HEAT-TRANSFER IN A LATENT HEAT-STORAGE SYSTEM

被引：17

作者：

CHOI, HS ^{[1
]}

SHIN, BC ^{[1
]}

KIM, SD ^{[1
]}

机构：

[1] KOREA INST SCI & TECHNOL, DEPT CHEM ENGN, SEOUL 130650, SOUTH KOREA

来源：

ENERGY | 1989年 / 14卷 / 09期

关键词：

Crystals--Thermal Properties - Flow of Fluids - Fluids--Thermal Effects - Heat Transfer--Analysis - Sodium Compounds;

D O I：

10.1016/0360-5442(89)90022-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The heat-recovery rate has been determined in a latent-heat storage unit using Na2HPO4&middot 12H2O as a heat-storage medium. The effects of the liquid flow rate and inlet temperature of the heat-transfer fluid on the heat-recovery rate have been determined. The heat-recovery rate decreases sharply at the beginning of the heat-recovery stage. The measured thermal resistances during heat recovery are found to be smaller than the calculated values since the crystals of Na2HPO4&middot 12H2O grow in dendritic shapes which act as fins for heat transfer. The thickness of the crystallized heat-storage material has been correlated in terms of Fourier, Stefan, and Reynolds numbers.

引用

页码：513 / 524

页数：12

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