Abstract: An electric power generation/hydrogen production combination plant comprises a feed water pump, a feed water heater arranged upstream relative to the feed water pump to heat feed water, a reformer for producing formation gas containing hydrogen by processing at least one raw material selected from the group consisting of methanol, ethanol and dimethylether, using steam, an intermediate loop for circulating a thermal medium in order to supply the heat of steam generated by a steam generator to the reformer, an intermediate heat exchanger for transmitting the heat of the steam by way of the intermediate loop and a heating outlet pipe of intermediate heat exchanger connected to the heating outlet of the intermediate heat exchanger and the feed water heater to heat feed water.

Abstract: A reactor feedwater system of a boiling water reactor includes: a reactor feedwater pump and a high pressure feedwater heater, that are arranged at an outside of a reactor containment vessel containing a reactor pressure vessel of a boiling water reactor, for pressurizing and heating a coolant; a main feedwater pipe for supplying the coolant, that are pressurized and heated by the reactor feedwater pump and the high pressure feedwater heater, to a side of the reactor containment vessel; and a plurality of branch pipes, that are connected to the main feedwater pipe, for pouring the coolant into the reactor pressure vessel. The main feedwater pipe is provided to the outside of the reactor containment vessel, and branching positions at which the branch pipes are branched from the main feedwater pipe are set to the outside of the reactor containment vessel, so that only the branch pipes penetrate through the reactor containment vessel and are connected to the reactor pressure vessel.

Abstract: An electric power generation/hydrogen production combination plant comprises a feed water pump, a feed water heater arranged upstream relative to the feed water pump to heat feed water, a reformer for producing formation gas containing hydrogen by processing at least one raw material selected from the group consisting of methanol, ethanol and dimethylether, using steam, an intermediate loop for circulating a thermal medium in order to supply the heat of steam generated by a steam generator to the reformer, an intermediate heat exchanger for transmitting the heat of the steam by way of the intermediate loop and a heating outlet pipe of intermediate heat exchanger connected to the heating outlet of the intermediate heat exchanger and the feed water heater to heat feed water.

Abstract: A nuclear reactor coolant recirculation equipment includes a plurality of internal pumps which are installed around a bottom portion of a reactor pressure vessel of a boiling-light-water reactor, power-supply sections for supplying current to the internal pumps, an internal pump cooling system, for cooling the internal pumps, including cooling water pipes and heat exchangers connected to the cooling water pipes, and auxiliary cooling water pumps for supplying the cooling water to the heat exchangers, respectively. The positions are set as internal pump installation positions at substantially same interval in a circumferential direction around a central portion of the bottom portion of the reactor pressure vessel, and nine or less and four or more numbers of the internal pumps are installed at the ten internal pump installation positions.