Page 50 - Design of Solar Thermal Power Plants

1.2 BRIEF INTRODUCTION TO SOLAR THERMAL POWER GENERATION 43

kw/m 2
80
70
300
60
Position /mm 200 50 Radiation flux density /(kw/m 2 )

40

30
100
20

0
100 200 300 400 500
Position /mm
FIGURE 1.29 Energy flux distribution of a solar concentrator on a target plane located
20 cm from focal point.

kw/m 2
0 350
Center of the spot 300
100
250
Position /mm 200 200 Radiation flux density /(kw/m 2 )

150

100
300
50
90% power circle
0
0 100 200 300
Position /mm
FIGURE 1.30 Energy flux distribution of the solar concentrator on the target plane
located at focal point.

Table 1.7 shows data for the PS10 tower power plant located in
Spain. The rated optical efficiency of the concentration field is
distinguished from the annual mean optical efficiency of the
concentration field. When designing thermal storage according to