HEAT-TRANSFER IN GRANULAR ACTIVATED CARBON BEDS IN THE PRESENCE OF ADSORBABLE GASES
UNSPECIFIED (1995) HEAT-TRANSFER IN GRANULAR ACTIVATED CARBON BEDS IN THE PRESENCE OF ADSORBABLE GASES. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 38 (9). pp. 1577-1585. ISSN 0017-9310Full text not available from this repository.
The thermal conductivity of an active carbon bed in vacuum, helium, neon and argon has been measured at temperatures up to 200 degrees C. A modified version of the Zehner-Bauer model is developed which successfully describes the results. The model is expanded to include the variation in grain conductivity due to the adsorbed phase when the bed is exposed to an adsorbable gas. The expanded model is verified by conductivity measurements with ammonia at up to 11.3 bar pressure and 25% mass concentration. Conductivities are predicted to +3.1%, -2.5%. Bed conductivities with ammonia are typically 0.165 W m(-1) K-1, with minor changes due to concentration, but the grain conductivity varies between 0.85 and 1.25 W m(-1) K-1 as a non-linear function of concentration.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics
T Technology > TJ Mechanical engineering and machinery
|Journal or Publication Title:||INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER|
|Publisher:||PERGAMON-ELSEVIER SCIENCE LTD|
|Number of Pages:||9|
|Page Range:||pp. 1577-1585|
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