An experimental study of heat transfer through liquid foam
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Mechanical Engineering and Applied Mechanics
- Univ. of Windsor, Ontario (Canada). Dept. of Mechanical Engineering
An experimental investigation was carried out to determine the feasibility of using liquid foam as an insulation medium between the walls of a greenhouse in a hot, and climate, where it must act both as an insulator and as a translucent medium to attenuate thermal radiation. The results show that the foam is effective in attenuating radiation. A 25-mm layer was found to transmit only 50% of incident solar radiation. In addition, it was found that the ``effective`` thermal conductivity is independent of the solute concentration, decreases with an increase in the temperature difference, and increases rapidly with an increase in the mean temperature. The results revealed that a vertical annular liquid foam layer measuring 25 mm thick has an ``effective`` thermal conductivity almost double that of air for a mean temperature of 25 C and a temperature difference of 10 C.
- OSTI ID:
- 87387
- Report Number(s):
- CONF-950104-; TRN: IM9535%%18
- Resource Relation:
- Conference: American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) winter meeting and exhibition, Chicago, IL (United States), 28 Jan - 1 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of ASHRAE transactions 1995. Volume 101, Part 1; PB: 1517 p.
- Country of Publication:
- United States
- Language:
- English
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