TEMPERATURE AND RELATIVE HUMIDITY GAINS OF “TEKO BERSAYAP” MODEL SOLAR DRYER (A RESEARCH NOTE)
| Main Authors: | Yuwana, Yuwana, Bosman, Sidebang, Evanila, Silvia |
|---|---|
| Format: | BookSection PeerReviewed Book |
| Bahasa: | eng |
| Terbitan: |
Fakultas Pertanian UNSRI
, 2011
|
| Subjects: | |
| Online Access: |
http://repository.unib.ac.id/1097/1/TEMPERATURE%20AND%20RELATIVE%20HUMIDITY%20GAINS%20OF.pdf http://repository.unib.ac.id/1097/ |
Daftar Isi:
- In order to solve the problems a rise from sun drying practices for agricultural products, a solar dryer was con structed having profile a ja r in its lon g se ct ion and two wings appeared in its cro ss section. Whole structure was covered with UV plastic to harve st en e rg y fro m th e sun a nd th e bo d y o f th e ja r wa s d ry in g cha mb e r, tu nn e l o f th e ja r a ct s a s ch i mn e y eq u ip p ed with e xh au st fa n in sid e wh ile th e in clin ed wing s fu n c tio n a s ad d ed he a t co lle c to r. The dryer was equipped with two in lets situated at the bottom end soft he wings. Du ring o p e ra tio n fresh a ir e n t ere d in to th e in le ts a nd wa s h ea ted in sid e th e d ry ing c ha mb e r an d wa s the n ex h au st ed th ro ug h th e ch imn ey . P erfo rma n c e of th e d ry e r wa s e xp erim e n t ed fo r th ree ti me s in th re e d iffe re n t d a y s fro m 0 8 . 00 to 1 7 . 00 o ’ c lo c k . Th e re su l t o f th e ex p e rim e n t in d i ca ted th a t fo r th e a ve ra g es a mbie n t temp era tu re an d re la tiv e h u m id ity ra ng in g fro m 29 to 38 .7 o C a nd 41 .7 to 6 8 % re spe c tiv ely , t h e a v e rag es d ryi ng ch a mb er te mp e ra tu re an d re la ti ve h u m id ity were 3 2 .4 to 51 o C an d 1 8 . 6 to 53 .8 % re sp e ct ive ly . T h e a v e rag e te m p e ra tu re ga in wh ic h wa s th e d iffe ren ce s b e twe e n d ryin g ch a mb e r te m p e ra tu re an d a mb ien t t em p era tu re , a nd th e a v e rag e re la t ive h u m id ity ga in wh ich wa s d if fe re n c e b e twee n d ry ing ch a m b er re la t ive h u m id ity an d a m bie n t rel ativ e h u m id i ty were 1 0 o C an d 2 1. 4 % re sp e ct ive ly .