On Prediction of the Drying Rate in Superheated Steam Drying Process

被引：30

作者：

Pakowski, Z. ^{[1
]}

Adamski, R. ^{[1
]}

机构：

[1] Tech Univ Lodz, Fac Proc & Environm Engn, PL-90924 Lodz, Poland

来源：

DRYING TECHNOLOGY | 2011年 / 29卷 / 13期

关键词：

Drying falling rate period; Gypsum; Surface temperature; TEMPERATURE;

D O I：

10.1080/07373937.2011.576320

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The aim of the study was to determine how the drying rate in the falling drying rate period can be predicted in superheated steam drying. The study presents drying kinetics (determined experimentally) in the range of steam temperatures from 120 degrees C to 200 degrees C, with the superheated steam velocity from 0.18 to 0.40m/s and under atmospheric pressure of a gypsum plate. In the study the drying rate based on the convective heat-transfer coefficient and steam-solid temperature difference was determined. It was proven that in order to predict drying rate in the falling rate period the surface temperature must be known.

引用

页码：1492 / 1498

页数：7

共 13 条

[1]

AKERMAN K, 1964, GIPS 1 ANHYDRYT GYPS

[2]

Beeby C., 1985, 4 INT DRYING S KYOT

[3]

DERDOUR I, 1998, DRYING TECHNOLOGY, V3, P813

[4] Modelling steam drying of a single porous ceramic sphere: Experiments and simulations [J].

Hager, J ;

Hermansson, M ;

Wimmerstedt, R .

CHEMICAL ENGINEERING SCIENCE, 1997, 52 (08) :1253-1264

[5] Simulation of superheated steam drying considering initial steam condensation [J].

Iyota, H ;

Nishimura, N ;

Yoshida, M ;

Nomura, T .

DRYING TECHNOLOGY, 2001, 19 (07) :1425-1440

[6] Influences of drying medium and temperature on drying kinetics and quality attributes of durian chip [J].

Jamradloedluk, Jindaporn ;

Nathakaranakule, Adisak ;

Soponronnarit, Somchart ;

Prachayawarakorn, Somkiat .

JOURNAL OF FOOD ENGINEERING, 2007, 78 (01) :198-205

[7]

JAROSINSKI A, 2007, CZASOPISMO TECHNICZN, P19

[8] High temperature convective drying of wood chips with air and superheated steam [J].

Johansson, A ;

Fyhr, C ;

Rasmuson, A .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1997, 40 (12) :2843-2858

[9]

KHALIL AA, 1971, J APPL CHEM BIOTECHN, V21, P314

[10]

Sghaier J., 2009, INT REV MECH ENG, V3, P64

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