reciprocating compressor 1d thermofluid dynamic simulation: problems and comparison with experimental data
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2012
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Abstract
The authors here extend a 0D-1D thermofluid dynamic simulation approach to describe the phenomena internal to the volumetric machines, reproducing pressure waves’ propagation in the ducts. This paper reports the first analysis of these phenomena in a reciprocating compressor. The first part presents a detailed experimental analysis of an open-type reciprocating compressor equipped with internal sensors. The second part describes a 0D-1D thermofluid dynamic simulation of the compressor. Comparison of computed and measured values of discharge mass flow rate shows a good agreement between results for compression ratio 𝛽<5. Then, to improve the model fitting at higher pressures, a new scheme has been developed to predict the blow-by through the ring pack volumes. This model is based on a series of volumes and links which simulate the rings’ motions inside the grooves, while the ring dynamics are imposed using data from the literature about blow-by in internal combustion engines. The validation is obtained comparing experimental and computing data of the two cylinder engine blowby. After the validation, a new comparison of mass flow rate on the compressor shows a better fitting of the curves at higher compression ratio.
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| Reference Key |
gimelli2012internationalreciprocating
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|---|---|
| Authors | ;A. Gimelli;A. Rapicano;F. Barba;O. Pennacchia |
| Journal | ACS omega |
| Year | 2012 |
| DOI |
10.1155/2012/564275
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| URL | |
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