A system for depressurizing a gas in a pipeline is described. The system com-prises an expander configured and arranged for generating mechanical power by expanding gas from a first pressure to a second pressure. The system further comprises a heat pump and a heat transfer circuit containing a heat transfer fluid circu-lating therein, for receiving heat from the heat pump and delivering heat to the gas through a heat exchanger. A controller is further provided, configured and arranged for modulating a flow rate of the heat transfer fluid circulating in the heat transfer circuit as a function of a heat rate to be transferred from the heat transfer fluid to the gas, particularly as a function of temperature differentials between the gas and the heat transfer fluid at a gas inlet side and a gas outlet side of the heat exchang-er.

In a method for reheating an atmospheric vaporizer, a cryogenic liquid is vaporized by heat exchange with ambient air in the atmospheric vaporizer and to reheat the vaporizer, a gas is sent thereto at a temperature of at least 0 C., this gas originating from a cryogenic distillation air separation unit.

In a method for reheating an atmospheric vaporizer, a cryogenic liquid is vaporized by heat exchange with ambient air in the atmospheric vaporizer and to reheat the vaporizer, a gas is sent thereto at a temperature of at least 0 C., this gas originating from a cryogenic distillation air separation unit.

A device for drying a nozzle for liquefied gas included a first member for receiving the nozzle adapted to heat a heating unit, a heat storage, a pneumatic inlet, a pneumatic outlet, and a channel connecting the pneumatic inlet to the pneumatic outlet. The pneumatic outlet is arranged in the first member and the channel is arranged such that a pneumatic flow within the channel is heated by the heat storage.

A device for drying a nozzle for liquefied gas included a first member for receiving the nozzle adapted to heat a heating unit, a heat storage, a pneumatic inlet, a pneumatic outlet, and a channel connecting the pneumatic inlet to the pneumatic outlet. The pneumatic outlet is arranged in the first member and the channel is arranged such that a pneumatic flow within the channel is heated by the heat storage.

A heating volume absorber for a container of liquid of a vehicle, in particular a motor vehicle, includes: a deformable element having a deformable internal part forming an internal chamber, the deformable internal part being constructed and arranged so as to be positioned in the container of liquid, an external body forming an external chamber communicating with the internal chamber, the external body having at least one deformable wall and being constructed and arranged so as to obstruct an orifice of the container of liquid; a heat transfer fluid disposed in the deformable element; and an electric heating device for heating the heat transfer fluid.

A system for depressurizing a gas in a pipeline is described. The system com-prises an expander configured and arranged for generating mechanical power by expanding gas from a first pressure to a second pressure. The system further comprises a heat pump and a heat transfer circuit containing a heat transfer fluid circu-lating therein, for receiving heat from the heat pump and delivering heat to the gas through a heat exchanger. A controller is further provided, configured and arranged for modulating a flow rate of the heat transfer fluid circulating in the heat transfer circuit as a function of a heat rate to be transferred from the heat transfer fluid to the gas, particularly as a function of temperature differentials between the gas and the heat transfer fluid at a gas inlet side and a gas outlet side of the heat exchang-er.

A vehicle including: a tank configured to be filled with fuel gas; a receptacle configured to be connected to a nozzle included in a fuel gas filling apparatus; a filling passage configured to provide communication between the receptacle and the tank; a heating unit configured to heat the receptacle; a determination unit configured to determine whether or not a parameter value, correlated with a filling speed of the fuel gas filled into the tank from the fuel gas filling apparatus, indicates decrease in the filling speed during filling of the fuel gas into the tank; and a control unit configured to, when the determination unit determines that the parameter value indicates decrease in the filling speed during filling of the fuel gas into the tank, to cause the heating unit to start heating of the receptacle during filling of the fuel gas into the tank.

A vehicle including: a tank configured to be filled with fuel gas; a receptacle configured to be connected to a nozzle included in a fuel gas filling apparatus; a filling passage configured to provide communication between the receptacle and the tank; a heating unit configured to heat the receptacle; a determination unit configured to determine whether or not a parameter value, correlated with a filling speed of the fuel gas filled into the tank from the fuel gas filling apparatus, indicates decrease in the filling speed during filling of the fuel gas into the tank; and a control unit configured to, when the determination unit determines that the parameter value indicates decrease in the filling speed during filling of the fuel gas into the tank, to cause the heating unit to start heating of the receptacle during filling of the fuel gas into the tank.

The present invention relates to a pump (15) for pumping a coolant (9) within a Dewar vessel (1) and to a corresponding Dewar vessel (1) for storing samples in a coolant (9). The Dewar vessel (1) comprises a thermally insulated reservoir (3) for the coolant (9) and a sample vessel (11) provided separately and arranged in the thermally insulated reservoir (3). The reservoir (3) is connected to the sample vessel (11) in such a way that the level of coolant (9) is constant in the sample vessel (11). Pump (15) may help in keeping the level of coolant (9) in the sample vessel (11) constant. For this purpose the pump (15) comprises a chamber (17) with an inlet (19) and an outlet (21), a closing element (23) and a pressure increasing device (25). Therein, the inlet (19) is connectable to the reservoir (3) and the outlet (21) is connectable to a sample vessel (11) of the Dewar vessel (1). The chamber (17) is adapted to fill with coolant (9) through the inlet (19) by gravity and the closing element (23) is adapted to automatically close the chamber (17) when it is full of coolant (9). The pressure increasing device (25) is adapted to increase the pressure within the chamber (17), after the chamber (17) is closed, until the coolant (9) is released through the outlet (21).