An evaporative HVAC apparatus is disclosed. In at least one embodiment, the apparatus provides an at least one housing having an inner surface that defines a substantially tubular-shaped air passage extending therethrough. An absorbent wicking layer is formed immediately adjacent to at least a portion of the inner surface of the housing, and a thermal layer is formed immediately adjacent to an inner surface of the wicking layer. The housing also provides an at least one fluid inlet aperture through which a fluid line extends a distance into the housing so as to be in fluid communication with the wicking layer. Thus, a fluid is selectively delivered to the wicking layer through the fluid line which, in turn, permeates the thermal layer and evaporates into the air located immediately adjacent an exposed inner surface of the thermal layer, thereby affecting the temperature of the air moving through the air passage.

A vertical evaporation device comprising an evaporator made of a vertical panel with a grid of dividers and flanges folded on the four sides thereof joined to a refrigeration tube coil on the rear portion thereof and both being embedded in a support framework, which in turn has a water distributor by means of a hydraulic system with three inlet channels which is joined by means of clipping to the upper side of the device.

Embodiments of the present disclosure relate to a vapor compression system that includes a refrigerant loop, a compressor disposed along the refrigerant loop and configured to circulate refrigerant through the refrigerant loop, a condenser disposed downstream of the compressor along the refrigerant loop, where the condenser includes a plurality of tubes disposed in a shell and a diffusion area configured to enhance thermal energy transfer within the condenser, where the diffusion area is defined by a cavity of the condenser without a tube of the plurality of tubes, and an evaporator disposed downstream of the condenser along the refrigerant loop.

Embodiments of the present invention provide control solutions for data center thermal management and control using an IDEC system. The data center is arranged in a cold air room wall supply and hot air room wall return configuration. The sensors, such as temperature sensors and/or pressure sensors, are utilized to measure and record thermal data. The data is then processed and used to control the IDEC system to adjust operating conditions to satisfy dynamic thermal requirements of the data center. The control functions include: 1) controlling the IDEC system to adjust cooling modes and operating conditions as needed to maintain proper data center thermal environment; and 2) identifying different optimal operating conditions and parameters for the IT room and IDEC system.

A device is presented for an absorption refrigerator or an absorption heat pump having a heat exchanger through which a working medium flows. The device includes a distribution apparatus for a sorbent which is designed to apply the sorbent to a heat exchange surface of the heat exchanger in a refrigerant environment such that the sorbent, which forms a working pair with the refrigerant, at least partially absorbs the refrigerant from the refrigerant environment and emits heat released in the process to the heat exchanger, or at least partially desorbs the refrigerant from the sorbent in the form of one or more jets onto the heat exchange surface, forming turbulent flows of the sorbent on the heat exchange surface.

A heating, ventilation and air conditioning (HVAC) system includes a condenser (18) flowing a flow of refrigerant therethrough and to an output pipe (56) and a falling film evaporator (12) in flow communication with the condenser and having an evaporator input pipe (58) located vertically higher than the output pipe. A plurality of riser pipes (60) connect the output pipe to the evaporator input pipe. The flow of refrigerant flows through selected riser pipes of the plurality of riser pipes as required by a load on the HVAC system.

Embodiments of the present invention provide control solutions for data center thermal management and control using an IDEC system. The data center is arranged in a cold air room wall supply and hot air room wall return configuration. The sensors, such as temperature sensors and/or pressure sensors, are utilized to measure and record thermal data. The data is then processed and used to control the IDEC system to adjust operating conditions to satisfy dynamic thermal requirements of the data center. The control functions include: 1) controlling the IDEC system to adjust cooling modes and operating conditions as needed to maintain proper data center thermal environment; and 2) identifying different optimal operating conditions and parameters for the IT room and IDEC system.

Embodiments of the present disclosure relate to a vapor compression system that includes a refrigerant loop, a compressor disposed along the refrigerant loop and configured to circulate refrigerant through the refrigerant loop, and a heat exchanger disposed along the refrigerant loop and configured to place the refrigerant in a heat exchange relationship with a cooling fluid. The heat exchanger includes a water box portion having a first length, a shell having a second length, a plurality of tubes disposed in the shell and configured to flow the cooling fluid, and a cooling fluid portion having a third length, where the water box portion and the cooling fluid portion are coupled to the shell, such that the first length, the second length, and the third length form a combined length of the heat exchanger that is substantially equal to a target length.

An evaporative HVAC apparatus is disclosed. In at least one embodiment, the apparatus provides an at least one absorbent wicking layer having a first surface and an opposing second surface, and an at least one thermal layer also having a first surface and an opposing second surface. The second surface of the at least one thermal layer is formed immediately adjacent to the first surface of the at least one wicking layer. An at least one fluid line is in fluid communication with the at least one wicking layer. Thus, a fluid is selectively delivered to the wicking layer through the at least one fluid line which, in turn, permeates the at least one thermal layer and evaporates into the air located immediately adjacent the exposed first surface of the at least one thermal layer, thereby affecting the temperature of the air.

An evaporator for an absorption heat pump or a single coolant cooling process comprises a number of stacked plates provided with a pressed pattern to hold the plates on a distance from one another to form a heat exchanging strip, vapor leading spaces and outer walls, the heat exchanging strip being designed such that flow channels are formed by internal surfaces of the strip, said flow channels connecting a heat carrier inlet and a heat carrier outlet, wherein a coolant forms a falling film on external surfaces of the heat carrier channels by being provided above the heat carrier channels by a coolant inlet, wherein coolant being vaporized from the external surfaces by heat from a heat carrier flowing from the inlet to the outlet rapidly enters the vapor leading spaces. The vapor leading spaces are provided between the heat exchanging strip and the outer walls.