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In-tube condensation performance of refrigerants considering penalization terms (exergy losses) for heat transfer and pressure drop

机译:考虑到传热和压降的不利因素(制冷量损失)的制冷剂的管内冷凝性能

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摘要

This paper presents Performance Evaluation Criteria (PEC) dubbed Penalty Factor {PF) and Total Temperature Penalization (TTP) for condensation inside tubes. This general methodology allows for the ranking of refrigerants for condenser applications based on their heat transfer potentials. Among halocarbons, higher pressure fluids have lower PF and TTP values than medium and lower pressure refrigerants, with ammonia outperforming all refrigerants. These PEC are also used to develop simple theoretical models for the optimization of condenser refrigerant circuitry. As examples, two condenser optimization cases are considered, with the theoretical predictions comparing favorably with simulation results from a detailed heat exchanger model.
机译:本文介绍了管内冷凝的性能评估标准(PEC),称为罚分因子(PF)和总温度罚分(TTP)。这种通用的方法可以根据冷凝器的传热潜力对冷凝器应用的制冷剂进行排名。在卤代烃中,高压流体比中低压制冷剂的PF和TTP值低,而氨的性能优于所有制冷剂。这些PEC还用于开发用于优化冷凝器制冷剂回路的简单理论模型。作为示例,考虑了两种冷凝器优化案例,其理论预测与详细的热交换器模型的模拟结果相比具有优势。

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