کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7058868 1458078 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
WSGG correlations based on HITEMP2010 for computation of thermal radiation in non-isothermal, non-homogeneous H2O/CO2 mixtures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
WSGG correlations based on HITEMP2010 for computation of thermal radiation in non-isothermal, non-homogeneous H2O/CO2 mixtures
چکیده انگلیسی
In this study, new coefficients for the weighted-sum-of-gray-gas (WSGG) model are proposed based on the up-to-date HITEMP2010 database. The coefficients are determined for gas mixtures of water vapor and carbon dioxide with partial pressure (or molar concentration) ratios equal to 1.0 and 2.0, representing typical products of the combustion of fuel oil and methane. The correlations are valid for pressure path-lengths ranging from 0.001 atm m to 10 atm m, and for temperatures varying between 400 K and 2500 K. The WSGG model with the new coefficients are applied to the solution of the radiation heat transfer in non-isothermal, non-homogeneous gas mixtures, which are then compared with benchmark line-by-line solutions to access the accuracy of the model for a few illustrative test cases. Results show that, in spite of its simplicity in comparison to modern gas models, the WSGG model is still a competitive alternative to provide fast but reliable solutions of radiation heat transfer in non-uniform media.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 64, September 2013, Pages 863-873
نویسندگان
, , , , , ,