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A novel solar assisted vacuum thermionic generator-absorption refrigerator cogeneration system producing electricity and cooling

机译：一种新型太阳能辅助真空热防发生器吸收冰箱热电联产系统，生产电力和冷却

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摘要

A novel solar assisted cogeneration system composed of a parabolic dish collector (PDC), a vacuum thermionic generator (VTIG), and an absorption refrigerator (APR) is proposed, in which the APR harvests the rejected heat from the VTIG for further cooling production. The equivalent power output and efficiency of the proposed system are obtained by considering various irreversible losses including radiation and convection heat losses of the PDC, radiation heat losses between the cathode and anode of the VTIG, heat transfer irreversibility, irreversible effects inside the working fluid of the APR. The maximum attainable efficiency increases from 17.21% to 27.06% as the bottoming APR is hybridized into the system. Meanwhile, the corresponding power density gains a 13.47% increase. Comprehensive sensitivity analyses are conducted to examine the dependence of the proposed system performance on some decisive design parameters and operating conditions such as absorber temperature of the solar collector, solar concentration ratio, solar irradiance, work function and anodic temperature of the VTIG, heat transfer area, heat transfer coefficient, and internal irreversibility factor of APR. The obtained results may provide some new insights into development and operation of such a solar powered cogeneration system.
机译：提出了一种由抛物线碟收集器（PDC），真空热原发生剂（VTIG）和吸收冰箱（APR）组成的新型太阳能辅助热电联产系统，其中APR收获来自VTIG的被拒绝的热量以进一步冷却生产。所提出的系统的等效功率输出和效率是通过考虑包括PDC的辐射和对流热损失的各种不可逆转的损失，在VTIG的阴极和阳极之间的辐射热损失，热传递不可逆转性，在工作流体内的不可逆效应之间4月份。随着底部的APR与系统杂交，最大可达到的效率从17.21％增加到27.06％。同时，相应的功率密度增益增加13.47％。进行综合敏感性分析，以检查所提出的系统性能对一些决定性设计参数和操作条件的依赖，如太阳能收集器的吸收温度，太阳能浓缩比，太阳辐照度，工作功能和VTIG的阳极温度，传热区域，传热系数和4月的内部不可逆因子。所获得的结果可以为这种太阳能发电系统的开发和运行提供一些新的见解。

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