Introduction PROJECT DETAILS: Name-water and land management institution, Bhopal Building type- Institutional Year of start/completion-1983-87 Climate- composite The surroundings are suffused with dense planting of evergreen and water bodies.
Design Features The building is oriented along east-west axis to have north-south exposure. Thi reduces solar gain and maximize the usage of daylight. Use of high bulk local stone walling adds to thermal mass. Adjoining areas with soft ground cover and deep irrigation avoid all reflected heat and gain. The roof is insulated with 2.5cm layer of thermocol over RCC shell and topped with stone tiles. additional water sprinklers on the roof allow cooling through evaporation. On the lower floor, the air is admitted through a built in water ensuring higher humidity and cool during hot summer months. The surroundings are suffused with dense planting of evergreen and water bodies.
Design Features The low rise institutional buildings, which merges with the landform, has used simple yet innovative passive solar techniques to reduce space conditioning loads. This landscaper is being built on the conviction of providing maximum human comfort, without relying too much on conventional energy consuming system. WALMI was established in Bhopal, Madhya Pradesh under the central government aid with a desire to increase the effectiveness of irrigation projects. The institute conducts both in built facilities and on fields.
Site Plan The site is located on a flat top hillock adjoining the Kaliasot dam just 15 km away from the new market. The site offers an undisturbed view of water body, down the northern slopes of this 30 km high hillock.
Design Details WALMI is viewed largely as an environmental planning apparatus. It is 230m long landscaper. The building exploits the north-south orientation for user comfort. The WALMI administration and hostels buildings follow the contours of the hill on which they sit, while the long horizontal plan ensures a rural character and simple construction. The long east-west axis determines an axial plan includes main buildings, hostels and area for residential units. This master plan is integrated with landscaping plan to provide a 'Habitable Landscape' rather than building roads and gardens. Usage of natural building material and indigenous plants ensures appropriate aesthetic.
Landscaping Trees are planted primarily to be effective for cooling, reducing the dust, sun glare and acting as natural shields against hot and cold winds.
Water, as a micro climate modifier Water is pumped up from Kaliasote reservoir and stored in overhead water tanks located on top buildings. Cascading water is extensively used to provide coolant air- conditioning rooftops and this water is recycled to landscape zones. All this has been detailed as a showcase for demonstration of a natural element in true harness and as an appropriate modifier of the micro-climate. The 25m x 7m Modular unit (laboratories, library and administrative )will combine to generate gently curvilinear building for spectacular view of lake. CIRCULATION: Meandering pathways through different spaces aligned with flowering and fragrant shrubbery provide pleasant atmosphere while commuting to different zones .
Ventilation, Daylight and Roof Treatment The building is located on east-west axis. This allows induced cross ventilation and abundant natural light without any heat gain, as west side exposure is minimized and roof is also insulated. Appropriate trees are placed judiciously to cut the glare and heat gain, while built-in desert coolers ensures pleasant environment at a reduced energy use. Rooftops are fitted with water sprinklers that cool through evaporation. The roof is also insulated with 2.5cm layer of thermocol over R.C.C.shell and topped with stone tiles. The building has been designed to be ambient external temperature. The aim is to provide effective human comfort and reduce load on air conditioning
Services and Performance 1. Electrical Supply-Although electricity will be supplied at the site, investigating the use of PHOTOVOLTAIC based local generation of power is recommended. Buildings are planned to virtually eliminate electric lights during daytime. 2.SEWAGE MANAGEMENT- There is no municipal disposal on site and this is being managed by two GOBAR GAS PLANTS. PERFORMANCE:- Bioclimatic consideration of the building design along with thoughtful incorporation of passive measures would ensure thermal and visual comfort in the building round with minimal energy usage.
Conclusion Plan and architectural details vastly differ from conventional plan only to economize the expenses and create harmony with nature. The WALMI plan strives to answer physical needs with creative integration of planning, landscaping and appropriate technology. The resultant is cost effective and its aesthetic value are as consequence in this solar architecture.