| 摘要 |
1,208,467. Refrigerating; liquid coolants. WORTHINGTON CORP. 26 Nov., 1968, No. 55975/68. Headings F4H and F4U. An aqueous solution for use in an absorption refrigeration system or in a closed engine cooling circuit comprises lithium chloride or bromide and zinc chloride or bromide, the molar ratio of the lithium salt and the zinc salt being between 11: 1 and 1 : 2. The solution may also contain calcium chloride or bromide. The solution is particularly useful in an absorption system since it has a low vapour pressure which in turn allows the absorber to be air cooled rather than water cooled and since it may be highly concentrated without precipitation, thus allowing steam at at least 125 p.s.i.g. to be used to heat the generator. The Specification details the solution characteristics and gives exemplary operating temperatures of an absorption system. |
