A Method for Calculating the Pressure Pulsations Taking Dynamic Compressor-piping Interaction into Consideration : Part 1 Formulation and Experiments in Simple Piping Systems

概要

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Large plusations cause engineering problems such as piping vibrations etc., which may impede plant operation. Therefore a pulsation study should by carried out during the design stage and the results should be incorporated into the piping design in order to minimize pulsations. In this paper, a method of digital simulation which is equivalent to analog simulation specified in the API standard is proposed . The digital simulation method which takes dynamic interaction is composed of interactive two models which are Compressor Simulation Model for calculating the pressure and temperature in the cylinder etc., and Piping Model for calculating pulsations using the application of model analysis method. Experiments were carried out to verify the adequacy of the digital simulation method. Comparisons between the calculations and experimental data showed that the results agreed and that accurate predictions could be made using the digital simulation.
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