An electric machine having an electrically insulative manifold is disclosed. In one example aspect, an electric machine includes a non-electrically conductive manifold. The manifold defines a chamber operable to receive a cooling fluid. The electric machine includes a prime winding in fluid communication with the chamber and one or more secondary windings in electrical communication with the prime winding and in fluid communication with the chamber. Further, the electric machine includes an electric machine terminal extending through the non-electrically conductive manifold and coupled with the prime winding. The electric machine terminal can provide or collect cooling fluid from the chamber of the manifold and can act as the electrical connection point for directing electrical power to or from the windings of the electric machine. The non-electrically conductive manifold electrically decouples the windings of the electric machine despite each winding receiving cooling fluid provided or collected at the manifold.

A battery pack comprises one or more cells 30, a flexible duct 50/230 positioned proximally to the surface of at least one of the one or more cells 30 such that heat can be exchanged between the duct 50/230 and at least one of the one or more cells 30 and a potting means which at least partially surrounds at least a part of the duct 50/230. A method of manufacturing a battery pack comprises providing one or more cells 30, positioning a flexible duct 50/230 proximally to the surface of at least one of the one or more cells 30 such that heat can be exchanged between the duct 50/230 and the at least one of the one or more cells 30, inserting fluid into the duct 50/230 and at least partially surrounding at least a part of the duct 50/230 with a potting means. The potting means may be expandable foam.

A membrane heat exchanger comprising a first planar sheet a second planar sheet coupled to the first planar sheet at least by a seam and at least one fluid chamber defined by the first and second planer sheet and the seam and comprising a first and second end, the fluidic chamber extending a length of the membrane heat exchanger.

A method for producing a microchannel bundle heat exchanger (1) includes providing a multiplicity of tubular microchannels (2); incorporating the microchannels (2) in a weaving device; interweaving the tubular microchannels (2) with a plurality of warp wires (3) in the weaving device, and generating at least one heat exchanger mat (4) from the tubular microchannels (2) which are connected to one another by means of the warp wires (3); shaping at least one heat exchanger pack (8) from the at least one heat exchanger mat (4), in particular by folding and/or rolling up the heat exchanger mat (4); and adhesively bonding the tubular microchannels (2) at two mutually opposite end sides (9, 10) of the heat exchanger pack (8).

A module for constructing therefrom a heat exchanger is provided. The module includes two manifolds and a plurality of parallelly arranged mats spanning between the manifolds. Each mat includes a plurality of heat exchange tubes arranged so as to define a plane, the heat exchange tubes being in fluid communication with the manifolds and spanning therebetween. Each of the manifolds includes selectively sealable end openings formed in facing ends thereof and defining a longitudinal flow path substantially perpendicular to the tubes and parallel with the planes defined thereby. Each of the manifolds further includes selectively sealable side openings on facing sides thereof and each defining a lateral flow path substantially perpendicular to the longitudinal flow path and to the planes defined by the tubes.

An air thermal conditioning system, for at least one of heating air and cooling air, which includes a cross-flow heat exchanger array. The cross-flow heat exchanger array includes a plurality of planar membrane heat exchangers disposed in parallel with a space separating adjacent planar membrane heat exchangers. Each of the planar membrane heat exchangers include a first sheet; a second sheet coupled to the first sheet; and at least one fluid chamber defined by the first and second sheets, with the at least one fluid chamber extending between first and second ends of the planar membrane heat exchangers and opening to a first and second port at the first and second ends respectively.

A heat dissipation device adapted to dissipate heat of a heat source in an electronic system. The heat dissipation device includes a thermally conductive plastic shell and a fluid. The thermally conductive plastic shell has at least one sealed accommodation space. The fluid completely fills the at least one sealed accommodation space of the thermally conductive plastic shell.

A process heat exchange rod for cooling or heating liquids in a process vessel. The rod may have a linear form and extend downward through an upper wall of the process vessel into proximity with the lower floor. The rod internally defines a circulatory flow path for the heat exchange medium, including an outer jacket and a flow diverter having a central through bore and external helical flutes. Heat exchange medium travels down through the central through bore and then back up through helical grooves formed between the flow diverter and the outer jacket, or vice versa. Accurate heating or cooling of the process fluid is attained by modification of the configuration of the heat exchange rod as well as the flow rate and temperature of the heat exchange medium. The components may be injection molded of a polymer, often transparent, having a high heat transfer coefficient.

In embodiments, a heat exchanger includes a tube configured to transfer a first fluid. The tube includes an outer surface configured to exchange heat with a second fluid as the second fluid flows over the outer surface of the tube. The tube also includes an inner surface defining an interior configured to contain and transfer the first fluid, and a plurality of surface features integrally formed as part of the inner surface. The surface features may extend radially inward toward the interior, and are configured to increase a surface area of the inner surface to improve heat exchange between the tube and the first fluid.

A fluid coil includes a tube bundle having a series of straight tubing runs and a series of return bends extending between and fluidically connecting ones of the straight tubing runs, an expansion header fluidically connected to at least some of the return bends and a polymeric material disposed in the expansion header. The polymeric material has an initial shape and is compressible to repeatedly expand and contract between a first volume in which water is present in the tube bundle and a second volume in which the water undergoes a phase change. Contraction of the polymeric material absorbs an increase in volume as the water undergoes the phase change to prevent stressing and rupture of the tube bundle and upon an opposite phase change, the polymeric material returns to its initial shape. The polymeric material can be a pressurizable bladder. A system and method to prevent the rupture of a tube bundle in a fluid coil are also disclosed.