Super Heater Railway app. Size 2
Buy a Solar concentrator and test it.
If you are in Africa, get the whole factory.
See Absorber Tube about connecting the troughs together.
Heat Exchanger Methods
How to Collect 2400kWh of Solar Power per Day
The following was taken from Design Strategy
Calculation Size 3:
A. 4 trips/hr * 100kwh/day * 6hr = 2400kwh/day
B. 4 trips/hr * 200persons/day * 6hr = 4800persons on the 50km round trip per day.
C. 4 trips/hr * 44.44m² * 6hr = 1066.6m² concentrator area.
D. Amount to be collected 2400kwh * 2 = 4800kWh
E. At 70% efficiency: 4800kWh * 0.7 = 3360kWh to the heat storage.
Super Heater Energy Input
Table 3
Buy a Solar concentrator and test it.
If you are in Africa, get the whole factory.
See Absorber Tube about connecting the troughs together.
Heat Exchanger Methods
How to Collect 2400kWh of Solar Power per Day
The following was taken from Design Strategy
Calculation Size 3:
A. 4 trips/hr * 100kwh/day * 6hr = 2400kwh/day
B. 4 trips/hr * 200persons/day * 6hr = 4800persons on the 50km round trip per day.
C. 4 trips/hr * 44.44m² * 6hr = 1066.6m² concentrator area.
D. Amount to be collected 2400kwh * 2 = 4800kWh
E. At 70% efficiency: 4800kWh * 0.7 = 3360kWh to the heat storage.
Super Heater Energy Input
Table 3
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Super Heater - Capturing the specified 2400kWh of energy required for the Solar Heat Engine Application
| Function | value |
| Required electric power at output | 2400kwh/day |
| Initial energy loss inside the (SHE) 50%. This value will improve when the heat recollection functions are activated. Amount required at the concentrators. | 4800kwh/day |
| Total amount of solar radiation/day | 4.5e3kWh/m² |
| Collector area required for 4800kwh/ 4.5e3kWh/m² | 1066.7m² |
|
From HTB Table 1 Parabolic Trough Concentrator (PTC) Absorber Tube Radius R: |
0.035m |
| Trough width | 2m |
| Trough length | 4m |
| Absorber Tube bottom 1/2 circle | 0.11m |
| One Trough Absorber Tube area: 4m*0.11m | 0.44m² |
| Trough size: 2m*4m | 8m² |
|
Solar concentration factor per trough: 8m²/0.44m² |
18.18 |
| Number of troughs rounded up: 1066.7m²/8m² | 134 |
| Total Absorber Tube solar receiver area for 134 troughs 4m*0.11m * 134 | 58.96m² |
| Peak Power/m² | 1kW |
| Peak Power/8m² (one trough) | 8kW |
|
Total Peak Power (rounded up) 1067m²: 134 * 8kW |
1072kW |
| Fluid temperature change in one trough Absorber Tube dT = Q/(U*A) using Glycerol dT = 8e3W/ 786 W/(m²·K) * 0.44m² |
23.1ºK |
| Fluid temperature change through 2 troughs absorber tubes in series. dT = Q/(U*A) using Glycerol dT = (8e3W*2)/ (786 W/(m²·K) * 0.44m²) | 46.3ºK |
|
Using NaCl + NaOh as storage material in (HS): Maximum temperature of Glycerol at the output of 2 tubes in series. 237ºC + 45.8ºK |
282,8ºC |
|
Pump F-P6 Mass Flow rate/s through 1 trough: Glycerol mg = Qg/(cp * dT) mg = 8e3/(3.1e3/(kg.°K) * 22.9ºK |
0.1127kg/s |
|
Pump F-P6 Mass Flow rate/s through 2 troughs: Glycerol 2 two troughs in series. Flow time 2s. mg = Qg/(cp * dT) mg = (8e3W*2)/(3.1e3J/(kg.°K) * 45.8ºK) |
0.1127kg/s |
| Number of flow paths supplied by Pump F-P6 : 134 troughs/2 | 67 |
| Total Mass Flow rate/s Pump F-P6 using: Glycerol mgt = mg * 67 | 7.55kg/s |
|
Sum of the theoretical efficiency. Series terminated after 3 energy recollection cycle. This is in reference to the amount in [E.] above: 3360kWh. 50% + (50% of 50%) = 25% + (50% of 25%) = 12.5% |
87.5% |
| Field Space for 2400kWh of effective concentrator power. 1.5 * 1067m² | 1600m² |