Experimental and numerical analysis of electrical metal foam heater

被引:10
作者
Amori, Karima E. [1 ]
Laibi, Hussein Alwan [1 ]
机构
[1] Univ Baghdad, Dept Mech Engn, Baghdad, Iraq
关键词
Metal foam; Porous; Finite Volume Method (FVM); Electric heater; THERMAL-ANALYSIS; EXCHANGERS; FLOW;
D O I
10.1016/j.energy.2011.03.062
中图分类号
O414.1 [热力学];
学科分类号
摘要
A novel concept of air heater using a heating element made from Aluminum metal porous disc surrounded by a DC resistive electrical heater inserted in the mid-plane of a copper tube of (52.8 mm) diameter and (480 mm) length is presented herein. Study of the developed heater is conducted; using different porous disc thicknesses of (20, 40, 60 mm), heater wall temperatures (106 degrees C and 119 degrees C), and flow rates rare varied from (100-300 L/min). Al-metal foam disc has been made using the metal powder technology. Different resistive electrical heaters according to the type of porous disc used have been manufactured. A 2-D computational model is developed, using continuity, momentum, and energy equations for turbulent forced flow in plain tube, while adopting Darcy's model in the porous disc region. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4524 / 4530
页数:7
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