Correlation of the area-mass transfer coefficient inside the drum of a clothes dryer

被引：25

作者：

Bassily, AM

Colver, GM

机构：

[1] Gharian Univ, Gharian, Libya

[2] Iowa State Univ, Dept Mech Engn, Ames, IA USA

来源：

DRYING TECHNOLOGY | 2003年 / 21卷 / 05期

关键词：

clothes drying; correlation; dryer efficiency; drying process; mass transfer efficiency; mass transfer process;

D O I：

10.1081/DRT-120021692

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The mass transfer process inside the drum of a clothes dryer affects its performance. The area-mass transfer coefficient was defined and correlated to the weight of the clothes, drum speed, the Reynolds number, Schmidt number, and Gukhman number using the experimental results of 32 runs on a Fridigaire clothes dryer. The coefficient of correlation was 0.994. A separate correlation for the Sherwood number was evaluated for a single piece of cloth stretched perpendicular to the flow in a pipe. This second correlation was used to compare the mass transfer inside the actual dryer with that of the "idealized" mass transfer process for a single piece of cloth. The results indicated that the average mass transfer efficiency for clothes in the dryer was only 26.4% of the ideal process. Means to enhance the area-mass transfer coefficient and the reasons for the poor performance of an actual dryer are discussed.

引用

页码：919 / 944

页数：26