Deepakkumar Yadav
Applications of Geothermal Energy Important applications of geothermal energy are listed below : Space heating and cooling Generation of electrical power Industrial process heat. Other applications include desalination of water, heavy water production, extraction of minerals from geothermal fluids , timber seasoning etc. However, the geothermal energy is presently utilised mainly for power generation and … Read more
Origin and Types of Geothermal Energy Million’s year ago, the planet earth’s formation took place from gravitational collapse of the sun. The earth’s interior having the mass of hot liquids, gases and steam is cooling slowly and the temperature of the earth’s core is estimated to be about 4000°C. As the fluids are cooled by … Read more
Geothermal Energy Geothermal energy in the form of thermal energy is a form of renewable source of energy having high energy density. It is renewable since the earth’s interior will continue to provide energy continuously in the process of cooling of earth’s interior. It is inexhaustible like solar or wind energy. The geothermal energy in … Read more
Various Factors Affecting the Production of Biogas The rate of production of biogas depends on the following factors : Temperature and pressure Solid concentration and loading rate Retention period pH value Nutrients composition Toxic substances Digester size and shape Stirring agitation of the content of digester. 1. Temperature and pressure : The process of anaerobic … Read more
Biogas Generation Biogas is produced by anaerobic decomposition of organic wastes by suitable bacteria. It contains (55-65) percent methane, (30-40) percent carbon dioxide and the remainder are impurities like H2S, H2,H2 gases. The main source of production of biogas are crop residue, wet cow dung, vegetable wastes, water hyacinth, algae, poultry or piggery droppings, human waste, … Read more
Bio Fuels Biomass is carbon based organic compound. Such compounds burn in presence of air (O2) to release heat energy. The biomass can be directly burnt in solid form or it can be converted into more convenient form of liquid or gaseous form having higher energy density. The liquid and gaseous fuels derived from plant … Read more
Energy Conversion from Biomass The various process used for conversion of biomass into energy or bio fuels can be classified as follows: Direct combustion Thermo chemical conversion Biochemical conversion 1. Direct Combustion : The direct combustion of biomass in presence of oxygen/air to produce heat and by products is called direct combustion. The complete combustion … Read more
Biomass and Biomass Energy Resources Biomass is an organic matter produced by plants, both grown on land (terristial biomass) and grown on water (aquatic biomass) and their derivatives and animal manure. The energy obtained from biomass is called the biomass energy. Biomass can be considered a form of solar energy as it is used indirectly … Read more
Present Status and Limitations of Fuel Cells Fuel cell technology has been ignored in the recent past due to success of I.C. engines and batteries since the fuel cells were costly and uneconomical. However, the interest in fuel cells have been revived due to their direct energy conversion, high efficiency with negligible or no environmental … Read more
Selection of Fuel Cells The selection of a fuel cell is mainly based on the following factors : Cost Size/volume of cell Availability of fuel and its heat Transportability. Hydrocarbons like methane, ethane, and propane gases are not used since they are less reactive and their oxidation in fuel cell is difficult. Therefore, these fuels … Read more