An embodiment device for detecting a leak in a hydrogen storing system includes a case having an accommodation space defined therein, wherein the accommodation space is configured to accommodate a plurality of storage tanks and a component part therein, the component part including a component configured to fill a fuel into the plurality of storage tanks or supply the fuel to a fuel consumer, and a sensor part disposed in the case, the sensor part including a pressure sensor configured to measure a pressure of a fluid inside the accommodation space and a temperature sensor configured to detect a temperature of the fluid.

A method for assisting the management of a vessel comprising at least one tank configured to contain liquefied gas and a vapor phase treatment system capable of sending boil-off gas exiting the tank to a propulsion engine of the vessel or to a gas combustion unit on board the vessel and capable of extracting a portion of the liquid phase contained in the tank and of evaporating this portion in order to send it to the propulsion engine. The method comprises: generating at least one tank management scenario defining an evolution of the pressure of the gas phase contained in the tank along a path of the vessel; computing a cost function that at least depends on a total amount of boil-off gas generated in the tank along the path; and displaying to a user the tank management scenario as a function of the computed cost function.

A model-based fault detection device for a liquid hydrogen refueling system using a cumulative sum method includes a memory that stores instructions, and a processor configured to, by executing the instructions, obtain process variables inside a liquid hydrogen storage system based on a simulation model for the liquid hydrogen storage system, obtain normal scenario data and fault scenario data of the process variables by using a steady-state model and a dynamic state model for the liquid hydrogen storage system, calculate an upper end cumulative sum index C.sub.i.sup.+ and a lower end cumulative sum index C.sub.i.sup. by applying a cumulative sum (CUSUM) control method to deviation data corresponding to a difference between the normal scenario data and the fault scenario data, and detect whether the liquid hydrogen storage system is faulty by comparing the upper end cumulative sum index C.sub.i.sup.+ and the lower end cumulative sum index .sub.C.sup. i with a threshold.

To enable a hydrogen tank to be efficiently filled with hydrogen even when the hydrogen tank has a large capacity, hydrogen filling at the nozzle flow is prohibited when the nozzle flow of a nozzle is larger than the receptacle flow of a receptacle or when the receptacle flow is unknown under the condition that the nozzle and the receptacle can be connected to each other.

The invention relates to a calculation method (400) for calculating dimensions of spacer elements (40) intended for the construction of a liquid-product storage facility (1), the storage facility comprising a load-bearing structure (10) having an internal space (11) delimited by a load-bearing wall (12) and a sealed tank (20) installed in the internal space (11) of the load-bearing wall (12).

The calculation method (400) is based on an iterative decrease in the dimensions of the spacer elements (40) under the constraint of acceptability criteria, the acceptability criteria comprising planarity criteria limiting deformations of planar facets (224) of the tank (20).

A hydrogen storage system and a method for controlling the same includes a detection device that detects a first hydrogen pressure decompressed by a regulator using a first pressure sensor in the hydrogen storage system and a processor that predicts generation of noise at the regulator based on a change rate of the first hydrogen pressure during hydrogen charging and stops the hydrogen charging.

A method for assisting the management of a vessel comprising at least one tank configured to contain liquefied gas and a vapor phase treatment system capable of sending boil-off gas exiting the tank to a propulsion engine of the vessel or to a gas combustion unit on board the vessel and capable of extracting a portion of the liquid phase contained in the tank and of evaporating this portion in order to send it to the propulsion engine. The method comprises: generating at least one tank management scenario defining an evolution of the pressure of the gas phase contained in the tank along a path of the vessel; computing a cost function that at least depends on a total amount of boil-off gas generated in the tank along the path; and displaying to a user the tank management scenario as a function of the computed cost function.

Method for filling a plurality of cryogenic liquid receiving tanks, using a plurality of mobile source tanks, the method comprising the following steps: transferring a first quantity of cryogenic liquid from a first source tank to a first receiving tank, and simultaneous transfer of a first quantity of vaporization gas present in the first receiving tank to the first source tank; checking at least the distribution condition that the pressure in the first source tank is lower than a predetermined pressure threshold; and if the distribution condition is met, transfer of a second quantity of cryogenic liquid from the first source tank to a second receiving tank, and simultaneous transfer of a second quantity of vaporization gas present in the second receiving tank to the first source tank.

The invention relates to a method for filling a pressurized-gas tank by means of a filling device comprising a gas source, a filling pipe connecting the source to the tank, a flow-rate and/or pressure control valve, an electronic control member configured to bring filling to a stop when an estimated temperature of the gas present in the tank reaches a temperature limit value, the method comprising, prior to the tank being filled, a step of determining the ambient temperature at the filling device, a step of determining the pressure of the gas present in the tank and a preliminary step of estimating the initial temperature of the gas present in the tank, the initial temperature of the gas present in the tank being a value estimated on the basis of the ambient temperature and on the basis of the pressure of the gas present in the tank prior to the tank being filled, the initial temperature of the gas present in the tank being higher than or equal to or lower than or equal to the ambient temperature.

A fuel storage system and a method for detecting a remaining amount of fuel are provided. The fuel storage system may include a storage vessel which accommodates fuel including a solid material and gaseous hydrogen, a sensor that measure a first temperature in the storage vessel and a first internal pressure of the storage vessel, and a controller that predicts a first remaining amount of the fuel based on the first temperature or the first internal pressure and based on a relationship among different values of temperature, different values of equilibrium pressure, and different values of remaining amounts of the fuel as measured by the sensor at different times.