See 'reactor'. with water as a Any substance used to remove the heat in a nuclear reactor. ... and as a Material used to "decelerate" fast neutrons to low energies,..., boiling in the Part of the nuclear reactor where the fission chain reaction.... The resulting steam is generally used directly to drive a turbine. Example: Thermal power plant, primarily used for electricity generati... Gundremmingen, Unit C, 1,344 Megawatt electric; electric output of a power plant in megaw.... The See 'nuclear fuel'. elements containing the Natural radioactive element with the atomic number 92. The n... dioxide are located in the Thick-walled cylindrical steel vessel enclosing the reactor ..., two thirds of which are filled with water. The water flows through the Part of the nuclear reactor where the fission chain reaction... from bottom to top and removes the heat developed in the See 'nuclear fuel'. elements. Part of the water evaporates. Following steam-water separation in the upper part of the Thick-walled cylindrical steel vessel enclosing the reactor ..., the See wet steam. at a temperature of about 290 °C and a pressure of approx. 70 bar (7 MPa) is fed to the turbine. This amounts to up to 7,500 t steam per hour. The turbine is coupled to a three-phase generator. The steam exiting the turbine is liquefied in the condenser. For this purpose about 160,000 m3 cooling water per hour is required and is taken from the Tower-like concrete construction for closed-circuit cooling.... circuit. The feed water is heated to a temperature of about 215°C by means of a heating system and refed into the System used to initiate, maintain and control a fission chai.... The control rods containing the neutron-absorbing material are inserted in the Part of the nuclear reactor where the fission chain reaction... from below by means of an electromotor (normal drive) or hydraulically (Fast shutdown of a nuclear reactor, generally by fast insert...). The piping leads out of the Gastight case around a reactor and the circuit and auxiliary... into the engine house. A number of safety devices are installed to achieve immediate isolation of the System used to initiate, maintain and control a fission chai... from the engine house in case of a malfunction.