Study of heat transport of an osmotic heat pipe: Part 1. effects of the initial concentration on heat transport limits

✍ Scribed by Shigetoshi Ippohshi; Hideaki Imura

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 226 KB
• Volume: 29
• Category: Article
• ISSN: 1099-2871
• DOI: 10.1002/(sici)1523-1496(200001)29:1<59::aid-htj6>3.0.co;2-z

✦ Synopsis

This paper presents an experimental study on the effects of initial concentration on the critical heat transport rate of an osmotic heat pipe operated under atmospheric pressure. In this experiment, an aqueous polyethylene glycol 600 solution was used as the working fluid and 18 tubular acetyl cellulose membranes were used as the osmotic membranes. The initial concentration was varied between 0.1 to 1.0 kmol/m 3 in 0.1 kmol/m 3 steps. Consequently, the existence of an optimum initial concentration for the critical heat transport rate was revealed. In addition, solution concentrations in the solution riser and downcomer were found to be related to the initial concentration and solvent contact height.