Publicou 12 edições por ano
ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508
Indexed in
GRAIN SIZE EFFECTS ON EFFECTIVE THERMAL CONDUCTIVITY OF POROUS MATERIALS WITH INTERNAL THERMAL CONTACT RESISTANCE
RESUMO
We study the effective thermal conductivity of granular porous materials with or without consideration of the thermal contact resistance. A negligible thermal contact resistance means the particles connect well with each other. Otherwise we assume thermal contact resistance layers between the particles forming a network frame in the system We calculate the effective thermal conductivity by a high-efficiency lattice Boltzmann method and examine its dependence on the grain size of porous materials. The results show that the effective thermal conductivity decreases slightly with the averaged grain size for negligible thermal contact resistance, consistent with existing observations in engineering materials studies. When the thermal contact resistance is significant, the effective thermal conductivity decreases sharply as the grain size gets smaller, which agrees with the experimental measurements on nanoporous materials where the particles are not able to contact well with each other and the resistance dominates the thermal transport.
-
Xie Chiyu, Wang Jinku, Wang Dong, Pan Ning, Wang Moran, Lattice Boltzmann Modeling of Thermal Conduction in Composites with Thermal Contact Resistance, Communications in Computational Physics, 17, 4, 2015. Crossref
-
Fang Wen-Zhen, Chen Li, Gou Jian-Jun, Tao Wen-Quan, Predictions of effective thermal conductivities for three-dimensional four-directional braided composites using the lattice Boltzmann method, International Journal of Heat and Mass Transfer, 92, 2016. Crossref
-
Wang Moran, Effective Transport Properties of Porous Media by Modeling, in Handbook of Porous Media, Third Edition, 2015. Crossref
-
Chen Li, Kang Qinjun, Dai Zhenxue, Viswanathan Hari S., Tao Wenquan, Permeability prediction of shale matrix reconstructed using the elementary building block model, Fuel, 160, 2015. Crossref
-
Li Lan, Zheng Huai, Yuan Chao, Hu Run, Luo Xiaobing, Study on effective thermal conductivity of silicone/phosphor composite and its size effect by Lattice Boltzmann method, Heat and Mass Transfer, 52, 12, 2016. Crossref
-
Fang Wen-Zhen, Zhang Hu, Chen Li, Tao Wen-Quan, Numerical predictions of thermal conductivities for the silica aerogel and its composites, Applied Thermal Engineering, 115, 2017. Crossref
-
Askari Roohollah, Hejazi S. Hossein, Sahimi Muhammad, Effect of deformation on the thermal conductivity of granular porous media with rough grain surface, Geophysical Research Letters, 44, 16, 2017. Crossref
-
Jithin M., Kumar Nimish, De Ashoke, Das Malay K., Pore-Scale Simulation of Shear Thinning Fluid Flow Using Lattice Boltzmann Method, Transport in Porous Media, 121, 3, 2018. Crossref
-
Dai Yan-Jun, Tang Yu-Qing, Fang Wen-Zhen, Zhang Hu, Tao Wen-Quan, A theoretical model for the effective thermal conductivity of silica aerogel composites, Applied Thermal Engineering, 128, 2018. Crossref
-
Moayeri Mona, Kaflou Ali, Effect of powder shape on effective thermal conductivity of Cu–Ni porous coatings, Journal of Materials Research and Technology, 7, 4, 2018. Crossref
-
Askari Roohollah, Hejazi S. Hossein, Sahimi Muhammad, Thermal Conduction in Deforming Isotropic and Anisotropic Granular Porous Media with Rough Grain Surface, Transport in Porous Media, 124, 1, 2018. Crossref
-
He Ya-Ling, Liu Qing, Li Qing, Tao Wen-Quan, Lattice Boltzmann methods for single-phase and solid-liquid phase-change heat transfer in porous media: A review, International Journal of Heat and Mass Transfer, 129, 2019. Crossref
-
Kan Ankang, Mao Shang, Wang Ning, Shi Bingling, Simulation and Experimental Study on Thermal Conductivity of Nano-Granule Porous Material Based on Lattice-Boltzmann Method, Journal of Thermal Science, 30, 1, 2021. Crossref
-
Yang S., Ukrainczyk N., Koenders E.A.B., Thermal conductivity of crumb-rubber-modified mortar using an inverse meso-scale heat conduction model, Construction and Building Materials, 212, 2019. Crossref
-
Rozzi Elena, Minuto Francesco Demetrio, Lanzini Andrea, Dynamic modeling and thermal management of a Power-to-Power system with hydrogen storage in microporous adsorbent materials, Journal of Energy Storage, 41, 2021. Crossref