Building Performance - Prashasti, Ronit.pptx

Building Performance of public commercial buildings

1. BUILDING PERFORMANCE AND COMPLIANCE ARCH434 Semester -9 SUBMITTED BY- PRASHASTI JAIN - A1904021009 RONIT SINGH - A1904021036

2. INDIRA PARYAVARAN BHAWAN, New Delhi

3. ABOUT This was the new head office of the Ministry of Environments and Forests at New Delhi. The design concept was to create a net zero energy green building. Architect: PWD 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

4. LOCATION: The site is surrounded by NDMC Housing on the East with a 15x12m row on the west and Lodhi colony to its North and with GPRA colony to its south The Plot is accessible via Aurobindo Marg and via Lodhi Road The Metro Station Jor Bagh is at a walkable distance of 300m

5. ACHIEVEMENTS 40% Savings In Energy Zero Electricity Billing 55% Savings In Water Zero Net Discharge Largest Roof Top Solar Power System In Any Multistoried Building (930kwp) First In Government Sector Targeted For Both Ratings Of Green Building (5 star GRIHA & LEED India Platinum)

6. SITE LAYOUT PLAN

7. 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 Courtyard. E S W N

8. More than 50% area outside the building contains soft plantations and grass Circulation roads and pathways with grass paver blocks to enable ground water recharge

9. 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 Rainwater harvesting Efficient water use during construction- Use of curing compound

10. 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.

11. Natural ventilation due to stack effect SITE PLANNING WITH RESPECT TO NATURE - Maximum Ground Coverage Used (30%) to keep building height comparable to the surroundings - Respecting the Eco- logic of the site. Building Punctures to Aid Cross Ventilation

12. CHILLED BEAM SYSTEM INSTALLED AT SITE

13. ENERGY CONSUMPTION ON SITE

14. MATERIALS USED Stone available in nearby area for flooring 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. Calcium Silicate Tiles Portland Puzzolona Cement ( with 30 % fly ash ) Low Volatile Organic Compound Paints Stone and Ferrocement Jalis High Efficiency Glass, high VLT, low SHGC & Low U-value, Optimized by shading Light Shelves for bringing in diffused sunlight Avoided aluminum as it has high embedded energy

15. 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) Onsite renewable energy system with solar photovolatic cells to meet total energy demand Terrazzo flooring with locally available stone materials.

16. . SECTION AA’

17. . SECTION BB’

18. Building form wrapped around a pedestrian-friendly shaded green open courtyard A continuous green axis from front of site across the atrium. Large openings in building form on South and North. Conservation of natural soil and trees. Orientation of building has been planned reduce ingress of solar radiation. Shaded landscape areas to reduce ambient temperature. Building punctures are designed to aid cross ventilation NORTH ARCHITECTURAL DESIGN STRATEGIES

19. The façade has been designed to receive 70% of natural daylight. Shading devices in East, West and South to take care of the solar radiations especially in summer. O n the Southern side of the building terraces have been created to take the winter sun . B arrier free access for differently- abled pe ople . Automated parking in three level basements ARCHITECTURAL DESIGN STRATEGIES

20. CROSS VENTILATION AT THE MICRO LEVEL THROUGH OPENINGS JAALIS IN THE LOBBY TO AID CROSS VENTILATION & PREVENT HEAT GAIN R O A D USAGE OF BUILDING CONFIGURATIONS FOR UTILIZING LESSONS FROM NATURE AND TRADITIONAL BUILT ENVIRONMENTS PROJECTIONS INTO THE CENTRAL SPACE FOR SHADING + Shading by Passages

21. NOTABLE FEATURES OF THE BUILDING A Net Zero Energy Building Energy demand and generation of building is 14 lakh KWH Energy Efficiency LPD achieved is 5 watt/sqm as against 11.8 watt/sqm of ECBC 2007 Saving in energy > 50% 450Sft/Tr as against 150sft/Tr in conventional building Electrical load designed as 4.3 W/ Sft as against 10W/ sft in conventional building Overall Design Load optimized at 800 KW High Efficiency Solar Panels for Net Zero Energy efficient T- 5 and LED Fixtures Innovative Chilled Beam system for cooling Water cooled chillers, double skin air handling units with variable frequency drives (VFD) Geo thermal heat exchange for heat rejection from Air- conditioning system

