Deepakkumar Yadav
ydeepak297@gmail.com Hot Dry Rock (HDR) Resources Hot dry rock receives heat from magma. The temperatures are in the range of 150°C to 290°C which are available at a depth of about 5 km. Similar to oil well technology, the recovery of heat from HDR is done by drilling a deep hole in the rock and then … Read more
Applications of Geothermal Fluid for Low Temperature Systems The heat of geothermal fluid available at low temperature can be utilized by heating liquid or air in a heat exchanger. The thermal fluid after transferring heat is re-injected through a well into the ground. The hot liquid or air so heated can be utilized for various … Read more
Applications of Hydrothermal Resources Hydrothermal resources are those in which the water is heated by contact with the hot rock as explained above. These resources are located at shallow to moderate depths of 100 m to 5 km. Hydrothermal resources are further subdivided into : Vapour dominated (dry steam fields) Liquid dominated (wet steam fields) … Read more
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