A rack cover assembly including a first side cover and a second side cover. The first side cover may include a first tensioner and a first flexible rectangular sheet. The first tensioner may be coupled to the first flexible rectangular sheet at or near a first lateral edge. The first tensioner may include a first tensioner height that is less than a first sheet height between the first top edge and the first bottom edge. The second cover may include a second tensioner and a second flexible rectangular sheet configured to couple with the first flexible rectangular sheet. The second tensioner may be coupled to the second flexible rectangular sheet at or near a second lateral edge. The second tensioner may include a second tensioner height that is less than a second sheet height between the second top edge and the second bottom edge.

Telecommunications enclosures are described in this document. In one aspect, a telecommunications enclosure includes side panels having seals and an enclosure top connected, independent of a frame, to top ends of the side panels. The enclosure top has an enclosure top outer end that extends between the side panels and includes a seal. An interior panel is connected, independent of a frame, to side panels and has an interior panel outer end that extends between the side panels. The interior panel is separated from the enclosure top by a first distance and separated by a second distance from bottom ends of the side panels. A removable door is formed to engage the seals when the removable door is secured to the frameless telecommunications enclosure.

A cabinet liquid cooling system is configured to dissipate heat of a cabinet. A flow allocation unit is installed on a single side of the cabinet, is located in space between a side wall of the cabinet and a mounting bar of the cabinet, and is provided with a liquid inlet and a liquid outlet. A liquid cooling system (LCS) control unit is installed at the bottom of the cabinet and cyclically supplies liquid to the flow allocation unit using the liquid inlet and the liquid outlet. A liquid supply branch includes a liquid delivery pipe and a liquid return pipe. A node pipe includes a liquid inlet pipe and a liquid outlet pipe. Both the liquid inlet pipe and the liquid outlet pipe are connected to the corresponding liquid delivery pipe and liquid return pipe using the quick male connector and the quick female connector.

Telecommunications enclosures are described in this document. In one aspect, a telecommunications enclosure includes side panels having seals and an enclosure top connected, independent of a frame, to top ends of the side panels. The enclosure top has an enclosure top outer end that extends between the side panels and includes a seal. An interior panel is connected, independent of a frame, to side panels and has an interior panel outer end that extends between the side panels. The interior panel is separated from the enclosure top by a first distance and separated by a second distance from bottom ends of the side panels. A removable door is formed to engage the seals when the removable door is secured to the frameless telecommunications enclosure.

A rack cover assembly including a first side cover and a second side cover. The first side cover may include a first tensioner and a first flexible rectangular sheet. The first tensioner may be coupled to the first flexible rectangular sheet at or near a first lateral edge. The first tensioner may include a first tensioner height that is less than a first sheet height between the first top edge and the first bottom edge. The second cover may include a second tensioner and a second flexible rectangular sheet configured to couple with the first flexible rectangular sheet. The second tensioner may be coupled to the second flexible rectangular sheet at or near a second lateral edge. The second tensioner may include a second tensioner height that is less than a second sheet height between the second top edge and the second bottom edge.

An assistance apparatus according to the disclosure generates monitor area data on the basis of dimension data of rack rows that are each constituted by a plurality of racks and that are arranged in a first direction in a three-dimensional space, the dimension data including the length of each rack row in the first direction and the height thereof in a second direction perpendicular to the first direction, interval data that includes an interval, in a third direction, between the rack rows adjacent to each other in the third direction, the third direction being perpendicular to the first and second directions, field-of-view angle data that includes the field-of-view angle of each temperature sensor, and temperature sensor position data that indicates certain temperature sensor positions; and includes a display control unit that displays monitor coverage information on a display device on the basis of the monitor area data.

Cooling systems for devices arranged in rows are disclosed. An example cooling system includes an inflatable air duct to be positioned above a cold aisle defined between two rows of electronic equipment. The inflatable air duct is to be air permeable to deliver conditioned air into the cold aisle. The electronic equipment has fans to force cool air within the cold aisle through the electronic equipment to adjacent hot aisles on opposite sides of the two rows of the electronic equipment. The inflatable air duct to be spaced apart from the rows of computers such that the cold aisle is in unobstructed fluid communication with the adjacent hot aisles over top of the rows of electronic equipment. The conditioned air delivered from the inflatable air duct to substantially prevent a mixing of warm air in the hot aisles with the cool air in the cold aisle.

A rack cover assembly including a first side cover and a second side cover. The first side cover may include a first tensioner and a first flexible rectangular sheet. The first tensioner may be coupled to the first flexible rectangular sheet at or near a first lateral edge. The first tensioner may include a first tensioner height that is less than a first sheet height between the first top edge and the first bottom edge. The second cover may include a second tensioner and a second flexible rectangular sheet configured to couple with the first flexible rectangular sheet. The second tensioner may be coupled to the second flexible rectangular sheet at or near a second lateral edge. The second tensioner may include a second tensioner height that is less than a second sheet height between the second top edge and the second bottom edge.

Electrical power is provided to power consuming, heat-exhausting devices by multiple gas-fueled electrical power sources located near such devices. Exhaust heat from such devices is utilized as intake cooling air for the gas-fueled power sources, thereby excluding them from cooling capacity requirements. The gas piping delivering gas to gas-fueled power sources is positioned so as to be within hot aisles comprising exhaust heat. The gas piping is located up high for lighter than air gasses and near the floor for heavier than air gasses, with leak detection located nearby. Additionally, gas piping is externally coated with material that visually indicates a leak. By locating gas piping in the hot aisle, exhausted heat increases temperature and, thereby, pressure of the gas, resulting in more efficient gas distribution through the piping and preventing valve freezing. Furthermore, the gas piping is located after potential ignition sources in the airstream.

In one aspect, conduction cooled modules are described herein. In some implementations, a conduction cooled module comprises first and second external support structures arranged in facing opposition to one another, forming a component envelope therebetween. In some implementations, the modules are configured to contact at least one cold plate and to retain at least one printed wiring board in the component envelope in between the first external support structure and the second external support structure.