초록 ▼

An absorption heat pump achieves improved efficiency by lowering the low cycle temperature of the circulation fluid. This is accomplished by adding a crystallization-inhibiting compound to the circulation fluid which substantially depresses the temperature at which the absorbent salt in the fluid be

An absorption heat pump achieves improved efficiency by lowering the low cycle temperature of the circulation fluid. This is accomplished by adding a crystallization-inhibiting compound to the circulation fluid which substantially depresses the temperature at which the absorbent salt in the fluid begins to crystallize.

대표청구항 ▼

[ We claim:] [1.] In an absorption heat pump, the improvement comprising an aqueous circulation fluid including an absorbent salt and a crystallization-inhibiting additive including 5-amino-2,4,6-trioxo-1,3-perhydrodizine-N,N-diacetic acid (uramil N,N-diacetic acid), the circulation fluid having a h

[ We claim:] [1.] In an absorption heat pump, the improvement comprising an aqueous circulation fluid including an absorbent salt and a crystallization-inhibiting additive including 5-amino-2,4,6-trioxo-1,3-perhydrodizine-N,N-diacetic acid (uramil N,N-diacetic acid), the circulation fluid having a high cycle temperature and a low cycle temperature, wherein the low cycle temperature is not higher than -5.degree. C. at a salt concentration of up to 62% by weight.