Solubilities and vapor pressures of the water + lithium bromide + ethanolamine system

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je950249+· OSTI ID:228028

Kim, J S; Park, Y; Lee, H ^[1]

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1. Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of). Dept. of Chemical Engineering

Solubilities of lithium bromide in the water (1) + lithium bromide (2) + ethanolamine (3) system at three different ratios (w{sub 2}/w{sub 3} = 4.5, 4, and 3.5) were measured by using the visual polythermal method in temperature ranges of (281.35 to 333.55) K, (281.65 to 333.55) K, and (275.45 to 345.95) K, respectively. Each set of experimental measurements was correlated with two least-squares regression equations as a function of temperature. The average absolute deviations between the experimental and the calculated solubilities were less than 0.04%. Vapor pressures of the water + lithium bromide + ethanolamine system (LiBr/H{sub 2}N(CH{sub 2}){sub 2}OH mass ratio 3.5/1) were also measured by a boiling point method in the temperature range of (319.75 to 418.35) K and in the absorbent concentration range of (50.0 to 79.3) mass %. The experimental values were well correlated with an Antoine-type equation, and the overall average absolute deviation was found to be 0.85%. These experimental results indicate that the mixture studied can be used as a new working fluid in an absorption chiller.

• OSTI ID: 228028
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 2 Vol. 41; ISSN 0021-9568; ISSN JCEAAX
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ABSORPTION REFRIGERATION CYCLE
AIR CONDITIONERS
AMINES
AQUEOUS SOLUTIONS
LITHIUM BROMIDES
MEASURING METHODS
REFRIGERATING MACHINERY
REGRESSION ANALYSIS
SOLUBILITY
VAPOR PRESSURE
WORKING FLUIDS