Optimization of Energy Efficiency Measures (EEMs) for mid rise-office building in five climatic zones of India

  • YEAR
    Kabre, Chitrarekha
    Tyagi, Kalpana
    2019 Conference Papers
    Building Performance Evaluation
    Conference Papers


The building sector consumes one third of total energy in India, the number is significant. The Energy Conservation Building Code (ECBC 2017) of India launched by Ministry of Power, Government of India provides climate specific Energy Efficiency Measures (EEMs) and standards, by which the energy consumption of building can be reduced at three levels ECBC, ECBC + and Super ECBC. The ECBC compliance can be achieved by one of two methods: ‘Prescriptive method’ and ‘whole building performance (WBP) method.’ The Indian subcontinent is a big geographical unit, which has almost thirty degrees of
latitudinal extent (between 6N and 36N) and the same amount of longitudinal extent (between 68E and 98E). With its vast size about 3.2 million square kilometers, India has wide spectrum of climatic conditions. The climatic map included in the National Building Code of India (BIS 2016) for the purpose of design of buildings distinguishes five climate zones: Hot and dry, Warm and humid, Moderate, Composite and Cold climate. This paper aims to investigate prescriptive Energy Efficiency Measures (EEMs) for a mid-rise office building in five cities representing each of the climatic zones of India: Hot and dry
(Ahmedabad), Warm and humid (Chennai), Moderate (Bengaluru), Composite (Delhi) and Cold climate (Srinagar). A mid rise office building with a floor plat of 50 x 33 meter and gross floor Area of 6582 sqm fully air-conditioned was modeled using e- Quest 3.64 for four cases: Business as usual (BAU) baseline model (based on current specification or conventional of an Indian office buildings), ECBC, ECBC+ and super ECBC (based on ECBC 2017) for five cities. The effects of prescriptive Energy
Efficiency Measures (EEMs) were analyzed for each of the climatic zones and it was found that ECBC models represents 40% to 50% reduction in energy consumption while as EPI ratios are higher than EPI ratios given in the ECBC 2017. The paper, therefore, recommends that the ECBC 2017 should a give range of EPI ratios for each climatic zone to optimize energy efficiency measures.

Keywords: air conditioned mid rise office buildings, Energy Efficiency Measures, climatic zones of India,


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