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Absorption cycle refrigeration processes and systems are provided which are driven by the sensible waste heat available from industrial processes and other sources. Systems are disclosed which provide a chilled water output which can be used for comfort conditioning or the like which utilize heat fr

Absorption cycle refrigeration processes and systems are provided which are driven by the sensible waste heat available from industrial processes and other sources. Systems are disclosed which provide a chilled water output which can be used for comfort conditioning or the like which utilize heat from sensible waste heat sources at temperatures of less than 170°F. Countercurrent flow equipment is also provided to increase the efficiency of the systems and increase the utilization of available heat.

대표청구항 ▼

A process for producing refrigeration from a sensible waste heat source using a compound absorption refrigeration cycle with a refrigerant and an absorbent compatible with said refrigerant, said absorbent having a negligible volatility at the temperatures encountered during operation, comprising the

A process for producing refrigeration from a sensible waste heat source using a compound absorption refrigeration cycle with a refrigerant and an absorbent compatible with said refrigerant, said absorbent having a negligible volatility at the temperatures encountered during operation, comprising the steps of: (a) supplying heat from said waste heat source and utilizing a portion of it to desorb as relatively high pressure vapor at least a portion of said refrigerant from a first working solution of said absorbent and said refrigerant, (b) condensing at least a portion of the refrigerant vapor from step (a) at said relatively high pressure, (c) passing the resultant liquid refrigerant to an area of relatively lower pressure where at least a portion of it is expanded and evaporated, drawing heat from an external space and producing a refrigerating effect, (d) contacting the refrigerant vapor formed in step (c) with a second working solution of said absorbent and refrigerant to absorb at least a portion of said refrigerant vapor into solution, (e) passing the resultant solution to an area of intermediate pressure and supplying another portion of heat from said waste heat source from step (a) to desorb as vapor at least a portion of the refrigerant from step (d), and returning said second working solution to step (d), (f) contacting the refrigerant vapor from step (e) with said first working solution of said absorbent and refrigerant from step (a) to absorb at least a portion of said refrigerant vapor into solution, and (g) returning the resultant solution to step (a).