Experimental Investigation of Throttling Process Affected by Gas Impurities

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F09%3A00332847" target="_blank" >RIV/61388998:_____/09:00332847 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/09:00213266
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Experimental Investigation of Throttling Process Affected by Gas Impurities
Original language description
The throttling process in a small-diameter tube ? capillary tube ? was experimentally investigated in this study. A special testing capillary tube equipped with precise temperature and pressure sensors was used to describe the effect of gas impurities, i.e. non-condensing gases (nitrogen in our case), on the flow of throttled refrigerant R218. Total pressure at the onset of vaporization was increased by partial pressure of contaminating gas. Therefore, the two-phase flow of gas-contaminated refrigerantstarted to be generated notably earlier than in the case of pure refrigerant flow. Mass flow rate of refrigerant delivered through capillary tube decreased even by 20 % in some cases. The experimental data were compared with a numerical simulation of pure refrigerant flow in capillary tube.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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