| 摘要 |
A thermoelectric generator heated by nuclear energy comprises thermoelectric units (3) arranged on a cylindrical support (2). As nuclear heat source, a high-temperature thermal reactor (1) is used which is also cylindrical and is arranged in the centre of the support. As support,a shield of carbon fibre-reinforced graphite is used, which surrounds at a certain distance the high-temperature thermal reactor. Heat transfer from the high-temperature thermal reactor to the shield carrying the thermoelectric units occurs only through thermal radiation; similarly, heat is lost by the shield only through radiation. The core of the high temperature reactor, which preferably has a ring-shaped cross section, is entirely composed of ceramic material. The active core zone can be composed for example of graphite rod-shaped fuel elements containing coated particles of fuel. With this thermoelectric generator, an electric power of at least 200kWel can be obtained. |
