填埋场底部有水循环管情况下温度变化分析  

Analysis of temperature changes under the condition of water circulation pipes at the bottom of landfills

作　　者：张亦凡 雷浩 吴珣[3,4] Zhang Yifan;Lei Hao;Wu Xun(Shangdong Provincial Architectural Design Institute Co.,Ltd.,Jinan 250001,China;Science and Technology College of Hubei University of Arts and Science,Xiangyang 441025,China;Hohai University,Nanjing 210024,China;Anhui Province Tongyuan Environmental Energy Conservation Co.,Ltd.,Hefei 230022,China)

机构地区：[1]山东省建筑设计研究院有限公司,山东济南250001 [2]湖北文理学院理工学院,湖北襄阳441025 [3]河海大学,江苏南京210024 [4]安徽省通源环境节能股份有限公司,安徽合肥230022

出　　处：《能源与环保》2024年第8期38-43,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家自然科学基金资助项目(42002288);国家重点研发计划(2023YFC3707905)。

摘　　要：为了减少填埋场中温度升高对衬垫系统的危害,对填埋场底部有水循环管情况下衬垫层温度变化进行研究。针对水循环系统建立了热传导数学模型,并求得了解析解,通过与Comsol的对比,验证了模型及其解答的正确性。根据解析解分析了不同情况下水循环系统对垃圾填埋场衬垫系统温度的影响情况。研究表明,循环水温度和热交换系数对水循环管的降温性能有较大的影响,水循环管对上下层周围土体的温度也有影响,影响范围为4 m左右。In order to reduce the harm of temperature increase in landfills on the liner system,the temperature changes under the condition of water circulation pipes at the bottom of the landfills were studied.A heat conduction mathematical model was established for the water circulation system,and an analytical solution was obtained.The correctness of the model and its solution was verified through comparison with Comsol.Based on the analytical solution,the influence of the water circulation system on the temperature of the landfills liner system under different conditions was analyzed.Research shows,the temperature of the circulating water and heat transfer coefficients have a significant impact on the cooling performance of the water circulation pipes;he water circulation pipes also affect the temperature of the surrounding soil above and below,with an influence range of about 4 m.

关 键 词：填埋场 温度 水循环管 热传导模型 衬垫系统 

分 类 号：X705[环境科学与工程—环境工程] X706