindo ashramam here. If u want best architecture and interior services, click on https://jakkan.com/ and contact them. They give best services.
Passive solar design is an important feature in the design of this building.The planning and orientation of spaces and building blocks ensures glare free daylight in all regularly occupied spaces. All the linear blocks are oriented in the East-West direction with shorter facades facing the sun.
Most of the south west facing walls are kept blank in order to protect the building from the harsh south west solar radiations. Where the south west walls have openings, they are protected by means of pergolas or projecting balconies. The east, west and south facades of the building have minimum glazing.
Auroville, City of dawn is located in state of Tamil Nadu, India, near Pondicherry in South India. .Auroville was founded as a project on experimental basis of the ‘Sri Arbindo Society’ on Wednesday 28 February 1968. The basic idea originated from Mirra Alfassa ‘The Mother ‘who was spiritually related to India.
Ma envisaged Auroville as an international township for 50,000 residents on the shape of a flower. Architect Roger Anger refined the planning and designed it in shape of Universe.He placed Matrimandir at the center of this city.
Mary Alfassa in her first message regarding the town stated that, "Auroville is meant to be a universal town where men and women of al countries are able to live in peace and progressive harmony, above all creeds, all politics and all nationalities”
.
buildings rated by GRIHA and LEED, sustainable buildings around the wold, gre...DhvaniR2
nearly 10 building of India which are rated for green buildings in India by GRIHA and LEED India,
there is 10-10 buildings which are rated by GRIHA and LEED
there is detailed information of each buildings
inforamtion are in form of:
location,
master plans,
sustainavle factors,
unit plans, sections
construction diagrams
sustainable and green factors diagram which effect the building as a elements
Center of environmental science & engineering building IIT, Kanpur
Indian institute of management, Kozhikode
VVIP Circuit house, Pune
IIT, Kanpur
Titan new corporation building, Bangalore
Indira paryavaran bhavan
Teri building, Bangalore
this all are griha rated buildings
Infinity benchmark, Kolkata
CII, Hyderabad
DPR construction phoenix regional office, Arizona
Infosys limited, Mysore
this are the buildings of leed
This is an Architectural case study on the Centre for Environment Planning & Technology (CEPT) building. Situated in Ahmedabad, Gujarat. This is done by an architecture student in semester 5.
Architecture case study - IIM AhemdabadOnal Kothari
The campus of IIM-Ahmedabad is not only an institution of learning but also a place for everyone to see. That is why; the institute draws the attention of both the students as well as common man. The campus of IIM Ahmedabad is spread over 67 acres of land. The building design of institute was created by noted architect Louis Kahn a famous American architect known for his majestic architectural designs.
Passive solar design is an important feature in the design of this building.The planning and orientation of spaces and building blocks ensures glare free daylight in all regularly occupied spaces. All the linear blocks are oriented in the East-West direction with shorter facades facing the sun.
Most of the south west facing walls are kept blank in order to protect the building from the harsh south west solar radiations. Where the south west walls have openings, they are protected by means of pergolas or projecting balconies. The east, west and south facades of the building have minimum glazing.
Auroville, City of dawn is located in state of Tamil Nadu, India, near Pondicherry in South India. .Auroville was founded as a project on experimental basis of the ‘Sri Arbindo Society’ on Wednesday 28 February 1968. The basic idea originated from Mirra Alfassa ‘The Mother ‘who was spiritually related to India.
Ma envisaged Auroville as an international township for 50,000 residents on the shape of a flower. Architect Roger Anger refined the planning and designed it in shape of Universe.He placed Matrimandir at the center of this city.
Mary Alfassa in her first message regarding the town stated that, "Auroville is meant to be a universal town where men and women of al countries are able to live in peace and progressive harmony, above all creeds, all politics and all nationalities”
.
buildings rated by GRIHA and LEED, sustainable buildings around the wold, gre...DhvaniR2
nearly 10 building of India which are rated for green buildings in India by GRIHA and LEED India,
there is 10-10 buildings which are rated by GRIHA and LEED
there is detailed information of each buildings
inforamtion are in form of:
location,
master plans,
sustainavle factors,
unit plans, sections
construction diagrams
sustainable and green factors diagram which effect the building as a elements
Center of environmental science & engineering building IIT, Kanpur
Indian institute of management, Kozhikode
VVIP Circuit house, Pune
IIT, Kanpur
Titan new corporation building, Bangalore
Indira paryavaran bhavan
Teri building, Bangalore
this all are griha rated buildings
Infinity benchmark, Kolkata
CII, Hyderabad
DPR construction phoenix regional office, Arizona
Infosys limited, Mysore
this are the buildings of leed
This is an Architectural case study on the Centre for Environment Planning & Technology (CEPT) building. Situated in Ahmedabad, Gujarat. This is done by an architecture student in semester 5.
