Thermal comfort and energy use of affordable housing in Ahmedabad, India.
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Apr.19
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Housing for all - 2022', a large-scale housing initiative was launched in 2015 by the Indian government for providing quality affordable housing to the lower economic segment by the year 2022. Occupant thermal comfort is one of the significant aspects of liveability and applies to affordable housing as well. These houses have low energy consumption as of now, however as incomes and comfort expectations increase, energy use and related costs in this segment are expected to surge. So far, comfort field studies in affordable houses in India remains a subject largely neglected. This paper reports findings of the thermal comfort conditions and energy use of 20 houses in three affordable housing developments located in Ahmedabad, India during winter season (November-February). The analysis discusses results from data collected using three methods - Long-term monitoring of household energy use and indoor environment parameters of temperature and relative humidity, instantaneous measurements of thermal comfort conditions and right-here-right-now thermal comfort surveys. It is observed that average daily energy use ranges from 0.5 - 6.75 kWh and is dependent on appliance ownership and occupant behaviour and is base load driven in these houses. 66% of the occupants reported being comfortable in their thermal environment during the survey period. The conclusions from this study will be of meaning to various stakeholders in the affordable housing segment.
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CATE 2019 - Comfort at the Extremes: Energy, Economy and Climate At: Heriot Watt University, Dubai