A rotary valve for an adsorption heat pump may include a cylindrical valve body, arranged rotatably about a central axis in a predetermined rotation direction with an outer covering and two front plates. A plurality of counter-directional high temperature connections may be arranged on the outer covering for connecting a high temperature heat source. A plurality of counter-directional medium temperature connections may be arranged on the outer covering for connecting a medium temperature heat sink. A plurality of sorption module connections may be arranged on the front plates for connecting a plurality of corresponding sorption modules. A duct system may pass through the valve body for directing a fluid, and a throttle, integrated into the valve body, may be included for constricting a flow cross-section at a throttle site of the duct system. The duct system may include open ducts and closed ducts.

An adsorption heat pump includes: an evaporator configured to generate coolant vapor; a first adsorber and a second adsorber each containing an adsorbent to adsorb the coolant vapor generated in the evaporator; a condenser configured to condense the coolant vapor generated in any of the first adsorber and the second adsorber; and a control unit. The control unit feeds the condenser with cooling water for condensation of the coolant vapor and feeds the condenser with warm water for evaporation of the coolant at predetermined timing.

An apparatus and corresponding method for heat exchange. The heat exchange apparatus may include an adsorber device. The adsorber device is configured to draw heat from a first heat reservoir and transfer heat to a first heat sink. The heat exchange apparatus may include a heat exchanger fluidly connected to the adsorber device by the working fluid. The heat exchanger transfers heat to a second heat sink. The heat exchange apparatus may include an expansion device fluidly connected to the heat exchanger by the working fluid. The expansion device expands the working fluid, and exchanges heat with a second heat reservoir. The expansion device includes a turbine device for converting at least a part of an exergy of the working fluid during expansion into mechanical work. The heat exchange apparatus may include the adsorber device being fluidly connected to the expansion device by the working fluid.

This invention relates to a chemisorption based energy storage device, able to provide electricity, heating or cooling depending on the desired energy output. The device typically comprises sorbent materials which have an affinity for a refrigerant gas at different temperatures.