Research Of Semiconductor Thermoelectric Generator Application

As the fast development of industrialization, the global exacerbation of environment and the crisis of energy are threatening human long-term and steady-going development. The governments all over the world have pay more attention to these problems and stake much to all kinds of researches of green technology. Thermoelectric generator (TEG) is a solid-state device which can convert heat into electricity directly without chemical reaction. It is based on the Seebeck effect of semiconductor. It has many advantages such as quiet, small size, light weight, no mechanical moving parts, long life, high reliability, no pollution and so on. Therefore, TEG has been applied to many fields. For example, the residual heat in industry, radioactive isotope, hydrocarbon fuel are widely applied to some special fields such as military affairs, telecommunication, long-range spacecraft and so on.Recently, a new small but high-efficiency TEG was launched. In this paper, we mainly study the heat-electricity capability of this new TEG. Three kinds of semiconductor thermoelectric systems were designed. The first one is a lighting system in which the hot side is attached to a heat source such as hot water while the cold side is open to ambient air. The high-efficiency and high-luminance LED is used as lighting facility. The system is used as family lash-up lighting facility. The second one is a semiconductor thermoelectric generator in which the hot side is heated by fire, and the cold side is controlled by boiling water, for water's boiling temperature doesn't go beyond 100℃. The third one is also a semiconductor thermoelectric generator, but it uses the solar energy as hot source while the cold side is open to ambient air.Finally, we design a manipulative direct current circuit for the two semiconductor...