Solar Power Plants
John Petkovich

Slide 2
Types of Plants
Parabolic Trough Solar Electric Generating system
Central Receiver Power Plant
Solar Chimney System
Dish Sterling System
Solar Pond Power Plant

Solar Electric Generating
Parabolic trough
Range 30-150 MW
Superheated Steam turns Generators

Selected SEGS
Slide 6
Slide 7
Central Receiver System
Field of heliostats (sun tracking mirrors)
Reflected to a tower mounted receiver
Steam generated electricity

Selected CRS
"Example of a Solar Tower"
Example of a Solar Tower

Solar Chimney
Physical Principals involved
flat plate air heater
tall chimney
vertical axis turbine
pressure changes are converted into kinetic
can be designed for 30-100 MW
one attempt in Spain
50 kW from 1986-89
200m tall and 45,000 m2 of collector

Dish Sterling System
Solar collector (paraboloidal dish reflector)
Sterling Engine
Mounted together and modular
gaseous H or He for coolant
10-15 kW range
interconnected to create 1 MW or more

Selected Dish Sterling Sites
Solar Pond
Collects both Direct and diffuse components
decreasing salt concentrations
Higher at bottom / Lower at top
organic Rankine-cycle engine and vapour generator
90oC commonly found at bottom of pond

Selected Solar Pond Plants
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