Patent ID: 7441589

Claim:
An absorption, heat-transfer system comprising: a) a first absorption heat-transfer system comprising a first generator, an absorber, a condenser, and an evaporator operatively connected together; b) a first flow control device located between said generator and said absorber and controlling the flow of a weak solution from said generator to said absorber; c) a second flow control device located between said condenser and said evaporator and controlling the flow of a refrigerant from said condenser to said evaporator; d) a waste-heat source; e) a waste heat steam; f) a high-temperature heat exchanger; g) a solution pair in said first generator; h) a first heat exchange unit in said first generator; i) a first heating load; j) an operationally connected high-temperature heat-exchange loop comprising: 1) a first pump; 2) a second heat exchange unit in said high-temperature heat exchanger; 3) a high-temperature heat-transfer fluid; 4) said first heat exchange unit in said first generator; and 5) a third heat-exchange unit operationally connected to said high-temperature heat-exchange loop; k) said waste heat source passing said waste heat stream to said high-temperature heat exchanger for heating said solution pair in said first generator to a temperature of at least about 250° F. (121°C.) via said first heat exchange unit in said generator, said first heat exchange unit operationally connected to said high-temperature heat-exchange loop with said second heat exchange unit in said high-temperature heat-exchange loop and in said high-temperature heat exchanger heating said high-temperature heat-transfer fluid with said waste heat stream from said waste-heat source; l) an intermediate-temperature heat exchanger; m) a second load; n) an operationally connected intermediate-temperature heat-exchange loop comprising: (1) a second pump; (2) a fourth heat exchange unit in said intermediate temperature heat exchanger; (3)a fifth heat-exchange unit for heating said second load via said waste heat stream emerging from said high-temperature exchanger; and (4) an intermediate heat-transfer fluid; o) said waste heat source passing said waste heat stream to said high-temperature heat exchanger for heating at least one of the following: (1) said first heating load via said third heat-exchange unit operationally connected to said high-temperature heat-exchange loop; and (2) said intermediate-temperature heat-exchange loop comprising said said fifth heat-exchange unit for heating said second load via said waste heat stream emerging from said high-temperature heat exchanger.