Utilization of Electrical Energy

Hi friends, In this article, I am going to discuss the domestic refrigerator working principle and construction. You will find this article interesting and informative. So let us start. The common type of domestic refrigerator has a cabinet shaped with compressor, the condenser and receiver fitted in their basement. The expansion valve and evaporator coils are exposed […]

 Electron beam welding in vacuum utilizes the kinetic energy of electrons traveling with high velocity in a high vacuum (10-3 to 10-5 mm Hg). When the electrons strike the surface of the metal, they give up the bulk of their energy as heat, and this goes to melt the metal. If the work is done in

The laser is a device that produces a concentrated coherent light beam by stimulating electronic or molecular transitions to lower energy levels. The word laser is an acronym for “light amplification by stimulated emission of radiation”. The laser beam is a highly concentrated source of energy which has many applications. It can be used for welding,

Hi friends, in this article, I am going to explain the electroplating process steps and hope you will find it very informative and interesting. The electroplating is an art of depositing a superior or more noble metal on a base metal by means of electrolysis. For example, metals like iron are coated with deposits of nickel or

Electric resistance welding is a group of welding processes in which welding heat is obtained from resistance of the work to the flow of electrical current and by application of pressure. No flux or filler metal is added. Working Principle of Electric Resistance Welding In resistance welding, a heavy current above 100 A at low

Dielectric heating is also known as radio frequency heating or electronic heating. When a non-metallic material such as wood, plastic, bone, or ceramic is subjected to an alternating electrostatic field, the dielectric loss occurs in it. This loss appears in the form of heat in dielectric heating. It is the basic dielectric heating principle. A

In the electric arc furnace, the heat is generated by an electric arc. In this furnace, the arc may be created by the following different ways: 1. By striking the arc between the charge and electrode: In this method, the heat is directly conducted and taken by the charge. The furnace operating on this principle

The induction heating works on the transformer principle. It is also known as eddy current heating. In these machines, the currents are induced by the principle of electromagnetic induction. It may be of low frequency as in the case of core type induction furnaces or of high frequency as in the case of coreless induction

The basic principle of resistance heating is that, when current passes through some resistance, power loss takes place which appears in the form of heat. There are two types of resistance heating, namely, direct resistance heating and indirect resistance heating. Direct Resistance Heating In the direct resistance heating, the electric current passes through the charge