02354nas a2200241   4500008004100000022001400041245008500055210006900140260010600209300001400315490000700329520152300336653002101859653000801880653001601888653001601904653002201920653001101942100001501953700001701968700001301985856011401998       2005                        eng d  a1359-431100aPerformance assessment of HCFC-22 window air conditioner retrofitted with R-407C0 aPerformance assessment of HCFC22 window air conditioner retrofit  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcDEC  a2937-29490 v253 a<p>This paper presents the experimental performance analysis of a 1.5 TR window air-conditioner, retrofitted with R-407C, as a substitute to HCFC-22. Experimental results showed that R-407C, for the operating conditions covered in this study, had lower cooling capacity in the range 2.1-7.9% with respect to HCFC-22. The coefficient of performance for R-407C was lower in the range 7.9-13.5%. The power consumption of the unit with R-407C was higher in the range 6-7% than HCFC-22. The discharge pressures for R-407C were higher in the range 11-13% than HCFC-22. This paper also presents simulation results of heat exchangers of an HCFC-22 window air conditioner retrofitted with R-407C. The simulation has been carried out using EVAP-COND, a heat exchanger model developed by National Institute of Standards and Technology, U.S.A. The simulated evaporator capacities are within +/- 3% of the experimentally measured cooling capacities for both refrigerants. Simulation results for R-407C and HCFC-22 are compared. The exit temperatures of R-407C are lower by 1.9 degrees C to 5.2 degrees C in the condenser and are higher by 3.2 degrees C to 3.8 degrees C in the evaporator than HCFC-22. Evaporating pressures of R-407C are higher by 4.5-5.3% as compared to HCFC-22. The pressure drops of R-407C are lower in both the evaporator and the condenser as compared to HCFC-22. The outlet temperatures of air for HCFC-22 and R-407C in both heat exchangers are nearly the same. (c) 2005 Elsevier Ltd. All rights reserved.</p>10acooling capacity10aCOP10ameasurement10aperformance10apower consumption10aR-407C1 aDevotta, S1 aPadalkar, AS1 aSane, NK  uhttps://library.ncl.res.in/content/performance-assessment-hcfc-22-window-air-conditioner-retrofitted-r-407c-0