INDIRA PARYAVARAN BHAWAN Jor Bagh , New Delhi

By-ANCHAL ANGAD

KARUNA MEGHA

SUNIL SRAVANTI

INTRODUCTION: • THIS IS A PROJECT OF MINISTRY OF

ENVIRONMENT AND FORESTS FOR CONSTRUCTION OF NEW OFFICE BUILDING AT NEW DELHI.

• THE BASIC DESIGN CONCEPT OF THE PROJECT IS TO MAKE THE NET ZERO ENERGY GREEN BUILDING.

• PLOT AREA:9565sq m

• MAXIMUM GROUND COVERAGE:30%

• F.A.R: 200

• HEIGHT:35m

• Built-up area : 3,1400 m2

• , (18726 m2 – superstructure &

12675 m2

• - Basement)

• Year of completion : 2013

LOCATION AND ACCESSIBILITY:

PR

IMA

RY

RO

AD

(AU

RO

BIN

DO

MA

RG

)

• THE SITE IS SURROUNDED ON EAST BY NDMC HOUSING AND 15M. ROW, ON WEST BY

12M ROW AND ON NORTH LODHI COLONY AND 12M. ROW, ON SOUTH GPRA COLONY

OF ALIGANJ.

• THE PLOT IS EASILY APPROACHABLE FROM AUROBINDO MARG AND LODHI ROAD.

• A METRO STATION "JORBAGH" IS AT WALKABLE DISTANCE OF ABOUT 300M FROM THIS

PLACE.

ACHIEVEMENTS:

• 40% SAVINGS IN ENERGY

• ZERO ELECTRICITY BILLING

• 55% SAVINGS IN WATER

• ZERO NET DISHARGE

• LARGEST ROOF TOP SOLAR POWER SYSTEM IN ANY MULTISTOREYED BUILDING (930KWP)

• FIRST IN GOVERNMENT SECTOR TARGETED FOR BOTH RATINGS OF GREEN BUILDING (5STAR GRIHA LEED

India PLATINUM)

CRITERIONS OF GRIHA FULFILLED

NO. CRITERION POINTS

1 Site selection 1

2 Preserve and protect landscape during construction 5

3 Soil conservation (till post-construction) 2

4 Design to include existing site features 4

5 Reduce hard paving on-site and/or provide shaded

hard-paved surfaces

2

6

Enhance outdoor lighting system efficiency and

use renewable energy system for meeting outdoor

lighting requirements

3

7 Plan utilities efficiently and optimize on-site

circulation efficiency

3

SITE PLANNING

SOURCE: GRIHA WEBSITE

MEASURES FOR SITE • Wider Front Setback (22m) to protect front tree line

• Preserve the integrity of the green street

• Preservation of the local ecology, Tree Cutting approvals for 46, but only 19 cut

• - 11 Trees Transplanted

• - Excavated Soil reutilized at other construction sites and the Zoo

•The IPB office building for the ministry of

environment and forests has been planned in 2

parallel blocks facing the

•north south direction, with a large linear

open court in the centre.The Building blocks

create a porous block form to optimize

•air movement throughout the site and the N-

S orientation allows for optimum solar access

and shading.

• EFFECTIVE VENTILATION BY ORIENTATING THE BUILDING E-W AND BY OPTIMUM

INTEGRATION WITH NATURE BY SEPARATING OUT DIFFERENT BLOCKS WITH CONNECTING

CORRIDORS AND A HUGE CENTRAL COURT YARD.

E W

N

•More than 50% area outside

the building is soft

with plantation and grassing.

•circulation roads and pathways

soft with grass paver blocks

to enable ground water recharge

BUILDING PLANNING AND CONSTRUCTION STAGE

NO. CRITERION POINTS

10 Reduce landscape water requirement 3

11 Reduce water use in the building 2

12 Efficient water use during construction 1

13 Optimize building design to reduce conventional

energy demand

8

14 Optimize energy performance of building within

specified comfort limits

16

15 Utilization of fly-ash in building structure 6

16 Reduce volume, weight, and construction time by

adopting efficient technologies (such as pre-cast systems)

4

SOURCE: GRIHA WEBSITE

BUILDING PLANNING AND CONSTRUCTION MEASURES

Reduce landscape water requirement-

•Drip irrigation

•Use of native species of shrubs and trees having low water demand in landscaping

•Low lawn area so as to reduce water demand.

•Reuse of treated water for irrigation

Reduce water use in the building-

•Low discharge fixtures

•Dual Flushing cistern

•Waste water treatment

•Reuse of treated water for irrigation and cooling towers for HVAC

•Rain water harvesting

Efficient water use during construction-

•Use of curing compound

Site and Water Mgmt Strategies Appropriate Shading from Summer Sun, while allowing in winter sun

Optimize building design to reduce conventional energy demand.-

• ENERGY EFFICIENT LIGHT FITTINGS TO REDUCE ENERGY DEMAND

• PART CONDENSER WATER HEAT REJECTION BY GEOTHERMAL MECHANISM. THIS WILL ALSO HELP IN WATER CONSERVATION IN COOLING TOWERS FOR HVAC SYSTEM

• VARIABLE CHILLED WATER PUMPING SYSTEM THROUGH VFD.VFD ON COOLING TOWERS FANS AND AHU.

• PRE COOLING OF FRESH AIR FROM TOILET EXHAUST AIR THROUGH SENSIBLE & LATENT HEAT ENERGY RECOVERY WHEEL

• ENTIRE HOT WATER GENERATION THROUGH SOLAR PANELS.

