Results 141 to 150 of about 724 (168)
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Pool boiling performance of R32/R290 and R32/R1270 blends as potential alternatives to R410A
Applied Thermal EngineeringLiang-Han Chien +2 more
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Derived thermodynamic design data for heat pump systems operating on R1270
Heat Recovery Systems and CHP, 1991Abstract Theoretical Rankine coefficients of performance and the compression ratios have been presented for heat pump systems operating on R1270. These values are listed in tabular form for temperature lifts of 5–75°C and condensing temperatures of 12–90°C in one degree increments.
M.A.R. Eisa +2 more
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Journal of Mechanical Science and Technology, 2008
In this study, therma l performance of two hydrocarbon refrigerants of R290 and R1270 was measured in an attempt to substitute R22. They wer tested in a heat pump bench tester of 1 ton capacity with a hermetic rotary compressor. Water and water/glycol mixture were employed as the secondary heat transfer fluids in the test bench.
Ki-Jung Park, Dongsoo Jung
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In this study, therma l performance of two hydrocarbon refrigerants of R290 and R1270 was measured in an attempt to substitute R22. They wer tested in a heat pump bench tester of 1 ton capacity with a hermetic rotary compressor. Water and water/glycol mixture were employed as the secondary heat transfer fluids in the test bench.
Ki-Jung Park, Dongsoo Jung
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Performance of a Split-Type Air Conditioner with Natural Refrigerant R1270 to Replace R22
Advanced Materials Research, 2011A natural and environment friendly refrigerant propylene (R1270) is proposed as a substitute of R22 in the residential air conditioner. The experiments on the cooling performance of the air conditioner with R1270 and R22 were respectively conducted on an existing enthalpy potential bench, during the degree of superheating keep constant and refrigerant ...
Jian Bo Chen +3 more
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Energy Conversion and Management, 2020
Abstract This study presents a novel dual-temperature air-source heat pump system with an ejector using zeotropic mixture R1270/R600a. The system provides a high-temperature heat source (around 60 °C hot water) and low-temperature heat source (around 35 °C hot water) respectively. The system improves its performance via the application of an ejector.
Jian Liu, Zhang Lin
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Abstract This study presents a novel dual-temperature air-source heat pump system with an ejector using zeotropic mixture R1270/R600a. The system provides a high-temperature heat source (around 60 °C hot water) and low-temperature heat source (around 35 °C hot water) respectively. The system improves its performance via the application of an ejector.
Jian Liu, Zhang Lin
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Advanced Materials Research, 2011
A natural and environment friendly refrigerant propylene and propane are proposed as the substitute of R22 in air conditioner. The experiments were respectively conducted on an existing enthalpy potential lab. Refrigerant charge was held at the constant superheat condition.
Jian Bo Chen, He Li, Ling Xi
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A natural and environment friendly refrigerant propylene and propane are proposed as the substitute of R22 in air conditioner. The experiments were respectively conducted on an existing enthalpy potential lab. Refrigerant charge was held at the constant superheat condition.
Jian Bo Chen, He Li, Ling Xi
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The Experiment on System Performance Comparing Analysis and Displacement between R1270 and R22
Applied Mechanics and Materials, 2015The refrigeration circle performance of air conditioning comparing analysis and displacement between R1270 and R22 is studied in this paper. In addition, the system performance optimization of R1270 refrigeration circle is discussed.The experimental results show that the smaller tube diameter of heat exchanger for R1270 system is easy to improve the ...
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Experimental study of performance AC split retrofitting R32 to R1270
AIP Conference Proceedings, 2023null Ridwan +3 more
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