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首页> 外文期刊>International Journal of Refrigeration >Modeling of a semi-hermetic CO_2 reciprocating compressor including lubrication submodels for piston rings and bearings
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Modeling of a semi-hermetic CO_2 reciprocating compressor including lubrication submodels for piston rings and bearings

机译：半封闭式CO_2往复式压缩机的模型，包括用于活塞环和轴承的润滑子模型

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摘要

A comprehensive model for a semi-hermetic CO_2 reciprocating compressor is presented. This comprehensive model is composed of three main sub-models simulating the geometry and kinematics, the compression process, and frictional power loss. Valve and leakage sub-models are included in the compression process model. The frictional power loss model includes the friction at the bearings and between the piston ring and cylinder wall. The predicted results of the comprehensive model are validated using external compressor performance measurements of compressor input power and mass flow rate. The mass flow rate and compressor input power are predicted to within 4.03% and 6.43%mean absolute error, respectively, compared to the experimental datum. Additionally, a parametric study is presented which investigates compressor performance as a function of the stroke-to-bore ratio.
机译：提出了一种半封闭式CO_2往复式压缩机的综合模型。该综合模型由三个主要子模型组成，这些子模型模拟了几何和运动学，压缩过程和摩擦功率损耗。阀门和泄漏子模型包含在压缩过程模型中。摩擦功率损耗模型包括轴承处以及活塞环与气缸壁之间的摩擦。使用外部压缩机对压缩机输入功率和质量流率的性能测量，可以验证综合模型的预测结果。与实验数据相比，预测质量流量和压缩机输入功率分别在4.03％和6.43％的平均绝对误差范围内。此外，还进行了参数研究，研究了压缩机性能与冲程/缸径比的函数。

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