Dynamic force reduction and heat transfer improvement for horizontal tubes in large-particle gas-fluidized beds

Autor:	Yutaka Asako, John R. Grace, Kok-Seng Lim, Yusumi Nagahashi
Rok vydání:	2008
Předmět:	Single tube Materials science Large particle Heat transfer Force dynamics Thermodynamics Tube (fluid conveyance) Heat transfer coefficient Mechanics Condensed Matter Physics Reduction (mathematics) Concentric tube heat exchanger
Zdroj:	Journal of Thermal Science. 17:77-83
ISSN:	1993-033X 1003-2169
DOI:	10.1007/s11630-008-0077-y
Popis:	The effects of tube bank configuration on forces and heat transfer were investigated for both two-dimensional and three-dimensional gas fluidized beds. Effective dynamic forces and heat transfer coefficients were measured for several tube bank configurations, and it was found that the average forces are smaller than for a single tube. The heat transfer coefficient can be increased by providing sufficient space for particles to descend around both sides of the tube bank. The results provide useful guidelines for optimizing the configuration of tube banks to achieve high heat transfer coefficients while reducing tube erosion due to dynamic forces.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fda7945eeeb53482487dd0cc01f8f0dc https://doi.org/10.1007/s11630-008-0077-y Zobrazit plný text záznamu Full text from SpringerLink