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首页> 外文期刊>International journal of numerical methods for heat & fluid flow >A multi-factor methodology for evaluation and optimization of plate-fin recuperators for micro gas turbine applications considering payback period as universal objective function
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A multi-factor methodology for evaluation and optimization of plate-fin recuperators for micro gas turbine applications considering payback period as universal objective function

机译：考虑投资回收期作为通用目标函数的微型燃气轮机应用的基础燃料恢复器评估与优化的多因素方法

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Purpose - Because of the appreciable application of heat recovery systems for the increment of overall efficiency of micro gas turbines, promising evaluation and optimization are crucial. This paper aims to propose a multi-factor theoretical methodology for analysis, optimization and comparison of potential plate-fin recuperators incorporated into micro gas turbines. Energetic, exergetic, economic and environmental factors are covered. Design/methodology/approach - To demonstrate applicability and reliability of the methodology, detailed thermo-hydraulic analysis, sensitivity analysis and optimization are conducted on the recuperators with louver and offset-strip fins using a genetic algorithm. To assess the relationship between investment cost and profit for the recuperated systems, payback period (PBP), which incorporates all the factors is used as the universal objective function. To compare the performance of the recuperated and non-recuperated systems, exergy efficiency, exergy destruction and corresponding cost rate, fuel consumption and environmental damage cost rates, capital and operational cost rates and acquired profit rates are determined. Findings - Based on the results, optimal PBP of the louvered-fin recuperator (147 days) is slightly lower than that with offset-strip fins (153 days). The highest profit rate is acquired by reduction of exergy destruction cost rate and corresponding decrements for louver and offset-strip fins are 2.3 and 3.9 times compared to simple cycle, respectively. Originality/value - This mathematical study, for the first time, focuses on introducing a reliable methodology, which covers energetic, exergetic, economic and environmental points of view beneficial for design and selection of efficient plate-fin recuperators for micro gas turbine applications.
机译：目的 - 由于热回收系统的可观应用，以增加微型燃气轮机的整体效率，所希望的评估和优化是至关重要的。本文旨在提出一种多因素理论方法，用于分析，优化和掺入微型燃气轮机中的潜在板鳍核矿蓄电池的分析和比较。涵盖了精力充沛，锻炼，经济和环境因素。设计/方法/方法 - 以证明方法的适用性和可靠性，使用遗传算法对挖掘机和偏移剥离的恢复器进行了详细的热液压分析，灵敏度分析和优化。为了评估投资成本与恢复系统的利润之间的关系，将回收期（PBP）纳入所有因素作为普遍目标函数。为了比较恢复和未恢复的系统的性能，确定效率，高度销毁和相应的成本率，燃料消耗和环境损害成本率，资本和运营成本率和获得的利润率。调查结果 - 基于结果，百叶窗恢复器（147天）的最佳PBP略低于偏移 - 带翅片（153天）。通过减少漏洞破坏成本率获得的最高利润率，并且百叶窗和偏移 - 带鳍片的相应减少分别与简单的循环相比为2.3和3.9次。原创性/值 - 这项数学研究首次侧重于引入可靠的方法，这些方法涵盖了有利于微型燃气涡轮机应用的有效的设计和选择和选择的精力充沛，前进，经济和环境观点。

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