Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Heat Transfer Research
Facteur d'impact: 0.404 Facteur d'impact sur 5 ans: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561

Volumes:
Volume 50, 2019 Volume 49, 2018 Volume 48, 2017 Volume 47, 2016 Volume 46, 2015 Volume 45, 2014 Volume 44, 2013 Volume 43, 2012 Volume 42, 2011 Volume 41, 2010 Volume 40, 2009 Volume 39, 2008 Volume 38, 2007 Volume 37, 2006 Volume 36, 2005 Volume 35, 2004 Volume 34, 2003 Volume 33, 2002 Volume 32, 2001 Volume 31, 2000 Volume 30, 1999 Volume 29, 1998 Volume 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2016011341
pages 263-281

SEEPAGE HEAT TRANSFER BETWEEN CLINKER AND COOLING AIR WITH VARIABLE PROPERTIES OF THE GRATE COOLER

Meiqi Wang
School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
Bin Liu
School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China
Yan Wen
School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Haoran Liu
School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China

RÉSUMÉ

Heat transfer between a clinker layer and cooling air was studied by using the mechanics of the flow in porous media. Considering local thermal nonequilibrium and thermal dispersion effect, a seepage heat transfer model for compressible fluid flowing through a porous clinker layer was constructed with variable properties of a grate cooler. A solution algorithm for thermally coupled seepage was proposed. The effects of main working parameters, wind pressure, and grate speed on the clinker cooling process were shown. The simulation results showed that there was a large deviation between the variable properties model and constant properties model. The variable properties model can make a more accurate description for the temperature distribution of the clinker layer. With increase in wind pressure, the air temperature and clinker temperature drop while the seepage velocity increases. When raising the grate speed at an invariant feed rate, the seepage velocity increases, the air temperature inside the clinker layer and the clinker temperature at the top of the front clinker layer drop, while the clinker temperature in other regions increases. When raising the grate speed at a certain thickness of the clinker layer, the low velocity area increases while the air temperature and clinker temperature in the clinker layer increase.


Articles with similar content:

RESIDUAL STRESSES AND MICROSTRUCTURE OF PLASMA SPRAYED ZIRCONIA COATINGS
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.2, 1998, issue 3
A. Haddadi, F. Nardou, R. Hamacha, Alain Grimaud, Pierre Fauchais
NUMERICAL STUDY OF THE EFFECT OF OVER/UNDERBURDEN PERMEABILITY ON METHANE HYDRATE DISSOCIATION BY DEPRESSURIZATION
International Heat Transfer Conference 16, Vol.18, 2018, issue
Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama, Lin Chen, Yongchang Feng, Hikaru Yamada
A PORE TRAPPED IN SOLID DURING SOLIDIFICATION
ICHMT DIGITAL LIBRARY ONLINE, Vol.1, 2000, issue
Y. K. Kuo, S. H. Chiu, P. S. Wei
Abstract of "A PORE TRAPPED IN SOLID DURING SOLIDIFICATION"
ICHMT DIGITAL LIBRARY ONLINE, Vol.1, 2000, issue
Y. K. Kuo, S. H. Chiu, P. S. Wei
NUMERICAL SIMULATION OF LAMINAR FILM CONDENSATION OF VAPOR IN A HORIZONTAL MINICHANNEL WITH AND WITHOUT A NONCONDENSABLE GAS
Heat Transfer Research, Vol.47, 2016, issue 2
Qiu-Wang Wang, Zhan Yin, Min Zeng, Jianjun Wen