Library Subscription: Guest
Home Archives Thermal Letter Officers Future meetings Assembly for International Heat Transfer Conferences
International Heat Transfer Conference 16

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

GAS-SOLID FLOW AND HEAT TRANSFER CHARACTERISTICS OF A FLUIDIZED BED REACTOR FOR SOLAR THERMAL APPLICATIONS

Selvan Bellan
Center of Transdisciplinary Research, Niigata University, Ikarashi 2-no cho 8050, Nishi-ku, Niigata 9502181, Japan; Pacific Rim Solar Fuel System Research Center, Niigata University, Ikarashi 2-no cho 8050, Nishi-ku, Niigata 950-2181, Japan

Koji Matsubara
Faculty of Engineering, Niigata University: Professor, Doctor of Engineering, Ikarashi 2-no cho 8050, Nishi-ku, Niigata 950-2181, Japan; Pacific Rim Solar Fuel System Research Center, Niigata University, Ikarashi 2-no cho 8050, Nishi-ku, Niigata 950-2181, Japan

Nobuyuki Gokon
Center of Transdisciplinary Research, Niigata University, Ikarashi 2-no cho 8050, Nishi-ku, Niigata 9502181, Japan; Pacific Rim Solar Fuel System Research Center, Niigata University, Ikarashi 2-no cho 8050, Nishi-ku, Niigata 950-2181, Japan

Tatsuya Kodama
Faculty of Engineering, Niigata University: Professor, Doctor of Engineering, Ikarashi 2-no cho 8050, Nishi-ku, Niigata 950-2181, Japan; Pacific Rim Solar Fuel System Research Center, Niigata University, Ikarashi 2-no cho 8050, Nishi-ku, Niigata 950-2181, Japan

Hyun-Seok Cho
Center of Transdisciplinary Research, Niigata University, Ikarashi 2-no cho 8050, Nishi-ku, Niigata 9502181, Japan; Pacific Rim Solar Fuels Research Center, Niigata University, 8050 Ikarashi 2-nocho, Niigata 950-2181, Japan

Issei Tsuchida
Graduate School of Science & Technology, Niigata University, 8050 Ikarashi 2-nocho, Niigata 950-2181, Japan

DOI: 10.1615/IHTC16.mpf.023665
pages 6519-6527


KEY WORDS: Two-phase/Multiphase flow, Numerical simulation and super-computing, Solar reactor

Abstract

In concentrated solar thermal industry, fluidized-bed technology has been used to produce hydrogen and synthetic gas by two-step water splitting cycles and gasification of coal cokes respectively. A two tower fluidized bed reactor has been developed in this study for solar thermochemical conversions. To study the granular flow and heat transfer characteristics of the two tower fluidized bed reactor, a numerical model has been developed by combined approach of discrete element method and computational fluid dynamics. Particle collision dynamics has been solved by the spring-dashpot model based on the soft-sphere method. Discrete ordinate radiation model has been used to solve the radiative transfer equation. To validate the model, the predicted heat transfer characteristics of the bed have been compared with the reported experimental data. A reasonable agreement has been found between the predicted and experimental results. Particulate flow dynamics of the bed filled with ceria powder is presented with temperature distributions. Using this model, the key operating parameters can be optimized.

Purchase $25.00 Check subscription Publication Ethics and Malpractice Recommend to my Librarian Bookmark this Page