Abstract
The present work is an evaluation of energy reduction (heating and cooling) potential of a dome-shaped adobe house. The energy potential has been evaluated on the basis of energy balance assuming quasi-steady state condition. This has further been analyzed by incorporating the effect of passive energy technologies namely ventilation and Earth–air heat exchanger (EAHE). The analysis for room air temperatures and quantification of energy potential has been carried out for three different locations in India. These locations come under different climatic conditions viz. Bangalore (Moderate climate), Jodhpur (Hot climate), and Srinagar (Cold climate). Annual heating potential for winter was found maximum for the case of cold climate (Srinagar) of the order of 43.96 × 107 kW h while it was estimated minimum for hot climate (Jodhpur) as 16.47 × 107 kW h. Annual cooling potential for summer was found maximum for hot climate (Jodhpur) 28.14 × 107 kW h while it was estimated minimum for moderate climate (Bangalore) as 8.87 × 107 kW h. Thus, a comparison of energy reduction potentials for three locations falling under different climates in India has been made. The performance of dome-shaped house was found to be satisfactory both in winters and summers for the locations considered under different climates. The temperature of room air with an EAHE was found varying due to low isothermal mass of the building. Adobe house was found to temperate the room air temperature, significantly reducing temperature fluctuations within the building.
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