A heat exchanger for a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a shell having an inlet configured to receive refrigerant and an outlet configured to output the refrigerant. The heat exchanger also includes a refrigerant distributor disposed within the shell, and multiple evaporating tubes disposed within the shell and positioned below the refrigerant distributor. The refrigerant distributor includes a perforated plate having multiple holes, each hole extends from a top surface of the perforated plate to a bottom surface of the perforated plate, and a center point of each hole is substantially aligned with a centerline of a respective evaporating tube.

Embodiments of this disclosure provide a refrigerant distributor and an evaporator including the refrigerant distributor. The refrigerant distributor (4) includes: a box body (42); a refrigerant inlet (41) arranged on an upper surface (421) of the box body (42); liquid exit openings (46) evenly arranged on a lower surface (422) of the box body (42); and end plates arranged at both ends of the box body (42) in a length direction and enclosing the box body (42) from the two ends; wherein, in a height direction from the lower surface (422) of the box body (42) to the upper surface (421) and within a predetermined height range starting from the lower surface (422), a width of the box body (42) increases gradually; and a pre-distributor (3) is arranged inside the box body (42). The embodiments are advantageous to even distribution of the refrigerant, thereby improving heat exchange effect of the evaporator.

An upstream heat exchange unit is disposed upstream of the airflow direction. An downstream heat exchange unit is disposed downstream of the upstream heat exchange unit. When the heat exchanger functions as an evaporator, a gas outlet pipe is an upstream refrigerant outlet that is located adjacent to the other end of upstream flat pipes of the upstream heat exchange unit, and a gas outlet pipe is a downstream refrigerant outlet that is located adjacent to the other end of downstream flat pipes of the downstream heat exchange unit. First resistance to refrigerant flow in the upstream heat exchange unit and second resistance to refrigerant flow in the downstream heat exchange unit are adjusted in order that the degree of superheating of refrigerant at the downstream refrigerant outlet is smaller than the degree of superheating of refrigerant at the upstream refrigerant outlet.

The present invention relates to a batch reactor system designed to conduct heat-induced food-processing transformations. Particularly, the invention describes a Recirculation Flow-Loop Batch (RFLB) Reactor for conducting high-temperature transformations, preferably at short conversion times, which involve non-Newtonian high-viscosity formulations, where the reactants are preferably natural food ingredients. The invention further relates to a method for reducing burn-on effects of ingredients of the formulation when heated and cooled in a RFLB reactor.

A laser weapon system is described. Particularly, embodiments describe subsystems of a laser weapon system including those necessary for laser generation, operational control, optical emission, and heat dissipation configured to provide a lightweight unit of reduced dimensions.

A heat exchanger includes a heat exchange tube (10) and a first water collecting tank (20). The first water collecting tank (20) is provided on the heat exchange tube (10), a first water diversion hole (21) is provided at a bottom portion of the first water collecting tank (20), the heat exchange tube (10) passes through the first water diversion hole (21), and the first water diversion hole (21) has a diameter greater than an outer diameter of the heat exchange tube (10). By providing the first water collecting tank (20), and making the heat exchange tube (10) pass through the first water diversion hole (21) provided on the first water collecting tank (20), and leaving a gap between the heat exchange tube (10) and the first water diversion hole (21), the water in the first water collecting tank (20) evenly flows into the first water diversion hole (21).

Heat exchanger fins and heat exchangers are disclosed. The heat exchanger fins disclosed herein comprise louvers and winglet-type vortex generators arranged to improve heat transfer efficiency.

An outdoor unit for a refrigeration apparatus includes: a fan that provides an air flow; a casing that houses the fan and that includes a blow-out port through which the air flow is blown; a first heat generating component that generates heat when being energized; a first board on which the first heat generating component is mounted; an electric component box that houses the first board; and a first cooler that cools the first heat generating component and that includes: a heat pipe in which a coolant is sealed and that is thermally connected to the first heat generating component; first heat radiating fins on a flow path of the air flow and that exchange heat with the air flow; and a main body interposed between the heat pipe and the first heat radiating fins to thermally connect the heat pipe to the first heat radiating fins.

A laser weapon system is described. Particularly, embodiments describe subsystems of a laser weapon system including those necessary for laser generation, operational control, optical emission, and heat dissipation configured to provide a lightweight unit of reduced dimensions.

A discontinuously operating desublimator for the recovery of products from gas mixtures is disclosed having a housing including an inner cooling line and a housing wall, inwardly directed lamellae arranged on an inside of the housing wall which can be cooled for the desublimation of the product by a cooling medium conducted through ducts on the housing wall. The housing is cylindrical and enables the product to be melted down by a change of pressure.