Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media
المؤلفون المشاركون
An, Chen
Su, Jian
da Silva, Alice Cunha
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-02-22
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
In this work, we studied the transient combined convection and radiation of multilayer spherical media with volumetric heat generation, extending the previous work on the particular case of a spherical body subjected to radiative cooling.
The proposed lumped models were obtained through two-point Hermite approximations for the average temperature and heat flux in each layer.
For the average temperature, the plain trapezoidal rule (H0,0 approximation) was employed in all layers, except for the innermost layer, where the second-order two-side corrected trapezoidal rule (H2,1 approximation) was utilized.
For the heat flux, the plain trapezoidal rule (H0,0 approximation) was employed for all the layers.
The transient heat conduction in a TRISO-coated fuel particle being composed of five layers (namely, fuel kernel, buffer of porous carbon, inner pyrocarbon, silicon carbide, and outer pyrocarbon) was analyzed using the proposed lumped models, the results of which were verified by comparison with the finite difference solution of the original distributed parameter model.
Parametric studies were conducted to examine the effects of the dimensionless heat generation rate, the radiation-conduction parameter, and the Biot number on the temporal variations of the average temperatures.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
An, Chen& da Silva, Alice Cunha& Su, Jian. 2017. Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1192294
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
An, Chen…[et al.]. Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media. Mathematical Problems in Engineering No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1192294
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
An, Chen& da Silva, Alice Cunha& Su, Jian. Improved Lumped Models for Transient Combined Convective and Radiative Cooling of Multilayer Spherical Media. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1192294
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1192294
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