MODELING OF PRESSURE PULSATIONS FOR LDPE RECIPROCATING COMPRESSORS AND INTERACTION WITH MECHANICAL SYSTEM

机译：LDPE往复式压缩机的压力脉动建模及其与机械系统的相互作用

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The combination of booster-primary and hyper compressors reaches very high pressures in Low Density Polyethylene Plants. Pressure and flow pulsations due to the unsteady flow generate an acoustic energy that interacts with the mechanical system of the plant, causing mechanical vibrations. Pressure pulsation and vibration control on relatively high pressure piping is necessary to prevent failures caused by cyclic stresses due to both internal pressure fluctuations and vibrations generated by the compressor. To increase the compressor performance, safety and reliability designers require advanced methods of simulation to evaluate piping and compressor behavior during the initial stage of the project. The paper will investigate the modeling of the pulsation with the influence of fluid-dynamic aspect related to the gas and the relevant system interaction.

机译：在低密度聚乙烯工厂中，增压主压缩机和超级压缩机的组合可达到很高的压力。由于流量不稳定而产生的压力和流量脉动会产生与工厂机械系统相互作用的声能，从而引起机械振动。为了防止由于内部压力波动和压缩机产生的振动所引起的循环应力导致的故障，必须在相对高压的管道上进行压力脉动和振动控制。为了提高压缩机性能，安全性和可靠性设计人员需要高级的仿真方法来评估项目初期的管道和压缩机性能。本文将研究与气体相关的流体动力学方面以及相关系统相互作用对脉动建模的影响。

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来源
《7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.1: Advanced Energy Systems; Advanced Heat Transfer in Engineering Systems; ...》|2004年|P.945-952|共8页
会议地点 Manchester(GB)
作者
Enzo Giacomelli; Marco Passeri; Stefano Giusti; Fabrizio Zagli; Stefano Generosi;
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GE Energy, Oil Gas Nuovo Pignone Global Services Via Felice Matteucci 2, 50127 Florence, Italy;

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原文格式 PDF
正文语种 eng
中图分类机械设计、计算与制图;
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MODELING OF PRESSURE PULSATIONS FOR LDPE RECIPROCATING COMPRESSORS AND INTERACTION WITH MECHANICAL SYSTEM

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