An absorption chiller may include an absorbent circuit in which a liquid absorbent circulates and a working medium circuit in which a liquid working medium circulates. The absorbent circuit may include an absorber and a desorber. The working medium circuit may include an evaporator and a condenser. The absorption chiller may also include a low pressure membrane arrangement and a high pressure membrane arrangement each being permeable to a working medium vapour, impermeable to the liquid working medium and the liquid absorbent, and arranged between the evaporator and the absorber such that it is in contact with the working medium and the absorbent. At least one of the low pressure membrane arrangement and the high pressure membrane arrangement may include a working medium membrane and an absorbent membrane.

An absorption chiller may include an absorbent circuit in which a liquid absorbent circulates and a working medium circuit in which a liquid working medium circulates. The absorbent circuit may include an absorber and a desorber. The working medium circuit may include an evaporator and a condenser. The absorption chiller may also include a low pressure membrane arrangement and a high pressure membrane arrangement each being permeable to a working medium vapour, impermeable to the liquid working medium and the liquid absorbent, and arranged between the evaporator and the absorber such that it is in contact with the working medium and the absorbent. At least one of the low pressure membrane arrangement and the high pressure membrane arrangement may include a working medium membrane and an absorbent membrane.

A system includes an electrochemical regenerator configured to receive a first solution having a first salt concentration and output a second solution having a second salt concentration lower than the first salt concentration and a third solution having a third salt concentration higher than the first salt concentration. The first and second solutions are sent to first and second reservoirs respectively absorb and emit heat in response to a phase change of one of the solutions. The absorption or emission of heat can be used in a heat pump system.

A system includes an electrochemical regenerator configured to receive a first solution having a first salt concentration and output a second solution having a second salt concentration lower than the first salt concentration and a third solution having a third salt concentration higher than the first salt concentration. The first and second solutions are sent to first and second reservoirs respectively absorb and emit heat in response to a phase change of one of the solutions. The absorption or emission of heat can be used in a heat pump system.

Systems and methods for compressor-assisted sorption rate. A sorption system includes a sorber that absorbs and desorbs a refrigerant gas, such as ammonia, onto and from a coordinative complex compound. The system includes an evaporator, a condenser, and a compressor. The temperature and pressure of the gas within the sorber are monitored and the compressor is controlled to adjust the pressure to increase the absorption and desorption rates and increase the thermal cycle speed of the sorption system for applications such as laser systems requiring rapid, periodic cooling.

Systems and methods for compressor-assisted sorption rate. A sorption system includes a sorber that absorbs and desorbs a refrigerant gas, such as ammonia, onto and from a coordinative complex compound. The system includes an evaporator, a condenser, and a compressor. The temperature and pressure of the gas within the sorber are monitored and the compressor is controlled to adjust the pressure to increase the absorption and desorption rates and increase the thermal cycle speed of the sorption system for applications such as laser systems requiring rapid, periodic cooling.

Systems and methods for compressor-assisted sorption rate. A sorption system includes a sorber that absorbs and desorbs a refrigerant gas, such as ammonia, onto and from a coordinative complex compound. The system includes an evaporator, a condenser, and a compressor. The temperature and pressure of the gas within the sorber are monitored and the compressor is controlled to adjust the pressure to increase the absorption and desorption rates and enhance the thermal cycle speed of the sorption system for applications such as laser systems requiring rapid, periodic cooling.

Systems and methods for compressor-assisted sorption rate. A sorption system includes a sorber that absorbs and desorbs a refrigerant gas, such as ammonia, onto and from a coordinative complex compound. The system includes an evaporator, a condenser, and a compressor. The temperature and pressure of the gas within the sorber are monitored and the compressor is controlled to adjust the pressure to increase the absorption and desorption rates and enhance the thermal cycle speed of the sorption system for applications such as laser systems requiring rapid, periodic cooling.

A refrigerator includes a main body that has a storage chamber and a drying chamber; a thermoelectric module that includes a heat absorber and a heat dissipater; a cooling fan that circulates air in the storage chamber to the heat absorber and the storage chamber; a heat-dissipating fan that blows air to the heat dissipater; an air guide that has a passage for guiding air heated by the heat dissipater to the drying chamber; a heater that is disposed in the passage; and a damper that controls a flow of air in the passage between the heat-dissipating fan and the heater. Heat of the heat dissipater transfers to the drying chamber through the passage of the air guide and the damper, thereby being able to dry an object to be dried.

A projector a cooler configured to cool a cooling target based on transformation of a refrigerant into a gas. The cooler includes a refrigerant generator configured to generate the refrigerant and a refrigerant sender configured to send the generated refrigerant toward the cooling target. The refrigerant generator includes a moisture absorbing/discharging member, a first air blower configured to deliver air outside the projector to the moisture absorbing/discharging member, a heat exchanger connected to the refrigerant sender, a heater configured to heat the moisture absorbing/discharging member, and a second air blower configured to deliver, to the heat exchanger, air around a portion of the moisture absorbing/discharging member that is the portion heated by the heater. The heat exchanger, by cooling the air having flowed into the heat exchanger, generates the refrigerant from the air having flowed into the heat exchanger. The moisture absorbing/discharging member is fixed.