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Design considerations in cold climates.

Author(s) : SCHUETTER S., HACKEL S.

Type of article: Article

Summary

Air source variable refrigerant flow (VRF) systems are grabbing a greater share of the market in moderate climates. However, they are not widely implemented in cold climates because they typically lose capacity and efficiency at low ambient temperatures. To overcome this barrier, VRF systems may be supplemented by an additional heat source. Alternately, they can be upgraded to water or ground source systems that are not subject to ambient temperatures. While questions remain regarding how to select, design, and operate VRF systems in colder climates to achieve good energy performance and reduce capacity degradation, we have analyzed several strategies and share our conclusions and observations in this article.

Details

  • Original title: Design considerations in cold climates.
  • Record ID : 30020924
  • Languages: English
  • Subject: Environment, General information
  • Source: ASHRAE Journal - vol. 59 - n. 1
  • Publication date: 2017/01

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