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本文在建立单轴跟踪槽式太阳能集热器模型的基础上,着重分析了集热装置的热效率和火用效率,并以此为基础确定各个因素,主要是槽式集热器的聚光比、光照强度、集热流体的温升对集热效率和火用效率的影响。结果表明:随着集热器聚光比和太阳光光照强度的增加,集热效率和火用效率先是急剧增加,然后逐渐趋于平缓;随着的集热流体温升的增加,集热效率逐渐减小,聚光比和光照强度越大,减小的程度越缓慢。
Based on the establishment of a single-axis tracking trough solar collector model, the thermal efficiency and exergy efficiency of the collector are emphatically analyzed. Based on this, various factors are determined, mainly the concentrating ratio of the trough collector , Light intensity, temperature rise of collector fluid on collector efficiency and exergy efficiency. The results show that the collector efficiency and the exergy efficiency firstly increase sharply with the increase of concentrator ratio and sunlight intensity, and then gradually decrease. With the increase of collector temperature, the collector efficiency decreases gradually Small, concentrated light intensity and light intensity, the more the degree of reduction.