A counterflow heat transfer system comprises a heat exchanger and a flow controller arranged to convey a first fluid through the heat exchanger in a first flow direction and a second fluid through the heat exchanger in a second counterflow direction. The heat exchanger comprises at least one first thermally conductive tube conveying the first fluid and at least one second thermally conductive tube conveying the second fluid. The first and second tubes are wound around one another and in contact with one another in an entwined tubular arrangement.

Disclosed are cooling devices for beverage dispensing systems. The devices include and utilize a slurry of granules and a liquid in order to facilitate heat transfer in the cooling device.

Thermal cycling devices are provided. In one embodiment, a thermal cycling device includes a packed tube comprising an inlet portion defining an inlet and an outlet portion defining an outlet. The packed tube is provided in a double coil arrangement, wherein the double coil arrangement causes radially neighboring turns of the packed tube to have opposing flow directions therethrough. The thermal cycling device further includes a cooling device disposed axially adjacent to the packed tube, and a heating device disposed axially adjacent to the packed tube opposite the cooling device.

A device and method for controlling the temperature of an item to be temperature controlled in a simple manner without a fixing system for fixing a temperature control body to the item to be temperature controlled being additionally necessary. The temperature control body is an inflatable body having a volume which is changeable such that the inflatable body, in the working position, rests against the circumferential wall of the item to be temperature controlled when the inflatable body is in an inflated state with an increased volumetric expansion.

A coil on tube heat exchanger is provided that uses multiple parallel helical coil tubes to limit liquid pressure losses while providing similar performance and production times to previous coil and tube designs. Two or more coil tubes are wrapped together around a center tube in a helical fashion, permitting the heat exchanger to be used in a counter-flow, or contra-flow, implementation. Use of the heat exchanger includes flowing a first liquid, such as waste water, through the center tube and flowing a second liquid through the plurality of channels. Embodiments of the present invention provide reduced pressure loss, higher performance and are generally faster to manufacture than prior heat exchangers.

Energy storage and retrieval systems are disclosed, along with methods of storing and retrieving the energy. The systems include an energy storage system and a trilateral cycle. The energy storage system includes low- and high-temperature energy storage tanks storing one or more energy storage media that exchange heat with a working fluid in both a gradient heat exchanger and a substantially isothermal heat exchanger in the trilateral cycle. Pressure changing devices transport the energy storage medium/media between the storage tanks and through the heat exchangers. The working fluid rejects heat to the energy storage medium and drives a turbine when the system is charging, and the energy storage medium rejects heat to the working fluid when the system is discharging. In some embodiments, the energy storage medium drives a second turbine when the system is discharging.

A spiral heat exchanger features: a cold fluid inlet manifold, a hot fluid inlet manifold and at least one spiral fluid pathway. The cold fluid inlet manifold receives cold fluid and provide cold inlet manifold fluid. The hot fluid inlet manifold receives hot fluid and provide hot inlet manifold fluid. The at least one spiral fluid pathway includes cold spiral pathways configured to receive the cold inlet manifold fluid and provide cold spiral fluid pathway fluid, and hot spiral pathways configured to receive the hot inlet manifold fluid and provide hot spiral fluid pathway fluid. The cold spiral pathways and the hot spiral pathways are configured in relation to one another to exchange heat between the cold spiral pathway fluid and the hot spiral pathway fluid so that the hot spiral fluid pathway fluid warms the cold spiral fluid pathway fluid, and vice versa.

A heat exchanger to exchange heat from a first fluid to a second fluid includes a center manifold to receive the first fluid, a first inner loop having an inner loop inlet and an inner loop outlet, and a first outer loop disposed around the first inner loop, the first outer loop having an outer loop inlet and an outer loop outlet, wherein the inner loop inlet and the outer loop inlet are adjacent, and the inner loop outlet and the outer loop outlet are adjacent.

The present application discloses a heat exchange apparatus and a heat pump system provided with same. The heat exchange apparatus includes a heat exchanger and a refrigerant adjustment container with an opening, the heat exchanger includes a first header, a second header and a plurality of heat exchange tubes, two ends of each heat exchange tube are respectively connected to the first header and the second header so as to connect the first header and the second header, and the opening of the refrigerant adjustment container is either of the first header and the second header. The heat exchange apparatus in the present application has the refrigerant adjustment container for adjusting refrigerant in the system, so as to improve system effectiveness.

Heat exchange apparatus (24, 80) includes first heat transfer tubes (50), contained within an enclosure (43) and coupled to receive a first fluid heated by an energy source (22, 36). Second heat transfer tubes (52) are interleaved with the first heat transfer tubes within the enclosure so as to heat a second fluid contained in the second heat transfer tubes by transfer of heat from the first fluid, and are coupled to output the heated second fluid to drive target equipment (30). A heat storage medium (48) fills the enclosure.