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Investigation of the dynamic heat transfer coefficient of R134a in a horizontal pipe.

Number: pap. 2319

Author(s) : RÜCKERT J. P., SCHMITZ G.

Summary

This paper presents a test rig to measure the dynamic heat transfer coefficient of the refrigerant R-134a in a small diameter horizontal pipe. The experiment layout is basically a cooling cycle. The basic components are a receiver tank filled with R-134a, a pump, an evaporator pipe and a condenser. The evaporator pipe made out of copper is the main element. Thermocouples, pressure sensors and a mass flow sensor provide the information necessary to determine the heat transfer coefficient of the horizontal pipe. In addition to the experimental investigations, a numerical model is created. The results are compared with the test rig results to validate the numerical model.

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Pages: 8 p.

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Details

  • Original title: Investigation of the dynamic heat transfer coefficient of R134a in a horizontal pipe.
  • Record ID : 30012981
  • Languages: English
  • Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2014/07/14

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