Investigation into overall heat transfer coefficient in indirectly heated rotary torrefier
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- 作者：Daya Ram Nhuchhena ; dy998952@dal.ca" class="auth_mail" title="E-mail the corresponding author ; dayashyad@hotmail.com" class="auth_mail" title="E-mail the corresponding author ; Prabir Basua ; Bishnu Acharyab
- 关键词：Torrefaction process ; Rotary reactors ; Indirect heating ; Overall heat transfer coefficient ; Mechanistic model
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：102
- 期：Complete
- 页码：64-76
- 全文大小：1503 K
文摘
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Heat transfer coefficients in rotary torrefier are investigated.
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Modified model for the wall to solid heat transfer coefficient has a better predictive power.
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Overall heat transfer coefficient model (OHTC) is verified experimentally.
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The OHTC values were found in a range of 13.2–20.9 W/m2 K.
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Effects of angular speed, inclination, and reactor diameter are also examined.