Densities and viscosities of ternary ammonia/water fluids
The densities, viscosities, and boiling points (at barometric pressure) of solutions formed by inorganic salts dissolved in an ammonia/water (NH{sub 3}/H{sub 2}O) solvent have been measured. These ternary solutions of ammonia/water/dissolved salt are being investigated to reduce rectification requirements and to expand the temperature range of ammonia/water in advanced absorption cycles. Densities and viscosities of these fluids were measured over the temperature range of 283.15 to 343.15 K (10.0 to 70.0{degrees}C). Observed densities and viscosities were expressed as empirical functions of temperature by means of the least-squares method. The dynamic viscosities of ternary fluids were found to be three to seven times greater than those of the binary system of NH{sub 3}/H{sub 2}O, which implies that a substantial decrease in the film heat and mass transfer coefficient is possible. However, because this quantitative linkage is not well understood, direct measurements of heat and mass transfer rates in a minisorber are recommended and planned.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10165899
- Report Number(s):
- CONF-931121--9; ON: DE93015966
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201
AMMONIA
AQUEOUS SOLUTIONS
BOILING POINTS
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
DENSITY
LITHIUM BROMIDES
LITHIUM CHLORIDES
LITHIUM HYDROXIDES
LITHIUM NITRATES
PHYSICAL PROPERTIES
POTASSIUM HYDROXIDES
TEMPERATURE RANGE 0273-0400 K
VISCOSITY