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- W2750797524 endingPage "286" @default.
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- W2750797524 abstract "The variable-geometry ejector (VGE) is feasible for unstable heat-source utilization; the ejector can be adjusted to its design point to obtain high efficiency. Moreover, as the adjustable nozzle in the VGE significantly affects the performance of the ejector, a theoretical model is necessary to evaluate VGE performance. In this study, a two-dimensional theoretical model was proposed based on an adjustable-nozzle theory. Method of characteristics was employed to accurately predict the driving-flow development in the mixing section. In addition, the suction-flow velocity distribution on the effective area was considered. The proposed model was validated by employing the data from literature and additional experimental data obtained from a VGE test setup using R134a. The validation result shows that the proposed model predicts the ejector performance accurately; moreover, the model is more adaptive while the nozzle configuration changes. The theoretical model, proposed herein, is practical for the design and application of the VGE." @default.
- W2750797524 created "2017-09-15" @default.
- W2750797524 creator A5002890399 @default.
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- W2750797524 date "2017-12-01" @default.
- W2750797524 modified "2023-10-02" @default.
- W2750797524 title "Ejector performance analysis under overall operating conditions considering adjustable nozzle structure" @default.
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- W2750797524 doi "https://doi.org/10.1016/j.ijrefrig.2017.08.005" @default.
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