Energy efficiency of electrical infrared heating elements

被引：32

作者：

Brown, K. J. ^{[1
]}

Farrelly, R. ^{[1
]}

O'Shaughnessy, S. M. ^{[1
]}

Robinson, A. J. ^{[1
]}

机构：

[1] Trinity Coll Dublin, Dept Mech & Mfg Engn, Dublin, Ireland

来源：

APPLIED ENERGY | 2016年 / 162卷

关键词：

Infrared heaters; Radiation heat transfer; Radiant heat flux distribution; RADIANT; RADIATION; BURNERS; MODEL;

D O I：

10.1016/j.apenergy.2015.10.064

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A measurement system has been designed to characterize the radiant energy efficiency of infrared heating elements. The system also allows for measurement of the radiant heat flux distribution emitted from radiant heater assemblies. To facilitate these, a 6-axis robotic arm is fitted with a Schmidt-Boelter radiant heat flux gauge. A LabVIEW interface operates the robot and positions the sensor in the desired location and subsequently acquires the desired radiant heat flux measurement. To illustrate the functionality of the measurement system and methodology, radiant heat flux distributions and efficiency calculations are performed for a commercially available ceramic heater element for two cases. In the first, a spherical surface is traced around the entire heater assembly and the total radiant power and net radiant efficiency is computed. In the second, 50 cm x 50 cm vertical planes are traced parallel to the front face of the heater assembly at distances between 10 cm and 50 cm and the in-plane power and efficiencies are computed. The results indicate that the radiant efficiencies are strongly dependant on the input power to the element and, for the in-plane efficiencies, depend on the distance from the heater. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：581 / 588

页数：8

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