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In the present paper an investigation on the regeneration of solid desiccant (silica gel) in a modified design of dehumidifier called "Multi-shelf Dehumidifier", has been reported. A "Packed Bed Dehumidifier" was used as control. Both the dehumidifiers were fabricated and tested simultaneously. The effect of regeneration air temperature, bed-air velocity and number of shelves on regeneration of silica gel was investigated. The range of regeneration air temperature was 42-72°C, while bedair velocity varied from 0.175~).55 m/s and number of shelves from 2 to 4. The regeneration time decreased with the increase in regeneration air temperature, bedair velocity as well as number of shelves. The values of regeneration air temperature and bed-air velocity for minimum energy input were found to be 52°C and 0.175 m/s irrespective of the number of shelves. The effect of the rest period was investigated for these optimum values of regeneration air temperature and air velocity for a number of shelves varying from 2 to 4. The rest periods used were 30, 60 and 180 rains. The regeneration time reduced with increase in rest period for all the values of number of shelves, but the reduction in regen

Who reads Regeneration of Silica Gel in Multi-shelf Regenerator?

Author

Sukhmeet Singh; Parm Pal Singh

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0960-1481)

Published

1998

Language

EN

Field

Engineering (Physical Sciences)