Architecture case study - IIM AhemdabadOnal Kothari
The campus of IIM-Ahmedabad is not only an institution of learning but also a place for everyone to see. That is why; the institute draws the attention of both the students as well as common man. The campus of IIM Ahmedabad is spread over 67 acres of land. The building design of institute was created by noted architect Louis Kahn a famous American architect known for his majestic architectural designs.
Baker studied architecture in Birmingham and graduated in 1937, aged 20, in a period of political unrest for Europe.During the Second World War, he served in the Friends Ambulance Unit in China and Burma.He worked as an architect for an international and interdenominational Mission dedicated to the care of those suffering from leprosy. He focused on converting or replacing asylums once used to house the ostracized sufferers of the disease - "lepers".He Used indigenous architecture and methods of these places as means to deal with his once daunting problems.
Baker's designs invariably have traditional Indian sloping roofs and terracotta Mangalore tile shingling with gables and vents allowing rising hot air to escape curved walls to enclose more volume at lower material cost than straight walls.Designing and building low cost, high quality, beautiful homes
Suited to or built for lower-middle to lower class clients.
Irregular, pyramid-like structures on roofs, with one side left open and tilting into the wind.Brick jali walls, a perforated brick screen which utilises natural air movement to cool the home's interior and create intricate patterns of light and shadow.
GREEN BUILDINGS
Uses less energy, water, natural resources
Generates less waste
Healthier for people living in it
Energy saved= 30-40% per day
Enhanced indoor air quality, light and ventilation
Potable water saving upto 20-30%
High productivity of occupants
Minimum generation of non-degradable waste
Lower operating costs and increase asset value
The presentation orients towards a energy efficient designs and sustainable development strategies in a building, TERI institute has been taken as a case study for appropriate demonstration on how these design works to become an energy efficient building.
Menara Mesiniaga is located on a major highway from the airport to Kuala Lampur. It is in a highly visible location
with few buildings within the surrounding context.Subang Jaya is near Kuala Lumpur in Malaysia. The climate is considered tropical. The year round temperature, heat and humidity are fairly similar throughout the year. The Menara Mesiniaga is a built work that utilizes a basis of traditional Malaysian building
models and their transition or evolution into modern principles.
Sustainable Energy Resource Buildings: Some Relevant Feautures for Built Envi...IJERA Editor
Energy has become a critical issue in national and global economic development. Its crucial importance to the nation’s building makes the development of energy resources one of the leading agenda of the present democratic government of Nigeria, towards lifting the nation to the comity of twenty (20) nations with the fastest growing economy in 2020. In achieving this, the building industry and in particular the architectural profession has a leading role to play in adopting education, designs, materials, and technology capable of reducing energy consumption in building within tropic region. This paper, therefore, appraises the important features of energy performance building through the use of sustainable innovative materials and technology that respond to climate condition while being environmentally friendly.
Sustainable site selection and development. Simple passive design considerations involving site
conditions, building orientation, plan form and building envelope for sun and wind.
Passive heating of buildings- direct, indirect and isolated gain.
Passive cooling of buildings – shading of buildings, insulation, induced ventilation (air vents, wind
tower, etc.,), radiative cooling, evaporative cooling, earth coupling, dessicant cooling.
Green Architecture also known as “sustainable architecture” and “green building” is an approach to architectural design which emphasizes the place of the buildings with both local ecosystems & global environment.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Instructions for Submissions thorugh G- Classroom.pptx
Teri, bangalore & solar passive techniques(rupesh)
1. GREEN BUILDING REPORT
THE ENERGY AND RESOURCES INSTITUTE(TERI), BANGALORE
PRESENTED BY:
RUPESH CHAURASIA (882646)
B. ARCH. 9TH SEM.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 1
2. TERI campus at Bangalore
Introduction
The Energy and Resources Institute, Bangalore is among South India’s first
energy-efficient and environmentally sustainable campuses. It houses work
spaces for the staff, conference rooms, a library, a laboratory and a guest house.
