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The acceptability of different types of evaporative cooling systems across India.

Number: pap. 3383

Author(s) : RAO V. V., DATTA S. P.

Summary

In present days, building energy consumption for cooling and heating purposes accounts for about 40% of entire energy consumption. The conventional air conditioning system based on vapour compression cycle is energy intensive and influences the environment through leakage of hydrofluorocarbons, significantly. Therefore, there is an immediate need for development of energy efficient air conditioning systems. It is a well-known fact that evaporative cooling mechanism is natural, eco-friendly and involves minimal energy consumption for air conditioning purpose. In addition, evaporating cooling systems are inexpensive, and involve minimum initial and running costs compared to conventional vapour compression systems. In this work, a comparative study among direct evaporative cooling (DEC), indirect evaporative cooling (IEC) and hybrid system (two stage DEC-IEC) has been done to estimate the potentiality of evaporative cooling in terms of energy savings and wet bulb effectiveness with a commercial software DesignBuilder followed by simulation in EnergyPlus with a constant cooling load for major cities namely Hyderabad, Delhi, Mumbai, Chennai, Kolkata and Jodhpur in India for various time scales i.e., annually, monthly and daily basis. Based on the study, it can be concluded that cooling energy consumption is maximum when two stage DEC-IEC based systems are used compared to DEC or IEC alone irrespective of the region and simulation period. The indoor air temperature comparison results indicate that Jodhpur has highest indoor temperature with the evaporative cooling system. The indoor relative humidity results reveal that New Delhi has highest indoor air relative humidity with evaporative cooling system and zone sensible cooling is maximum for Jodhpur from February-April.

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Pages: 11

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Details

  • Original title: The acceptability of different types of evaporative cooling systems across India.
  • Record ID : 30024768
  • Languages: English
  • Subject: Developing country
  • Source: 2018 Purdue Conferences. 5th International High Performance Buildings Conference at Purdue.
  • Publication date: 2018/07/09

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