Heat temp. boosting system - uses absorption heat pump and external heat only in highest pressure expansion stage of solution

摘要

The system increases the temperature level of heat, using an absorption heat pump. A solution rich in working medium is expanded in several successive stages, in each of which part of the absorbed medium is expelled from the solution. In the highest pressure stage the solution is heated by an external source, and in each subsequent one it is heated by the medium expelled from the previous stage. The expelled solution from each stage can be fully condensed by heat exchange in the next one. It can be expanded to the pressure of the condensed medium expelled in the next stage and mixed with it.