초록 ▼

A simple heat cascading regenerative sorption heat pump process with rejected or waste heat from a higher temperature chemisorption circuit (“HTCC”) powering a lower temperature physisorption circuit (“LTPC”) which provides a 30% total improvement over simple regenerative physisorption compression h

A simple heat cascading regenerative sorption heat pump process with rejected or waste heat from a higher temperature chemisorption circuit (“HTCC”) powering a lower temperature physisorption circuit (“LTPC”) which provides a 30% total improvement over simple regenerative physisorption compression heat pumps when ammonia is both the chemisorbate and physisorbate, and a total improvement of 50% or more for LTPC having two pressure stages. The HTCC contains ammonia and a chemisorbent therefor contained in a plurality of canisters, a condenser-evaporator-radiator system, and a heater, operatively connected together. The LTPC contains ammonia and a physisorbent therefor contained in a plurality of compressors, a condenser-evaporator-radiator system, operatively connected together. A closed heat transfer circuit (“CHTC”) is provided which contains a flowing heat transfer liquid (“FHTL”) in thermal communication with each canister and each compressor for cascading heat from the HTCC to the LTPC. Heat is regenerated within the LTPC by transferring heat from one compressor to another. In one embodiment the regeneration is performed by another CHTC containing another FHTL in thermal communication with each compressor. In another embodiment the HTCC powers a lower temperature ammonia water absorption circuit (“LTAWAC”) which contains a generator-absorber system containing the absorbent, and a condenser-evaporator-radiator system, operatively connected together. The absorbent is water or an absorbent aqueous solution. A CHTC is provided which contains a FHTL in thermal communication with the generator for cascading heat from the HTCC to the LTAWAC. Heat is regenerated within the LTAWAC by transferring heat from the generator to the absorber. The chemical composition of the chemisorbent is different than the chemical composition of the physisorbent, and the absorbent. The chemical composition of the FHTL is different than the chemisorbent, the physisorbent, the absorbent, and ammonia.

대표청구항 ▼

A heat cascading regenerative sorption heat pump process with rejected heat from a higher temperature chemisorption circuit powering a lower temperature physical adsorption circuit, the process comprising: (a) providing a higher temperature ammonia chemisorption circuit containing ammonia and a chem

A heat cascading regenerative sorption heat pump process with rejected heat from a higher temperature chemisorption circuit powering a lower temperature physical adsorption circuit, the process comprising: (a) providing a higher temperature ammonia chemisorption circuit containing ammonia and a chemisorbent, the chemisorbent having a first chemical composition operable for chemisorbing and desorbing ammonia, the higher temperature ammonia chemisorption circuit comprising a plurality of canisters each containing the chemisorbent, first condensing means, first evaporating means for cooling a low temperature heat load, first heating means for heating the chemisorbent to a first upper temperature for desorption of ammonia, and first cooling means for cooling the chemisorbent, operatively connected together, and wherein each canister has a heat transfer element in thermal communication with, but not in fluid communication with the chemisorbent; (b) providing a lower temperature ammonia physical adsorption circuit containing ammonia and a physical adsorbent, the physical adsorbent having a second chemical composition operable for physically adsorbing and desorbing ammonia, the second chemical composition being different than the first chemical composition, the lower temperature ammonia physical adsorption circuit comprising adsorption/desorption means containing the physical adsorbent, the adsorption/desorption means having a first part for desorbing ammonia and a second part for physically adsorbing ammonia, second condensing means, second evaporating means for cooling a low temperature heat load, second heating means for heating the first part of the adsorption/desorption means and the physical adsorbent therein to a second upper temperature for desorption of ammonia, and second cooling means for rejecting heat therefrom, operatively connected together; providing at least one first closed heat transfer circuit containing a first heat transfer liquid, the first heat transfer liquid being different than the chemisorbent, the physical adsorbent and ammonia, the first closed heat transfer circuit comprising the heat transfer element of at least one canister, and heat exchange means in thermal communication with the first part of the adsorption/desorption means but not in fluid communication with the physical adsorbent; and (d) wherein cooling the chemisorbent by the first cooling means is by flowing the first heat transfer liquid through the heat transfer element of the at least one canister, thereby cooling it, wherein heating the first part of the adsorption/desorption means and the physical adsorbent therein by the second heating means to a second upper temperature for desorption of ammonia is by flowing the first heat transfer liquid from the at least one canister through the heat exchange means thereby heating the first part, and thereby cascading heat from the higher temperature ammonia chemisorption circuit to the lower temperature ammonia physical adsorption circuit; and (e) regenerating heat within the adsorption/desorption means by transferring heat from the first part thereof to the second part thereof.