Measuring the Drying Rate of Liquid Film Coatings Using Heat Flux Method

被引：19

作者：

Yamamura, Masato ^{[1
]}

Ohara, Keiji ^{[1
]}

Mawatari, Yoshihide ^{[1
]}

Kage, Hiroyuki ^{[1
]}

机构：

[1] Kyushu Inst Technol, Dept Appl Chem, Fukuoka 8048550, Japan

来源：

DRYING TECHNOLOGY | 2009年 / 27卷 / 06期

关键词：

Drying; Heat flux; Liquid film coating;

D O I：

10.1080/07373930902901687

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We propose a simple method of determining solvent drying rates from heat flux measurements across thin liquid films. The theory is based on quasi-steady conductive heat transport through coatings, combined with simultaneous heat and mass transfer in the gas phase. The measured evaporation rates well reproduce conventional gravimetric measurements with an uncertainty of less than 5%. Drying experiments also revealed that the proposed method is robust in systems with high levels of fluctuation and thus provides an alternative tool for monitoring drying kinetics in forced air flows.

引用

页码：817 / 820

页数：4

共 10 条

[1] Validation of a novel in situ weighing system during vacuum drying [J].