Vapor-liquid equilibria in the system NH{sub 3} + H{sub 2}O + LiBr. 2: Data correlation
- Univ. of Siegen (Germany). Institute Fluid- and Thermodynamics
The systems ammonia + water (NH{sub 3} + H{sub 2}O) and water + lithium bromide (H{sub 2}O + LiBr) provide two working pairs most often used today in air-conditioning systems and systems for reusing industrial waste heat, such as absorption heat pumps and heat transformers. A quasi-chemical reaction model has been developed to correlate vapor-liquid equilibrium data for the system ammonia (NH{sub 3}) + water (H{sub 2}O) + lithium bromide (LiBr) in the temperature range form 303.15 to 473.15 K and at pressures up to 2.0 MPa. this model assumes the formation of ion clusters, i.e., Li{sup +} and Br{sup {minus}} ions surrounded by ammonia and water molecules. Further, ammonia nd water molecules are assumed to form a second species of complexes. The activities of the various components in the liquid phase are modeled by the NRTL equation. The vapor phase, assumed to consist of ammonia and water only, is modeled by the equation of state of Ishikawa, Chung, and Lu.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 103952
- Report Number(s):
- CONF-941128-; ISSN 0021-9568; TRN: IM9541%%392
- Journal Information:
- Journal of Chemical and Engineering Data, Vol. 40, Issue 4; Conference: Annual meeting of the American Institute of Chemical Engineers, San Francisco, CA (United States), 13-18 Nov 1994; Other Information: PBD: Jul-Aug 1995
- Country of Publication:
- United States
- Language:
- English
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