conversion efficiency remains constant as mean solar collector temperature changes
when solar irradiance is 300 W/m
2 . Thus, maximum energy conversion efficiency in
KCS-11 is obtained with mean solar collector temperature t sc ¼ 60
C when average
annual solar irradiance (W/m
2
) ranges from 0 to 300 (Fig. 9.6).
Solar thermal power generation potential in China, Japan, and South Korea is
given in Table 9.4. The potential supply of solar thermal power generation, based on
Fig. 9.4 Relationship between solar irradiance and solar collector efficiency when t 0 ¼ 20
C and
t sc ¼ 90
C
Fig. 9.5 Relationship between mean solar collector temperature and energy conversion efficiency
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