منابع مشابه
Some Safety Studies of a Ternary Refrigerant
A ternary blend of refrigerants composed of HCFC-22, HCFC-142b (chlorodifluoroethane), and a small amount of isobutane, has been used as a drop in substitute for CFC-12 and R-500 refrigerants. It's use as a refrigerant was presented at the Purdue 1992 International Refrigeration Conference--Energy Efficiency and New Refrigerants[ I] . This paper will cover safety related issues and testing perf...
متن کاملEvaluation of Propane as an Alternative to HCFC-22 in Residential Applications
According to the results of the international testing program AREP, the most likely replacements for HCFC-22 refrigerant will be blends of HFCs. However, as concerns about their global warming potential increase, other options should also be considered. As a naturally occurring substance, propane would be an ideal refrigerant, except for its flammability. When dealing with a flammable refrigera...
متن کاملEvaluation of Burning Test Rate Method for Flammable Solids to Increase air-Cargo Safety.
This paper deals with a standard classification procedure for readily combustible solids and their assignment to the relevant packing groups according to international air-cargo legislation and regulations. The current International Air Transport Association and United Nations Orange Book regulations were used on chemically similar substances: hexamethylenetetramine and Dancook ignition briquet...
متن کاملAn Experimental Evaluation of Flammable and Non-Flammable High Pressure HFC Replacements for R-22
In this paper, the performance of three high pressure HFC refrigerants: R-32, R-41 OA, and R-41 08, is compared to that of R-22. R-32 has excellent thermophysical properties as compared to R-41 OA, R-41 08 and R-22. However, R-32 is a flammable refrigerant while R-41 OA and R-41 OB are non-flammable. The performance of these refrigerants is investigated in a residential heat pump at the test co...
متن کاملMethod of Choice of Low TEWI Refrigerant Blends
The TEWI analysis of residential heat pumps shows that it is sensitive to refrigerant emissions and mainly dependent on the seasonal coefficient of performance of the heating unit. Otherwise for countries where electricity is mainly produced by a combination of nuclear-power and hydro-power, the direct emissions become not negligible compared to the indirect emissions. Both direct and indirect ...
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ژورنال
عنوان ژورنال: Science and Technology for the Built Environment
سال: 2020
ISSN: 2374-4731,2374-474X
DOI: 10.1080/23744731.2020.1746486