Numerical simulation of gas-contaminated refrigerant two-phase flow through
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F10%3A00346592" target="_blank" >RIV/61388998:_____/10:00346592 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Numerical simulation of gas-contaminated refrigerant two-phase flow through
Original language description
An unfavorable effect of gas impurities on the throttling process inside a capillary tube has been studied. A special testing capillary tube has been used for an experimental investigation of the capillary flow of a fluorocarbon refrigerant R218 contaminated by nitrogen. The gas impurities significantly affected the throttling process, since the two-phase flow started notably earlier than in the case of pure refrigerant flow. Moreover, the gas contamination resulted in a decreased mass flow rate. A comprehensive numerical model has been developed to simulate the capillary flow of gas-contaminated refrigerant. The model takes into account two coincident thermodynamic events: the throttling process of the refrigerant and the gradual release of the dissolved gas impurities from the refrigerant liquid phase. The model considers adiabatic, thermodynamically equilibrated capillary flow with homogeneous two-phase flow. The numerical simulation is in good agreement with our experimental data.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BJ - Thermodynamics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA101%2F09%2F1633" target="_blank" >GA101/09/1633: Development and application of new experimental methods to measure heterogeneous particles in superheated steam</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Heat and Mass Transfer
ISSN
0017-9310
e-ISSN
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Volume of the periodical
53
Issue of the periodical within the volume
23-24
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
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UT code for WoS article
000282155900043
EID of the result in the Scopus database
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