NATIONAL INSTITUTE OF SOLAR ENERGY

Solar energy center is an institute developed by Ministry of New and Renewable Energy resources to showcase the R & D activities related to solar sciences.

1. SOLAR ENERGY
CENTRE

(OLD BUILDING)

2. INTRODUCTION

3. Solar energy center is an institute developed by Ministry of New and
Renewable Energy resources to showcase the R & D activities related to
solar sciences.

GWAL PAHARI, GURGAON,
HARYANA.
VINOD GUPTA, DELHI
COMPOSITE
TERI

4. « The centre is located at Gurgaon in
Haryana, around

. Bus to the site is
with rented vehicles
bone the alternative to reach the
centre from Delhi.

of the Solar Energy
Centre are available at fixed times
to reach the centre.

« Surrounding comprising of
with a
with most of the land

lying virgin.

FIG. ENERANCE APPROCH

: SITE SELECTION is

5. LOCATION &APPROACH

GREEN ARMY
I {1 Motorsports
onkomestims Tr
Mahadey Mandir Balola = TERIPrakı School, +:
2
Indian Où Petrol Púmp

National Institute
of Solar Energy

National Institute of Solar Energy o

SOLAR ENERGY CENTER, GURGAON, HARYANA

6. CLIMATE ANALYSIS

WIND DIRECTION 4)
< > <
During su mmers During winters
ANNUAL MEAN MONTHLY MEAN MAX TEMPEVER MIN TEMP
TEMP TEMP RECORDED EVER RECORDED
36°C 36-40 °C 45.5°C 2-3 °C

| =

~~ Summer March-June ~~

A A N
{ Hotandhumid Avg 36*c )
oo N Max .> 48*c in may ee
2 — = ST Ss
/ Spring FEBRAURY y Se / Monsoon June - sept\
Max. sunlight ) Combination of tropicalwetand / Annual rainfall
exposure dry climate- borders on a hot semi-\ Around900 mm. /

arid climate

WinterDec-jan Ne 7 Autum
\ October-nov /

14.7-28.6*c

SOLAR ENERGY CENTER, GURGAON, HARYANA

7. PARKING AND ACCESSABILITY

GRIHA criteia2, LOW-IMPACT DESIGN is partially followed

Emphasis of the Entrance by a projected
overhang/ Portico

Separation of Pedestrian and Vehicular
movement for easy circulation

60-70 % of employs generally use office
bus as a means of transport , because the
site is totally cut from any public
transport system.

Encourage building occupants to
minimize their reliance on fossil fuel-
based transportation.

The arrangement of parking in the
manner of first slot for cycle users

secondly for bike users and lastly for car
user.

The parking space for two wheeler is for
70-80 bikes and 35 - 40four wheelers.

SOLAR ENERGY CENTER, GURGAON , HARYANA

8. ZONING AND
PLANNING

9. Radiotedto Raglates

ABOUT SITE Fe by doves on
174 PW ie a A

+ The centre is located on a

gently sloping site covering

about 200 acres in a suburban —,—ie

setting. I moros tad tion

sae
| >

atmosphere:

Latert neat in
saver vapor

with summer temperatures reaching as
5 high as 47°C.

* Therefore, the major concern in the
region with respect to building design
is summer cooling, at the same time
winters are also quite harsh requiring
heating during the winter months.

+ The Solar Energy Centre
was completed in 1991 but
most of the facilities have
been put to use at a much

later stage.

SOLAR ENERGY CENTER, GURGAON , HARYANA

10. The Institute was set up with
a view to encourage research
in the field of solar
technology as a viable
alternate energy system.

At the same time the centre itself

is built taking into account
principles of passive solar
design to reduce energy
consumption in the building.

GRIHA criteia 3 : DESIGN TO MITIGATE UHIE is followed

This is achieved by

reducing heat gain in summer,
encouraging effective ventilation,
natural cooling

- effective insulation

.

SOLAR ENERGY CENTER, GURGAON, HARYANA

to prevent heat loss
duringthe winter

The Solar Energy Centre building is
designed to reflect the principles of
energy conservation and application of
solar heating and cooling concepts.

