The invention relates to a method for executing an alternating evaporation and condensation process of a working medium on a heat transfer surface provided simultaneously as an evaporation and condensation surface. The method is characterized in that, during a respective operating cycle from in each case an condensation process and in each case an evaporation process, a condensate film of the working medium which forms during the condensation process is stored permanently in situ on the heat transfer surface and is then evaporated from the heat transfer surface during the evaporation process. In terms of the apparatus, the heat transfer surface (2) is in the form of an in-situ store for a condensate film (6) of the working medium which covers the heat transfer surface and does not drip off and remains on the heat transfer surface during the condensation process and evaporates during the evaporation process.

An evaporator set, preferably for a thermally driven adsorption device. In an evaporator set that can be connected an easily output-scalable modular thermally driven condenser set and, as a result, can be used simultaneously as a heat or cold store, a liquid collector is connected via a blockable expansion valve with an evaporator for cooling a fluid, wherein the liquid collector, the expansion valve and the evaporator form a structural unit, and wherein the liquid collector has a fluid inlet for and the evaporator a fluid outlet to a thermally driven condenser set.

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 guide plate having depressed portions is provided between an array of heat exchanger tubes, herein after tubes, arranged horizontally side-by-side and a next lower array of tubes arranged horizontally side-by-side, and is positioned with the lowest parts of the depressed portions near crest portions of respective lower tubes. The guide plate conveys a liquid D on outer surfaces of respective upper tubes onto similarly positioned lower tubes even when the tubes move in a right-and-left direction. A falling film heat exchanger installed in a ship, an offshore structure or the like can avoid reduction in heat exchange performance, even when the ship or the like inclines and swings, by substantially evenly distributing and dropping a liquid onto the crests of the tubes and causing the liquid dropped from the tubes located in an upper array to fall onto the tubes located in the next lower array.

The present invention relates to a refrigerant circuit for a refrigerator and/or freezer, with at least one body and with at least one cooled interior space arranged in the body, wherein the refrigerant circuit includes at least one evaporator and at least one condenser as well as at least one compressor, wherein the condenser is partly or completely arranged in a liquid bath that at least partly absorbs the condensation heat in operation of the refrigerant circuit.

A sorption module may include a housing enclosing a working chamber including a sorption zone and a phase change zone arranged therein. The sorption module may also include a sorption structure, which may be arranged in the sorption zone and coupled in a heat-transmitting manner to a sorption path for guiding a sorption path medium, and a phase change structure, which may be arranged in the phase change zone and coupled in a heat-transmitting manner to a phase change path for guiding a phase change path medium. The sorption module may further include a control device configured to control a fluidic connection through which a working medium may be reversibly displaceable between the sorption zone and the phase change zone. The control device may include an actuator configured to control the fluidic connection depending on an adjustment of the actuator and an actuating drive configured to adjust the actuator.

The invention relates to an adsorption module, consisting of at least one sorption unit and at least one evaporator/condenser unit, each with inlet and outlet ports for a fluid heat transfer medium, said units being in the same or separate vacuum-tight housings. According to the invention the housing is flat and can be joined to multiple flat housings in a stacked arrangement with a common steam duct.

The invention relates to a method for operating a cooling system, in which a cooling agent is prepared in a reservoir of an evaporator device (1) of a single- or multi-stage sorption cooling system, a fluid to be cooled is cooled by having a heat exchanger of the evaporator device (1) effect a cooling heat transfer from the fluid to be cooled to the cooling agent for cooling purposes, and the cooling heat transfer causes the cooling agent to at least partially evaporate on the heat exchanger, and the evaporated cooling agent is relayed to a liquefier device (2), wherein the cooling heat transfer is improved by conveying external thermal energy provided by an external heat source (10) to the cooling agent, specifically in addition to and separately from the cooling heat transfer, and thereby initiating bubble formation that supports cooling heat transfer in the cooling agent in the reservoir, specifically by inducing bubble formation in conjunction with supplying the external thermal energy or intensifying bubble formation triggered by the cooling heat transfer. In addition, the invention relates to a cooling system in single- or multi-state configuration.

A temperature controller for a sorption system having an evaporator to produce a gas, a sorber containing a sorption material to sorb the gas during a sorption phase, a flow channel extending between the evaporator and sorber to provide a gas pathway connecting them, a valve to control the rate of gas flow in the flow channel, and a temperature sensor positioned to measure the temperature of an evaporator surface or the air adjacent thereto indicative of an evaporator surface temperature, and generate a temperature signal. The controller includes an inflatable member having first and second inflation states, and a control unit configured to evaluate the temperature signal and in response control the state of inflation of the inflatable member and thereby the operation of the valve to control the rate of gas flow between the evaporator and sorber through the gas pathway.

A transport refrigeration system (TRS) and method of operating a TRS having a sorption subsystem are disclosed. The TRS includes a refrigeration subsystem and a sorption subsystem. The refrigeration subsystem includes a refrigerant, a compressor, a refrigerant condenser, a refrigerant expansion device, and a refrigerant evaporator in fluid communication such that the refrigerant can flow therethrough. The sorption subsystem includes a heat transfer fluid, a heat source, a boiler, a sorption condenser, a sorption expansion valve, a sorption evaporator, and a pump in fluid communication such that the heat transfer fluid can flow therethrough. The sorption evaporator is in thermal communication with the refrigeration subsystem.