Dining and recreation facilities are shared between the offices and the guest
house. It has the potential to serve as a model for future development in similar
geographical and climatic conditions.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 2
3. P R O J E C T D E TA I L …
NAME OF PROJECT THE ENERGY AND RESOURCES
INSTITUTE(TERI),
SOUTHERN REGIONAL CENTRE, BANGALORE
CLIENT TERI
ARCHITECT Ar. Sanjay Mohe
CLIMATE Moderate
COMPLETION YEAR 1990
TYPE OF BUILDING Institutional
TOTAL NO. OF FLOORS G+2
BUILT-UP-AREA 26,663 Sq.Ft
THE DESIGN DISPLAYS A DEXTEROUS INTERPLAY OF FIVE BASIC NATURAL
ELEMENTS – SUN, AIR, EARTH, WATER AND SKY – WITH THE BUILT
FORM, TO MEET THE REQUIREMENT OF THERMAL, VISUAL AND AURAL
COMFORT.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 3
4. Schematic layout of TERI Bangalore showing the surrounding roads
and the drain.
Location, Orientation & Climate
The site is located at Domlur, about 3 km from the Bangalore airport.
It is a long and narrow site with roads on the eastern and northern sides, the former
being the major road.
The western side has an open ground and on the southern side is an open drain
about 9 m wide.
The buildings are aligned along the east-west axis and entry into the site is from the
road on the northern side which is relatively less busier.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 4
5. The office blocks are placed towards the main road while the guest house is located
on the quieter west side.
The office block is kept towards the east, close to the main road for high visibility and
the guest house is located towards the quieter western side.
In a moderate climatic zone like Bangalore where temperatures are not very high, a
good ventilation system can easily provide comfortable living conditions.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 5
7. Open drain on the southern edge of TERI Bangalore
Natural Features
Positives and Negatives:
The drain on the southern side is a major feature which influences the design.
Wind coming from the south over the drain brings in the foul smell into the site.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 7
8. Architectural Design
This energy - efficient complex is designed to provide all round comfort for the users.
The building opens to the north to take maximum advantage of glare-free light.
Continuations of skylight spaces carry natural light into the building
Abundant natural light is available in the work spaces.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 8
9. Adequate natural lighting and ventilation is provided through an optimized
combination of solar passive design, energy-efficient equipment, renewable sources
of energy and materials with low embodied energy.
The condition of the drain is proposed to be improved into a pleasant landscaped
element by using plants that absorb impurities as well as with the help of basic
filtration and aeration. This being an ideal long-term solution would be a major civic
project.
The architecture responds to the present site conditions but the building can
eventually open up towards the drain when it turns clean.
A fresh environment is maintained inside the building
THE ENERGY AND RESOURCES INSTITUTE(TERI) 9
10. A cavity wall on the southern side insulates the building from solar heat gain.
The ground disturbed due to the building is replaced on the rooftop to form terrace
gardens at various levels. These gardens along with earth berms provides good
heat insulation and moderates fluctuations in temperature.
Locally available ‘kadappa’ Trombe walls help in insulating
stone used to clad the the hostels
southern wall
Materials & Appliances
As use of local materials reduces the energy consumed in their transportation, local
materials and materials with low-embodied energy have been used wherever possible
The southern wall, for instance, is clad in local ‘kadappa’ stone.
Energy-efficient lighting devices like CFL lights have also been used.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 10
12. TERRACE GARDEN DETAILED SECTION
Rooftop gardens are also beneficial in reducing rain run off. A roof garden can delay
run off; reduce the rate and volume of run off.
Plants have the ability to reduce the overall heat absorption of the building which
then reduces energy consumption.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 12
13. Daylighting
Openings have been designed such that requirement of artificial lighting is minimal
throughout the day when the building is under maximum usage.
Abundant natural light inside due to intelligently designed
fenestrations
By creating atrium spaces with skylights, the section of the building is such that
natural light enters into the interiors of the building, considerably reducing the
dependence on artificial lighting.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 13
14. Section showing natural light penetrating deep into the building through
skylights and fenestrations.
Ventilation
A blank wall towards the south (facing the drain) allows the breeze to flow over the
building. This creates a negative pressure which pulls fresh air from the north into the
building.
The sections are designed such that hot air rises to the top and make the building
breathe.