11. ABOUT SITE PLANNING

ENTRANCE

1. The main gate opens to a
long driveway with lush
greenery on both sides
creating emphasis to
entrance.

ata School +

2. The main building has
direct access from the
mainroad. "777 — Te oo 0

wo

But the entrance to it is Es
from the inside to ensure %
privacy and security

SOLAR ENERGY CENTER, GURGAON, HARYANA

12. The buildings in this complex have been divided
inlo three groups.

1. THE TECHNICAL AND ADMINISTRATION
BLOCK.

2. WORKSHOP BUILDING AND ELECTRICAL
SUB-STATION, ETC.

3. THE GUEST HOUSE.

Apart from the buildings the campus includes a
+50 KW SOLAR POWER PLANT,

+ BIOMASS PLANTATION

«LARGE OUTDOOR SPACE FOR TESTING SOLAR DEVICES.

14. ADMINISTRATIVE a SERVICE -
AND TECHNICAL | BLOCK + WORKSHOP

BLOCK

PROJECT DETAILS

Site Area: 200 acres

Build up area: 6943 sqm

15. + WORKSHOP BUILDING

GROUND FLOOR PLAN ELECTRIC SUBSTATION &
THE TECHNICAL THE GUEST HOUSE

ANDADMINISTRATIVE a
BLOCK 5 de
/

-cafeteria AT
-laboratories a}
-administratiof
-lesling areas \
solar stimulation \
section. \
TEST BEDS 7

/
/

| CORRIDOR SPACES
mi GREEN COURTYARD
BEE worksHoP

de WORKSOP Bl
SOLAR ENERGY

SOLAR ENERGY CENTER, GURGAON , HARYANA

16. SUSTAINABLE
FEATURES

17. CLIMATE RESPONSIVE DESIGN
SUMMER 2 Cooled air is retained and

circulated within the site and
prevented from escaping by
landscape on all sides

Warm breeze from
the South West gets

filtered and cooled
by the presence NAAA
lush greenery

SOLAR ENERGY CENTER, GURGAON, HARYANA

18. CLIMATE RESPONSIVE DESIGN

WINTER N Cooledbythe Harsh west heat filtered
presence of Greenery and partially blocked by
to the North the landscape and the

plantations in the west

Warm breeze that
picks Up heat from
the vast Expanse of
barren land in The
surroundings

SOLAR ENERGY CENTER, GURGAON , HARYANA

19. » The first building to be put up in
the Solar Energy Centre campus,
this has an earth shelter cooling
system.

Solar water heaters have been
integrated with the architectural
design.

Photovoltaic power plant of 4
KW capacity is being installed
on the terrace of the Guest

» House to ensure uninterrupted
power supply in addition to the
diesel generator back up.

20. GUEST HOUSE PLAN AND SECTIONS

A
| C
L made B
En 3
Le RS ES]
54 $323 >
i} jo! om a =
ue À
a (ET ©
«| RR y + |
= =
SECTION CC’
a ne

GUEST HOUSE
SOLAR ENERGY CENTRE, GURGAON

| | REPRESENTS HABITABLE
SPACE IN SECTION

SOLAR ENERGY CENTER, GURGAON , HARYANA

21. EARTH BERMING

-The southern slope facing the artificial
water body was chosen for the building . It
was white painted reflective finish on the
exterior and is mainly oriented at an angle of
20 degrees east of south.

-Earth shelter is the main cooling system and
the guest house is partially sunk into the
ground .

-The roof has a terrace garden , which is
watered during summers facilitating
evaporative cooling . A special section is used
fo ensure cross ventilation of cach guest
house

- Windows are provided with an arched
sunshade , which allows winter sun to
come in through the top of the glazing .
The windows are designed to reduce
infiltration of outside air.

: PRESERVE AND PROTECT LANDSCAPE DURING
CONSTRUCTION is

22. RENEWABLE ENERGY SYSTEM
SOLAR WATER HEATER

- Solar water heater integrating with architectural design have been integrated with toilet.
- A sunny terrace for solar cooking has been provided near the kitchen.
E = —-

source
2 Resource Emo
r
Receiver
Teron
Sa ie yes | \
3 À

Solar Field

Control System

Power System Fr

Conversion Storage

pi
Materials Structure Ants

Turbomahinery ermal Er
Thermal Engineering Materials
Structural ahs Cherry

GRIHA criteia 9 : RENEWABLE ENERGY UTILIZATION is followed
SOLAR ENERGY CENTER, GURGAON, HARYANA

23. Es: GROUND
"FLOOR PLAN.

FACILITY —

It consists of six

well furnished

| roomsof which
four rooms are
air conditioned

The guest house
has a neatly laid

AC dining hall.
The FACILITIES
available in the
lobby include a
4 cable TV, a
A eiRANGE \ ne E computer with
pa «i | internet
A LOUNGE * ‘The building is on the connection,
SCARETANER south slope, facing an news papers,
TRITCHEN oom Artificial water body magazines and a
9 COURTYARD and is oriented at 20° few indoor
south-cast. games.

