期刊
APPLIED ENERGY
卷 119, 期 -, 页码 521-529出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2014.01.030
关键词
Thermal energy storage; Packed bed heat transfer; Sensible heat storage
资金
- Department of Energy [DE-FC36-08GO18151]
A model is presented to predict the fluid and solid temperatures in a packed bed thermal energy storage vessel using compressed gas as heat transfer fluid (HTF). The model is compared to data from an experimental vessel that is 10' tall with a 2.25 '' storage diameter filled with 6 mm diameter alpha-alumina beads, using air as the HTF. The model is validated against this data for two flow rates, and the exergy efficiency of the experimental data is also calculated. Developments in the model include an optimized fluid-solid heat transfer coefficient based on formulas in the literature, incorporating wall heat losses from natural convection on the exterior wall of the vessel, and using temperature-dependent relationships for the thermophysical properties of the gas and alumina. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据