Air in the cavity in the south wall on the south creates negative pressure, thereby
enhancing the convection currents in the building.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 14
15. UNHYGENIC
FOUL BREEZE
FLOWING FROM
SOUTH
COOL BREEZE DOWN IN BY
CONVECTIONAL CURRENT
SYSTEM TO EQUALISE
PRESSURE
ON THE SOUTH IS AN ABSORPTIVE DOUBLE WALL WITH A CAVITY, WHICH
1. PROVIDES INSULATION FROM THE SOUTHERN SUN &
2. HEATS UP THE AIR WITHIN ENERGY AND RESOURCES INSTITUTE(TERI)
THE 15
17. Renewable Energy
A 5-kW peak solar photovoltaic system integrated with the roof skylights provides
day-light and also generates electricity.
Solar water heaters which meet the
Solar Photovoltaic integrated with the hot-water requirements of the
roof provide natural light and campus
electricity
A solar water heating system meets the hot water requirements of the kitchen and
the guest rooms.
Other energy conservation systems include an effective waste and water management
system, a centralized uninterrupted power supply, and a kitchen that reduces internal
heat.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 17
18. WATER MANAGEMENT
An efficient rainwater harvesting system preserves water to the maximum possible
extent.
Water run-off from the roofs and from the paved area is collected and stored in a
collection sump below the Amphitheatre.
This water is used for various purposes including landscaping and flushing toilets.
Schematic section of the building showing the rain water harvesting system
THE ENERGY AND RESOURCES INSTITUTE(TERI) 18
19. POST CONSTRUCTION
The monthly energy consumption is about Rs. 30,000 for the entire complex.
This works out to be around Rs. 1.12 per square foot which is about one-tenth of
a conventional building with air conditioning in Bangalore, thus proving the
energy-efficiency of the complex.
As and when the drain to the south gets cleaned, the complex can also open out
towards it. This would provide the complex with its own water-front.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 19
20. PASSIVE DESIGN,….WHAT IS A PASSIVE DESIGN…?
Passive design refers to a design approach that uses natural elements
often sunlight to heat, cool or light a building. Passive solar or passive
cooling designs take advantage of the sun’s energy to maximise heating or
cooling based on a building’s sun exposure. Systems that employ passive
design require very little maintenance and reduce a building energy
construction by minimizing or eliminating mechanical systems used to
regulate indoor temperature.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 20
21. PASSIVE COOLING
Passive cooling systems are least expensive means of cooling a home
which maximizes the efficiency of the building envelope without any use of
mechanical devices.
It rely on natural heat-sinks to remove heat from the building. They derive
cooling directly from evaporation, convection, and radiation without using
any intermediate electrical devices.
All passive cooling strategies rely on daily changes in temperature and
relative humidity.
The applicability of each system depends on the climatic conditions.
These design strategies reduce heat gains to internal spaces.
- Natural Ventilation - Earth Air Tunnels
- Shading - Evaporative Cooling
- Wind Towers - Passive Down Draught Cooling
- Courtyard Effect - Roof Sprays
THE ENERGY AND RESOURCES INSTITUTE(TERI) 21
22. NATURAL VENTILATION
Outdoor breezes create air movement through the house interior by the
'push-pull' effect of positive air pressure on the windward side and negative
pressure (suction) on the leeward side.
In order to have a good natural ventilation, openings must be placed at
opposite pressure zones.
Also, designers often choose to enhance natural ventilation using tall
spaces called stacks in buildings.
With openings near the top of stacks, warm air can escape whereas cooler
air enters the building from openings near the ground.
The windows, play a dominant role in inducing indoor ventilation due to
wind forces.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 22
23. SHADING
Solar control is a critical requirement for both cooling-load dominated and
passively solar-heated buildings.
The most effective method of cooling a building is to shade windows, walls
and roof of building from direct solar radiation.
Heavily insulated walls and roofs need less shading.
Can use overhangs on outside facade of the building.
Each project should be evaluated depending on its
relative cooling needs:
Extend the overhang beyond the sides of the window to
prevent solar gain from the side.
Use slatted or louvered shades to allow more daylight
to enter, while shading windows from direct sunlight.
Reduce solar heat gain by recessing windows into the
wall. THE ENERGY AND RESOURCES INSTITUTE(TERI) 23
24. WIND TOWER
In a wind tower, the hot air enters the tower through the openings in the tower,
gets cooled, and thus becomes heavier and sinks down.
The inlet and outlet of rooms induce cool air movement.
