The invention relates to a system for pumping a refrigeration mixture for absorption heat pump generators, comprising a support which integrates a membrane pump and a hydraulic pump for actuating the membrane pump in a single component, and using the driving feedback signals of the actuator motor, determines the existing fluid-dynamic conditions during the operation of the heat pump.

A solar powered absorption cooling system employing refrigerant-absorbent solutions such as water and lithium bromide and hybrid storage capabilities, and a method of employing the system in refrigeration and air conditioning units. The system includes a first temperature control valve and second temperature control valve that together regulate the flow of solar heating fluid into the generator and substantially reduce absorbent crystal formation.

An absorption chiller includes a heating medium supply pipe configured to supply a heating medium from a heating medium pipe to a cooling water pipe; a cooling water discharge pipe configured to discharge a cooling water from the cooling water pipe to the heating medium pipe; a control valve provided on the heating medium supply pipe and the cooling water discharge pipe, respectively; and a controller configured to cause the control valve to be opened and to cause the heating medium in the heating medium pipe to be introduced into the cooling water pipe, when a temperature detected by a cooling water temperature detector is equal to or lower than a predetermined temperature, in a wet lay-up state including a state in which a cooling water inlet shut-off valve and a cooling water outlet shut-off valve are closed and the cooling water pipe is filled with the cooling water.

A heat transfer method uses a heat transfer system including: a heat source unit in which heat is exchanged between a heat transfer medium and a heat source; a utilization unit in which heat is exchanged between the heat transfer medium and a temperature adjustment target; and a first flow path and a second flow path that connect the heat source unit and the utilization unit. The heat transfer medium flows through the first flow path from the heat source unit to the utilization unit, and flows through the second flow path from the utilization unit to the heat source unit. In the heat transfer method, inorganic hydrate slurry, in which an inorganic hydrate that absorbs heat when dissolved in water is mixed with water, is used as the heat transfer medium.

A heat exchanging device includes a regenerator that heats an absorbent by external energy and generates a vapor refrigerant by evaporating a refrigerant from the absorbent, a condenser that generates a liquid refrigerant by cooling and liquefying the vapor refrigerant, an evaporator that generates a vapor refrigerant by vaporizing the vapor refrigerant, an absorber that absorbs the liquid refrigerant into the absorbent, and first and second cover members arranged opposite to each other. The evaporator absorbs heat from a space on a second cover member side in a space between the first and second cover members through the second cover member. The absorber dissipates the heat from a space on a first cover member side in the space between the first and second cover members through the first cover member, and circulates the refrigerant and the absorbent.

The present invention concerns a method of refrigerating a housing to a target temperature according to which: an evaporator is placed in said housing; said evaporator is placed in fluid communication with a thermochemical reactor Ri, simultaneously, the heat produced at said reactor Ri is evacuated; Characteristically, at least n>1 other thermochemical reactors are provided; I) the pressure Pevi in said evaporator after it is placed in fluid communication with said thermochemical reactor Ri, and the temperature of said thermochemical reactor Ri connected to said evaporator, are determined; II) when the temperature difference DTRi between the temperature of said reactor Ri connected to said evaporator and the equilibrium temperature TeSi of said reactive mixture contained in said thermochemical reactor Ri at the pressure Pevi of said evaporator is equal to a first predetermined differential and/or when the temperature difference DTev between said evaporator and the interior of said housing is equal to a second predetermined differential, said reactor Ri is isolated from said evaporator and said evaporator is placed in fluid communication with at least one thermochemical reactor Ri+1 the pressure whereof is less than Pevi and/or the temperature is less than a predetermined value, simultaneously, all or part of the heat that is produced at said reactors Ri+1 connected to said evaporator is also evacuated, III) steps I and II are repeated with reference to the thermochemical reactor Ri+1 in fluid communication with said evaporator (E) until the target temperature in said housing C is obtained.

A climate-control system can be used to heat or cool a space. The climate-control system may include first and second vessels between which refrigerant and co-fluid may be circulated. The refrigerant may be absorbed into the co-fluid within the first vessel at a first rate. The refrigerant may desorb from the co-fluid within the second vessel at a second rate. Ultrasonic energy may be used to adjust the second rate to substantially match the first rate.

A determination device able to determine a cause of generation of gas with a simple configuration is provided. The determination device includes a pressure gauge that detects pressure in a gas storage chamber that stores non-condensable gas generated in an absorber of an absorption refrigerator, and a hydrogen sensor that detects an amount of hydrogen discharged from the gas storage chamber. Further, a determining unit determines a cause of generation of the non-condensable gas stored in the gas storage chamber based on a detection result of the hydrogen sensor and a detection result of the pressure gauge.

The present invention relates to a triple-effect absorption chilling apparatus adopting a structure of an anti-parallel cycle in which an absorber and a first regenerator are connected in series, a second regenerator and a third regenerator are connected in parallel with the first regenerator, and the solution through the second regenerator and the third regenerator is returned to the absorber. Therefore, according to the present invention, it is possible to improve efficiency by acquiring a higher coefficient of performance than conventional absorption refrigerators, and to reduce energy consumption.

A method for real-time detecting and dealing with ammonia leakage of a mini diffusion-absorption ammonia refrigerating apparatus used for refrigerators, wine cabinets or freezers comprising a main container body; the rear portion of the main container body is provided with a mini diffusion-absorption ammonia refrigerating apparatus; at least one high-sensitivity ammonia sensor is disposed in the refrigerating apparatus; the ammonia sensor is connected to a control panel; after detecting the concentration of ammonia gas, collecting and processing the data, many means can be initiated to prevent ammonia gas from being leaked, achieving a precise judgement and an effective treatment.