Methods development for measuring and classifying flammability/combustibility of refrigerants. Final report

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Because of concerns for the effect that chlorofluorocarbon (CFC) fluids currently in use as refrigerants have on the environment, the refrigeration industry is considering the use of natural refrigerants, many of which are potentially flammable. In some cases, these flammable fluids may result in the least environmental damage when considering ozone depletion, global warming, efficiency, and photochemical reactivity. Many potentially flammable fluids have been proven to be effective when used either by themselves or as a part of a binary or ternary mixture. However, despite favorable initial test results, these fluids may not be acceptable to the general public if ... continued below

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Medium: P; Size: 83 p.

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Heinonen, E.W.; Tapscott, R.E. & Crawford, F.R. December 1, 1994.

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Description

Because of concerns for the effect that chlorofluorocarbon (CFC) fluids currently in use as refrigerants have on the environment, the refrigeration industry is considering the use of natural refrigerants, many of which are potentially flammable. In some cases, these flammable fluids may result in the least environmental damage when considering ozone depletion, global warming, efficiency, and photochemical reactivity. Many potentially flammable fluids have been proven to be effective when used either by themselves or as a part of a binary or ternary mixture. However, despite favorable initial test results, these fluids may not be acceptable to the general public if questions of safety cannot be adequately addressed. Significant research is being conducted to investigate the flammability of these materials. The purpose of this project is to experimentally determine the impact and variability of eleven different parameters which may affect flammability and/or combustibility of refrigerants and refrigerant blends, as a function of composition and test conditions, and to develop a better understanding of methods and conditions to measure the flammability of refrigerants. The refrigerants used in this study are being considered as new refrigerants and reviewed published data on these materials is scarce. The data contained herein should not be considered complete and should be used only to make relative comparisons of the impacts of the test parameters, not to represent the flammability characteristics of the materials. This report documents Task 3 of the test program. During Task 1, technical literature was thoroughly reviewed and a database of available documents was constructed. During Task 2, the test plan for this task was written. The goals of Task 3 are to investigate the flammability characteristics of selected blends of refrigerants R32, R134a, and R125 using an existing explosion sphere and a newly-constructed ASTM E681 apparatus.

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Medium: P; Size: 83 p.

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OSTI as DE96000962

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  • Other Information: PBD: Dec 1994

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  • Other: DE96000962
  • Report No.: DOE/CE/23810--50
  • Grant Number: FG02-91CE23810
  • DOI: 10.2172/114574 | External Link
  • Office of Scientific & Technical Information Report Number: 114574
  • Archival Resource Key: ark:/67531/metadc618579

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  • December 1, 1994

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Dec. 2, 2015, 6:45 p.m.

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Heinonen, E.W.; Tapscott, R.E. & Crawford, F.R. Methods development for measuring and classifying flammability/combustibility of refrigerants. Final report, report, December 1, 1994; United States. (digital.library.unt.edu/ark:/67531/metadc618579/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.