Han, Xiaoxiao, Tian, Yuan and Zhao, Chang-Ying (2012) A phase field model for heat transfer in a metal foam-embedded latent thermal energy storage (LTES) system. In: 8th International Symposium on Heat Transfer, Beijing, China, 21st-24th October, 2012. Published in: Proceedings of the 8th International Symposium on Heat Transfer (In Press)

Text WRAP_Tian_0858342-es-211112-isht-8_2012_a_phase_field_model_for_heat_transfer_in_a_metal_foam-embedded_latent_thermal_energy_storage_ltes_system.pdf - Published Version Restricted to Repository staff only Download (376Kb)

Abstract

A phase field model substitutes the boundary conditions by partial differential equations for the evolutions of phase fields. Therefore this mathematical method deals with free boundary problems without having to trace phase interface positions. Phase field model is for the first time employed to solve the phase change problem in a metal foam-embedded Latent Thermal Energy storage (LTES) system. It provides great potentials of being extended to consider complicated mechanism during melting: coupled phase change and volume change of PCMs. Validation studies are also carried out by comprising results between the model predictions and the experimental data in existing literatures. Two dimensionless groups of the material and structure parameters are identified to control the effectiveness of the system. An Effectiveness Map is also produced to distinguish the conditions under which incorporating metal foam into the PCMs is sensitive, lowly sensitive or irrelevant. The map provides a useful tool to guide the metal selection and structure design of the metal foams when used to enhance heat transfer property of PCMs. Finally case studies are also carried out by applying the map.

Item Type:	Conference Item (Paper)
Subjects:	Q Science > QC Physics T Technology > TP Chemical technology
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Heat -- Transmission -- Mathematical models, Energy storage -- Mathematical models, Metal foams
Journal or Publication Title:	Proceedings of the 8th International Symposium on Heat Transfer
Publisher:	Chinese Press
Date:	October 2012
Status:	Not Peer Reviewed
Publication Status:	In Press
Funder:	Engineering and Physical Sciences Research Council (EPSRC), University of Warwick, Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC)
Grant number:	EP/F061439/1 (EPSRC), RD07110 (UoW), 51176110 (NSFC)
Conference Paper Type:	Paper
Title of Event:	8th International Symposium on Heat Transfer
Type of Event:	Conference
Location of Event:	Beijing, China
Date(s) of Event:	21st-24th October, 2012
References:	[1] D. Zhou, C.Y. Zhao, Y. Tian, 2012, Review on thermal energy storage with phase change materials (PCMs) in building applications, Appl Energ,92,pp.593-605. [2] M.M. Farid, A.M. Khudhair, S.A.K. Razack, S. Al-Hallaj, 2004, A review on phase change energy storage: materials and applications, Energ Convers Manage ,45,pp.1597-615. [3] B. Zalba, J.M. Marı́n, L.F. Cabeza, H. Mehlin, 2003,Review on thermal energy storage with phase change: materials, heat transfer analysis and applications, Appl Therm Eng,23,pp.251-83. [4] L. Fan, J.M. Khodadadi, 2011,Thermal conductivity enhancement of phase change materials for thermal energy storage: A review, Renew Sust Energ Rev 2011,15,pp.24-46. [5] Z. Chen, M. Gu, D. Peng, 2010, Heat transfer performance analysis of a solar flat-plate collector with an integrated metal foam porous structure filled with paraffin, Appl Therm Eng,30,pp.1967-73. [6] W.Q. Li, Z.G. Qu, Y.L. He, W.Q. Tao, 2012,Experimental and numerical studies on melting phase change heat transfer in open-cell metallic foams filled with paraffin, Appl Therm Eng,37,pp.1-9. [7] C.Y. Zhao, W. Lu, Y. Tian, 2010,Heat transfer enhancement for thermal energy storage using metal foams embedded within phase change materials (PCMs), Sol Energy,84,pp. 1402-12. [8] O. Mesalhy, K. Lafdi, A. Elgafy, K. Bowman, 2005,Numerical study for enhancing the thermal conductivity of phase change material (PCM) storage using high thermal conductivity porous matrix, Energ Convers Manage,46,pp.847-67. [9] Y. Tian, C.Y. Zhao, 2011, A numerical investigation of heat transfer in phase change materials (PCMs) embedded in porous metals, Energy,36,pp.5539-46. [10] J.L. Boldrini, B.M.C. Caretta, E. Fernández-Cara, 2009, Analysis of a two-phase field model for the solidification of an alloy, J Math Anal Appl ,357,pp.25-44. [11] P.R. Cha, D.H. Yeon, J.K. Yoon, 2001, A phase field model for isothermal solidification of multicomponent alloys, Acta Mater,49,pp.3295-307. [12] C. Charach, P.C. Fife, 1999,Phase field models of solidification in binary alloys: capillarity and solute trapping effects, J Cryst Growth,198–199, Part 2,pp.1267- 74. [13] M. Ohno, K. Matsuura, 2010, Quantitative phase-field modeling for two-phase solidification process involving diffusion in the solid, Acta Materialia,58,pp.5749-58. [14] N. Provatas, K. Elder, 2010, Phase-Field Methods in Materials Science and Engineering, John Wiley & Sons, Germany. [15] V.V. Calmidi, R.L. Mahajan, 1999,The effective thermal conductivity of high porosity fibrous metal foams, J Heat Transf ,121,pp. 466-71. [16] J. Pan, X. Han, W. Niu, R.E. Cameron,2011, A model for biodegradation of composite materials made of polyesters and tricalcium phosphates, Biomaterials, 32,pp.2248-55.
URI:	http://wrap.warwick.ac.uk/id/eprint/52075

Request changes to a record

Actions (login required)

View Item