Super Heater to Energy Storage Size 1 100kwh
In Design Strategy it was shown that as a starting point for a railway SHE:
Calculation Size 1:
A. Start amount 100kwh
B. The 100kwh/500wh/person = 200 persons on the 50km round trip per day.
C. Taking into account the SHE internal losses, (100kwh/4.5kwh/m²) * 2 = 44.44m² of solar concentrators for the first start up day.
D. Amount to be collected 100kwh * 2 = 200kWh
E. At 70% efficiency: 200kWh * 0.7 = 140kWh to the
heat storage.
Further reference App. Diagram 3
Table 2
In Design Strategy it was shown that as a starting point for a railway SHE:
Calculation Size 1:
A. Start amount 100kwh
B. The 100kwh/500wh/person = 200 persons on the 50km round trip per day.
C. Taking into account the SHE internal losses, (100kwh/4.5kwh/m²) * 2 = 44.44m² of solar concentrators for the first start up day.
D. Amount to be collected 100kwh * 2 = 200kWh
E. At 70% efficiency: 200kWh * 0.7 = 140kWh to the
heat storage.
Further reference App. Diagram 3
Table 2
electronic-
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| Function | value |
| At 70% concentrator efficiency, the required amount of heat energy in the Heat Storage (HS) 200kwh/day * 0.7 | 140kWh/day |
| Total amount in MJ: 140kWh * 3600s | 504MJ/day |
| From the 140kWh/day of input energy 38% is to be recapture, stored in (HS) and reused: 140kWh/day * 0.38 is the estimated amount to be recaptured. | 53kWh/day |
| Total amount in MJ: 53kWh/day * 3600s | 191MJ |
|
From Heat Storage Materials: At it's melting point 1m³ of molten NaCl + NaOh at a weight of 2181.1Kg/m³ can store. |
294MJ/m³ |
| Amount of by volume required to store 191MJ/day in NaNO2 + NaOh 504MJ/294MJ/m³ | 1.7m³ |
| Total weight using 1.7m³ of NaNO2 + NaOh 2181.1Kg/m³ * 1.7 | 3707kg |
|
3 * 1.7m³ separate storage spaces will be required: (round up) 3 * 2m³ 1 storage on line 1 storage on charge 1 storage fully charged and waiting to go on line or down for maintenance. |
6m³ |
|
From Table 1 100kWh of electric power can be collected on 67m² of house roof. The solar concentrators can be placed inside the arches of house roofs, so they can hardly be seen. On most days an average family would use about 5kWh. The rest could be sold to local governments in order to power buildings and street lighting. The main advantage for government buildings in remote areas is that the multiple energy sources from the surrounding houses will ensure that complete power outages for any given reason will become very unlikely. Example: If a government building is on the edge of a desert, one would not want there to be lack of energy for even a couple of hours. |