Konduktivitas panas berbagai jenis kayu dan koefisien perpindahan panaskayu dan udara dalam kolom fluidisasi
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Pusat Manajemen Pelayanan Kesehatan, Fak. Kedokteran UGM
, 2001
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/21146/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=4004 |
Daftar Isi:
- Thermal conductivities (k) of various woods and solid � gas heat transfer coefficient (h) in fluidized bed were measured in this study, using low temperature air. The air with constant humidity and temperature (around 500C) was flown through the bed of spherical wood (dp = 1 cm) until fluidization takes place. The effluent temperature were measured regularly until constant. Thermal conductivity and solid � gas heat transfer coefficient were estimated from the temperature data obtainde using the Hooke-Jeeves optimization method. Experiments were conducted at various air velocities. The conductivitiy of teakwood (jaa) is = 0.468 J/(K.m.�), of mahagony (mahoni) is = 0.413 J/(K.m.�), of sonokeling is = 0.389 J/(K.m.�), of mranti is = 0.486 J/(K.m.�), and of kamper is = 0.458 J/(K.m.�). For 9178 < Re < 13193, the range of solid � gas heat transfer coefficient (h) is 359 � 475 J/(Km2.�), and its correlation is given by .� lid,, k I f 9.3 p f J id v 0.343 with the average error of 2.14%.