Comparison of various alternative refrigerants for vapour compression refrigeration systems

Conference proceedings article


ผู้เขียน/บรรณาธิการ


กลุ่มสาขาการวิจัยเชิงกลยุทธ์

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รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่งDalkili็ A.S., Wongwises S.

ผู้เผยแพร่Hindawi

ปีที่เผยแพร่ (ค.ศ.)2011

ISBN9780791838921

eISSN1745-4557

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84860897573&partnerID=40&md5=36e56f0e0b0a7380fee6d57de2e432e1

ภาษาEnglish-Great Britain (EN-GB)


บทคัดย่อ

Single-stage vapour compression refrigeration system was compared with an actual vapour compression cycle, single-stage process with internal heat exchanger, and a two-stage process with economiser using the refrigerants of HCFC-22, CFC-502 and their alternatives such as HFC-134a, HFC-32, HFC-152a, HFC-404A, HFC-407C, HFC-507, HFC-410A. A theoretical performance study on a cascade refrigeration system was performed using two refrigeration cycles connected through the heat exchanger in the middle working as the evaporator for the high pressurized cycle and condenser for the low pressurized cycle. Other performance study was performed using a two-stage cascade refrigeration system having low and high pressure compressors connected through the mixing chamber in the middle. The condensation temperatures were between 30 and 50 ฐC, evaporation temperatures were between -50 ฐC and 5 ฐC and heat exchanger and economiser temperatures were kept as constant for the comparisons. Some of the alternative refrigerants' coefficients of performance values are found to be higher than their base traditional pure refrigerants. The effects of the main parameters of performance analysis such as refrigerant type, degree of subcooling, and superheating on the performance coefficient, refrigerant charge rate and volumetric refrigeration capacity are investigated for various operating conditions as case studies. Copyright ฉ 2011 by ASME.


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อัพเดทล่าสุด 2022-06-01 ถึง 15:42