Question

Name the device used to convert solar energy into heat, and solar energy into electricity Explain the principle of working of a windmill

Answer 1

The use of distributed energy resources is increasingly being pursued as a supplement and an alternative to large conventional central power stations. The specification of a power-electronic interface is subject to requirements related not only to the renewable energy source itself but also to its effects on the power-system operation, especially where the intermittent energy source constitutes a significant part of the total system capacity. In this paper, new trends in power electronics for the integration of wind and photovoltaic (PV) …

Answer 2

Answer:

(a) Name the device used to convert

(i) Solar energy in to heat and

(ii) solar energy in to electricity.

(b) Explain the working of windmill

Ans.(a) (i) Solar cooker

ii)Solar cell.

(b)When the wind blows with a minimum speed of 15km/hr, the kinetic energy of the wind is used to rotate the blades of wind mill. The rotation energy of the blades is used to rotate the armature of the generator and generator in turn produce electricity.