التفاصيل البيبلوغرافية
| العنوان: |
Relief Valve Arrangements for CO2 Refrigeration Systems. |
| المؤلفون: |
Pearson, Andy, Benton, Steve |
| المصدر: |
Proceedings of the Institute of Refrigeration; 2020/2021, Vol. 117, p1-24, 24p |
| مصطلحات موضوعية: |
CARBON dioxide, HEAT pumps, REFRIGERATION & refrigerating machinery, AIR conditioning, DESIGNERS |
| مستخلص: |
The adoption of transcritical carbon dioxide systems in refrigeration has presented several new challenges to system designers, installers and maintenance teams. The correct, safe way to arrange relief valve piping is one of them. There are two polarised schools of thought; that relief valves can be treated in much the same way as for any other refrigerant or that relief valves need a unique installation arrangement different from any other refrigerant. Clearly both positions cannot be correct, or can they? This paper starts with an overview of some key properties of carbon dioxide. The purpose and function of the pressure relief valve is explained and then the reasons why carbon dioxide requires to be treated differently are examined. The paper reviews some of the previously published literature and describes some case study examples of the ways in which systems are installed. Results of tests are also presented and analysed. The wording of current standards on the topic is examined and a proposal for new wording is suggested. The paper will hopefully be helpful to people in all sectors of the refrigeration, air conditioning and heat pump markets where carbon dioxide is used. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
