中小型太阳能光合生物制氢系统的火用分析

利用热力学第二定律,采用白箱分析模型对实验室所研发的太阳能光合生物制氢系统进行了火用分析,得出该系统的产氢量较少,火用效率仅为24.4%。其中光能火用损最大,占耗散火用损的64.4%;并针对系统中用能的薄弱环节,即对火用损较大的光能火用损分析了影响光能转化的因素,并提出了相应的解决方法,为整个系统内部设备的改进提供方向,以提高系统有效能的利用,为推进光合生物制氢技术的工业化提供了科学参考。

Exergy Analysis of Photosynthetic Biological Hydrogen Production System in Midsize

Using the second law of thermodynamics the exergy photosynthetic biological hydrogen production system was analyzed by a white-box model.The results show that the yield of hydrogen was less and the exergy efficiencies of the system is 24.4%, and light losing is the biggest one in the total exergy losing which account for 64.4%. Factors that affect the light conversion efficiency was analyzed in the weak links of the system and the corresponding solutions were proposed. The aspects in system and the utilization of the effective energy were improved and a science reference for the process of the industrialization in the photosynthetic biological hydrogen production system were provided.