Hydration-dehydration kinetics of inorganic salts with potential heat pump applicaions

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6644416

Stanish, M A

The primary thrust of this research was directed toward investigation of the dehydration and rehydration behavior of inorganic salts and was motivated by the potential of salt hydrates for application in chemical heat pump cycles. A basic thermodynamic application in chemical heat pumps showed that under the conditions encountered in a domestic solar-powered application, cycles employing solid inorganic salts or salt hydrates as absorbents are thermodynamically more efficient in both the heating and cooling modes of operation than are cycles using previously-proposed liquid or solid absorbents such as aqueous LiBr or SrCl/sub 2/.2NH/sub 3/. Since the dehydration and rehydration reactions involved in heat pump operation are not well understood, experimental investigations were needed to determine whether the actual kinetics of these reactions match the thermodynamic advantages. The objectives of this research were two-fold: (1) to obtain practical rate data in order to evaluate the feasibility of hydrate-based heat pumps and (2) to formulate mechanistic interpretations of the dehydration and rehydration process.

• OSTI ID: 6644416
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
141000* -- Solar Collectors & Concentrators
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100 -- Energy Conservation
Consumption
& Utilization-- Buildings
CHEMICAL HEAT PUMPS
DEHYDRATION
EQUIPMENT
EVALUATION
FEASIBILITY STUDIES
HEAT PUMPS
HYDRATION
INORGANIC COMPOUNDS
KINETICS
PHYSICAL PROPERTIES
SALTS
SOLAR ABSORBERS
SOLAR EQUIPMENT
SOLVATION
THERMODYNAMIC PROPERTIES