Measurements of Thermal Conductivity and Diffusivity of Soil
نویسندگان
چکیده
منابع مشابه
Measurement Thermal Conductivity and Thermal Diffusivity of Chromium Nanofluids
In this study, nanofluids of Chromium (Cr) in water, Ethylene Glycol and Ethanol have been prepared using single step method. The thermal conductivity and diffusivity of these nanofluids were measured via hot wire-photothermal deflection technique. Based on finite difference method (FDM) temperature distribution and photothermal deflection caused by the hot wire inside nanofluids was obtained. ...
متن کاملAnalysis of thermal probe measurements using an iterative method to give sample conductivity and diffusivity data
The application of Microsoft Excel Solver routines to analyze data from a thermal probe placed in a number of samples is described. The successful application of the Solver routine to the thermal probe temperature time data requires the selection of an appropriate time interval. The various critical times are discussed and a method is proposed for selecting the appropriate Solver routine and th...
متن کاملRadiative Thermal Diffusivity and Conductivity of the Upper Mantle
Olivine comprises >60% of the upper mantle, making it the dominant control on heat transport through the lithosphere. Accurate estimates of the thermal diffusivity and thermal conductivity are important to modeling geotherms, estimating lithospheric thickness, determining the depth range of melt generation, etc. Diffusivity and conductivity result from lattice vibration and radiative transport ...
متن کاملSoil profile method for soil thermal diffusivity, conductivity and heat flux: Comparison to soil heat flux plates
Diffusive heat flux at the soil surface is commonly determined as a mean value over a time period using heat flux plates buried at some depth (e.g., 5–8 cm) below the surface with a correction to surface flux based on the change in heat storage during the corresponding time period in the soil layer above the plates. The change in heat storage is based on the soil temperature change in the layer...
متن کاملPhotoacoustic Technique for Thermal Conductivity and Thermal Interface Measurements
The photoacoustic (PA) technique is one of many techniques for characterizing thermal conductivity of materials, including thermal interface conductance or resistance. Compared with other techniques, the PA method is relatively simple, yet is able to provide accurate thermal conductivity data over a wide range of materials and properties. In the last decade, the PA method has been developed and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Agricultural Meteorology
سال: 1985
ISSN: 0021-8588,1881-0136
DOI: 10.2480/agrmet.41.73