TY - JOUR ID - 3826 TI - A Parametric Study of Optimal Number and Location of Radiant Heaters in Enclosures with Participating Media JO - Scientia Iranica JA - SCI LA - en SN - 1026-3098 AU - Amiri, Hossein AU - Coelho, Pedro J. AD - Department of Energy, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advance Technology, Haftbagh Highway, P. O. Box: 76315-117, Kerman, Iran AD - IDMEC, LAETA, Instituto Superior Técnico, Universidade de Lisboa Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal Y1 - 2016 PY - 2016 VL - 23 IS - 1 SP - 206 EP - 217 KW - optimization KW - participating media KW - Micro-genetic algorithm KW - discrete ordinates method KW - anisotropic scattering DO - 10.24200/sci.2016.3826 N2 - An inverse solution technique is applied to the design of radiant enclosures when design variables are discrete and radiation is the dominant mode of heat transfer.The enclosure contains an absorbing, emitting and linear anisotropic scattering medium in radiative equilibrium. The discrete ordinate method is employed to solve the radiative transfer equation. The goal of the design problem is to find the best number and location of discrete equally power heaters which produce the desired (specified) temperature and heat flux profile over the design surface of enclosures. The inverse problem is formulated as an optimization problem and is solved using a micro-genetic algorithm. Results show that the micro genetic algorithm is able to find the optimal solution by just searching a few percent of feasible solutions.The ability of this methodology is demonstrated by finding the optimal number and location of heaters in an irregular enclosure.Then, the effect of some thermophysical properties, such as extinction coefficient, scattering albedo, scattering phase function, and design surface emissivity, on the optimal solution is considered. UR - https://scientiairanica.sharif.edu/article_3826.html L1 - https://scientiairanica.sharif.edu/article_3826_86a631110aefa07067474ff5823e054c.pdf ER -