Higher Lift Lower Cost Absorption Cycles. Phase 1 Final Report

摘要

The purpose of the research was to determine if modified NaOH solutions could be used in absorption heat pumps (AHP) to provide higher heat pumping lifts from low ambient temperatures than are now possible. The research consisted of performing screening experiments on a great number of modified alkali hydroxide solutions, in order to characterize and bound the properties of boiling point elevation, solubility limit, and corrosivity as a function of composition. Two preferred compositions were selected for more detailed characterization: the binary NaOH-KOH and the ternary NaOH-KOH-CsOH. Lifts as high as from 0 to 90C have been shown to be possible, which will extend AHP applicability into several important new applications.