TY - GEN
T1 - An investigation of R417a as a drop-in alternative for R22 in a residential heat pump
AU - Gao, Zhiming
AU - Mei, Viung C.
AU - Chen, Fang C.
AU - Tomlinson, John
PY - 2006
Y1 - 2006
N2 - Heat pumps are efficient units for providing heating and cooling in both residential and commercial buildings. R22, however, is still being widely used in most heat pumps produced in the United States, which has been scheduled to phase-out by the end of the year 2020. At present, the majority alternatives of R22 consist of hydrofluorocarbon (HFC) refrigerants only. Unfortunately, these HFC replacements require synthetic oil and expensive modification. Recently, R417a, a new alternative of R22, is presented and does not require synthetic oil because R417a contains 3.4 wt% of R600 (butane). R600 is an excellent oil carrier. The emphasis of this paper is an attempt to document the findings of thermodynamic cycle, heat transfer, and experimental study on R417a serving as a drop-in working fluid in a two-ton split heat pump system.
AB - Heat pumps are efficient units for providing heating and cooling in both residential and commercial buildings. R22, however, is still being widely used in most heat pumps produced in the United States, which has been scheduled to phase-out by the end of the year 2020. At present, the majority alternatives of R22 consist of hydrofluorocarbon (HFC) refrigerants only. Unfortunately, these HFC replacements require synthetic oil and expensive modification. Recently, R417a, a new alternative of R22, is presented and does not require synthetic oil because R417a contains 3.4 wt% of R600 (butane). R600 is an excellent oil carrier. The emphasis of this paper is an attempt to document the findings of thermodynamic cycle, heat transfer, and experimental study on R417a serving as a drop-in working fluid in a two-ton split heat pump system.
UR - http://www.scopus.com/inward/record.url?scp=33845516422&partnerID=8YFLogxK
U2 - 10.2514/6.2006-2934
DO - 10.2514/6.2006-2934
M3 - Conference contribution
AN - SCOPUS:33845516422
SN - 1563478153
SN - 9781563478154
T3 - Collection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
SP - 291
EP - 300
BT - Collection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
Y2 - 5 June 2006 through 8 June 2006
ER -