FLOW AND GOLD HEAT-STORAGE CHARACTERISTICS OF PHASE-CHANGE EMULSION IN A COILED DOUBLE-TUBE HEAT-EXCHANGER

被引：56

作者：

INABA, H

MORITA, S

机构：

[1] Department of Mechanical Engineering, Faculty of Engineering, Okayama University, Okayama

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 1995年 / 117卷 / 02期

关键词：

FORCED CONVECTION; NON-NEWTONIAN; FLOWS AND SYSTEMS; THERMAL ENERGY STORAGE;

D O I：

10.1115/1.2822541

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper dealt with the flow and cold heat-storage characteristics of the oil (tetradecane, C14H30, freezing point 278.9 K)/water emulsion as a latent heat-storage material having a low melting point. A coiled double-tube heat exchanger was used for the cold hear-storage experiment. The pressure drop, the heat transfer coefficient, and the finishing time of cold heat storage in the coiled tube were measured as experimental parameters. It was understood that the flow behavior of the emulsion as a non-Newtonian fluid had an important role in the present cold heat storage. The useful nondimensional correlation equations for the additional pressure loss coefficient, the heat transfer coefficient, and the cold heal storage time were derived in terms of modified Dean number and hear capacity ratio.

引用

页码：440 / 446

页数：7