An experimental investigation of single and multiple pass high temperature, high pressure paper drying /
'C (200, 300, and 400 'F)), contact pressures (0.7, 1.4, and
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | 'C (200, 300, and 400 'F)), contact pressures (0.7, 1.4, and 2.1 MPa (100, 200, 300 psi)), and contact times (30, 40, and 60 msec). The handsheets were dried with both single and 60%,depending upon the particular drying conditions and also developed. Further study of high temperature, high An apparatus was designed and constructed for the testing of basis weight of 100 g/m (20.5 lb/1000 ft ) were dried at conventional drying which employs heated, rotating cylinders correlations for single pass and multiple pass drying were determined from the experimental data and used to compare the different combinations of drying temperatures (93, 149, 204 drying temperature most dramatically increase the amount of further quantify the effects of variations related to handsheets were prepared from unbleached pulp with a dry higher pressure drying. The present experimental improve energy efficiency is the use of higher temperature, investigation considers the effects of high temperature, high less than proportionally to the change in contact time. moisture removal for different drying conditions. The moisture removed also increased, but in decreasing moisture removed, while increases in contact pressure do not multiple passes (up to six passes through the test facility). multiple passes. Additionally, other factors such as paper number of passes. The results indicate that increases in passes increased the amount of moisture removed. Accurate percent of moisture removed increases with contact time, but percent of moisture removed ranged from 6% to almost percentages and did not approach a maximum limit with up to pressure drying with multiple passes should be pursued to pressure increase. As the number of passes increased, the pressure single and multiple pass drying on moisture removal. properties, pulp type, felt type, and basis weight should be significantly increase the amount of moisture removed. The six passes. Alternating the drying side during multiple studied. Surface roughness decreases as drying temperature and contact The percent of the original moisture content removed was The primary drying process used in the paper industry is to evaporate moisture from the paper. One process which may wet paper specimens under different drying conditions. All |
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| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | xii, 103 leaves : illustrations ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |