Photoelectric Cell | Types & Applications

Photoelectric cell is the device which converts light energy into electrical energy. Depending upon the different photoelectric effects employed, the photoelectric cells are of following 3 types. Photoemissive cell Photoconductive cell Photovoltaic cell Photoemissive cell This cell is based on the fact that electrons are emitted from a photo-sensitive surface by the action of light. … Read morePhotoelectric Cell | Types & Applications

Geothermal Energy | Advantages & Disadvantages

Geothermal Energy Definition The energy which is generated by the temperature of the Earth and also gets stored inside the Earth is known as the geothermal energy. In the inner core of the earth, there is a layer of hot and molten rock called ‘magma’ which has temperature as high as 4,000°C. The sources of … Read moreGeothermal Energy | Advantages & Disadvantages

Measurement of Solar Radiation

Solar Radiation data are measured by 3 devices i.e. Pyranometer Pyrheliometer Sunshine Recorder 1. Pyranometer It is an instrument which is designed to measure Global radiation. It can be placed on horizontal as well as on the inclined surface. If Pyranometer is shaded by a shading ring, it measures the diffused radiation. Shading ring prevents the … Read moreMeasurement of Solar Radiation

Global Warming | Effects of Global Warming

Global Warming The term ‘Global Warming’ was given by Wally Broecker. Global warming is a phenomenon which refers increase in average temperature of the atmosphere of the earth over a long period of time. Before the pre-industrial revolution, the average atmospheric temperature of the earth was 15°C. Currently it is 16.6°C. In last 100 years … Read moreGlobal Warming | Effects of Global Warming

Captive Power Plants

Due to frequent increase in electricity tariff charged by the electric utility, poor reliability of electric supply, forced outages, long power cuts, etc. A large number of industries have switched over to their own generating station (plant) within their own campus. This method of generation is called as Captive Power Generation. Advantages of Captive Power Plants … Read moreCaptive Power Plants


Biofuels are liquid fuels that have been derived from agricultural crops including conventional food plants and special energy crops. It may also be derived from forestry, agricultural or fishery products or municipal wastes, as well as from agro-industry, food industry and food service by-products and wastes. Biofuels provide a strategic advantage to promote sustainable development … Read moreBiofuels

Biomass Energy & Biomass Energy Programmes in India

Biomass energy refers to the direct burning of wood, waste paper, manure, agriculture or converting them into a fuel by certain micro-organisms when they digest them in the absence of air. They produce either alcohol or methane gas, which themselves give energy on combustion. Since biomass is obtained through the process of photosynthesis, therefore it … Read moreBiomass Energy & Biomass Energy Programmes in India

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