Calculation of temperature and moisture distributions during contact drying of a sheet of moist material

1969 ◽  
Vol 12 (1) ◽  
pp. 45-59 ◽  
Author(s):  
S. Bruin
Keyword(s):  
Moist Material ◽  
Contact Drying

Drying of Sewage Sludge – An Important Step in Waste Disposal

1990 ◽  
Vol 22 (12) ◽  
pp. 57-63 ◽  
Author(s):  
H. Grüter ◽  
M. Matter ◽  
K. H. Oehlmann ◽  
M. D. Hicks
Keyword(s):  
Sewage Sludge ◽  
Short Review ◽  
Water Removal ◽  
Evaporation Process ◽  
Thin Film Evaporation ◽  
Film Evaporation ◽  
Base Materials ◽  
Sludge Disposal ◽  
Drying Techniques ◽  
Contact Drying

Industrial drying techniques are successfully used processes. They are usually used for the production of base materials for industries such as food, chemical and pharmaceutical. These processes can be transferred without any difficulty for the drying of sewage sludge. Thermal drying as a process for the purpose of water removal is an important link in waste management between sludge production and sludge disposal. Two systems, convection and contact drying, are here compared. Contact drying in the thin film evaporation process is explained. Explanation and proposed uses of the single and two-stage drying systems will be discussed. Finally a short review of incurred expenses will be given.

Contact drying of fibrous sheet material

1985 ◽  
Vol 24 (1) ◽  
pp. 188-194 ◽  
Author(s):  
Masao Kobari ◽  
Yukio Shimizu ◽  
Mihoko Endo ◽  
Hikoji Inazumi
Keyword(s):  
Sheet Material ◽  
Contact Drying

A study on contact drying with flexible screen

2000 ◽  
Vol 11 (1) ◽  
pp. 51-53
Author(s):  
Lu Renshu ◽  
Wang Weihong ◽  
Hua Jun
Keyword(s):  
Contact Drying

Heat and Mass Transfer during Contact Drying in a Laundry Calender

1973 ◽  
Vol 187 (1) ◽  
pp. 591-599
Author(s):  
J. F. T. MacLaren ◽  
A. A. Nicol ◽  
R. Wallace
Keyword(s):  
Mass Transfer ◽  
Moisture Content ◽  
Heat And Mass Transfer ◽  
Initial Moisture Content ◽  
Temperature Profiles ◽  
Drying Process ◽  
Steam Temperature ◽  
Empirical Expression ◽  
Contact Drying ◽  
Physical Variables

Contact drying of fabric was studied using a two-roll steam-heated laundry calender. The effects on heat and mass transfer of steam temperature, fabric initial moisture content, fabric velocity, contact pressure and steam-side heat transfer coefficient were observed experimentally. Bed and roller surface temperature profiles were measured to assist in interpreting and subsequently analysing the drying process. The experimental results were correlated using dimensionless parameters derived from a dimensional analysis of a drying equation. An empirical expression was obtained that related the final moisture content of the fabric to the initial moisture content and the other pertinent physical variables.

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