Temperature redistribution modelling during intermittent microwave convective heating

被引：39

作者：

Kumar, Chandan ^{[1
]}

Joardder, M. U. H. ^{[1
,2
]}

Karim, Azharul ^{[1
]}

Millar, Graeme J. ^{[1
]}

Amin, Zakaria ^{[1
]}

机构：

[1] Queensland Univ Technol, Sci & Engn Fac, Brisbane, Qld 4001, Australia

[2] Rajshahi Univ Engn & Technol, Dept Mech Engn, Rajshahi, Bangladesh

来源：

10TH INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING (ICME 2013) | 2014年 / 90卷

关键词：

Intermittent microwave convective heating; drying; temperature redistribution; modelling; microwave; convective; MULTIPHASE POROUS-MEDIA; DIELECTRIC-PROPERTIES; MOISTURE;

D O I：

10.1016/j.proeng.2014.11.770

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microwave power is used for heating and drying processes because of its faster and volumetric heating capability. Non-uniformtemperature distributionduring microwaveapplication is a major drawbackof these processes. Intermittent application of microwavepotentially reduces the impact of non-uniformity and improves energy efficiencyby redistributing the temperature. However, temperature re-distribution during intermittent microwave heating has not been investigated adequately. Consequently, in this study, a coupled electromagnetic with heat and mass transfer model was developed using the finite element methodembedded in COMSOL-Multyphysics software. Particularly, the temperature redistribution due to intermittent heating was investigated. A series of experiments were performed to validate the simulation. The test specimen was an apple and the temperature distribution was closely monitored by a TIC (Thermal Imaging Camera). The simulated temperature profile-matched closely with thermal images obtained from experiments. (C) 2014 The Authors. Published by Elsevier Ltd.

引用

页码：544 / 549

页数：6

共 16 条

[11] Heat and mass transfer modeling of the osmo-convective drying of yacon roots (Smallanthus sonchifolius)
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