Optimisation of a Novel Resorption Cogeneration Using Mass and Heat Recovery
Optimisation of a Novel Resorption Cogeneration Using Mass and Heat Recovery
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DOI：
10.1016/j.egypro.2014.11.1032
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Yiji Lu;Huashan Bao;Ye Yuan;Yaodong Wang;Liwei Wang;A. Roskilly
中科院分区：
文献类型：
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作者：
Yiji Lu;Huashan Bao;Ye Yuan;Yaodong Wang;Liwei Wang;A. Roskilly
本文提出了一种优化的吸收热电联产与稳定单元和有效的质量和热量回收，以进一步提高性能的原始吸收热电联产首先提出的Liwei Wang等。它结合了氨吸收技术和膨胀机，利用低品位的热量，如太阳能或废热连续和同时生产的制冷和电力。理论证明，在相同工况下，与戈斯瓦米循环相比，该循环的总火用效率可提高40%~ 60%。在这项工作中，缓冲器被设计为放置在膨胀机之前，以减轻急剧变化的反应速率，并安排两组再吸收循环，以克服化学吸附的间歇性能。基于热力学第一和第二定律，使用工程方程求解器研究了循环。在不同的工作条件下，分析了12个盐络合物候选物的再吸收工作对。在373 ~ 473 K的驱动温度范围内，通过能量分析和火用分析确定了理想工质对。
The paper proposed an optimised resorption cogeneration with a stabilisation unit and effective mass and heat recovery to further improve the performance of the original resorption cogeneration first proposed by Liwei Wang et al. It combines the ammonia resorption technology and expansion machine to utilise low grade heat such as solar energy or waste heat for continuous and simultaneous production of refrigeration and electricity. It has been theoretically proved competent to improve the overall exergy efficiency by 40%-60% compared with Goswami cycle under the same working conditions. In this work, a buffer was designed to place before the expansion machine to mitigate the dramatically varying reaction rate, and two sets of resorption cycle were arranged to overcome the intermittent performance of the chemisorption. The cycle was investigated based on the first and second law of thermodynamics using Engineering Equation Solver. Twelve resorption working pairs of salt complex candidates were analysed under different working conditions. The energy and exergy analysis identified the ideal working pair among the chosen working pairs under the driven temperature from 373K to 473K.