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CONVECTION HEAT TRANSEER COEFFICIENTS AT CONVECTIVE DRYING OF POROUS MATERIALS*

 

作者: S. Szentgyörgyi,   L. Tömösy,   O. Molnár,  

 

期刊: Drying Technology  （Taylor Available online 2000）
卷期: Volume 18, issue 6  

页码: 1287-1304

 

ISSN:0737-3937

 

年代: 2000

 

DOI:10.1080/07373930008917777

 

出版商: Taylor & Francis Group

 

关键词: penetrating evaporation front;heat of vaporisation

 

数据来源: Taylor

 

摘要:

Our measurements proved that the convective heat transfer coefficient (h) has a larger valuehwetat the constant drying rate period and after that it falls down to a minimum one:hdryin the equilibrium dried state (see Fig.1). Our measurements showed also that the heat of vaporisation in the last phase of the falling drying rate period is far greater than it was in the constant drying rate period (see Fig.10).

 

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