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Optimal refrigerant charge determination based on SCOP maximization with IMST-ART simulation tool.

Number: 2323

Author(s) : SANCHEZ MORENO GINER L., BARCELÓ RUESCAS F., GONZÁLVEZ-MACIÁ J.

Summary

In the past, the refrigerant inventory of vapour compression cycles was not a question under study because traditional refrigerants were widely available. There were no limitations on its use due to environmental, safety or economic reasons. The vapour compression cycles were usually provided by a liquid receiver or a deposit placed in the refrigerant circuit to ensure optimum cycle performance at any working condition and mitigate the adverse effects of the refrigerant charge fluctuations or leakages to the ambient.
The refrigerant charge reduction is a matter of increasing importance, not only because of the rise in prices of hydrofluorocarbons but also due to safety concerns of the leading natural alternatives such as hydrocarbons. For this reason, refrigerant charge optimization became crucial during the design and test phases of heat pumps.
There is no space for the refrigerant deposit in vapour compression systems with optimized refrigerant charge. Consequently, it is essential to know which refrigerant charge will make the vapour compression cycle work with the best performance during a whole year.
In this work, a simulation campaign covering the different tests conditions for the seasonal coefficient of performance (SCOP) for brine-water and air-water heat pumps is performed using the software IMST-ART. With the results, it can be possible to understand the different behaviour of the heat pump during the year and guess the best criteria to establish the optimum refrigerant charge for each type of heat pump mentioned.

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Pages: 11 p.

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Details

  • Original title: Optimal refrigerant charge determination based on SCOP maximization with IMST-ART simulation tool.
  • Record ID : 30030657
  • Languages: English
  • Subject: Technology
  • Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2022

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