Abstract:
There is provided an integrated electric compressor that can be made small in size while reducing radio noise effectively. In an inverter of the electric compressor, a snubber circuit 21 comprising a resistor R and a capacitor C is provided between input/output terminals 20 of a power source and a switching element 18. The snubber circuit 21 is formed by surface mounting a resistive element constituting the resistor R and a capacitor element constituting the capacitor C on a power board 16. A leakage current from a motor 19 is thus restrained and radio noise is reduced. The resistive element and the capacitor element constituting the snubber circuit 21 are preferably surface mounted on the power board 16 on the side opposite to the side on which a control circuit board is arranged.
Abstract:
In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.
Abstract:
In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.
Abstract:
There is provided an integrated electric compressor that can be made small in size while reducing radio noise effectively. In an inverter of the electric compressor, a snubber circuit 21 comprising a resistor R and a capacitor C is provided between input/output terminals 20 of a power source and a switching element 18. The snubber circuit 21 is formed by surface mounting a resistive element constituting the resistor R and a capacitor element constituting the capacitor C on a power board 16. A leakage current from a motor 19 is thus restrained and radio noise is reduced. The resistive element and the capacitor element constituting the snubber circuit 21 are preferably surface mounted on the power board 16 on the side opposite to the side on which a control circuit board is arranged.
Abstract:
To provide a high-temperature steam electrolytic apparatus and method that steam can be used as a common gas between a hydrogen electrode and an oxygen electrode, and the steam can be electrolyzed efficiently while the electrodes of the electrochemical cell are suppressed from oxidative and reductive degradation. A steam electrolytic apparatus 10, comprising an electrochemical cell composed of an electrolyte containing a solid oxide mainly, a hydrogen electrode and an oxygen electrode; a steam supply portion 13 for supplying the electrochemical cell 11 with a gas containing steam as a main component; a hydrogen gas discharge portion 14 for discharging hydrogen generated by the hydrogen electrode by electrolysis of the steam; and an oxygen gas discharge portion 15 for discharging oxygen generated by the oxygen electrode by electrolysis of the steam, wherein the oxygen electrode contains a reduction-resistant material.
Abstract:
A fast reactor comprises a core composed of nuclear fuel, a core barrel surrounding an outer periphery of the core, an annular reflector surrounding an outer periphery of the core barrel, a partition wall structure surrounding an outer periphery of the annular reflector and supporting the core barrel by a supporting structure arranged radially of the fast reactor, the partition wall structure constituting an inner wall of a coolant passage for a primary coolant, a neutron shield surrounding an outer periphery of the partition wall structure and disposed in the coolant passage, a reactor vessel surrounding an outer periphery of the neutron shield and having an inner wall constituting an outer wall of the coolant passage, and a guard vessel surrounding an outer periphery of the reactor vessel.
Abstract:
A tapping machine of the type in which the workpiece is automatically positioned, has a releasable connection of the worktable and carriage with the means for horizontally moving the worktable and the means for horizontally moving the carriage, so that the worktable and carriage may be released for manual operation. The tapping machine also has a means for detecting the position of the carriage and a means for detecting excessive thrust from the workpiece. In addition, the tapping machine may be provided with means for detecting the position of the worktable and a control device having a memory connected with the means for positioning the worktable so that when the worktable is manually positioned, the manual position may be entered and recorded in the memory of the control device. The tapping machine may thus be programmed so that multi-variety, small volume tapping is efficiently performed.
Abstract:
In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.
Abstract:
In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.
Abstract:
A high temperature steam electrolyzing device has: an electrolyzing cell section that includes a hydrogen electrode and an oxygen electrode arranged at mutually opposite sides of a solid oxide electrolyte operating as intermediate layer and electrolyzes steam to generate hydrogen; fixing flanges for fixing end sections of the solid oxide electrolyte of the electrolyzing cell section; a unit support member for supporting the fixing flanges; fitting flanges arranged at mutually opposite surfaces of the fixing flanges and the unit support member; gaskets made of metal or a mineral-based material and interposed between the fixing flanges and the fitting flanges and between the unit support member and the fitting flanges; and fastening members for separably fastening the fitting flanges.