Low Temperature Solar Power Plant using Array of Flat Plate Collector
(Fluid Temperature Range 60°C to 100°C)
- Fluid used-Low boiling point refrigerant (R-11).
- Solar collector used - Flat plate solar collector.
- Working fluid temperature - 60°C to 100°C.
- Efficiency of plant - Very low, 2 to 3% only.
- Components - Solar collector, Heat exchange, turbine, generator, condenser, circulating pump.
- These components are shown connected in a block diagram in Figure.
Solar radiation energy
- To Electrical Energy Cycle-Flat plate collector collects solar energy-Heat energy-Water In the pipes in solar collector heated-Hot water-Heat exchanger (Butan Boiler) Butan gas is produced at high pressure gases-Butan turbine-It starts rotating - Mechanical power of turbine drives the generator which produce electrical energy-Low pressure butan gas goes to condenser-It is condensed and pump drives the gas to Heat Exchanger (Butan Boiler).
- How water exchanges heat to butan in boiler and looses heat-cold water pumped back to tubes of flat collector.