Heat transfer in packed bed heat recuperators-II. The film coefficient for dry sorbent solids

✍ Scribed by Stanley H. Jury; Mario C. Berbano

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 789 KB
• Volume: 303
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(77)90115-6

✦ Synopsis

An elaborate experimental set up is described that was used to measure the thermal expiration curves of heat recuperators, that had been constructed with guard heaters and vacuum insulahon to minimize heat losses. A much more general model is used along with a precision numerical analysis technique to show that a film coefficient correlation of the D&us-Boelter type did an excellent job of representing the results from

162 runs in which three feed gas temperatures, two pow rates, two particle size ranges, one bed diameter and fiue desciccants were used.

For comparison sake the reported film coefficient correlation is finally assembled in a table along with others found in the literature.