Provided is a measure against a refrigerant leak. A heat load processing system includes: a heat exchanger unit including a heat exchanger; a refrigerant leak detector; and a controller that controls an operation of a ventilator. The heat exchanger is connected to a refrigerant pipe through which a refrigerant flows and a heat medium pipe through which a heat medium flows, and configured to cause the refrigerant and the heat medium to exchange heat with each other. The refrigerant leak detector detects a refrigerant leak in the heat exchanger unit. The ventilator ventilates in a facility device room where the heat exchanger unit is installed. When a refrigerant leak is detected by the refrigerant leak detector, the controller executes a process (a refrigerant leak third control) of increasing a ventilation air volume of the ventilator.

A vapor compression system includes a heat exchanger configured to facilitate heat transfer between a refrigerant and a conditioning fluid. The vapor compression system also includes an expansion valve disposed along a conduit coupled to the heat exchanger. The conduit is configured to direct a flow of the refrigerant into the heat exchanger. Additionally, the vapor compression system includes a sensor configured to provide feedback indicative of a temperature of the conditioning fluid exiting the heat exchanger and a controller including a memory and processing circuitry. The processing circuitry is configured to receive a signal indicative of the temperature of the conditioning fluid exiting the heat exchanger from the sensor and adjust operation of the expansion valve based on the signal.

A tube bundle assembly includes at least one tube and a baffle. The baffle includes at least one hole for receiving the at least one tube. The at least one hole has a non-uniform diameter such that only a portion of a periphery of the at least one hole is positionable in contact with the at least one tube.

A shell and plate heat exchanger includes a shell forming an internal space, and a plate stack housed in the internal space. The plate stack includes a plurality of heat transfer plates stacked and joined together. The shell and plate heat exchanger allows a refrigerant that has flowed into the internal space to be condensed. A refrigerant channel communicates with the internal space and allows the refrigerant to flow through. A heating medium channel is blocked from the internal space and allows a heating medium to flow through. The refrigerant channel and the heating medium channel are alternately arranged between adjacent heat transfer plates. A meandering portion is provided in at least a lower portion of the plate stack. The meandering portion is configured to meander the refrigerant condensed on a surface of each of the heat transfer plates. The meandering portion is provided by processing the heat transfer plates.

A deflector for a condenser. The condenser has an inlet in communication with a compressor, and a deflector for guiding a refrigerant gas flow from the compressor is arranged in the condenser and at a position close to the inlet. The deflector is provided with a deflecting structure projecting toward the inlet, and the deflecting structure is configured as impermeable to the refrigerant gas flow.

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 and configured to condense vapor refrigerant to liquid refrigerant, a subcooler coupled to the condenser, where the subcooler is external of a shell of the condenser, and where the subcooler is configured to receive the liquid refrigerant from the condenser and to cool the liquid refrigerant to subcooled refrigerant, and an evaporator disposed downstream of the subcooler along the refrigerant loop and configured to evaporate the subcooled refrigerant to the vapor refrigerant.

A tube-in-tube heat exchanger utilizes a selectively permeable tube having a selective permeable layer to allow the refrigerant to transfer into an ionic liquid to generate heating or cooling. The ionic liquid then provides heating or cooling to a heat transfer fluid through a non-permeable layer or tube. The system may be configured as a shell and tube design, with the third fluid free to flow on the outside of the shell, or as a shell and tube-in-tube, with a central tube containing a first liquid, a second tube containing a second liquid, and an outer shell containing the third liquid. The selectively permeable tube may include an anion or cation selectively permeable layer and this layer may be supported by a support layer or tube.

A shell and plate heat exchanger includes a shell and a plate pack. The shell defines a cavity configured to receive a first fluid and a second fluid. The plate pack is arranged inside the cavity. The plate pack has a plurality of heat exchanger plates. Each of the heat exchanger plates has two sides facing in opposite directions in a thickness direction of the heat exchanger plate. At least one of the sides of at least one of the heat exchanger plates has a surface roughness of between 5 μm and 100 μm.

The group of inventions relates to heat exchange apparatus, and more particularly to condenser devices. The technological result of the group of inventions is that of reducing the risk of an increase in thermal resistance between the tube-side and shell-side heat transfer fluids of a shell and tube condenser. A condenser comprises a housing with tubes that have grooves on the outer surface thereof, baffles, and inlet and outlet manifolds for tube-side and shell-side heat transfer fluids. In contrast to the prior art, the tubes are coated on the outside with a material having a low wetting coefficient, and the distance between the baffles decreases from the shell-side heat transfer fluid inlet manifold to the shell-side heat transfer fluid outlet manifold. The condenser further differs from the prior art in that the tubes have protuberances on the inner surface thereof and are coated on the inside with a material having a high adhesion resistance coefficient.

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 and configured to condense vapor refrigerant to liquid refrigerant, a subcooler coupled to the condenser, where the subcooler is external of a shell of the condenser, and where the subcooler is configured to receive the liquid refrigerant from the condenser and to cool the liquid refrigerant to subcooled refrigerant, and an evaporator disposed downstream of the subcooler along the refrigerant loop and configured to evaporate the subcooled refrigerant to the vapor refrigerant.