22. INDIAN HABITAT CENTER

23. ABOUT THE SITE CONVENTIONAL CENTER Architect : Joseph Allen Stein Location : New Delhi Site area : 9 acres Super built up area : 97000 sq. mt. Year of completion : 1993 Design style : modern with brick facade

24. Road- Lodhi Road (North) Vardan Marg (South & East) Meera Marg (West) Metro- 1.7km Bus Station- 7km LOCATION

25. SITE LAYOUT PLAN

26. The campus spreads in an area of nine acres. It consists of six restaurants, four galleries, multiple auditorium, an amphitheatre and an atrium. Moreover, landscape, horticulture, water bodies create a soothing and pleasant ambience on the campus. The campus is accessible from three sides. Lodhi road being on the north side segregates vehicular and pedestrian movement. Five main building blocks contain the major functional spaces like offices, exhibition areas, conference facilities, cafeterias etc. These blocks interconnect using aerial walkways. PLANNING STRATEGIES

27. Furthermore, the convention block divides into two built structures. One is the convention centre and the other is the auditorium. The convention centre has a separate entry to avoid disturbance in other parts of the campus. Moreover, such a big campus requires a lot of parking spaces. So, to fulfil the parking needs of the campus, parking of 1000 cars are present on the basement floor.

28. GATE- 1 GATE- 2 AREAS

29. 3 ) PARKING AREA (near gate 1) 4 ) PARKING AREA (near gate 2, 3)

30. 5 ) HUB (open air restaurant)

31. 6 ) The Stein auditorium/ conference hall Additionally, the building has one of the finest convention centres. It is equipped with facilities like an auditorium, conference halls, guest rooms and a documentation centre. The convention centre, as well as the hospitality areas together, are the habitat world. 7 ) Cafeterias Moreover, there are six cafeterias on the campus from which eatopia and the American diner are open to the public. The other four namely Delhi ‘o’ Delhi, Oriental octopus, Past times and The deck are for members only.

32. 8 ) Structure

33. 1 ) Blocks (4A,4B,6A) 9 ) Amphitheatre

34. 12) Visual Arts Gallery 11) Open Palm Court

35. The exposed brick façade, natural landscaping, and open spaces gives an earthiness to the space. And keep its habitat theme intact. The fountain near the second entrance reduces heat as well as cool the surrounding. It uses the phenomena of evaporative cooling. Shading devices are also installed on the roof. It tends to block the sun rays. DESIGN FEATURES

36. The central open courtyard is house to a variety of vegetation ranging from tall trees to small shrubs. It also has stone sculptures. Also, these green areas provide ventilation within the building space. The amphitheater is an interesting feature of the complex. Open to sky grass lawns create a different setting altogether.

37. The use of level difference create segregation between vehicular and pedestrian entries. The building is 30 meters high. However, the different building blocks interconnects with aerial walkways. Horizontal and vertical ribbon windows with slits are used for plantation.

38. Shading device used in courtyard reflect back 70% of summer heat. Therefore, it is a space frame structure with blue reflectors. Also, these reflectors are adjustable. They allow the winter sun to come in as well as block the summer sun. In the day time sunlight enters the campus through slits and niches. These make beautiful patterns on different textures. Also well- designed ventilation shafts allow sunlight to travel to the basement. A clean facade is obtained by eliminating rain water pipes and roof gutters. Instead of rain water pipes, separation between walls are lined with tiles for the disposal of rain water.

39. The sun shading device installed in the courtyard help in ventilation and cool down the surroundings. The vegetation present in the shaded courtyard as well as grass lawn in open to sky courts make the campus green and habitable. The fountain cools the campus. Additionally, the sound of water adds a sense of calm to the place. The floor space illuminates by daylight. Thus, reduces the need for artificial lighting. The campus design is universal. It is also easily accessible by everyone. In addition, railing is provided on pedestrian pathways. Which makes it wheelchair friendly. Moreover, handicap car parking is also present. In addition, the lift is operable from basement to terrace. ENERGY EFFICIENT DESIGN FEATURES OF THE INDIAN HABITAT CENTRE