Energy Consumption of a Pilot-Scale Spray Dryer

被引：19

作者：

Al-Mansour, H. E. ^{[2
]}

Al-Busairi, B. H. ^{[1
]}

Baker, C. G. J. ^{[1
]}

机构：

[1] Kuwait Univ, Dept Chem Engn, Safat 13060, Kuwait

[2] Kuwait Inst Sci Res, Dept Biotechnol, Safat 13109, Kuwait

来源：

DRYING TECHNOLOGY | 2011年 / 29卷 / 16期

关键词：

Energy consumption; Experimental; Product moisture content; Spray drying; FLUIDIZED-BED DRYERS; OPERATION;

D O I：

10.1080/07373937.2011.595563

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Factors affecting the energy consumption of a pilot-scale spray dryer have been studied. The feedstock employed was instant coffee solution (50-150 gl(-1)). Its feed rate ranged from 0.83 to 1.9 mls(-1) and the inlet air temperature from 473-533 K. The specific energy consumption E(s) (3,000-5,500 kJkg(-1)) decreased with increasing feed rate and temperature difference across the dryer and increased with solids concentration. Values of E(s) obtained were consistent with Baker and McKenzie's [10] adiabatic dryer model. The thermal loss factor eta decreased with increasing evaporation rate. Attempts to correlate product moisture content with the operating variables met with limited success.

引用

页码：1901 / 1910

页数：10

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