Zonal modeling of radiative heat transfer in industrial furnaces using simplified model for exchange area calculation |
| |
Authors: | Hadi Ebrahimi Akbar Zamaniyan Jafar S. Soltan Mohammadzadeh Ali Asghar Khalili |
| |
Affiliation: | 1. Department of Natural Gas Conversion, Gas Research Division, Research Institute of Petroleum Industry (RIPI), Tehran 14665-137, Iran;2. Department of Chemical Engineering, University of Saskatchewan, College of Engineering, 57 Campus Drive, Saskatoon SK, Canada S7N 5A9;3. Chemistry and Chemical Engineering Division, Research Institute of Petroleum Industry (RIPI), Tehran 14665-137, Iran |
| |
Abstract: | The zonal analysis of industrial furnaces is considered with three-dimensional radiative heat transfer, incorporated with the mathematical zone method. In this method exchange areas are determined by simplified numerical integration in three dimensions for surface-surface, surface-gas and gas–gas zones for absorbing and emitting media. By focusing on new strategies to overcome the drawbacks of evaluating direct exchange areas, it is shown that the zone method is an effective numerical method for modeling three-dimensional thermal performance of gas-filled enclosures. Also the developed method for evaluating of exchange area is presented and compared with other methods in both sides of CPU time and accuracy. The method can decrease about 70% in error of calculation of some exchange areas as compared with the other numerical methods. |
| |
Keywords: | Radiation heat transfer Zone method Exchange area Mathematical modeling Furnace |
本文献已被 ScienceDirect 等数据库收录! |
|