| 摘要 |
A combined heating/cooling system and method is provided wherein an absorption tank ( 20 ) houses a refrigerant and absorbant mixture composition. A boiler ( 50 ) heats the pressurized mixture composition and vaporizes the refrigerant. Heated absorbant is passed back through a heat exchanger ( 40 ) to be delivered back into absorption tank ( 20 ) and the vaporized refrigerant is directed to a closed-loop thermal exchange system for selectively heating and cooling ambient air. The mixture may be a composition of NMP as the absorbant and HFC-245fa as the refrigerant. When such a composition is employed, pressure may be reduced such that less expensive construction materials, such as aluminum, may be incorporated into the boiler fluid circuit, such as in the heat exchanger ( 40 ).
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