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The electrical power demand scenario for cooling in buildings in India seems unsustainable as this demand can rise six-fold by 2040, creating major peak demands, high amount of greenhouse gas emissions and urban heat island effect. Indirect evaporative cooling (IEC), which uses water as refrigerant, provides sensible cooling without humidifying the air; making it suitable for dry climatic conditions. In the present work, a novel 1 kW IEC prototype, suitable for domestic applications is developed and tested. This system addresses issues related to direct evaporative cooling systems and eliminates costly air to air heat exchanger, unlike conventional IECs. The electrical COP values up to 9.2 are achieved in current IEC system, resulting into reduction of 22 units of electrical energy and CO2 production by 18.5 kg in a month per kW of cooling produced comparing with a 5-star split AC.

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Development and Experimental Investigation on an Indirect Evaporative Cooling System

  • 会议论文

  • 发表日期：

    2025年

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  • Jignesh Mehta,
  • Lakshit Bilwala,
  • Deepraj Vasava,
  • Jaydip Vasava,
  • Aman Yadav,
  • Suruchi Sharma

摘要

The electrical power demand scenario for cooling in buildings in India seems unsustainable as this demand can rise six-fold by 2040, creating major peak demands, high amount of greenhouse gas emissions and urban heat island effect. Indirect evaporative cooling (IEC), which uses water as refrigerant, provides sensible cooling without humidifying the air; making it suitable for dry climatic conditions. In the present work, a novel 1 kW IEC prototype, suitable for domestic applications is developed and tested. This system addresses issues related to direct evaporative cooling systems and eliminates costly air to air heat exchanger, unlike conventional IECs. The electrical COP values up to 9.2 are achieved in current IEC system, resulting into reduction of 22 units of electrical energy and CO2 production by 18.5 kg in a month per kW of cooling produced comparing with a 5-star split AC.