Study on thermal and energy-saving performances of pipe-embedded wall utilizing low-grade energy | |
Zhou, Liqun1; Li, Chaojie2 | |
2020-07-25 | |
发表期刊 | Applied Thermal Engineering |
ISSN | 13594311 |
卷号 | 176期号:176 |
摘要 | Building energy performance improvement has received much attention in recent years. In this paper, the pipe-embedded wall integrated with low-grade energy was reported, which can be used to reducing the energy consumption effectively on space heating and cooling. The computational fluid dynamics (CFD) method was adopted to study the thermal performance of the pipe-embedded wall. An indoor experiment was conducted to verify the accuracy of the numerical model. The simulation data was agreed very well with the experimental result. The influence of inlet water temperature, mass flow rate and location of the embedded pipe has been evaluated under steady state. The results show that the pipe-embedded wall could achieve the best cooling or heating performance, when the pipes are in the middle location of the wall. The mass flow rate has little effect on the heat loss of the wall, but has a significant effect on the heat transfer of the circulating fluid. In the transient analysis, the pipe-embedded wall can reduce 13% of total heat gain in cooling season and 33% of heat loss in winter. The results indicate that the pipe-embedded wall has the advantages to utilize directly low-grade energy for reducing building cooling/heating load. The study also provides guidance for the design and optimization of low-energy buildings. © 2020 Elsevier Ltd |
关键词 | Computational fluid dynamics Cooling Energy conservation Energy utilization Heat losses Mass transfer Structural design Transient analysis Building energy performance Computational fluid dynamics methods Design and optimization Heating and cooling Heating performance Inlet water temperatures Low energy buildings Thermal Performance |
DOI | 10.1016/j.applthermaleng.2020.115477 |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
WOS类目 | Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics |
WOS记录号 | WOS:000553967000053 |
出版者 | Elsevier Ltd |
EI入藏号 | 20202108694344 |
EI主题词 | Walls (structural partitions) |
EI分类号 | 408.1 Structural Design, General - 408.2 Structural Members and Shapes - 525.2 Energy Conservation - 525.3 Energy Utilization - 641.2 Heat Transfer - 641.3 Mass Transfer - 723.5 Computer Applications |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/103343 |
专题 | 石油化工学院 |
通讯作者 | Li, Chaojie |
作者单位 | 1.Lanzhou Univ Technol, Coll Petrochem Engn, Lanzhou 730050, Peoples R China; 2.Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China |
第一作者单位 | 石油化工学院 |
第一作者的第一单位 | 石油化工学院 |
推荐引用方式 GB/T 7714 | Zhou, Liqun,Li, Chaojie. Study on thermal and energy-saving performances of pipe-embedded wall utilizing low-grade energy[J]. Applied Thermal Engineering,2020,176(176). |
APA | Zhou, Liqun,&Li, Chaojie.(2020).Study on thermal and energy-saving performances of pipe-embedded wall utilizing low-grade energy.Applied Thermal Engineering,176(176). |
MLA | Zhou, Liqun,et al."Study on thermal and energy-saving performances of pipe-embedded wall utilizing low-grade energy".Applied Thermal Engineering 176.176(2020). |
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zhou2020.pdf(4089KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 |
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