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IIR document

A new method for measuring refrigerating capacity of fin-tube type heat exchanger.

Number: pap. ID63

Author(s) : WANG H., WATANABE M., MAN'O T., et al.

Summary

In order to measure cooling capacity of Fin-tube type heat exchanger, a few methods have been practically used. But all of them have serious defects that worsen measuring accuracy. Authors have proposed a novel method for measuring cooling capacity which had distinct superiorities in high accuracy and brief measuring time. The method employed a duct on which test heat exchanger, electric heater and a fan were installed. The air forced to flow inside of the duct and the heater was controlled to let the
temperature inlet and outlet of the duct equal. In the room temperature experiment, the accuracy of about ±3% was obtained. The measuring accuracy, however, became totally worse when the temperature range was extended to below 0°C which was needed for preserving frozen foods. In this paper, several kinds of improvements of the measuring equipment for using at temperature below 0°C were attempted and finally ±5% in measuring accuracy was achieved.

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Pages: 7 p.

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Details

  • Original title: A new method for measuring refrigerating capacity of fin-tube type heat exchanger.
  • Record ID : 30012379
  • Languages: English
  • Source: 11th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
  • Publication date: 2014/08/02

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