<p>This book presents the main methods used for thermal properties measurement. It aims to be accessible to all those, specialists in heat transfer or not, who need to measure the thermal properties of a material. The objective is to allow them to choose the measurement method the best adapted to th
Thermal properties of soils
✍ Scribed by Farouki O.T.
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No coin nor oath required. For personal study only.
✦ Synopsis
Hanover, New Hampshire: US Army corps of engineers, Cold regions research and engineering laboratory. – 1981. – 150 p.
Монография Теплофизические свойства грунтовIntroductionSoil and soil thermal properties
Importance of soil thermal properties
Scope and purpose of this monograph,Mechanisms of heat transfer in soils
Heat conduction
Convection
Radiation
Evaporation-condensation process
Other effects on soil heat transferThe effect of compositional, volumetric and other structural factors on the thermal properties of soils
Composition and other structural factors
Effect of the volumetric ratios of the constituents
Correlations between thermal conductivity and soil density or porosity
Effects of porosity and density on other thermal propertiesThe effect of water and its migration on the thermal properties of soils
Properties of water in soils and the influence of temperature
The effects of the amount and nature of water
Combined moisture and heat transfer in soils caused by temperature gradients
Combined moisture and heat transfer during soil freezingFurther influences on the thermal properties of soils
Properties of soil components influencing thermal behavior plus the effect of temperature
Effects of temperature on thermal properties of soils
Effects of ions, salts and other solutes on soil thermal properties
Effects of additives
Hysteresis and history
Organic factors
Direction of heat flow
Convectional effectsMeasurement of thermal properties of soils
Steady state methods
Transient methods
Comparison of results from probe and GHP testsMethods for calculating the thermal conductivity of soils
Parallel or series flow equations and the geometric mean
Smith's method for dry soils
Kersten's empirical equations
Mickley's method
Gemant's method
De Vries' method
The empirical equations of Van Rooyen and Winterkorn
The method of Kunii and Smith
The modified resistor equation
McGaw's conductance equation
Johansen's method
Trends shown by the various methods
Evaluation of the methodsDiscussion and conclusions
The condition of water in soils
The degree of saturation
Effect of increase in temperature above 0°C
Moisture and heat transfer
Effects of ions and salts
Additives, contacts and interfacial effects
Frozen soil factors
Factors in measurements of thermal conductivity
Applicability of the thermal conductivity methods
Suggestions for further research
✦ Subjects
Горно-геологическая отрасль;Физика пород, пластов, массивов
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