TEMPERATURE STRATIFICATION IN HOT-WATER STORAGE TANKS

被引：25

作者：

HARIHARAN, K ^{[1
]}

BADRINARAYANA, K ^{[1
]}

MURTHY, SS ^{[1
]}

MURTHY, MVK ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,DEPT MECH ENGN,REFRIGERAT & AIRCONDIT LAB,MADRAS 600036,TAMIL NADU,INDIA

来源：

ENERGY | 1991年 / 16卷 / 07期

关键词：

SOLAR;

D O I：

10.1016/0360-5442(91)90057-S

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experiments have been carried out on a scale model of stratified hot-water storage tanks to study the effects of operating conditions on the thermoclines and on the extraction efficiency. The following parameters were varied: the cold-water temperature (from 30 to 80-degrees-C), hot-water temperature (from 40 to 90-degrees-C), water-flow rate (from 6 to 60 l/h), and L/D ratio (1.56, 2.06, 3.54 and 4.0). Care was taken to keep the total volume and d/D ratio the same for all tanks. It was observed that stratification improves with increasing DELTA-T and water flow rates. L/D values between 3 and 4 are optimal. The extraction efficiency has been correlated by an analytical expression.

引用

页码：977 / 982

页数：6

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