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Behavior of R410A low GWP alternative refrigerants DR-55, DR-5A, and R32 in the components of a 4-RT RTU.

Number: pap. 2116

Author(s) : SCHULTZ K.

Summary

Concerns about the impact on the environment of the refrigerants used in HVAC&R equipment are driving the development of alternative refrigerants with lower global warming potentials (GWPs). This paper reports the performance of DR-55 (now designated as R452B), DR-5A (now designated as R454B), and R32 in comparison to R410A at the component level from tests run on a 4 RT (14 kW) commercial unitary rooftop heat pump. Overall unit performance was previously reported (Schultz and Kujak, 2016), showing DR-55 and DR-5A to be design-compatible replacement candidates for R410A. This paper further confirms this by comparing performance at the compressor, evaporator, and condenser component level.

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Pages: 8 p.

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Details

  • Original title: Behavior of R410A low GWP alternative refrigerants DR-55, DR-5A, and R32 in the components of a 4-RT RTU.
  • Record ID : 30018823
  • Languages: English
  • Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2016/07/11

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