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首页> 外文期刊>Journal of Energy Engineering >Thermodynamic and Exergoeconomic Evaluation of Heat Recovery of Gas Refinery Steam Network Using Organic Rankine Cycle and Kalina Cycle with Different Fluids
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Thermodynamic and Exergoeconomic Evaluation of Heat Recovery of Gas Refinery Steam Network Using Organic Rankine Cycle and Kalina Cycle with Different Fluids

机译：利用有机朗肯循环和卡利纳循环对不同流体进行精炼气网热回收的热力学和经济性评价

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摘要

This paper investigated the optimal use of surplus low-pressure steam in the Khangiran gas refinery, Iran. To manage energy and reduce surplus steam waste for heat sources at 150 degrees C, three scenarios were proposed to use this energy. In these scenarios, while considering the thermodynamic conditions of steam, it was proposed to use an organic Rankine cycle with pure and mixture working fluids and a Kalina cycle, which is capable of producing power from low-temperature sources. Finally, all the scenarios were evaluated in terms of energy, exergy and exergoeconomic, and optimum conditions were specified. The results indicated that the organic Rankine cycle with isobutane as the working fluid had the best performance with a power output of 249.8 kW. Moreover, the optimal binary mixture was isopentane/cyclohexane (0.85-0.15, by mole fraction) and the power output was 279.6 kW. When using mixing fluids, the net power of the system was observed to increase by 12%. The results also revealed that the best ternary mixture was isohexane/R245fa/R365mfc (0.17-0.33-0.50, by mole fraction) and that the related net power output was 283.7 kW, which was higher than that of the binary mixture.
机译：本文研究了伊朗Khangiran天然气精炼厂中多余低压蒸汽的最佳利用。为了管理能量并减少150摄氏度时热源的多余蒸汽浪费，提出了三种使用该能量的方案。在这些情况下，考虑到蒸汽的热力学条件，建议使用有机朗肯循环，纯净的和混合的工作流体以及卡利纳循环，该循环能够从低温源发电。最后，对所有情景进行了能源，火用和经济经济评估，并确定了最佳条件。结果表明，以异丁烷为工作液的有机朗肯循环具有最佳性能，输出功率为249.8 kW。此外，最佳的二元混合物是异戊烷/环己烷（0.85-0.15，以摩尔分数计），并且功率输出为279.6kW。当使用混合液时，系统的净功率增加了12％。结果还表明，最佳三元混合物为异己烷/ R245fa / R365mfc（以摩尔分数计为0.17-0.33-0.50），相关的净功率输出为283.7 kW，高于二元混合物的净功率。

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  • 来源
    《Journal of Energy Engineering》 |2020年第3期|05020002.1-05020002.12|共12页
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  • 作者单位

    Islamic Azad Univ Cent Tehran Branch Fac Engn Dept Mech Engn Tehran 1469669191 Iran;

    Univ Qom Dept Mech Engn Qom 3716146611 Iran|Univ Qom Environm Res Ctr Qom 3716146611 Iran;

    KN Toosi Univ Technol Fac Mech Engn Tehran 1991943344 Iran;

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  • 正文语种 eng
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  • 关键词

    Steam network; Organic Rankine cycle; Kalina cycle; Zeotropic mixture; Thermoeconomic;

    机译：蒸汽网络;有机朗肯循环;卡利纳循环共沸混合物;热经济;

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