A tank for transporting and/or storing a liquefied gas includes: a plurality of walls, each including, in a direction of the thickness of the wall, a thermally insulating barrier and a leak-tight membrane that rests against the thermally insulating barrier and is intended to be in contact with the liquefied gas inside the tank, the thermally insulating barrier including a plurality of self-supporting heat-insulating panels which each includes a block of polymer foam and a plate, a bottom wall of the plurality of walls includes a first portion at least partially surrounding a second portion of the bottom wall, the second portion including drain. The blocks of polymer foam of the second portion have a density greater than a density of the polymer foam blocks of the first portion.

The invention meets the objective by providing an insulated tank system, comprising an inner tank, thermal insulation external to the inner tank, an inlet and an outlet or a combined inlet and outlet from outside the tank to inside the inner tank, for filling and emptying of fluid, wherein the inner tank contain fluid when in operation. The tank system is distinguished in that it further comprises thermal insulation in the form of insulation block elements arranged side by side externally on the inner tank, with a gap between the insulation block elements at least on the external side thereof, wherein the tank system further comprises a support structure comprising one or more block elements, wherein each block element face and contact an insulation block element, directly or via one or more intermediate layers, wherein the support structure comprises structure for lifting the tank via the support structure, wherein the tank can be lifted and handled by merely loading the external insulation block elements facing said block elements without directly loading the inner tank, and wherein thermal contraction or expansion are taken up by the gaps between the block insulation elements.

The invention meets the objective by providing an insulated tank system, comprising an inner tank, thermal insulation external to the inner tank, an inlet and an outlet or a combined inlet and outlet from outside the tank to inside the inner tank, for filling and emptying of fluid, wherein the inner tank contain fluid when in operation. The tank system is distinguished in that it further comprises thermal insulation in the form of insulation block elements arranged side by side externally on the inner tank, with a gap between the insulation block elements at least on the external side thereof, wherein the tank system further comprises a support structure comprising one or more block elements, wherein each block element face and contact an insulation block element, directly or via one or more intermediate layers, wherein the support structure comprises structure for lifting the tank via the support structure, wherein the tank can be lifted and handled by merely loading the external insulation block elements facing said block elements without directly loading the inner tank, and wherein thermal contraction or expansion are taken up by the gaps between the block insulation elements.

A tank for transporting and/or storing a liquefied gas includes: a load-bearing structure, a plurality of walls each including, in a thickness direction of the wall, a thermally insulating layer resting against the load-bearing structure and a sealing membrane resting against the thermally insulating layer. The plurality of walls includes a bottom wall, and a guiding structure configured to receive a tower for loading and/or unloading the liquefied gas contained in the tank. The guiding structure includes a base bearing against the load-bearing structure. The thermally insulating layer includes one self-supporting heatproof panel, and a clearance delimited by a portion of the self-supporting heatproof panel and by the load-bearing structure, the clearance being configured to accommodate part of the base of the guiding structure.

The invention relates to a sealed and thermally insulating tank for storing fluid, comprising, from the outside to the inside of the tank, a secondary thermally insulating barrier and a secondary sealing membrane, the secondary sealing membrane being secured to the secondary thermally insulating barrier, a primary thermally insulating barrier resting against the secondary sealing membrane and a primary sealing membrane resting against the primary thermally insulating barrier, the tank comprising a duct that extends along a longitudinal direction, the duct being delimited on one hand by the secondary thermally insulating barrier and on the other hand by the secondary sealing membrane, a bottom of the duct being at least in part formed by the secondary thermally insulating barrier, the tank further comprising a pressure-drop stopper that is arranged in the duct and extends between the bottom of the duct and the sealing membrane.

Screen-printable metallization pastes for forming thin oxide tunnel junctions on the back-side surface of solar cells are disclosed. Interdigitated metal contacts can be deposited on the oxide tunnel junctions to provide all-back metal contact to a solar cell.

Screen-printable metallization pastes for forming thin oxide tunnel junctions on the back-side surface of solar cells are disclosed. Interdigitated metal contacts can be deposited on the oxide tunnel junctions to provide all-back metal contact to a solar cell.

A hydrogen tank having a tank structure at least partially delimiting a tank space and comprising a cooling shield formed in a lightweight construction. A conduit system, connected to the tank space, of a pressure relief system for discharging gaseous hydrogen from the tank space is formed in the cooling shield. At least one para-ortho catalyst for accelerated conversion of parahydrogen into orthohydrogen is arranged in the conduit system. A vehicle is provided having a hydrogen drive and such a hydrogen tank. A method for cooling the tank structure of such a hydrogen tank is provided.

A sealed and thermally insulating tank for storing a low-temperature liquefied gas, having an insulating box-section with a bottom panel coming into abutment on a support wall, by means of sealant beads disposed between the support wall and the bottom panel, the sealant beads being disposed in the form of at least one closed outline delimiting at least one confined space between the support wall and the bottom panel, the bottom panel having at least one through passage leading into the confined space to allow gas to circulate between the confined space and an internal space of the insulating box-section.

The invention relates to a tank wall (1) fixed onto a supporting wall (3) wherein the secondary insulating barrier comprises a plurality of secondary rows (A, B, C) parallel to a first direction and juxtaposed in a second direction at right angles to the first direction according to a repeated pattern. The secondary sealed membrane comprises a plurality of strakes (21) parallel to the first direction, the size of the repeated pattern of the secondary rows (A, B, C) being an integer multiple of the size of a strake (21) in the second direction. The primary insulating barrier (5) comprises a plurality of primary rows parallel to the first direction, and the primary sealed membrane has first corrugations (56) parallel to the first direction and spaced apart by a first regular spacing (58), wherein the size of the repeated pattern of the primary rows is an integer multiple of said first regular spacing (58).