I ntroduction.. 1 Energy Conversion  Energy Conversion  Energy Conversion is when energy changes into another form. In physics, the term energy describes the capacity to produce certain changes within a system, without regard to limitations in transformation imposed by entropy  Energy in a system may be transformed so that it resides in a different state, or different type of energy. Energy in many states may be used to do many varieties of physical work, also to provide some service to society (such as heat, light, or motion).

.  Energy exists in a variety of forms. All human activities involve conversion of energy from one form to another.   The human body, through complex processes, transforms the chemical energy stored in food into external motion and work produced by muscles as well as electrical impulses that control and activate internal functions. E nergy Classification & types of conversion. 2 Energy Conversion

H istory of energy transformation 3 Energy Conversion Big Bang Energy transformations in the universe over time are (generally) characterized by various kinds of energy which has been available since the Big Bang, later being "released" (that is, transformed to more active types of energy such as kinetic or radiant energy)

4 Energy Conversion H istory of energy transformation.. Continue Also as a look for the history the water energy had been used as in the rivers waves by consume it to rotate a wheel to move a motor or a generator. Then the first solar cell has been produced to generate electricity on the electricity street lines. And also a fuel cell has been discovered as shown in the pic. below

5 Energy Conversion Steam Power Plants are the most common form of geothermal power plant. The hot water is pumped under great pressure to the surface. When it reaches the surface the pressure is reduced and as a result some of the water changes to steam. This produces a ‘blast’ of steam. The cooled water is returned to the reservoir to be heated by geothermal rocks again. s team power plant.

6 Energy Conversion A gas turbine, also called a combustion turbine, is a type of internal combustion engine. It has an upstream rotating compressor coupled to a downstream turbine, and a combustion chamber in-between. Energy is added to the gas stream in the combustor, where fuel is mixed with air and ignited. In the high pressure environment of the combustor, combustion of the fuel increases the temperature. The products of the combustion are forced into the turbine section. There, the high velocity and volume of the gas flow is directed through a nozzle over the turbine's blades, spinning the turbine which powers the compressor and, for some turbines, drives their mechanical output. The energy given up to the turbine comes from the reduction in the temperature and pressure of the exhaust gas. G as Turbine.

7 Energy Conversion G as Turbine.

8 Energy Conversion F uel & Combustion.   Combustion is the conversion of a substance called a fuel into chemical compounds known as products of combustion by combination with an oxidizer. The combustion process is an exothermic chemical reaction, i.e., a reaction that releases energy as it occurs. Thus combustion may be represented symbolically by: FuelEnergy Fuel + Oxidizer =>> Products of combustion + Energy

9 Energy Conversion The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine, the expansion of the high-temperature and high - pressure gases produced by combustion apply direct force to some component of the engine. This force is applied typically to pistons, turbine blades, or a nozzle. This force moves the component over a distance, transforming chemical energy into useful mechanical energy. I nternal Combustion Engine.

10 Energy Conversion Air conditioning Air conditioning is the removal of heat from indoor air for thermal comfort. In another sense, the term can refer to any form of cooling, heating, ventilation, or disinfection that modifies the condition of air. An air conditioner (often referred to as AC or air con) is an appliance, system, or machine designed to change the air temperature and humidity within an area (used for cooling as well as heating depending on the air properties at a given time), typically using a refrigeration cycle but sometimes using evaporation, commonly for comfort cooling in buildings and motor vehicles. A ir Conditioning and refrigeration. Refrigeration Refrigeration is a process in which work is done to move heat from one location to another. The work of heat transport is traditionally driven by mechanical work, but can also be driven by magnetism, laser or other means. Refrigeration has many applications, including, but not limited to: household refrigerators, industrial freezers, cryogenics, air conditioning, and heat pumps.

A nuclear power plant (NPP) is a thermal power station in which the heat source is one or more nuclear reactors. As in a conventional thermal power station the heat is used to generate steam which drives a steam turbine connected to a generator which produces electricity. As of February 2nd, 2012, there were 439 nuclear power plants in operation through the world. Nuclear power plants are usually considered to be base load stations, which are best suited to constant power output. N uclear power plant. 11 Energy Conversion

A lternative energy systems. Alternative energy refers to energy sources that have no undesired consequences such for example fossil fuels or nuclear energy. Alternative energy sources are renewable and are thought to be "free" energy sources. They all have lower carbon emissions, compared to conventional energy sources. These include Biomass Energy, Wind Energy, Solar Energy, Geothermal Energy, Hydroelectric Energy sources. Alternative energy can also refers to the different and subtle energies of the Universe. The awareness and study of these energies, which are similar to electrical energies that science knows can result in amazing curative and healing energies.