Design of mixed refrigerant cycle for low temperature processes - Part II: Optimal Arrangement

Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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NICEC14_441

تاریخ نمایه سازی: 3 آذر 1391

Abstract:

A refrigeration cycle is a chain of various equipment including compressors, condensers, evaporators and expansion devices each of which takes on a particular thermodynamic process duty in cycle thateventually result in production of the required refrigeration. The results of optimized mixed refrigerantcycles (MRCs) in Part I show that configuration of MRCs is an effective parameter in power consumption. In spite of simplicity of MRCs machinery configuration in comparison with aconventional cascade cycle, it is possible to imagine different configurations, providing the processrequired refrigeration, for these cycles. But the question here is how to find a configuration taking advantage of the existing complicated interactions between low temperature process and refrigeration cycle so that the maximum efficiency and the best functionality are guaranteed. In this paper, based on the success of the systematic method proposed in part I for the optimal selection of refrigerant composition and operating pressures, the method is extended to give optimal arrangement of the cyclecomponents. The procedure is demonstrated using a case study of design of MRCs for a typical olefin plant

Authors

Jahanfar Khaleghinia

Department of Mechanical Engineering, Nour Branch , Islamic Azad University, Nour, Iran

Mostafa Mafi

Department of Mechanical Engineering Imam Khomeini International University Qazvin, Iran

Bahram Ghorbani

Energy Integration Institute Department of Energy System Engineering K.N.Toosi University, Tehran, Iran

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