Performance characteristics of a low concentrated photovoltaic–thermoelectric hybrid power generation device
Performance characteristics of a low concentrated photovoltaic–thermoelectric hybrid power generation device
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DOI：
10.1016/j.ijthermalsci.2013.10.013
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发表时间：
2014-03
影响因子：
4.5
通讯作者：
Tianjun Liao;Bihong Lin;Zhimin Yang
中科院分区：
文献类型：
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作者：
Tianjun Liao;Bihong Lin;Zhimin Yang
建立了低聚光光伏组件与温差发电器混合发电装置的理论模型。基于非平衡态热力学理论和能量守恒定律，推导了混合动力装置的效率和输出功率表达式，并对混合动力装置的工作特性进行了详细的分析和讨论。数值计算了混合动力装置的最大输出功率，并优化确定了CPV和TEG的负载电阻。分析了CPV与TEG之间的导热系数、CPV电流、太阳辐照度、聚光比和TEG品质因数等因素对混合器件输出功率的影响。研究发现，对于一些重要的参数，存在一定的优化准则。所得结果可为典型不可逆CPV-TEG混合装置及类似混合系统的优化设计和性能改进提供参考。
A theoretical model of a hybrid power generation device consisting of a low concentrated photovoltaic (CPV) module and a thermoelectric generator (TEG) is established in this paper. The expressions for the efficiency and power output of the hybrid device are derived and the performance characteristics of the device are presented and discussed in detail, based on non-equilibrium thermodynamics theory and law of conservation of energy. The maximum power output of the hybrid device is calculated numerically and the load electric resistances of the CPV and TEG are determined optimally. The influences of several important factors such as the thermal conductance between the CPV and the TEG, the current of the CPV, the solar irradiation, the concentrating ratio and the figure of merit of the TEG on the power output of the hybrid device are analyzed. It is found that there exist certain optimum criteria for some important parameters. The results obtained here may provide some useful criteria for the optimal design and performance improvements of a typical irreversible CPV–TEG hybrid device and other similar hybrid system as well.