OPTIMIZATION OF AN ABSORBER PLATE FIN HAVING A STEP-CHANGE IN LOCAL THICKNESS

被引:36
作者
HOLLANDS, KGT
STEDMAN, BA
机构
[1] Solar Thermal Research Laboratory, Department of Mechanical Engineering, University of Waterloo, Waterloo
关键词
Absorber plates - Fin material - Step-change shape;
D O I
10.1016/0038-092X(92)90157-6
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
Solar collectors having "tube-and-fin" absorber plates have traditionally used rectangular fins. The introduction of a "step-change" in fin thickness, so that the fin is thinner far from the tube, permits a savings in material content. Through heat transfer analysis, this paper derives an expression for the efficiency of a fin of this step-change shape, and applies it to the problem of finding the savings in material this shape permits. The results indicate that roughly a 20% reduction in fin material is possible.
引用
收藏
页码:493 / 495
页数:3
相关论文
共 4 条
[1]  
DUFFIE JA, 1980, SOLAR ENG THERMAL PR, P214
[2]  
ECKERT ER, 1972, ANAL HEAT MASS TRANS, P88
[3]  
OLSSON G, 1981, P SOLAR WORLD FORUM, V1, P163
[4]  
STEDMAN BA, 1986, OPTIMIZATION ABSORBE