现场研究预钻PHC能量堆的传热性能和热力学性能
Jia-Jin Zhou1,2, Ri-Hong Zhang3,4, Jian-Lin Yu5
1Institute of Geotechnical Engineering, Ningbo University, Ningbo, 315211, China. zjjmuforever@163.com.
Scientific reports
|February 8, 2026
概括
一种新的预钻PHC能源安装方法提高了换热管的生存率和热性能. 现场测试证实了效率的提高,并强调了需要考虑结构安全的抗拉应力.
科学领域:
- 地质技术工程 地质技术工程
- 可持续能源系统 可持续能源系统
- 材料科学 材料科学 材料科学
背景情况:
- 能源堆将可再生能源系统集成到建筑基础中.
- 预先钻孔的多脚跟核心 (PHC) 提供结构和热效益.
- 优化安装方法对于能源堆效率和寿命至关重要.
研究的目的:
- 引入和评估PHC能源的预钻安装方法.
- 评估这种方法对热交换管道生存和热性能的影响.
- 在现场条件下研究预钻PHC能量堆的热力学行为.
主要方法:
- 现场测试是在预先钻孔的PHC能源堆上进行的.
- 分布式光纤传感器 (DFOS) 用于监测温度和应变的变化.
- 分析了热传递效率和热诱导应力.
主要成果:
- 预钻装置显著增加了热交换管道生存率.
- 平均传热效率为81.3W/m (夏季) 和65.8W/m (冬季).
- 最大的热诱导应力达到了大约2 MPa (夏季) 和-1.6 MPa (冬季).
结论:
- 预钻PHC能源堆方法提高了系统可靠性和热效率.
- 在冬季条件下的拉力应力需要特别考虑,因为PHC堆的拉力强度较低.
- 这种方法为可持续建筑基础提供了一个有希望的解决方案.
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