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Mechanisms of Drying of Skin-Forming Materials. I. Droplets of Materials Which Gelatinised at High Temperature

 

作者: HaydarM. Hassan,   CliveI Mumford,  

 

期刊: Drying Technology  （Taylor Available online 1993）
卷期: Volume 11, issue 7  

页码: 1713-1750

 

ISSN:0737-3937

 

年代: 1993

 

DOI:10.1080/07373939308916925

 

出版商: Taylor & Francis Group

 

关键词: Effect of drying temperature on the resistance to vapour diffusion;granule gelatinisation;single droplet drying;skin formation

 

数据来源: Taylor

 

摘要:

Heat and mass transfer rates related to single droplets suspended from a nozzle were studied in a 42mm 1D. horizontal wind tunnel designed to supply hot dry air, to simulate conditions in a spray dryer. A novel rotating glass nozzle facilitated direct measurements of droplet weight and core temperature. Revised correlations were obtained for heat and mass transfer coefficients, for evaporation from pure water drop1ets.

 

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