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US 5,586,447 AGranted
Concentration control in an absorption chiller
AssigneeGas Research Institute
InventorsLee L. Sibik, Mark D. Berget
Life of this patent
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AssigneeGas Research Institute
InventorsLee L. Sibik, Mark D. Berget
Estimating the term…
A process for controlling an absorbent-refrigerant solution concentration in an absorption cooling system to prevent crystallization of the solution in which the crystallization temperature of the absorbent-refrigerant solution is calculated and the temperature of an absorbent-enriched solution, or strong solution, from the absorption unit heat exchanger is measured. Based upon the crystallization temperature and the measured absorbent-enriched solution temperature, the concentration of the absorbent is calculated using an iteration algorithm. Based upon the calculated concentration of absorbent in the absorbent-enriched solution, the concentration of the absorbent-enriched solution is adjusted by adjusting the heat input to the absorption system generator to prevent crystallization of the absorbent.
In an absorption cooling process in which an absorbent-refrigerant solution from an absorber is heated in a generator producing an absorbent-refrigerant vapor, said absorbent-refrigerant vapor is separated and condensed producing a substantially pure liquid refrigerant and an absorbent-enriched solution, said absorbent-enriched solution is circulated through a heat exchanger in heat exchange relationship with said absorbent-refrigerant solution from said absorber producing a reduced temperature absorbent-enriched solution, said reduced temperature absorbent-enriched solution is returned to said absorber, said substantially pure liquid refrigerant is evaporated producing a substantially pure refrigerant vapor, and said substantially pure refrigerant vapor is absorbed into said reduced temperature absorbent-enriched solution producing said absorbent-refrigerant solution, the improvement comprising:
A process for controlling an absorbent-refrigerant solution concentration in an absorption cooling system comprising:
In an absorption cooling process in which an absorbent-refrigerant solution from an absorber is heated in a generator producing an absorbent-refrigerant vapor, said absorbent-refrigerant vapor is separated and condensed producing a substantially pure liquid refrigerant and an absorbent-enriched solution, said absorbent enriched solution is circulated through a heat exchanger in heat exchange relationship with said absorbent-refrigerant solution from said absorber producing a reduced temperature absorbent-enriched solution, said reduced temperature absorbent-enriched solution is returned to said absorber, said substantially pure liquid refrigerant is evaporated producing a substantially pure refrigerant vapor, and said substantially pure refrigerant vapor is absorbed into said reduced temperature absorbent-enriched solution producing said absorbent-refrigerant solution, the improvement comprising:
Dependencies are inferred from the claim text.