Numerical Study of Non-Gray Radiative Heat Transfer in a T-shaped Furnace

سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 402

فایل این مقاله در 11 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

JR_ADMTL-13-1_004

تاریخ نمایه سازی: 27 فروردین 1399

چکیده مقاله:

Radiative heat transfer has an important role in many industrial equipment; i.e. furnaces, boilers and high temperature heat exchangers. In this paper, combination of Weighted Sum of Gray Gas Method (WSSGM) and Discrete Ordinate Method (DOM) are used together in order to numerically study the radiative heat transfer behavior in a non-gray participating medium. Moreover, the concept of Blocked-off region for irregular geometries is used to simulate the T-shaped furnace. The effect of different radiative parameters, i.e. scattering coefficient and wall emissivity on thermal behavior and wall heat fluxes is investigated and compared for both gray and non-gray media. The results show thatwhen scattering coefficient increases, more radiation is scattered in the medium and therefore less heat flux reaches the walls such that by increasing scattering coefficient from 1.0 to 5.0, the incident radiative heat flux decreases up to 15% in some parts of bottom wall. It is seen that by increasing wall emissivity from 0.5 to 1.0, wall heat flux increases more than 60%. Moreover, results show that, by increasing the temperature, the maximum error strongly increases which indicates that in many engineering problems, the gray medium assumption leads to great error in results.

کلیدواژه ها:

نویسندگان

Amin Al Taha

Department of Mechanical Engineering, Kerman Branch, Islamic Azad University, Kerman, Iran

MohamadMehdi Keshtkar

Department of Mechanical Engineering, Kerman Branch, Islamic Azad University, Kerman, Iran

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • Sakami, M., Charette, A., Application of a Modifed Discrete Ordinates ...
  • Koo, H. M., Goutière, R. V., Le, V., and Song, ...
  • Talukdar, P., Discrete Transfer Method with The Concept of Blocked-Off ...
  • Borjinia, M. N., Guedri, K., and Said, R., Modeling of ...
  • Han, S. H., Baek, S. W., and Kim, M. Y., ...
  • Jang, J. H., Lee, D. F., Kim M. Y., and ...
  • Keshtkar, M. M., Gandjalikhan Nassab, S. A., Theoretical Analysis of ...
  • Ansari, A. B., Gandjalikhan Nassab, S. A., Study of Laminar ...
  • Abbassi, M. A., Guedri, K., Borjini, M. N. Halouani, K., ...
  • Payan, S., Hosseini Sarvari, S. M., and Behzadmehr, A., Inverse ...
  • Payan, S., Farahmand, A., and Hosseini Sarvari, S. M., Inverse ...
  • Zeyghami, M., Rahman, M. M., Analysis of Combined Natural Convection ...
  • Nenad, D. J., Srdjan, V., Ivan, D., and Aleksandar, R., ...
  • Chishty, M. A., Bolla, M., Hawkes, E., Pei, Y., and ...
  • Wang, C., Geb, W., and He, B., A Full-Spectrum K-Distribution ...
  • Keshtkar, M. M., Amiri, B., Numerical Simulation of Radiative-Conductive Heat ...
  • Ren, T., Modest, M. F., and Roy, S., Influence of ...
  • Yang, X., Clements, A., Szuhánszki, J., Huang, X., Farias O., ...
  • Ge, L., Gong, K., Cang, Y., Luo, Y., Shi, X., ...
  • Shiue, R., Gao, Y., Tan, C., Peng, C., Zheng, J., ...
  • Yin, C., Rosendahl, L. A., New Weighted Sum of Gray ...
  • Henrion, L., Gross, M. C., Fernandez, S. F., Paul, C., ...
  • Dombrovsky, A., Dembelea, S., Wend, J. X., and Sikic, I., ...
  • Atashafrooz, M., Gandjalikhan Nassab, R., Lari, K., Numerical Analysis of ...
  • Fathi, M., Hosseini, R., and Rahmani, M., Calculations of Non-Gray ...
  • Chu, H., Ren, F., and Zheng, S., A Comprehensive Evaluation ...
  • Boutoub, A., Benticha, H., Non-Gray Radiation Analysis in Participating Media ...
  • Jozaalizadeh, T., Toghraie, D., Numerical Investigation Behavior of Reacting Flow ...
  • Golestaneh, S. M., Toghraie, D., Separation of Particles from The ...
  • Dabiri, S., Khodabandeh, E., Poorfar, Khoeini A., Mashayekhi, R., Toghraie, ...
  • Hemmat Esfe, M., Hajmohammad, H., Toghraie, D., Rostamian, H., Mahian ...
  • Naderi, M., Ahmadi, G., Zarringhalam, M., Akbari, O., and Khalili, ...
  • Ahmadi, G., Toghraie, D., and Akbari, O., Energy, Exergy and ...
  • Ahmadi, G., Toghraie, D., and Akbari, O. A., Technical and ...
  • Modest, M. F., Radiative Heat Transfer, Second ed. 2003: Academic ...
  • Smith, T. F., Shen, Z. F., and Friedman, J. N., ...
  • Fiveland, W. A., Discrete-Ordinates Solutions of the Radiativetransport Equation for ...
  • Goutierea, V., Liub, F., and Charette, A., An Assessment of ...
  • نمایش کامل مراجع