IIR document

Proposal of an eco-friendly high-performance air-conditioning system. 1. Possibility of improving existing air-conditioning system by an evapo-transpiration condenser.

Author(s) : MINH THU H.T., SATO H.

Type of article: Article, IJR article

Summary

Air-conditioning (AC) system consumes high energy and releases waste-heat. In the present study, we propose a method to improve its performance and minimize waste-heat by replacing existing air-cooled condenser by an evaporation and transpiration, evapo-transpiration, condenser. The improvement is confirmed by performing experiment for a conventional air-cooled AC system and a water-cooled AC system. Condenser temperature in the air-cooled system is higher than outdoor-temperature by 5-10 °C, while it is -5 to 5 °C in case of the testing system. From simulation results, saving energy consumption is expected to reach up to 30% in summer with the testing system. Based on these results, an evapo-transpiration heat-exchanger was developed as a new condenser. Heat-transfer coefficient of the testing heat-exchanger is at least 4 times higher than that of air-cooled condenser. Even hot fluid is used inside copper-tubing, its outlet-air temperature is as nearly as outdoor temperature.

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Pages: 1589-1595

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Details

  • Original title: Proposal of an eco-friendly high-performance air-conditioning system. 1. Possibility of improving existing air-conditioning system by an evapo-transpiration condenser.
  • Record ID : 30008685
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 6
  • Publication date: 2013/09

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