水平直埋供热管道热损失影响因素敏感性分析  

Sensitivity analysis on influencing factors of heat loss in horizontally and directly buried heating pipes

作　　者：刘鸿恺 白莉[1] 郭禹歧 LIU Hong-kai;BAI Li;GUO Yu-qi(School of municipal&environmental engineering,Jilin Jianzhu university,Changchun 130118,China)

机构地区：[1]吉林建筑大学市政与环境工程学院,长春130118

出　　处：《吉林建筑大学学报》2020年第5期41-48,共8页Journal of Jilin Jianzhu University

基　　金：国家重点研发计划子课题(2016YFC0700103-06);吉林省科技发展计划项目(20190303125SF).

摘　　要：本文利用单因素敏感性分析方法对影响供热直埋管道热损失的6个主要因素进行敏感性分析.得出以下结论:各因素对管道热损失的影响程度从大到小依次为供回水平均温度、保温材料导热系数、钢管外径、保温层厚度、土壤导热系数和覆土深度,其中覆土深度的影响程度要远小于其他5个因素.In this paper,a single factor sensitivity analysis method was used to analyze the sensitivity of six main factors that affect the heat loss of a directly-buried pipeline.The following conclusions are drawn:the influence degree of each factor in descending order is the mean temperature of supply and return water,thermal conductivity of insulation material,steel pipe outside diameter,insulation thickness,thermal conductivity of soil and covering depth,among which the influence degree of covering depth is far less than the other five factors.

关 键 词：热损失 影响因素 敏感度 

分 类 号：TU995.3[建筑科学—供热、供燃气、通风及空调工程]