The gas pulsation in reciprocating compressor piping systems would result in piping system vibration. Experiments and numerical simulation were performed to study the gas pulsation at the key positions of a piping system with two reciprocating compressors operating together. The fluid dynamics of the piping system was modeled with appropriate boundary conditions proposed. Both the laminar and turbulent flow models were employed to analyze the gas pulsation in the piping system. The comparison between the numerical results and the test data shows that the turbulence flow model is more reasonable than the laminar flow model. Further
three different turbulence models were used to investigate the gas pulsation characteristics and pressure non-uniformity. By comparing the numerical results with the experimental data
it is indicated that the standard k-ε turbulence model is most effective in simulating the gas pulsation of the piping system
and it would be suitable to the research on the influences among different pipelines and gas pulsation change with compressor speed in different pipelines when two reciprocating compressors operate together at different speeds.
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西安交通大学能源与动力工程学院,710049,西安School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
西安交通大学热流科学与工程教育部重点实验室,710049,西安Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China