• MAXIMUM DAYLIGHTING

• REGENERATIVE LIFTS.

• USE OF LUX LEVEL SENSOR TO OPTIMIZE OPERATION OF ARTIFICIAL LIGHTING.

• SOLAR POWERED EXTERNAL LIGHTING.

Optimize energy performance of building within specified comfort limits-

• Reducing energy consumption (compared to GRIHA benchmarks) while maintaining occupant comfort:

• o For achieving visual comfort:

• • Dire t li e of sight to the outdoor e iro e t to isio glazi g for uildi g occupants for more than 90% of the occupied spaces.

• Avoiding Deep floor plates to create maximum daylighted spaces.

• • La ds api g pla ed ith ati e spe ies a d ater ody features i e tral court and all around the building.

• o For achieving thermal comfort:

• • All ir ulatio spa es or passages ere aturally e tilated / shaded / ot air conditioned.

• • E ergy Effi ie t Chilled ea ased Cooli g syste proposed together ith condenser water cooling through ground pipes.

• • Ope a le i do s ere proposed i o ditio ed areas to e a le to utilize favourable outdoor conditions.

• • I sulated Walls through usi g a i tegrated AAC + Ro k ool o i atio together ith high effi ie y DGU’s a d UPVC

• frames for the windows.

Energy Conservation Measures

Utilization of fly-ash in building structure-

•Ready Mix Concrete with PPC having more than 30% fly ash content.

Reduce volume, weight, and construction time by

adopting efficient technologies (such as pre-cast systems)-

ON SITE RENEWABLE ENERGY SYSTEM WITH SOLAR PHOTOVOLTAIC CELLS TO MEET TOTAL

ENERGY DEMAND.

FLY ASH = 40 %

NO. CRITERION POINTS

17 Use low-energy material in interiors 4

18 Renewable energy utilization 5

19 Renewable-energy-based hot water system 3

20 Waste water treatment 2

21 Water recycle and reuse (including rainwater) 5

RECYCLE,RECHARGE &REUSE

NO. CRITERION POINTS

22 Reduction in waste during construction 1

23 Efficient waste segregation 1

24 Storage and disposal of wastes 1

25 Resource recovery from waste 2

WASTE MANAGEMENT

SOURCE: GRIHA WEBSITE

SOURCE: GRIHA WEBSITE

NO. CRITERION POINTS

26 Use low-VOC paints/adhesives/sealants 3

27 Minimize ozone depleting substances 1

28 Ensure water quality 2

29 Acceptable outdoor and indoor noise levels 2

30 Tobacco smoke control 1

31 Provide at least the minimum level of accessibility for persons

with disabilities

1

32 Energy audit and validation MANDATORY

33 Operation and maintenance 2

34 Innovation points 4

HEALTH &WELL BEING

SOURCE: GRIHA WEBSITE

20

SOLAR PV SYSTEM 930KWp CAPACITY

TOTAL AREA 6000 M2

TOTAL AREA OF PANELS 4650 M2

ANNUAL ENERGY Generation 14.3 lakh units

Highest efficiency (20%) Solar PV panels

Grid Interactive System

NET ZERO ENERGY

SOURCE- AR,DEEPENDRA PARSAAD REPORT

CHILLED BEAMS INDUCTION

UNITS OVERVIEW:

Total room mixing

is achieved

through

Convection

currents

within the space

Chilled Water

Hot Water

Primary air ventilation

from Dedicated Outdoor

Air Source

CHILLED BEAM INSTALLED AT SITE:

23

Flexible Duct (6 Inch dia.)

Chilled Beam

Drain Pipe (¾” dia.)

Chilled Water Supply Pipe (½” dia.)

Chilled Water Return Pipe (½” dia.)

Supply

Air

Induced Air

GEOTHERMAL HEAT EXCHANGE

AT SITE: • There are 180 vertical bores at the

Depth of 80 meter all along the Building Premises. Minimum 3 meter distance is maintained between any two bores.

• Each bore is lowered with HDPE pipe U-loop (32mm outer Dia.) and grouted with Bentonite Slurry.

• Each U-Loop is connected to MS Header Pipe(100mm Dia.)which finally joins the Condenser Water Line in Plant Room.

• Condenser hot water is sent at 100°F (37.8° C) & back at 900 F (32.2° C).

• One U-Loop has 0.9 TR Heat Rejection capacity, so all together 160 TR of Heat rejection is obtained without using a cooling tower.

• Enormous water saving since no make up water is required.

• • Make up water pumping & treatment cost get eliminated.

• • Saves cooling tower fan energy.

MATERIALS •Stone available in nearby area for flooring

•Terrazzo flooring with locally available stone materials.

•Fly ash brick.

•AAC blocks.

•Jute bamboo composite for door frames & shutters.

•UPVC windows with hermetically sealed double using low heat transmittance index glass.

•Use of high reflectance terrace tiles for low heat ingress.

•Avoided aluminum as it has high embedded energy

•Sandstone Jalis.

• Stone and Ferrocement Jalis

Satisfies all the quality parameters that

a normal flush door does

•Bamboo Jute Composite Doors and frames & flooring

• High Efficiency Glass, high VLT, low SHGC & Low U-value,

•Optimized by shading

• Light Shelves for bringing in diffused sunlight

•Use of material available having Recycled content