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Abrasive Jet Machining (AJM) Principles In abrasive jet machining process, a focused steam of abrasive particles (of size 10 to 40 microns) carried by high pressure gas or air at a velocity of about 150 to 300 m/sec is made to impinge on the work surface through a nozzle, and the work material is removed by erosion by the high velocity abrasive particles. The inside diameter (ID) of the

An air compressor is a machine used to compress the air and raise its pressure. The compressed air is used for many purposes such as for operating pneumatic drills, riveters, road drills, paint spaying, in starting and supercharging of internal combustion engines, in gas turbine plants, jet engines and air motors etc. It is also utilised in the operation of lifts , rams, pumps and a variety of

Biomass - Important facts Biomass advantages and disadvantages are associated with some very important facts. Day by day the conventional energy sources like fossil fuels is reducing. Finding sources for conventional energy is a very complicated and lengthy process. But with the increasing population, the need for new energy sources is also rapidly increasing in developing countries and in

Tidal Energy - How Tidal energy works- An introduction All flowing water carry with them kinetic energy. When such water encounters a turbine, part of the momentum of the flowing water is transferred ton to the turbine, causing it to rotate. The rotation of the turbine cam then be used to generate electricity. So for electricity generation purpose we must know about tidal energy advantages and

Wave Energy - A steadier Renewable energy than Wind Waves are increasingly generated in oceans and large lakes; at times the waves are strong enough to overturn large ships or toss them ashore. Gravitational attraction of the sun and the moon as well as the force of wind are mainly responsible for the wave being created. Oceans are efficient collectors of wind energy; indeed waves are a

The energy from the sun reaching the earth per day ranges from about 600 Btu (British Thermal Unit) / square feet for Northern Europe to about 2000 Btu/square feet for arid regions near the equator. More energy from sun strikes the earth in one hour than all energy consumed on the planet in a year! A summer day’s sun at noon provides a square, meter of land with a power input almost a kilowatt.

A brief story of global warming- global warming skepticism Of all the forecasts of global environmental disasters made from time to time, the one which aroused the most widespread skepticism was about global warming. Even as several well-meaning people took it seriously- some rather too seriously- a whole lot of other scientists and policy-makers dismissed it as over-exaggeration. During

Tracking concentrators provide high delivery temperatures but require accurate tracking device and fine surface accuracies and hence are expensive. However, for medium temperature operation, less expensive concentrators have been designed, without the tracking required. The description of some of these concentrators is given below: Classification of Non-Tracking Concentrators Broad

In order to achieve a high concentration for high temperatures solar processes, concentrators with double curvatures are used. These requires two axes tracking of the sun. Some of these have been described below: Please Read: One axis tracking concentrator classification, construction and working principle Elaborate classification, advantages and disadvantages of solar concentrators

Concentrators with one axis tracking are used to achieve moderate concentration. A few of them have been described below. Please read: Classification, construction and working principle of two-axes tracking concentrator Classification and Working Principle of non tracking solar concentrators For knowing about the other concentrators follow the link: Classification of Solar

Introduction: Definition of Solar Concentrators: Solar Concentrator is a device which concentrates the solar energy incident over a large surface onto a smaller surface. The concentration is achieved by the use of suitable reflecting or refracting elements, which results in a increased flux density on the absorber surface compared to that existing on the concentrator aperture. In order to

Fossil fuel use is the prime cause of global warming and ocean acidification. Then the obvious solution to that problem is that: Either some way is found out to use fossil fuels, but not let the resulting CO2 escape to the atmosphere, in other words to sequester (catch/lock up) the CO2 , or To find other fuels which do not release CO2 (or other greenhouse gases) Renewable Energy Sources

What is a solar pond pump? A solar pond pump takes the solar energy from a PV or Photovoltaic panel. Sometimes these pumps are designed as a fountain and sometimes called the solar fountain pump. A solar powered pond pump can be a great alternative to the conventional pumps. And eventually in the long run it will save the expenses. For the perfect functioning of solar pumps the solar

Every type of energy has its own advantages and limitations. In this article I will discuss about the pros and cons of geothermal energy. What is Geothermal Energy? The earth is a heat reservoir of heat energy in the form of molten interior. Surface manifestation of this heat energy is indicated by hot water springs and geysers discovered at several places. Heat can be experienced

Biogas can be a great alternative of fossil fuels. It is already in use in many rural areas. Biogas plants use animal waste, plant waste and human waste. All this wastes have great combustible property. Biogas is an excellent renewable energy source. It is produced by the digestion of waste materials by the means of anaerobic reaction. Anaerobic means the absence of Oxygen. In most of the rural

The conventional energy sources are rapidly depleting because of their excessive use in the modern world. And that's why energy or power generation sectors are very much interested in the utilization of renewable energy sources. The conventional energy source includes Natural Gas, Coal, Nuclear Energy, Crude oil etc. The price of these non-renewable fuels is almost touching the sky and getting

What is Condenser ? The primary purpose of the condenser is to condense the exhaust steam from the turbine and thus recover the high-quality feedwater for reuse in the cycle. In order for a steam power station to operate an efficient-closed cycle, the condensing plant, cooling water (CW) system, and associated pumps must extract the maximum quantity of heat from the exhaust steam of the

What is hydroelectric power (facts) ? Let’s start with the hydroelectric power definition: In hydroelectric power plants, the potential energy of water is converted into mechanical energy which runs a generator. Hydraulic power is a naturally available renewable energy source. Power of a hydroelectric power station is given as:

What are renewable energy sources ? Renewable Energy Sources refers to the sources which are not at risk of being finished. They are replaced naturally. At present times it seems that the use of renewable sources are inevitable because the non - renewable energy sources are getting scarce. The non-renewables like coal, crude oil. nuclear sources, natural gas, wood fuels, shale oil are almost

Main Components of Nuclear Power Plant The main components of Nuclear Power Plant are – Nuclear fuel Nuclear Fuel is fissionable element or nuclei. They should undergo nuclear fission by nuclear bombardment. They should be able to sustain the nuclear chain reaction. Examples of Nuclear fuels are U233 , U235 , Pu239 . The percentage of different Uranium isotopes in the