Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/15435075.2018.1423980 |
Research on distribution performance of desert sand for heat storage in downcomer | |
Zhu, Guihua1; Lv, Shuo2; Jiang, Feng2; Tan, Dongyang2; Zhang, Jisheng2; Zhao, Ying2; Mu, Shuogui2; Yan, Yongqiang2; Liang, Songquan2 | |
通讯作者 | Lv, Shuo |
来源期刊 | INTERNATIONAL JOURNAL OF GREEN ENERGY |
ISSN | 1543-5075 |
EISSN | 1543-5083 |
出版年 | 2018 |
卷号 | 15期号:2页码:106-112 |
英文摘要 | In this research, desert sand is used as the sensible heat storage medium, which exchanges heat with air in the downcomer to realize heat storage and heat release. The desert sand distribution uniformity has a significant impact on the heat exchange performance and efficiency between desert sand and air for the process of convection in the downcomer. Given the superiority of sensible heat storage in convective heat transfer between desert sand and air, distributors with cylinder or conical bore solid particles and homogeneity performance testing device are designed and manufactured on the basis of convection system equipped with solid particle-air downcomer. Then, the convection experiment between solid sand and air is researched. The greater the desert sand flow rate and higher the volume density, the larger the variance of regional mass flow rate and the worse the homogeneity performance. For the cylinder bore distributor, the smaller the sand particle size is, the greater affected the sand groups can be. The sand homogeneity performance is preferable with the two particle size ranges: 0.18-0.25 mm and 0.15-0.18 mm. The total sand flow rate decreases, but the uniformity improves with the increase of the air flow velocity, and the best distribution performance is achieved at an air velocity of 0.6m/s. However, the distribution performance declines with the air flow velocity persistently increasing because the sand groups are pushed to one pipe side close to the wall. The sand groups deflect seriously with the air flow velocity increasing. |
英文关键词 | Desert sand heat storage homogeneity performance solid particle distributor variance of regional mass flow rate |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000423203500007 |
WOS类目 | Thermodynamics ; Green & Sustainable Science & Technology ; Energy & Fuels |
WOS研究方向 | Thermodynamics ; Science & Technology - Other Topics ; Energy & Fuels |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/210216 |
作者单位 | 1.North Minzu Univ, Sch Chem Engn, Yinchuan, Peoples R China; 2.North Minzu Univ, Sch Mechatron Engn, Yinchuan, Peoples R China |
推荐引用方式 GB/T 7714 | Zhu, Guihua,Lv, Shuo,Jiang, Feng,et al. Research on distribution performance of desert sand for heat storage in downcomer[J],2018,15(2):106-112. |
APA | Zhu, Guihua.,Lv, Shuo.,Jiang, Feng.,Tan, Dongyang.,Zhang, Jisheng.,...&Liang, Songquan.(2018).Research on distribution performance of desert sand for heat storage in downcomer.INTERNATIONAL JOURNAL OF GREEN ENERGY,15(2),106-112. |
MLA | Zhu, Guihua,et al."Research on distribution performance of desert sand for heat storage in downcomer".INTERNATIONAL JOURNAL OF GREEN ENERGY 15.2(2018):106-112. |
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