A COMPARISON BETWEEN THE STEADY-STATE PERFORMANCE OF PARTICULATE AND CONVENTIONAL TUBELESS COLLECTORS

被引：4

作者：

ALNIMR, MA

机构：

[1] Mechanical Engineering Department, Jordan University of Science and Technology, Irbid

来源：

ENERGY CONVERSION AND MANAGEMENT | 1995年 / 36卷 / 10期

关键词：

PARTICULATE COLLECTORS; CONVENTIONAL COLLECTORS; TUBELESS COLLECTORS; A COMPARISON STUDY;

D O I：

10.1016/0196-8904(94)00070-G

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In order to compare the performance of a particulate collector with that of a conventional type, two mathemetical models which describe the steady state behaviour of these collectors are presented. From the results of these models, it is concluded that the efficiency of the particulate collector is higher than that of the conventional type by 5-100%. This improvement in the efficiency by the particulate collector is due to its much lower surface temperature compared to the surface temperature of the conventional tubeless type. It is found that the improvement in performance, resulting from using the particulate collector, is more significant at high Blot and low Peclet numbers. Also, the improvement becomes more apparent as the length of the collector increases.

引用

页码：1007 / 1014

页数：8

共 9 条

[1]

Boeing Aerospace Energy Systems, Small central receiver brayton cycle study, Final Technical Rept SAND, (1984)

[2]

Hunt, Small particle heat exchangers, (1978)

[3]

Abdelrahman, Fumeaux, Suter, Solar Energy, 22, (1979)

[4]

Flamant, Olalde, Solar Energy, 31, (1983)

[5]

Yuen, Miller, Hunt, Int. Comm. Heat Mass Transfer, 13, (1986)

[6]

Evans, Houf, Greif, Crowe, J. Solar Energy Engng, 109, (1987)

[7]

Falcone, Noring, Hackett, Proceedings of the 17th IECEC, (1982)

[8]

Brokaw, Estimating Thermal Conductivities for Nonpolar Gas Mixtures, Industrial & Engineering Chemistry, 47, (1955)

[9]

Boothroyd, Flowing Gas-Solids Suspensions, (1971)

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