Determination of thermal properties of dilute LiBr-water solutions
Journal Article
·
· International Journal of Thermophysics
- Hitachi Ltd., Tsuchiura, Ibaraki (Japan)
The authors are developing an absorption air cooling system which can supply 2 C chilled water for air cooling by the usage of dilute solutions of LiBr in water with an evaporating temperature of {minus}6 C as a nonfreezing refrigerant. However, there are few published data for the thermal properties of dilute LiBr-water solutions (0 to 30%) below 10 C. In this paper, the freezing temperature and the saturated vapor pressure are reported. The results clearly show the possibility of developing a new type of LiBr absorption refrigerating machine to generate evaporating temperatures below 0 C. To obtain accurate data for the design of this new type of absorption refrigerating machine, an apparatus has been developed to measure the thermal properties of dilute LiBr-water solutions below 10 C. The experimental arrangement consists of a coding bath (340 x 240 x 190 mm) filled with fluorocarbon, a glass measuring bottle ({phi}120 {times} 100 mm), and an absolute pressure gauge (0--1.3 kPa). The accuracy of the temperature, pressure, and density are within {+-}0.1 C, 0.01 kPa, and {+-}0.005%, respectively.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 675533
- Report Number(s):
- CONF-9509483--
- Journal Information:
- International Journal of Thermophysics, Journal Name: International Journal of Thermophysics Journal Issue: 2 Vol. 18; ISSN 0195-928X; ISSN IJTHDY
- Country of Publication:
- United States
- Language:
- English
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