Heat transfer optimization in internally finned tubes under laminar flow conditions

被引:92
作者
Fabbri, G [1 ]
机构
[1] Univ Bologna, Dipartimento Ingn Energet Nucl & Controllo Ambien, I-40136 Bologna, Italy
关键词
D O I
10.1016/S0017-9310(97)00209-3
中图分类号
O414.1 [热力学];
学科分类号
摘要
In the present work the problem of optimizing the geometry of internally finned tubes in order to enhance the heat transfer under laminar flow conditions is studied. The velocity and temperature distributions on the finned tube cross-section are determined with the help of a finite element model, and a global heat transfer coefficient is calculated. A polynomial lateral profile is proposed for the fins and the geometry is optimized in order to make the heat transferred per unit of tube length or surface as high as possible for a given weight and for a given hydraulic resistance. Finally, the optimum fin profiles obtained by means of a genetic algorithm are shown for different situations. (C) 1998 Elsevier Science Ltd.
引用
收藏
页码:1243 / 1253
页数:11
相关论文
共 15 条
[1]  
Bar-Cohen A., 1990, ADV THERMAL MODELING, V2, P41
[2]  
CESINI G, 1992, P 10 UIT NAT C, P201
[3]  
DUFFIN RJ, 1959, J MATH MECH, V8, P47
[4]   A genetic algorithm for fin profile optimization [J].
Fabbri, G .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1997, 40 (09) :2165-2172
[5]  
FABBRI G, 1995, P 13 UIT NAT C BOL I, P491
[6]  
Kays W.M., 1984, COMPACT HEAT EXCHANG, V3rd
[7]  
LORENZINI E, 1994, INT J HEAT TECHNOL, V12, P137
[8]  
MADAY CJ, 1974, ASME, V96, P161
[9]   GENETIC ALGORITHMS FOR THERMOSCIENCES RESEARCH - APPLICATION TO THE OPTIMIZED COOLING OF ELECTRONIC COMPONENTS [J].
QUEIPO, N ;
DEVARAKONDA, R ;
HUMPHREY, JAC .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1994, 37 (06) :893-908
[10]  
Schmidt E., 1926, Z VER DEUTSCH INGEN, V70, p[885, 947]