Methods, systems, and apparatus for monitoring a cylinder. The system includes a plurality of sensors connected to the cylinder and configured to detect deformation data associated with the cylinder. The system includes a controller communicatively coupled to the plurality of sensors. The controller is configured to determine a damage value based on the detected deformation data when the cylinder endures impact damage. The controller is configured to communicate a notification when the damage value exceeds an impact damage threshold. The system includes a filling controller communicatively coupled to the plurality of sensors. The filling controller is configured to control a valve for filling the cylinder with a fluid. The filling controller is configured to detect damage to the cylinder above a specified threshold as the cylinder is filled with the fluid. The filling controller is configured to automatically perform a safety action when the damage to the cylinder is detected.

Some embodiments of the presently disclosed subject matter relate to a method and system for the real-time calculation of the amount of residual chemical energy in a non-refrigerated, pressurised tank containing liquefied natural gas, without a composition of the liquefied natural gas having to be determined.

A vehicle (100, 200, 300, 400) includes a chassis (110, 210, 310, 410), a gas storage tank (120, 220, 320, 420) for a gas, and a gas storage tank (120, 220, 320, 420) arranged between the chassis (110, 210, 310, 410) and the gas storage tank (120, 220, 320, 420) and connected to the chassis (110, 210, 310, 410) and the gas storage tank (120, 220, 320, 420), the first weighing device (140, 240, 340, 440) being arranged to measure a force exerted by the gas storage tank (120, 220, 320, 420) on the first weighing device (140, 240, 340, 440).

The invention relates to a test apparatus and a method for testing a load change of a compressed-gas accumulator, said method comprising the steps of: i. arranging the compressed-gas accumulator to be tested inside a test container; ii. increasing the pressure of a compressed gas in the compressed-gas accumulator to a test pressure; iii. measuring the elastic deformation of the compressed-gas accumulator, which is caused by the test pressure of the compressed gas; iv. Increasing the pressure of a pressure medium in the test container such that the elastic deformation of the compressed-gas accumulator is reduced by the pressure of the pressure medium on the compressed-gas accumulator; v. lowering the pressure of the pressure medium in the test container; and vi. repeating steps iii. to v.

A system includes a source of pressurized fluid, a primary pressure vessel disposed in fluid communication with the source, and a supplemental pressure vessel disposed in fluid communication with the source and in fluid communication with the primary pressure vessel. The primary pressure vessel has a first life expectancy duration and includes a first structural characteristic. The supplemental pressure vessel has a second life expectancy duration shorter than the first life expectancy duration and includes a second structural characteristic. A method uses a supplemental pressure vessel to predict impending failure of a primary pressure vessel. The method includes connecting a primary pressure vessel to a source of pressurized fluid, fluidly connecting a supplemental pressure vessel with the source and with the primary pressure vessel, and exposing the supplemental pressure vessel to a first fatigue load to cause its failure before failure of the primary pressure vessel occurs.

A high-pressure gas container which comprises a composite wall defining a gas storage chamber, the composite wall comprising an inner lining and a carbon-fiber structure surrounding the inner lining. The high-pressure gas container comprises at least one electrical conductor extending in the composite wall or on an inner or outer face of the composite wall, the at least one electrical conductor comprising a connection element to connect to a detection device that detects deformations of the container.

The invention relates to a pressure vessel system comprising a pressure vessel for storing a gas under pressure, at a potential leakage interface of the pressure vessel, one or more gas sensitive parts configured to undergo a modification when the gas passes along the potential leakage interface; said leakage interface being an interface within the pressure vessel; and one or more detection modules configured to detect a modification of the one or more gas sensitive parts. The invention also relates to a connection assembly comprising a first connection part and a second connection part, said first and second connection part being configured to realize a gas tight connection; one or more gas sensitive parts arranged at a connection interface between the first connection part and the second connection part, and one or more detection modules configured to detect a modification of the one or more gas sensitive parts.

A CNG storage tank system with secondary containment and monitoring, such that any leaks from a primary containment tank are initially contained within a secondary containment tank, detected by a CNG sensing system in communication with a monitoring station, such that leaked CNG in the form of methane can be safely and controllably vented to the atmosphere or into CNG capture tanks. In addition, a tank expansion detection system may be employed to detect excessive expansion of the primary containment tank.

A system that controls an impact load resulting from a fluid under an internal/external force is provided. The system senses an impact load, of a fluid under an internal/external force and attenuates the impact load. The present invention includes a floating means arranged horizontally inside an amount of fluid in an open space or in a sealed interior, a position adjustment means is vertically connected to the floating means and positioned inside the fluid, a sensing means disposed inside the fluid, on the floating means, the position adjustment means, or a structure in the periphery senses a measurement object. A controller predicts/monitors and predicts/controls fluid dynamics-related forces, hull stress, six-degree-of-freedom movements, and positions in connection with a transportation means or maritime structure. The floating means, the position adjustment means, and the sensing means are installed thereon, and use the value from the measurement object transmitted from the sensing means.

The present invention is to properly manage life of an accumulator and extend the life of the accumulator. A gas supply system includes a control section, an acquiring section, a classifying section, and a judging section. The acquiring section acquires stress amplitude of accumulators from a pressure difference between first pressure on the gas storage side and second pressure on the gas lead-out side. The classifying section classifies the stress amplitude into a plurality of groups. The judging section divides the calculated acquirement number n.sub.i of the stress amplitude for each of the groups by the predetermined breaking cycle number N.sub.i, and determines a fatigue degree n.sub.i/N.sub.i. In a case where this value becomes a predetermined threshold value or more, the judging section judges that the accumulator comes to the end of the life.