Study of temperature distribution in the ground

IF 0.5 4区工程技术 Q4 ENGINEERING, CHEMICAL

Chemical and Process Engineering-Inzynieria Chemiczna I Procesowa Pub Date : 2023-11-06 DOI:10.24425/CPE.2019.126106

Barbara Larwa, K. Kupiec

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引用次数: 6

Abstract

Knowledge of the temperature distribution in subsurface layers of the ground is important in the design, modelling and exploitation of ground heat exchangers. In this work a mathematical model of heat transfer in the ground is presented. The model is based on the solution of the equation of transient heat transfer in a semi-infinite medium. In the boundary condition on the surface of the ground radiation fluxes (shortand long-wave), convective heat flux and evaporative heat flux are taken into account. Based on the developed model, calculations were carried out to determine the impact of climatic conditions and the physical properties of the ground on the parameters of the Carslaw-Jeager equation. Example results of calculated yearly courses of the daily average temperature of the surface of the ground and the amount of particular heat fluxes on the ground surface are presented. The compatibility of ground temperature measurements at different depths with the results obtained from the Carslaw–Jaeger equation is evaluated. It was found that the temperature distribution in the ground and its variability in time can be calculated with good accuracy.

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地温分布的研究

了解地下次表层的温度分布对地下热交换器的设计、建模和开发非常重要。本文建立了地下传热的数学模型。该模型基于半无限介质中瞬态传热方程的求解。在地表辐射通量(短波和长波)的边界条件下，考虑了对流热流通量和蒸发热流通量。基于开发的模型，进行了计算，以确定气候条件和地面物理性质对Carslaw-Jeager方程参数的影响。给出了地表日平均温度和地表特定热通量年变化的计算实例结果。对不同深度地温测量结果与Carslaw-Jaeger方程结果的相容性进行了评价。结果表明，该方法可以较准确地计算出地下温度分布及其随时间的变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical and Process Engineering-Inzynieria Chemiczna I Procesowa 工程技术-工程：化工

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The content, aim and scope of the proposals should comply with the main subject of the journal, i.e. they should deal with mathematical modelling and/or experimental investigations on momentum, heat and mass transfer, unit processes and operations, integrated processes, biochemical engineering, statics and kinetics of chemical reactions. The experiments and modelling may cover different scales and processes ranging from the molecular phenomena up to production systems. The journal language is grammatically correct British English. Chemical and Process Engineering publishes: i) full text research articles, ii) invited reviews, iii) letters to the editor and iv) short communications, aiming at important new results and/or applications. Each of the publication form is peer-reviewed by at least two independent referees.