Theoretical and Experimental Investigations on the Radial and Axialleakages within a Rotary Vane Expander

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F19%3A00334241" target="_blank" >RIV/68407700:21720/19:00334241 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.energy.2019.116097" target="_blank" >https://doi.org/10.1016/j.energy.2019.116097</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.energy.2019.116097" target="_blank" >10.1016/j.energy.2019.116097</a>

Result language
angličtina
Original language name
Theoretical and Experimental Investigations on the Radial and Axialleakages within a Rotary Vane Expander
Original language description
Rotary vane expander (RVE) is a perspective type of a volumetric expander for small series manufacturing due to its simple geometry and low manufacturing costs. Performance of this type of expander is usually worse in comparison with other volumetric expanders but it can be improved if we understand well the phenomena that occur during expansion within the vane expander. This work provides a theoretical and experimental analysis of the influence of various leakage pathways on the behaviour of a RVE. The RVE used in this work has been specifically modified for the possibility of adjusting the axial and radial clearances. Experimental data for the both clearances ranging from þ0 to þ0.5 mm were used to set up a 1D mathematical model, which, provides accuracy of parameter prediction within ±5%. Such model can be further used for optimization and design of RVE. In this paper, the model was used to analyse the effect of reducing manufacturing tolerances on the expander parameters. Analyses are performed for constant pressure difference (common in literature), as well as for the regime of constant heat input of the thermodynamic cycle (better reflects the conditions of the real expander operation and its effect to the entire cycle).
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20704 - Energy and fuels

Project
<a href="/en/project/LO1605" target="_blank" >LO1605: University Centre for Energy Efficient Buildings – Sustainability Phase</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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