SOLAR ENERGY CENTER, GURGAON, HARYANA

24. ‘A sunny terrace for solar
‘cooking has been provided
near kitchen.

Solar water heaters provided in

‘each toilet have boon integrated OOF GARDEN sour
with the architectural design. COOKERS
ES ‘COURTYARD CE

EARTH BER

SECTION A~A

SECTION AA’

« Winter heating is direct Has EEE SEEN
by sun lighting of the Whitefish AQU"
guest rooms. Each
window is provided
with an arched

‘The main cooling system Is that of an
Sarth-ehaker iy o, and guest rooms are
sunshade, which allows SECTION B-B Practically sunk into the ground.

winter sun to come
through the top part of
the glazing. celine a ducer a OOF CARDEN
+ The Guest House is a SN
MULTI LEVEL, partially

buried solar building

SECTION BB? San voir

N SECTION CC’
GRIHA criteia 11 . ACHIEVING INDOOR COMFORT REQUIREMENTS
(visual/thermal/acoustic) is followed

25. TECHNICAL BLOCK PLANNING

1
2
3
+
&
5
7
E
A
10.
n.
2
3
Me
15.
16.
m

ADMISTRATION

THESE COLOURS
SHOW THE
HABITABLE SPACES
TO WORKIN

ADMINISTRATION, TECHNICAL
de WORKSHOP BLOCKS
SOLAR ENERGY CENTRE

SOLAR ENERGY CENTER, GURGAON , HARYANA

26. SUSTAINABLE FEATURES

1. Special openable louvered shutters were designed for the eat and west

facing windows.

2. Aluminium windows were used in preference to steel windows as this
gives tighter fitting with lesser infiltration.

3. To provide day lighting in all the work areas and to ensure that no
artificial lights are being used during day time, all the deeper office rooms
have been provided with windows on two different sides.

4. The windows have been properly shaded to reduce glare from the sky.

| | REPRESENTS
HABITABLE SPACE

Sy LTS IN SECTION
a
Ir an an a N
EHRE

SECTION THROUGTICOURTYARD, ADMISTRATION AND TYPICAL BLOCK

GRIHA criteia 1

: ACHIEVING INDOOR COMFORT REQUIREMENTS
(visual/thermal/acoustic) is followed

SOLAR ENERGY CENTER, GURGAON , HARYANA

27. 5. All rooms have been provided with windows so that they will receive
sunlight for atleast half the day in winter.

6. The monsoon scason merits special consideration, as cvaporative cooling
does not work during this period. In these buildings, cross ventilation has
been provided in all rooms.

7. The entire building is day lif and no artificial lighting would be required
during normal working hours.

| | REPRESENTS HABITABLE
SPACE IN SECTION

SECTION TITROUGTI BUILDING BLOCK,

ADMISTRATION AND TECTINICAT. Seas ste A me ES
BLOCK ge

sa a A eT

GRIHA criteia 12 : MAINTAINING GOOD IAQ is followed

SOLAR ENERGY CENTER, GURGAON , HARYANA

28. GREEN DESIGN FEATURES

Passive solar design

Technical and administrative block

ROOF SURFACE
EY,

1ROOF AND Va ES Ror
WALL TREATMENT. wagte à =

ee ms =

TEST 1

-The double storied

(6) SECTION OF ADMINISTRATIVE
research center is AND ESTIMER. BLO
located In suburban settlement measuring 200 acres.
Site constrains being minimal the architect was given THE FREEDOM TO
FORM .

~The building was conceived as a low spread out structures arranged around courtyards
MAXIMIZING THE USE OF ROOF SURFACE EVAPORATIVE COOLING WITH
AUTOMATIC CONTROLS.

-For comfort cooling , the strategy uscd was to reduce ingress of heat BY USING
HOLLOW , CONCRETE BLOCK WALLS , PROPERLY SHADED WINDOWS AND A
REFLECTIVE FINISH ON THE ROOF SURFACE

GRIHA criteia 3. DESIGN TO MITIGATE UHIE is followed

SOLAR ENERGY CENTER, GURGAON , HARYANA

29. WINDOWS FOR DAY
LIGHTING.

This is a group of which is
primarily used during the
day time only. The daylight
design strategies are as
follows :

-Special designed

- The windows were

- During monsoon season
proper ventilation is provide
through these windows.

