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Title: Entropy generation during microcombustion
Authors: Li, Z.W. 
Chou, S.K. 
Shu, C. 
Yang, W.M. 
Issue Date: 27-Apr-2005
Source: Li, Z.W., Chou, S.K., Shu, C., Yang, W.M. (2005-04-27). Entropy generation during microcombustion. Journal of Applied Physics 97 (8) : -. ScholarBank@NUS Repository.
Abstract: We use an entropy balance to formulate the entropy generation equation in a flame zone of a cylindrical microcombustor tube. In deriving this equation, we define a nondimensional radius as the ratio of the tube radius to the flame thickness, and we set up a thermal model of the flame zone by applying an energy balance for a steady flow system to the flame zone. Based on this model, we obtain a relationship between the flame temperature and the nondimensional radius. Given this relationship, the effects of the fuel, fuel-air ratio, unburned gas temperature, and tube radius on entropy generation are analyzed. The occurrence of minimum entropy generation is predicted. The efficient operating conditions of the microcombustor are suggested. © 2005 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.1876573
Appears in Collections:Staff Publications

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