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THE AUTHORS PRESENT THE MEASUREMENT METHOD BASED ON THE DYNAMIC DIFFUSION OF A LASER BEAM ; THE FLUID BEING UNDER A THERMODYNAMIC EQUILIBRIUM STATE, THERMAL DIFFUSIVITY IS DEDUCED FROM TRANSPORT MECHANISMS, AT THE MICROSCOPIC STATE. INDEED, MICROSCOPIC DENSITY FLUCTUATIONS ARE PERMANENTLY PRODUCED INDUCING DIFFUSION -IN ALL DIRECTIONS -OF THE LASER BEAM. THE RELAXATION TIME OF THESE FLUCTUATIONS PROVIDES DATA ON THERMAL DIFFUSIVITY, FROM WHIC H TC THE AUTHORS HAVE SYSTEMATICALLY STUDIED: R22, R13, R13B1, R23, R744, NITROUS OXIDE AS WELL AS 3 MIXTURES. THE MEASUREMENTS CAN BE INTERPRETED BY A SET OF EQUATIONS.
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Details
- Original title: THERMAL DIFFUSIVITY OF REFRIGERANTS.
- Record ID : 1991-1033
- Languages: English
- Source: Thermophysical properties of pure substances and mixtures for refrigeration.
- Publication date: 1990
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
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Themes:
HCFCs;
HFCs;
CO2;
Other refrigerants;
Blends - Keywords: Thermal property; Thermal conductivity; R23; Halogen; Measurement; R22; R13b1; R13; Nitrous oxide; Zeotropic mixture; Refrigerant; Thermal diffusivity; CO2
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Performance evaluation of chlorine free zeotrop...
- Author(s) : PANNOCK J., DIDION D. A., RADERMACHER R.
- Date : 1992/07/14
- Languages : English
View record
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THERMODYNAMIC BEHAVIOUR OF THE VAPOUR-LIQUID CO...
- Author(s) : HIGASHI Y., KABATA Y., WATANABE K.
- Date : 1987/08/24
- Languages : English
- Source: Development in refrigeration, refrigeration for development. Proceedings of the XVIIth international Congress of Refrigeration.
- Formats : PDF
View record
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THE APPLICATION OF NON-AZEOTROPIC REFRIGERANT M...
- Author(s) : KUEVER M., KRUSE H.
- Date : 1986/08/05
- Languages : English
- Source: Progress in the design and construction of refrigeration systems.
- Formats : PDF
View record
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LIQUID DENSITY CORRELATION FOR BINARY REFRIGERA...
- Author(s) : HIGASHI Y., OKADA M.
- Date : 1990
- Languages : English
- Source: Thermophysical properties of pure substances and mixtures for refrigeration.
- Formats : PDF
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THE USE OF MIXED REFRIGERANTS IN AIR TO AIR HEA...
- Author(s) : COOPER W. D.
- Date : 1982
- Languages : English
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