Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah

Drying processes for heat reluctictant, such as pharmaceutical products(vitamin C), needed special handling for example a low temperature drying in order to minimize damage. The principle of drying processes dealt with heat and mass transfer simultaneously so mathematic models can be developed based...

Full description

Saved in:

Bibliographic Details
Main Author:	Perpustakaan UGM, i-lib
Format:	Article NonPeerReviewed
Published:	[Yogyakarta] : Universitas Gadjah Mada 1998
Subjects:	Jurnal i-lib UGM
Online Access:	https://repository.ugm.ac.id/26707/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=9746
Tags:	Add Tag No Tags, Be the first to tag this record!
Institution:	Universitas Gadjah Mada

id	id-ugm-repo.26707
record_format	dspace
spelling	id-ugm-repo.267072014-06-18T00:37:06Z https://repository.ugm.ac.id/26707/ Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah Perpustakaan UGM, i-lib Jurnal i-lib UGM Drying processes for heat reluctictant, such as pharmaceutical products(vitamin C), needed special handling for example a low temperature drying in order to minimize damage. The principle of drying processes dealt with heat and mass transfer simultaneously so mathematic models can be developed based on the heat and mass balances.These models were solved by numerical method while Kya and de constants can be evaluated with Hooke-Jeeves optimization method. The Experiment of drying processes at the Vitamin C was carried out in a drier set with fixed Bed columm at low temperature.The Operation variables were Reynold number, the ratio of bed thickness and columm diameter, humidity of air and the ratio of air temperature and solid temperature.Correlation of mass tranfer coefisient(Kya) and the axial effective diffusivity(DE) with operation variables can be expressed in sherwood's which is represented by the following emperical equation: sh=4.627.10.Re 0.09069(Z/Dt)0,1242Y0,1614(tg/Ts)0,5454 with an average error of 1.5% Axial effective diffusivity can be represented by the following emperical equation:De/Dab=8,056.10-3Re0,02005(Z/Dt)0,1046Y0,2323.(Tg/Ts)0,2264 with an average error of 1,6% These equation are valid for 15,9 [Yogyakarta] : Universitas Gadjah Mada 1998 Article NonPeerReviewed Perpustakaan UGM, i-lib (1998) Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah. Jurnal i-lib UGM. http://i-lib.ugm.ac.id/jurnal/download.php?dataId=9746
institution	Universitas Gadjah Mada
building	UGM Library
country	Indonesia
collection	Repository Civitas UGM
topic	Jurnal i-lib UGM
spellingShingle	Jurnal i-lib UGM Perpustakaan UGM, i-lib Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah
description	Drying processes for heat reluctictant, such as pharmaceutical products(vitamin C), needed special handling for example a low temperature drying in order to minimize damage. The principle of drying processes dealt with heat and mass transfer simultaneously so mathematic models can be developed based on the heat and mass balances.These models were solved by numerical method while Kya and de constants can be evaluated with Hooke-Jeeves optimization method. The Experiment of drying processes at the Vitamin C was carried out in a drier set with fixed Bed columm at low temperature.The Operation variables were Reynold number, the ratio of bed thickness and columm diameter, humidity of air and the ratio of air temperature and solid temperature.Correlation of mass tranfer coefisient(Kya) and the axial effective diffusivity(DE) with operation variables can be expressed in sherwood's which is represented by the following emperical equation: sh=4.627.10.Re 0.09069(Z/Dt)0,1242Y0,1614(tg/Ts)0,5454 with an average error of 1.5% Axial effective diffusivity can be represented by the following emperical equation:De/Dab=8,056.10-3Re0,02005(Z/Dt)0,1046Y0,2323.(Tg/Ts)0,2264 with an average error of 1,6% These equation are valid for 15,9
format	Article NonPeerReviewed
author	Perpustakaan UGM, i-lib
author_facet	Perpustakaan UGM, i-lib
author_sort	Perpustakaan UGM, i-lib
title	Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah
title_short	Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah
title_full	Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah
title_fullStr	Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah
title_full_unstemmed	Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah
title_sort	koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah
publisher	[Yogyakarta] : Universitas Gadjah Mada
publishDate	1998
url	https://repository.ugm.ac.id/26707/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=9746
_version_	1681218823663910912

Koefisien perpindahan massa dan difusivitas efektif pada proses pengeringan dalam kolom fixed bed pada suhu rendah

Similar Items