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Composite climate and aurabindo ashramam,new delhi

The document discusses design considerations for buildings in composite climates, emphasizing the importance of solar heat gain during winter and shading mechanisms for summer temperature control. It highlights the architectural planning of the Sri Aurobindo Ashram in New Delhi, which incorporates elements like well-insulated walls, courtyards for ventilation, and rainwater harvesting systems. The building design includes features such as deep recessed windows and integrated solar water heating to enhance energy efficiency and comfort.

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DESIGN CONSIDERATION FOR COMPOSITE CLIMATE: Regions having a composite climate display characteristics of hot and dry, warm and humid as well as cold climates. •As the winters in this region are uncomfortably cold, windows should be designed such that they encourage direct gain of solar heat during this period. •Deciduous trees can be used to shade the building during summer and admit sunlight during winter. •Well-insulated and very thick walls give a good thermal performance if the glazing is kept to a minimum and windows are well shaded. •In case of non-conditioned buildings, a combination of insulated walls and high percentage of glazing will lead to very uncomfortable indoor conditions. •Indoor plants can be provided near the window, as they help in evaporative cooling and in absorbing solar radiation. •Evaporative cooling and earth air pipe systems can be used effectively in this climate. •Desert coolers are extensively used in this climate, and if properly sized, they can help in achieving comfort levels. IMPORTANT FEATURES:
DESIGN FEATURES (TAKEN FROM SOLAR ENERGY CENTRE,GAUL PAHRI, GURGOAN)
EXAMPLES OF COMPOSITE CLIMATE
Introduction: The Aurobindo Ashram Trust (Delhi branch) is a charitable society doing pioneering work in various fields, notably education, philosophy, and culture. The building complex was planned in the form of offices, swimming pool, library, dining, meditation, and residential facilities. it is planned to house students, visitors, and ashramites - in a hostel-like block which are laidout around 3 hexagonal courtyards The building as it grows will enclose one large courtyard around which there will be 12 such small duodecagonal blocks. The planning grid is a space-filling grid composed of squares and equilateral triangles. The courtyards are surrounded by overlooking corridors, around which the square grids are divided into two rooms and the triangles divided into two sets of toilets and dressing areas. Site Address/ Location: Sri Aurobindo Ashram, New Delhi Climatic Zone: Composite Building Type: Institutional Architect(s): Sanjay Prakash, Anop Singh Rana, Manoj Joshi
vegetation
Courtyard having small water body
RAINWATER AVAILABLE FOR HARVESTING Total area: 95, 870 square metres (Sq m) Average annual rainfall in Delhi: 611 millimetre (mm) Total volume of water harvested: 16, 366 cubic metre (m³) or 1,63,65,879 litres This represents 43 per cent of the total rainwater harvesting potential. RAINWATER HARVESTING SYSTEM In this campus the rainwater from various catchments, including rooftop, surface runoff from open areas, is harvested. ROOF TOP RAIN WATER HARVESTING The rooftop rainwater from this building is collected through a network of pipes and chambers and diverted to the dry open well of 15 m depth and 2m in dia. The rooftop rainwater passes through a desilting chamber before it is diverted to the recharge well. WATER SUPPLY SOURCE The water requirement is met through three tubewells and is supplemented by Municipal water supply.
The plan of the hostel is duodecagonal in shape centred around hexgonal courtyards.the courtyards along with carefully designed ventilators and windows aid in cross ventilation
Light-coloured permanent finished walls have high emissivity and poor absorbitivity.deep recessed windows reduce solar gain
•Rough white finish on the building exterior for high emissivity and poor absorptivity. •Deep recessed window offset the negative effects of rooms that are not oriented as per solar geometry •Properly designed windows and ventilators and interconnected courtyards aid in cross- ventilation •Dense vegetation modifies ambient conditions •Window design encourages only use of daylighting in the rooms during daytime •Building integrated solar water heating systems Load-bearing structure reduces embodied energy by reduced consumption of concrete and steel Except on ground floor, each room gets a balcony on the outer faces. OTHER IMPORTANT FEATURES: Parapet wall with integrated solar hot water panels.also seen is the sructure, which houses the hot water tank