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Reciprocating Compressor 1D Thermofluid Dynamic Simulation: Problems and Comparison with Experimental Data.
- Source :
-
International Journal of Rotating Machinery . 2012, p1-13. 13p. - Publication Year :
- 2012
-
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 ß < 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1023621X
- Database :
- Academic Search Index
- Journal :
- International Journal of Rotating Machinery
- Publication Type :
- Academic Journal
- Accession number :
- 86828370
- Full Text :
- https://doi.org/10.1155/2012/564275