SOLAR ENERGY CENTER, GURGAON, HARYANA

30. MATERIALS

31. Chairs of the Audi

Crosssection through
wall panelling

Gypsum board for
insulation in mini
audi.

Solar air conditioning
unit for research
purpose

Comfortable Tread for
movement

i

Wooden tiles on
ramp slope

: USE OF LOW-ENVIRONMENTAL IMPACT
MATERIALS IN BUILDING INTERIORs is

32. THE TECHNICAL AND
ADMINISTRATION BLOCK
MATERIAL

* Material used in building which is eco
friendly

* For comfort cooling, the strategy used was to
reduce ingress of heat by using

¥ The windows are protected by means

that are
meticulously designed so that at no time of the
summer day does direct sunlight enter into the
building.

East and west facing windows incorporate

were used in
preference to steel windows as this gives
tighter fitting with

provide tighter fitting joints reducing
infiltration heat gain.
SOLAR ENERGY CENTER, GURGAON , HARYANA

33. PERFORMANCE OF THE BUILDING:
The Solar Energy Centre os
conducted a post-occupancy

evaluation of this building

It was observed that the roof E { een
surface evaporative cooling ae | e
(RSEC) system caused a lowering, 7 : ae
of temperature by 2-3°C in
comparison with rooms without
RSEC system.

—WATER SPRINKLER

ON ROOF COOLS INSIDE

3e

Heat How to atmosphere

ow to city ar

f

v
Heat flow Into
building

building

Cool your building. Cool your city. Cool our planet.
FIG.-In BLACK AND WHITE ROOF and DAY AND NIGHT

SESSA
One advantage of the RSEC system is that it cools in a healthy manner as it
does not humidify the ambient air of the room.

On the other hand if a DESERT COOLER were to be used, it would pump moist
air inside the room and increase the humidity, which would cause discomfort
and affect the health of occupants.

GRIHA criteia 31 : INNOVATION is followed

34. 38.0

36.0

34.0

32.0

Temperature
(°C)

30.0

28.0

10:30 11:30 12:30 13:30 14:30 15:30 16:30
Time (h)
July 2nd, 1997

—+— AO. Room
—#— Verandah

—— Reception
Room

Comparison of indoor temperatures — Solar Energy Centre, Gurgaon
FiG shows the comparison of measured temperatures of the reception
room (with RSEC system) with those of A.O. room and verandah, both
being without RSEC system.
GRIHA criteia 8 : The project EPI (determined through

simulations) is followed

35. » ROOF SURFACE

y The building was conceived as a low spread
out structure, arranged around courtyards,
maximising the use of roof surface for
EVAPORATIVE COOLING SYSTEM with
automatic controls.

Y” Reflective finish on the roof surface in the
form of CHINA MOSAIC. (prevent heat
gain through the roof) given lo the top of
the terrace.

vy A ROOF COOLING SYSTEM has been
employed in the form of a water spray
which is used to wet coir mats placed on
the roof which in turn leads to natural

evaporative cooling. RODF SURFACE
COOLING SYSTEM
ON VAULTED ROOF

VERANDAH

DAYLIGHTING

36. Y The roof was designed as terrace garden but
this
has now been removed due
to problems of water seepage

v The roofs are designed as SHALLOW
CONCRETE
VAULTS to facilitate drainage of water.

The texture used on the wall is roughcast not
entircly for acsthetic purposcs as it also
provides a degree of shading to the wall surface
thus reducing heat gain.

Earth shelter is the main cooling system and
the guest housc is partially sunk into the
ground .

The building was conceived as a low spread out
structure , arranged around COURTYARDS ,
MAXIMIZING THE USE OF ROOF SURFACE
FOR EVAPORATIVE COOLING -
SOLAR ENERGY CENTER, GURGAON, HARYANA

37. The composition of
the centre comes
across as very
homogeneous even
at the risk of
becoming too
monotonous, due to
the compact nature
of planning and the
repetitive use of
typical arched
sunshades and
recessed windows. \

The buildings ar
painted in ligh
reflective shades
relieved by the use
of darker colors to
break the monotony.

38. Y For comfort during the milder months of
summer, cross-ventilation is provided in all
rooms.

The , one
located at normal height and the other just
below the ceiling vault. The windows

provide ventilation and vicw, and some day-
lighting close to the window. The
windows ensure day-lighting deep inside the
workspace in the event of subsequent erection of
internal partitions.

