有机朗肯循环双蒸发器冷却系统(火用)分析参数研究

IF 0.6 4区 工程技术 Q4 MECHANICS
Mechanika Pub Date : 2023-06-17 DOI:10.5755/j02.mech.32652
Rabah Touaibi, Hasan Köten
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引用次数: 0

摘要

本研究基于由有机朗肯和双蒸发器冷却循环组成的联合循环的能量和火用分析进行了参数研究。所提供的机械动力为具有两个蒸发器的机械压缩制冷循环提供动力。研究了运行温度的影响,包括有机朗肯循环蒸发器温度的影响和双蒸发器冷却循环蒸发器温度对蒸发器温度的作用;在这种情况下,使用三种有机流体,例如R134a、R290和R600。结果表明,使用R600作为两种循环的工作流体,可以提高系统的性能,组合系统的能效从27.10%提高到40.22%。双蒸发器冷却循环的性能因子从第一蒸发器的3.25提高到3.29,从第二蒸发器的2.07提高到4.28。此外,还注意到,双蒸发器冷却循环的火用效率从第一个蒸发器的40.03%下降到30.18%,第二个蒸发器的32.47%上升到38.82%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Parametric study on the exergy analysis of a dual evaporator cooling cy-cle powered by the organic Rankine cycle
This study conducts a parametric study based on the energy and exergy analysis of a combined cycle composed of an organic Rankine and dual evaporator cooling cycles. The mechanical power supplied provides the mechanical compression refrigeration cycle with two evaporators. The influence of operating temperature, including the impact of the evaporator temperature of the organic Rankine cycle and the effect of dual evaporator cooling cycle evaporator temperature, were investigated; in this case, three organic fluids were employed such as R134a, R290, and R600. The results indicate that using R600 as the working fluid for both cycles enhance the system performance, and the energy efficiency of the combined system grows from 27.10 % to 40.22 %.The performance factor of the dual evaporator cooling cycle increases from 3.25 to 3.29 for the evaporating temperature of the first evaporator and from 2.07 to 4.28 for the second evaporator. Moreover, it is also noted that the exergy efficiency of the dual evaporator cooling cycle decreased from 40.03 % to 30.18 % for the first evaporator and increased by 32.47 % to 38.82 % for the second evaporator.
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来源期刊
Mechanika
Mechanika 物理-力学
CiteScore
1.30
自引率
0.00%
发文量
50
审稿时长
3 months
期刊介绍: The journal is publishing scientific papers dealing with the following problems: Mechanics of Solid Bodies; Mechanics of Fluids and Gases; Dynamics of Mechanical Systems; Design and Optimization of Mechanical Systems; Mechanical Technologies.
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