Appendix C – Specific values at different receiver temperatures and solar irradiances
i
Table C-1: All values, except the percentages, are presented in the unit W/m². The receiver setups are; a) aluminum plate with coating covering top of receiver, b) aluminum plate with coating covering both top and bottom of receiver and c) original receiver setup. Further details about the setups can be studied in section 5.3.1 of the report.
800 800 800 400 400 400 800 800 800 400 400 400 800 800 800 400 400 400 42 42 42 21 21 21 42 42 42 21 21 21 42 42 42 21 21 21 91 73 -20% 73 -20% 67 48 -28% 48 -28% 66 56 -15% 55 -17% 41 31 -25% 30 -28% 44 41 -9% 39 -12% 20 16 -22% 14 -29% 133 122 -8% 129 -3% 94 83 -12% 89 -4% 105 102 -3% 106 1% 66 62 -6% 66 0% 83 85 3% 86 5% 43 45 4% 46 8% 37 30 -21% 30 -21% 27 19 -29% 19 -29% 27 23 -16% 22 -17% 17 12 -26% 12 -28% 18 16 -9% 16 -12% 8 6 -22% 6 -29% 44 40 -8% 43 -3% 31 27 -12% 29 -5% 34 33 -3% 35 1% 21 20 -6% 21 0% 27 28 3% 28 5% 14 14 4% 15 8% 453 493 9% 485 7% 161 202 26% 193 20% 526 545 3% 541 3% 234 254 8% 250 7% 586 589 0% 589 0% 294 298 1% 298 1% 73 73 73 36 36 36 82 82 82 41 41 41 91 91 91 45 45 45 381 421 11% 412 8% 125 166 33% 157 26% 444 463 4% 459 3% 193 213 10% 209 8% 496 498 1% 498 1% 249 253 2% 253 1% 572 572 -0,1% 572 -0,1% 286 286 -0,1% 286 -0,1% 572 572 -0,1% 572 -0,1% 286 286 -0,1% 286 -0,1% 572 572 -0,1% 572 -0,1% 286 286 -0,1% 286 -0,1% 33 31 -5% 31 -4% 35 34 -4% 34 -4% 10 7 -23% 8 -18% 13 10 -17% 11 -13% -12 -14 22% -14 17% -9 -11 28% -11 22% 17 17 3% 17 3% 17 18 3% 18 3% 7 8 3% 8 4% 8 8 3% 8 4% -1 -1 -9% -1 -12% -1 0 -22% 0 -29% 43 28 -36% 36 -16% 45 29 -36% 37 -16% 16 10 -36% 14 -16% 18 12 -36% 15 -16% -3 -2 -35% -3 -13% -1 -1 -35% -1 -11% 27 3 -89% 3 -89% 28 3 -89% 3 -89% 13 1 -89% 1 -89% 13 1 -89% 1 -89% 2 0 -93% 0 -92% 3 0 -92% 0 -91% 453 493 9% 485 7% 161 202 26% 193 20% 526 545 3% 541 3% 234 254 8% 250 7% 586 589 0% 589 0% 294 298 1% 298 1% Receiver temperature 75°C 49°C 25°C
Coating AlO Solkote AlO Solkote AlO Solkote AlO Solkote AlO Solkote AlO Solkote
Setup c b a c b a c b a c b a c b a c b a Solar Irradiance Reflectional loss at glazing Convectional loss at glazing Convectional loss at backside of reflector sheet Radiational loss at glazing Radiational loss at backside of reflector sheet Total powerproduction Electric Thermal Receiver values Incoming radiation Convectional loss at PV side of receiver Convectional loss at top of receiver Radiational loss at PV side of receiver Radiational loss at top
of receiver
Total powerproduction
ii Table C-2: All values, except the percentages, are presented in the unit W/m². The receiver setups are; a) aluminum plate with coating covering top of receiver, b) aluminum plate with coating covering both top and bottom of receiver and c) original receiver setup. Further details about the setups can be studied in section 5.3.1 of the report.
800 800 800 800 800 800 800 800 800 42 42 42 42 42 42 42 42 42 91 70 -23% 70 -23% 66 53 -20% 52 -21% 44 38 -15% 36 -19% 133 119 -11% 125 -5% 105 98 -6% 102 -3% 83 81 -2% 83 0% 37 29 -24% 28 -24% 27 21 -20% 21 -21% 18 15 -15% 15 -19% 44 39 -11% 41 -6% 34 32 -7% 33 -3% 27 26 -2% 27 0% 453 502 11% 493 9% 526 554 5% 550 4% 586 598 2% 598 2% 73 73 73 82 82 82 91 91 91 381 429 13% 421 11% 444 472 6% 468 5% 496 507 2% 507 2% 572 581 2% 581 2% 572 581 2% 581 2% 572 581 2% 581 2% 33 32 -3% 32 -2% 10 8 -15% 9 -10% -12 -14 15% -13 11% 17 17 3% 17 3% 7 8 4% 8 5% -1 -1 -15% -1 -19% 43 28 -36% 36 -16% 16 11 -35% 14 -16% -3 -2 -39% -2 -18% 27 3 -88% 3 -88% 13 1 -89% 1 -89% 2 0 -91% 0 -90% 453 502 11% 493 9% 526 554 5% 550 4% 586 598 2% 598 2% Receiver temperature 75°C 49°C 25°C
Coating AlO SolMax AlO SolMax AlO SolMax
Setup c b a c b a c b a Solar Irradiance Reflectional loss at glazing Convectional loss at glazing Convectional loss at backside of reflector sheet Radiational loss at glazing Radiational loss at backside of reflector sheet Total powerproduction Electric Thermal Receiver values Incoming radiation Convectional loss at PV side of receiver Convectional loss at top of receiver Radiational loss at PV side of receiver Radiational loss at top
of receiver Total powerproduction
