A heat exchanger includes at least one conduit configured to carry a working fluid. The heat exchanger also includes a plurality of chambers in proximity to the at least one conduit, each chamber configured to contain a phase change material (PCM) that expands upon freezing. The at least one conduit and the plurality of chambers are thermally coupled for transfer of thermal energy between the working fluid and the PCM in each chamber. One wall of each chamber is formed of a compliant layer configured to deform to increase a volume of the chamber as the PCM expands upon freezing.

A pressure and/or temperature relief header for use in an HVAC heat transfer coil includes a main body adapted to be secured to bends in fluid coils of the HVAC fluid tube system. The main body includes holes in alignment with holes formed in the bends to enable liquid to pass from the bends into the expansion relief header. The expansion relief headers include a pressure release valve that automatically opens, preferably in response to pressure exceeding a predetermined threshold value or temperature falling below a predetermined value, to release liquid from the expansion relief header and then reseats. A discharge housing collects liquid released through the pressure release valve. A sensor detects the presence of liquid in the discharge housing.

A refrigerator appliance having a dispensing assembly is provided herein. The refrigerator appliance may include a cabinet, a door rotatably mounted to the cabinet, and the dispensing assembly. The dispensing assembly may include a dispenser recess and an outlet conduit. The dispenser recess may be defined along an outer surface of the door and extend in a lateral direction from a first side portion to a second side portion of the door. The outlet conduit may be in selective fluid communication with the dispenser recess to direct a fluid thereto.

An integrated pressure compensating heat exchanger and method of use are provided. The integrated pressure compensating heat exchanger includes an inlet configured to input an internal fluid; a first conductive bellows connected to the inlet, configured to accept the internal fluid from the inlet, configured to transfer heat between the internal fluid and an external fluid, and configured to compensate for a pressure by compressing in length; and an outlet configured to accept the internal fluid from the first conductive bellows and to output the internal fluid.

A flow conduit intended for use in a fouling environment includes at least one solid surface of a thermally adaptive material. The at least one solid surface is configured to undergo a shape change as a result of thermal cycling such the shape change dislodges unwanted material accumulated on the at least one solid surface during operation of the flow conduit in the fouling environment.

Provided is heat exchanger in which a rib of a core plate has a shape that is recessed from a flat surface of a flat body portion, and the rib is provided with: a rib bottom part including a bottom line that is recessed from and parallel to the flat surface of the flat body portion; and a rib inclination part that is positioned between the rib bottom part and a flat part. The rib is positioned so that the rib inclination part overlaps, in the tube stacking direction, the edge of the tube in the tube width direction.

To continue operating a compression refrigerant system even while the system's brazed plate heat exchanger contains, in localized areas, water at or below its atmospheric subfreezing water temperature, a penetrating temperature probe senses the water temperature at a strategic intermediate point between the heat exchanger's water inlet and outlet. The brazed plate heat exchanger comprises a series of corrugated plates stacked and brazed together to create an alternating arrangement of water and refrigerant passages in heat transfer relationship with each other. In some examples, the idea is to take advantage of the principle that water has a lower freezing temperature at relatively high pressure and that the relatively small micro-channel passages of intermediate water passages within the brazed plate heat exchanger can withstand appreciably higher pressure than other areas within the heat exchanger, such as the areas at the heat exchanger's water inlet and water outlet.

A cooling tower louver, including an adjustment module and a fixing module, is provided. Particularly, the adjustment module includes length adjustment assemblies, an angle adjustment assembly, and coupling assemblies, in which the angle adjustment assembly is positioned above the length adjustment assemblies, the coupling assemblies are positioned on a side of the angle adjustment assembly. Furthermore, the fixing module includes slat assemblies and a framework, in which the slat assemblies are located in the framework. Through the collaborative efforts of the adjustment module and the fixing module, it's possible to maintain the cooling tower's air intake capacity while minimizing the ingress of rainwater during wet conditions. The cooling tower system effectively mitigates the risk of equipment damage due to freezing during the winter season. Moreover, the anti-freezing method for the cooling tower streamlines the anti-freezing strategy and offers enhanced convenience in terms of regulation and control.

An anti-freezing pipe having a built-in tube and a high-efficiency heat exchanger using the same, includes a heat transfer pipe made of metal and configured to allow a fluid to move therethrough and a hollow tube located and supported in the heat transfer pipe. The tube has a sealed space defined therein by sealants fitted into both end portions thereof and is provided on an outer diameter surface thereof with a wing formed in a spiral shape, and the heat transfer pipe is 10 provided at an end portion thereof with a stopper to prevent escape of the tube therefrom due to the flow of fluid.

A heat exchanger comprising a matrix with an interior and an exterior. The matrix has an input face and an output face and one or more exterior surfaces that span between the input face and the output face. The primary media flows between the input face and the output face. The heat exchanger has a decongealing path that spans from an inlet across an entire length of the input face, spans the one or more exterior surfaces that span between the input face and the output face, and spans an entire length of the exterior output face to the outlet.