Answered: A Central-Receiver Solar-Thermal Power… | bartleby

A Central-Receiver Solar-Thermal Power Plant has (2670) heliostats, each with (12) glass panels that have (1.2 m X 3.6 m) of reflecting surface area. The average incident solar radiation during (10 hr) of operation is (635 W/m²). The steam cycle has (10 MW) average output at an overall efficiency of (30 %), assumed constant. The average power lost in radiation transmission from solar radiation on the heliostats to that received by the steam generator is (35 %). Estimate: a. The size of the thermal storage tank, having an energy storage density of (0.15 MWh/m³) and filled with (25%) void rock and with sodium, in (m³). b. The number of working hours the storage system can run the plant at average output.

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A Central-Receiver Solar-Thermal Power Plant has (2670) heliostats, each with (12) glass panels that have
(1.2 m X 3.6 m) of reflecting surface area. The average incident solar radiation during (10 hr) of operation is
(635 W/m²). The steam cycle has (10 MW) average output at an overall efficiency of (30 %), assumed
constant. The average power lost in radiation transmission from solar radiation on the heliostats to that
received by the steam generator is (35%). Estimate:
a.
The size of the thermal storage tank, having an energy storage density of (0.15 MWh/m³) and filled
with (25 %) void rock and with sodium, in (m³).
b.
The number of working hours the storage system can run the plant at average output.

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