Abstract: A gas and steam-turbine plant includes a waste-heat steam generator connected downstream of a gas turbine on the flue-gas side. The waste-heat steam generator has heating areas connected in a water/steam circuit of a steam turbine. A heat exchanger is provided for cooling a coolant of the gas turbine in order to ensure reliable cooling of the gas turbine even under varied operating conditions. The heat exchanger has a secondary side connected in a second water/steam circuit. The second water/steam circuit is connected to the water/steam circuit of the steam turbine in such a way that it can be shut off. A method is also provided for cooling a coolant of a gas turbine of a gas and steam-turbine plant.

Abstract: A gas and steam-turbine plant having a heat-recovery steam generator which is connected downstream of a gas turbine on a flue-gas side is described. The heat-recovery steam generator has heating surfaces connected in a water/steam circuit of a steam turbine. Cooled air for cooling the blades can be directed via an evaporator to the gas turbine. The evaporator is connected on a secondary side to the water/steam circuit and opens on an outlet side into a steam-collecting chamber. The steam-collecting chamber is connected to a water/steam drum via feed pipes connected in parallel on a steam side. The intention is to ensure that, during the transport of the water/steam mixture from the evaporator to the water/steam drum, a separation of the two-phase mixture is reliably prevented. Therefore, the steam-collecting chamber has a number of sub-chambers, which are connected to one another and in each case assigned to a feed pipe.

Abstract: Device for storing radioactive material in a building, including a building wall defining an interior of the building, heat pipes being disposed in the wall and having heat exchange surfaces including a part thereof disposed outside the building for giving off heat absorbed in the interior of the building to the air through the part of the heat exchange surfaces outside the building, cooling jackets surrounding the heat exchange surfaces at least in the vicinity of the wall, and a cooling loop for circulating coolant being connected to the cooling jackets for heat recovery.

Abstract: Plant for cooling water circulating in a secondary cooling loop, including a plurality of parallel operating cooling cells each having a blower, a drive motor for the blower and a cooling water pump having a suction side, the cooling water pumps of the cooling cells being separately drivable, a cold water basin connected to the cooling cells, a secondary cooling water pump connected to the cold water basin, a heat exchanger connected to the secondary cooling water pump, a warm water basin being directly connected to the suction side of the cooling water pumps and being disposed upstream of the cold water basin, and means disposed between the warm water basin and the cold water basin for providing an overflow therebetween.

Abstract: Dry storage system for spent nuclear-reactor fuel assemblies including a building having an interior secured against external influence, devices disposed in the building for removing from shipping containers, by remote control, spent fuel assemblies delivered in the shipping containers into the building and for enclosing the fuel assemblies in gas-tight storage boxes as well as filling the remaining space in the storage boxes with heat-conducting medium, at least one storage chamber in the building having therein storage racks for supporting the fuel-element storage boxes in horizontal stacks, a transporting device movable into respective coordinate positions for stacking the fuel-element storage boxes horizontally in the storage racks, and heat removing devices disposed in outer walls of the building for providing natural air circulation through the storage racks.