Question

Explain with a diagram the step-by-step energy conversion in a solar thermal power plant.

Answer 1

In a solar thermal power plant, solar radiation is used to produce thermal energy. For this purpose, many reflectors are used to concentrate the solar radiation onto absorbers. The heat energy produced is used to convert water into steam. The steam possesses kinetic energy, which rotates the turbine. The turbine drives the generator, producing electrical energy.

Energy conversion:

Solar Energy → Thermal Energy → Kinetic Energy → Mechanical Energy → Electrical Energy.