The testing method of soil thermal conductivity is introduced.
介绍了土壤热导率的测试方法,根据传热模型反解法设计了土壤热导率测试系统。
Taking directly buried steam pipeline using centrifugal glass wool as inside insulating material and polyurethane as outside insulating material for example,the thicknesses of inside and outside insulating layers at different soil thermal conductivities are calculated,and the influence of soil thermal conductivity on the insulating layer thickness is analyzed.
以内层保温材料为离心玻璃棉,外层保温材料为聚氨酯的直埋蒸汽管道为例,计算了不同土壤热导率时内、外保温层的厚度,分析了土壤热导率对保温层厚度的影响。
Because of the importance of measurement of ground thermal conductivity for the design of ground-coupled heat pump system,ground thermal conductivity test system is developed using electric-heater method.
土壤导热系数是土壤源热泵中地下埋管换热器设计的重要参数,其大小对钻孔深度与个数有显著影响;针对土壤导热系数的测定对土壤源热泵系统设计的重要性,利用电加热法研制了土壤导热系数测定系统;系统的控制部分基于先进的LonWorks现场总线技术,并结合DDE标准与Visual Basic数据库开发技术构建;整个系统包括控制器的软硬件设计以及上位机监控软件设计;系统根据实验条件对输入功率进行了精确地控制,实验获得的数据满足进行土壤导热系数计算的需要。
The ground heat exchanger size and cost are highly dependent on the ground thermal conductivity.
根据传热学理论,利用土壤热响应的原理,建立了一套可用于现场测量土壤导热系数的方法,测试方法方便快捷,计算方法简单,实测结果与传统的查手册结果比较,更准确可靠,能确保地源热泵系统设计的可靠性。
In this paper,the two parameters that are close related to surface energy balance: surface albedo and soil heat conductivity are analyzed based on the data observed on clear day of year 2002 at the station in sparse vegetation site in Dunhuang.
利用"敦煌试验"稀疏植被站2002年典型晴天的资料,分析了与地表能量平衡最密切的两个参数:地表反照率和土壤热传导率的特征。
Methods for Determining the Thermal Conductivity of Underground Soil and Results Analysis;
地下土壤导热系数计算方法及结果分析
Influence Factors Analysis on In situ Test of Ground Thermal Conductivity
现场测定土壤导热系数的影响因素分析
Such soil can improve conductivity over threefold.
这种土壤可使导热率提高到3倍（高2倍）上。
Fractal model for efficient thermal conductivity of soil sample
土壤样品有效导热系数的分形计算模型
The warm oil will produce thawing of ice rich soil adjacent to the pipeline when it crosses through permafrost zone, resulting in thaw settlement of the pipeline and variation of soil properties.
埋地热油管道通过永冻地带时，会导致土壤解冻，进而导致管道沉陷和土壤物性参数变化。
Theoretical and Experimental Study on Heat and Moisture Transfer in Soil and Ground-Source Heat Pump;
土壤热湿传递与土壤源热泵的理论与实验研究
Seasonal Soil Thermal Storage by Solar-ground Source Heat Pump in Severe Cold Area
严寒地区太阳能土壤源热泵季节性土壤蓄热
STUDY ON HEAT EXCHANGE PERFORMANCE OF GROUND HEAT EXCHANGERS IN THE WATER-RICH SOIL AREAS
富水土壤地区土壤换热器换热性能的实验研究
soil - determination of the specific electrical conductivity
土壤-电导性比率的测定
THE STUDY OF SOIL TEMPERATURE CHANGE RULE AROUND BURIED PIPES IN GROUND-COUPLED SOURCE HEAT PUMP
土壤源热泵地埋管周围土壤温度变化规律研究
Study on Heat Transfer Characteristics of Embedded Tubes for Ground Coupled Heat Pumps;
土壤耦合热泵地下埋管传热特性分析
Study on the Solar Heating Storage by PCM Assisted Ground Source Heat Pump System;
太阳能相变蓄热辅助土壤源热泵研究
ANALYSIS ON THE GROUND HEAT BALANCE OF GROUND COUPLED HEAT PUMP SYSTEM
土壤源热泵系统地下热平衡问题分析
Simulation Analysis on Phase Change Heat Transfer of Ground-source Heat Pump System in Cold Region
寒区土壤源热泵相变传热的仿真分析
Tropical Soil Biology and Fertility
热带土壤生物学和肥力网(土肥网)
Application of Pedo-transfer Functions in Calculating Saturated Soil Hydraulic Conductivity of Fengqiu County
土壤传递函数在计算土壤饱和导水率中的应用
Heat Transfer Analysis of Vertical U-tube Heat Exchanger for Ground Source Heat Pump System;
土壤热泵垂直U型埋管换热器传热分析
The Research on Heat Transfer of the Vertical Concentric Tube Heat Exchanger in Ground Sourse Heat Pump System;
土壤源热泵套管式垂直埋地换热器的传热研究