Abstract: A gas supply module includes: a plurality of tanks; a solenoid valve; an intermediate flow path; a merging portion; a gas discharge flow path; a pressure measuring device; and a control unit. The control section controls the solenoid valve of any one of the solenoid valves to the open state at the start of the gas discharge, controls the solenoid valve to the closed state at the end of the gas discharge, and records the pressure measured by the pressure measuring device as the pressure of the tank provided with the solenoid valve controlled to the closed state.

Abstract: The gas utilization apparatus disclosed herein includes a gas tank having a first valve, a gas utilization device having a second valve, a gas pipe connecting the first valve and the second valve, a third valve provided in the gas pipe, and a controller. The controller alternately executes opening and closing of the first valve and opening and closing of the third valve in a state in which the second valve is closed. By the process, an internal pressure of the gas pipe between the second valve and the third valve gradually rises. The controller opens the first valve, the second valve, and the third valve when the internal pressure of the gas pipe between the second valve and the third valve reaches a predetermined threshold pressure.

Abstract: A stack unit including a fuel cell stack and a hydrogen tank module are provided. The hydrogen tank module includes a plurality of hydrogen tanks each provided with a valve, a temperature sensor for measuring the temperature of the hydrogen gas supplied from each hydrogen tank to the stack unit, and a control device for switching the supply state of the hydrogen gas from each hydrogen tank to the stack unit by controlling the valve of each hydrogen tank. The control device selectively uses one of the hydrogen tanks as a current supply tank for supplying the hydrogen gas to the stack unit, and switches the current supply tank to another hydrogen tank when a hydrogen gas temperature measured by the temperature sensor becomes equal to or lower than a reference temperature.

Abstract: A high-pressure tank includes a liner that includes a body that is cylindrical in shape and a pair of dome portions each of which is provided at a respective end of the body in an axial direction, and a reinforcing layer provided on an outer circumferential face of the liner. The reinforcing layer includes a pair of resin rings each of which is provided encircling a respective end portion of an outer circumferential face of the body, a hoop layer that covers part of the outer circumferential face of the body, between the resin rings, and a helical layer that covers the resin rings, the hoop layer, and the dome portions. The resin rings are configured to cover part of the body from boundary portions between the body and the dome portions, and increase in thickness from the boundary portions toward a middle of the body.

Abstract: A high-pressure tank includes an assembly of a pipe split body having a pipe liner and a pipe reinforcement layer covering an outer circumferential surface of the pipe liner, first dome split body having a first dome liner and a first dome reinforcement layer covering an outer circumferential surface of the first dome liner, and second dome split body having a second dome liner and a second dome reinforcement layer covering an outer circumferential surface of the second dome liner. The pipe split body and the first dome split body are assembled such that the first dome liner is located in the outer portion of the high-pressure tank relative to the pipe liner. The pipe split body and the second dome split body are assembled such that the second dome liner is located in the outer portion of the high-pressure tank relative to the pipe liner.

Abstract: A gas supply module includes: a plurality of tanks; a solenoid valve; an intermediate flow path; a merging portion; a gas discharge flow path; a pressure measuring device; and a control unit. The control section controls the solenoid valve of any one of the solenoid valves to the open state at the start of the gas discharge, controls the solenoid valve to the closed state at the end of the gas discharge, and records the pressure measured by the pressure measuring device as the pressure of the tank provided with the solenoid valve controlled to the closed state.

Abstract: A storage module including a tank includes: a filling port configured to fill the tank with gas, a supply port configured to supply gas from the tank to a supply destination a release port configured to release gas from the tank, a first channel that is a channel connecting the tank and the filling port, a second channel that is a channel connecting the tank and the supply port, and a release channel that is a channel connecting at least one of the first channel, the second channel, and the tank, to the release port.

Abstract: A tank includes a liner that includes a barrel portion in a cylindrical shape and a pair of dome portions provided at both ends of the barrel portion in the axial direction, and a reinforcing layer that covers the liner and that is formed from a fiber reinforced resin formed by impregnating a fiber bundle with a resin. A portion of the reinforcing layer that covers the dome portions includes a radial arrangement layer in which fibers of the fiber bundle are arranged radially along the radial direction of the dome portions when seen in the direction of an axis of the tank.

Abstract: A high-pressure tank includes a liner that includes a body that is cylindrical in shape and a pair of dome portions each of which is provided at a respective end of the body in an axial direction, and a reinforcing layer provided on an outer circumferential face of the liner. The reinforcing layer includes a pair of resin rings each of which is provided encircling a respective end portion of an outer circumferential face of the body, a hoop layer that covers part of the outer circumferential face of the body, between the resin rings, and a helical layer that covers the resin rings, the hoop layer, and the dome portions. The resin rings are configured to cover part of the body from boundary portions between the body and the dome portions, and increase in thickness from the boundary portions toward a middle of the body.

Abstract: A high-pressure tank includes an assembly of a pipe split body having a pipe liner and a pipe reinforcement layer covering an outer circumferential surface of the pipe liner, first dome split body having a first dome liner and a first dome reinforcement layer covering an outer circumferential surface of the first dome liner, and second dome split body having a second dome liner and a second dome reinforcement layer covering an outer circumferential surface of the second dome liner. The pipe split body and the first dome split body are assembled such that the first dome liner is located in the outer portion of the high-pressure tank relative to the pipe liner. The pipe split body and the second dome split body are assembled such that the second dome liner is located in the outer portion of the high-pressure tank relative to the pipe liner.

Abstract: A tank includes a liner that includes a barrel portion in a cylindrical shape and a pair of dome portions provided at both ends of the barrel portion in the axial direction, and a reinforcing layer that covers the liner and that is formed from a fiber reinforced resin formed by impregnating a fiber bundle with a resin. A portion of the reinforcing layer that covers the dome portions includes a radial arrangement layer in which fibers of the fiber bundle are arranged radially along the radial direction of the dome portions when seen in the direction of an axis of the tank.

Abstract: Provided is a pressure vessel strain analysis device capable of grasping a correlation between manufacturing conditions and strains. The pressure vessel strain analysis device includes an analysis unit. Based on a plurality of manufacturing conditions of a plurality of pressure vessels and a plurality of strains acquired by an image correlation method in a state where a predetermined internal pressure is applied to the plurality of pressure vessels manufactured under the plurality of manufacturing conditions, the analysis unit calculates a correlation between the plurality of manufacturing conditions and the plurality of strains.