基于p阶线性模型的地埋管换热器流体温度分布研究

赵鹏; 张东海; 李晓昭; 张古彬; 寇亚飞; 高蓬辉

doi:10.19912/j.0254-0096.tynxb.2023-0690

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (6) : 51-59. DOI: 10.19912/j.0254-0096.tynxb.2023-0690

基于p阶线性模型的地埋管换热器流体温度分布研究

赵鹏^1,2, 张东海^1~3, 李晓昭^1,2, 张古彬⁴, 寇亚飞⁴, 高蓬辉^1~3

作者信息 +

STUDY ON FLUID TEMPERATURE DISTRIBUTION OF BURIED TUBE HEAT EXCHANGER BASED ON p-ORDER LINER MODEL

Zhao Peng^1,2, Zhang Donghai^1~3, Li Xiaozhao^1,2, Zhang Gubin⁴, Kou Yafei⁴, Gao Penghui^1~3

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文章历史 +

摘要

利用自主研发的分层热响应测试系统,获取沿深度方向上（竖向）管内流体温度实测数据,对比p阶线性分布模型计算结果和实测数据,研究两种典型工况条件下分层岩土介质中管内流体竖向分布规律和最佳p值。结果表明：恒热流工况时,p=-5阶线性分布模型能够准确预测管内流体温度分布;恒温工况时,最佳p值随流量的变化而变化,其关系为：|p|=7.361lnV +6.684。

Abstract

The self-developed stratified thermal response test system was used to obtain the data of fluid temperature in the pipe along the flow direction （vertical）, and then the calculation results of the p-order linear model were compared with the measured data to investigate the temperature distribution law and the optimal p-value of fluid in the pipe for stratification conditions under two typical working conditions. The results show that the p=-5 order linear model can accurately predict the temperature distribution in the pipe under constant heat flow condition. Under constant temperature condition, the optimal p-value varies with flow rate and the relationship is: | p |=7.361 lnV + 6.684.

导出引用

赵鹏, 张东海, 李晓昭, 张古彬, 寇亚飞, 高蓬辉. 基于p阶线性模型的地埋管换热器流体温度分布研究[J]. 太阳能学报. 2024, 45(6): 51-59 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0690

Zhao Peng, Zhang Donghai, Li Xiaozhao, Zhang Gubin, Kou Yafei, Gao Penghui. STUDY ON FLUID TEMPERATURE DISTRIBUTION OF BURIED TUBE HEAT EXCHANGER BASED ON p-ORDER LINER MODEL[J]. Acta Energiae Solaris Sinica. 2024, 45(6): 51-59 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0690

中图分类号： TK513.5

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