Numerical Modeling and Simulation of Highly Preheated and Diluted Air Combustion Furnaces
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 22، شماره: 8
سال انتشار: 1388
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 76
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شناسه ملی سند علمی:
JR_IJE-22-8_001
تاریخ نمایه سازی: 18 بهمن 1400
چکیده مقاله:
This paper presents some of the results of the modeling and simulation of an industrial furnace under the conventional combustion as well as under the highly preheated and diluted air combustion (HPDAC) conditions. The results are obtained using a computer program written by authors in FORTRAN language. It was found that, the HPDAC offers a more uniform and relatively moderate gas temperature profile resulting in the reduction of NOx pollutant formation and also a larger flame indicating lower maximum local heat release rate. Higher thermal performance (up to ۳۹%) and therefore lower fuel or energy consumption up to (۳۰%) which result in reduction of CO۲ pollutant emission to the environment, in addition to requiring a smaller chamber size for processing the same material/feed or increasing productivity for the same furnace size are also concluded. Finally, in this paper a modified concept and formula has been proposed and used to define the chemical flame shape and size.
کلیدواژه ها:
Furnace Modeling ، Simulation ، Combustion ، Highly Preheated and Diluted Air ، NOX Formation ، Energy Saving
نویسندگان
M. Rahimi
Chemical & Petroleum Engineering, Razi university
A.A. Hamidi
Chemical & Petroleum Engineering, University of Tehran
K. abbasi khazaei
Graduate School of the Environment & Energy, Science and Research Campus, Islamic Azad Universi