In the presence of wind, air is cooled more effectively and flows faster down
the tower and into the living area.
After a whole day of air exchanges, the tower becomes warm in the evenings.
During the night, cooler ambient air comes in contact with the bottom of the
tower through the rooms.
The tower walls absorb heat during daytime and release it at night, warming
the cool night air in the tower.
Warm air moves up, creating an upward draft, and draws cool night air
through the doors and windows into the building.
The system works effectively in hot and dry climates where fluctuations are
high.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 24
25. A wind tower works well for individual units not for multi-storeyed apartments.
In dense urban areas, the wind tower has to be long enough to be able to catch
enough air.
Also protection from driving rain is difficult.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 25
26. COURTYARD EFFECT
Due to incident solar radiation in a courtyard, the air gets warmer and
rises.
Cool air from the ground level flows through the louvered openings of
rooms surrounding a courtyard, thus producing air flow.
At night, the warm roof surfaces get cooled by convection and radiation.
If this heat exchange reduces roof surface temperature to wet bulb
temperature of air, condensation of atmospheric moisture occurs on the
roof and the gain due to condensation limits further cooling.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 26
27. If the roof surfaces are sloped towards the internal courtyard, the cooled air
sinks into the court and enters the living space through low-level openings,
gets warmed up, and leaves the room through higher-level openings.
However, care should be taken that the courtyard does not receive intense
solar radiation, which would lead to conduction and radiation heat gains into
the building.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 27
28. THERMAL CHIMNEY
The thermal chimney is used to create updrafts and remove heated air. It is built
on the sunny side of the building. A black metal heat absorbing panel is used to
create even more heated air that will naturally rise. This pulls the air up and out.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 28
29. EARTH AIR TUNNELS (EAT)
Daily and annual temperature fluctuations decrease with the increase in depth
below the ground surface.
At a depth of about 4 m below ground, the temperature inside the earth remains
nearly constant round the year and is nearly equal to the annual average
temperature of the place.
A tunnel in the form of a pipe or otherwise embedded at a depth of about 4 m
below the ground will acquire the same temperature as the surrounding earth at
its surface.
Therefore, the ambient air ventilated through this tunnel will get cooled
in summer and warmed in winter and this air can be used for cooling in
summer and heating in winter.
This technique has been used in the composite climate of Gurgaon in
RETREAT building.
Two blowers installed in the tunnels speed up the process.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 29
30. The living quarters (the south block of RETREAT) are maintained at
comfortable temperatures (approx. 20-30 degree Celsius) round the year by
the earth air tunnel system, supplemented, when-ever required, with a system
of absorption chillers powered by liquefied natural gas during monsoons and
with an air washer during dry summer.
However, the cooler air underground needs to be circulated in the living space.
Each room in the south block has a 'solar chimney; warm air rises and
escapes through the chimney, which creates an air current for the cooler air
from the underground tunnels to replace the warm air.
The same mechanism supplies warm air from the tunnel during winter.
THE ENERGY AND RESOURCES INSTITUTE(TERI) 30
31. EVAPORATIVE COOLING
Evaporative cooling lowers indoor air temperature by evaporating water.
It is effective in hot and dry climate where the atmospheric humidity is low.
In evaporative cooling, the sensible heat of air is used to evaporate water,
thereby cooling the air, which, in turn, cools the living space of the building.
Increase in contact between water and air increases the rate of evaporation.
The presence of a water body such as a pond, lake, and sea near the building
or a fountain in a courtyard can provide a cooling effect.
The most commonly used
system is a desert cooler,
which comprises water,
evaporative pads, a fan, and
pump.
1. Ground cover
2. Water sprinkler
3. Insulated roof
4. Shading trees
5. Water trough
THE ENERGY AND RESOURCES INSTITUTE(TERI) 31
A TYPICAL SECTION SHOWING PASSIVE SOLAR FEATURES OF WALMI BUILDING,BHOPAL
32. SOURCES
TERI, SOUTHERN REGIONAL CAMPUS.
http://builditbackgreen.org/bushfires/interactive-green-building-guide.aspx
http://www.sustainable-
buildings.org/index.php?option=com_cstudy&task=cstudies&submit1=GO&v=a
http://www.consumerenergycenter.org/home/construction/solardesign/index.
html
http://ncict.net/Examples/Examples1.aspx
THE ENERGY AND RESOURCES INSTITUTE(TERI) 32