Direct Conversion Methods Renewable Energy Sources

Fusion processes require fuel and a confined environment with sufficient temperature.

Direct conversion methods renewable energy sources.

Direct conversion of nuclear energy to electricity may be done in a single step direct collection devices or in two steps involving intermediate thermal energy. Devices designed to harness this energy are known as fusion reactors. History and theoretical underpinnings electrostatic direct collectors. There are also lesser developed technologies that leverage ocean currents ocean winds and salinity gradients as sources of power conversion.

Available storage energy systems in the market differ depending on the used renewable energy source 1. Growing concern over the world s ever increasing energy needs and the prospect of rapidly dwindling reserves of oil natural gas and uranium fuel have prompted efforts to develop viable alternative energy sources. Energy sources conversion method specific energy mj kg conversion efficiency energy density mj l form of energy product phase co2 generation impurities water usage cost land usage cost sustainable energy fall 2010 conversion 12. Direct energy conversion usually implies the elimination of the mechanical rotary machinery turbines used in the previous examples.

The supplement sources could be either another renewable energy source combined with storage energy subsystem and or a diesel generator dg. Wind and hydroelectric power are the direct result of differential heating of the earth s surface which leads to air moving about wind and precipitation forming as the air is lifted. Post at the lawrence livermore national laboratory was an early proponent of the idea. There are many forms of renewable energy most of these renewable energies depend in one way or another on sunlight.

One direct conversion process makes use of the thermoelectric effect associated with heating the junction of two different conducting materials such as metals or semiconductors. The volatility and uncertainty of the petroleum fuel supply were dramatically brought to the fore. El wakil in alternative energy sources 1981. Batteries in all kinds are mainly used to store energy for pv and wind energy systems 2.

Cold ocean water from deep below the surface can be used to cool buildings with desalinated water often produced as a by product and seaside communities can employ the methods to tap natural ocean energy described above to supplement municipal power. In the middle of the 1960s direct energy conversion was proposed as a method for capturing the energy from the exhaust gas in a fusion reactor this would generate a direct current of electricity. Direct conversion processes can be used if the high quality energy form desired is electricity and the initial energy is in the form of heat.