The use of green in the form of courtyards
contrasts well with the

(walls to resist heat gain by conduction)
-Grit finish has been used over the hollow
blocks wall.
has been done with kotta stone .
GRIHA criteia 19 , Utilization of BIS recommended
waste materials in building structure is followed

39. IN THE GUEST HOUSE BUILDING,
MATERIAL

> the walls are finished in roughcast plaster
which provides a degree of shading to the
exposed wall surfaces.

> White finish has to be given to the exterior
wall for maximizing reflection.

>The interior of the structure has been
provide with an emulsion paint with ceramic
tiles in flooring.

> The roof has been provided with the terrace J
garden.

>The southern slope facing the artificial water
body was chosen for the building . It was!
white painted reflective finish on the exterior
and is mainly oriented at an angle of 20
degrees cast of south

40. THE WORKSHOP

building has an interesting system of day lighting. ¿

Ihe building has a stepped cross-section with a
reflective finish on the roof surfaces

Daylight is reflected from the lower roofs into the building providing glare-
free lighting. Ihe drawing offices have deep recesses for shading with baffles
to cut out the glare.

SECTION THROUGH MEZZANINE FLOOR OF WORKSHOP BLOCK
SOLAR ENERGY CENTER, GURGAON, HARYANA.

41. Active systems like solar water heating arc also cmployed with solar water
heaters provided in each toilet, integrated with the design.

Back-up electric heaters are provided in individual toilets rather than as a
heating element in the water storage tank itself as it is quite wasteful.

The system has, however been modified now duc to maintenance problems.

A sunny terrace for solar cooking has also been provided near the kitchen.

At the same time toilets have been placed in visible location to facilitate
monitoring and maintenance.

TYPICAL SECTION OF WORKSHOP BLOCK

SOLAR ENERGY CENTER, GURGAON , HARYANA

42. LANDSCAPING
FEATURES

43. + » Landscaping is an important
element in altering the
microclimate of a place.

» Proper landscaping reduces direct
sun from striking and heafing up
of building surfaces.

a ce era EH ez

» It prevents le light carrying heat into a building from the ground
or other surfaces.

» Landscaping creates different airflow patterns and can be used to direct
or divert the wind advantageously by causing a pressure difference.

» Additionally, the shade created by trees and the effect of grass and shrubs
reduce air temperatures adjoining the building and provide evaporative

cooling.
SOLAR ENERGY CENTER, GURGAON , HARYANA

44. SITE PLANNING AND LANDSCAPE

LEGEND
1. ACUNSIRANCH
2 Ls

ENE PE ROO

ADMINISTRATION, TEC
de WORKSHOP BL
SOLAR ENERGY

+ COURTYARD PLANNING

GRIHA criteia2. LOW-IMPACT DESIGN is followed
SOLAR ENERGY CENTER, GURGAON , HARYANA

CAL

45. EVAPORATIVE COOLING by
providing water element in
centre to create micro climate.
NATIVEPLANTS

46. a

USE OF ISCAPING” TO MINIMISE,
MAINTENANCE AND REDUCE WATER

47. USE OF NATIVE PLANTS AND CATCH BASINS
TO CATH THE RAIN WATER

2 O >
RETAINING OF LEVELSOF SITE ANOTHER COURTYARD TO CREATE MICRO-CLIMATE

: REDUCING LANDSCAPE WATER DEMAND is
by using native plants

48. GREEN SPACES ARE DESIGNED IN HIERARCHY

« The use of green in the form of contrasts well with the earth
colors used in the main building.

+ Central common q

» The building has been conceived as a

Evaporative cooling-

To cnhance the process of
evaporation, water bodies
were used which mixed the
moisture to the air and
increascd the humidity.

XS = eel >
Water body/channel at the center of the cou
SOLAR ENERGY CENTER, GURGAON , HARYANA

49. ROOF SURFACE
EVAPORATIVE
COOLING SYSTEM
ON VAULTED ROOF

(a) SECTION OF ADMINISTRATIVE
AND TECHNICAL BLOCK

+ Due to incident solar radiation in a
courtyard, the air gets warmer and
rises.

+ Cool air from the ground level
flows through the openings of
room surrounding a courtyard,
thus producing air flow.

(b) PLAN OF
COMINSTRATIVE BLOCK SOLAR ENERGY CENTER, GURGAON, HARYANA

50. Sufficient supply of water is fulfilled
by bore wells within the site.

It has been provided with an
electrical substation with 25 KVA

generator in case of power failure.

Adequate street lighting is provided al
each place .

The whole site contains native trees.

51. THANK YOU...