A pressure vessel system has a pressure vessel for storing gaseous fuel, a fuel line, and a total-pressure sensor for measuring a total pressure of the fuel at a position within the fuel line. This makes it possible for various functions, such as the control of power reduction, for example, to be performed more accurately than if only static pressure were being used. The technology disclosed here also relates to an energy supply arrangement having such a pressure vessel system and having an energy converter, such as a fuel cell, for example.

A volatile organic compounds (“VOC”) collection system has an inlet, a positive displacement pump (“PDP”), a first automated control valve, a pressure vessel (“PV”), and PV top and bottom portion outlets. The PV has PV top and bottom portions. The inlet receives a VOC emission and is in fluid communication with the PDP through an inlet-PDP connector. The PDP is in fluid communication with the PV through a PDP-PV connector. The first automated control valve is in fluid communication with the PDP-PV connector. The PV top and bottom portions are in fluid communication with the PV top and bottom portion outlets respectively. The inlet-PDP connector is under a pressure that keeps the VOC emission in a vapor phase. The PDP-PV connector and the PV are under a pressure that condenses the VOC emission and separates the VOC emission into a gas phase and a liquid phase.

A volatile organic compounds (VOC) collection system has an inlet, a positive displacement pump (PDP), a first automated control valve, a pressure vessel (PV), and PV top and bottom outlets. The inlet receives a VOC emission and is in fluid communication with the PDP through an inlet-PDP connector. The PDP is in fluid communication with the PV through a PDP-PV connector. The first automated control valve is in fluid communication with the PDP-PV connector. The PV is in fluid communication with the PV top and bottom outlets. The inlet-PDP connector is under a pressure that keeps the VOC emission in a vapor phase. The PDP-PV connector and the PV are under a pressure that condenses the VOC emission and separates the VOC emission into a gas phase and a liquid phase.

A method of regenerating a cryopump includes: supplying a purge gas to a cryopump in order to heat a cryopanel to a first temperature zone higher than the melting point of water; suspending supply of the purge gas to the cryopump while a cryopanel temperature is in the first temperature zone, and heating the cryopanel from the first temperature zone to a second temperature zone higher than a purge gas temperature.

A pressure vessel system has a pressure vessel for storing gaseous fuel, a fuel line, and a total-pressure sensor for measuring a total pressure of the fuel at a position within the fuel line. This makes it possible for various functions, such as the control of power reduction, for example, to be performed more accurately than if only static pressure were being used. The technology disclosed here also relates to an energy supply arrangement having such a pressure vessel system and having an energy converter, such as a fuel cell, for example.

Various embodiments of the present technology may provide a vessel coupled to a first reaction chamber and a second reaction chamber via a first gas line and second gas line, respectively. Each gas line may comprise a variable feature, wherein each flexible feature is configured to change the flow dynamics of a gas flowing through the gas lines.