A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Methodology to Determine Thermal Properties of Soils in Cold Regions from Heat-Pulse Migration Characteristics
https://orcid.org/0000-0002-5701-7108
https://orcid.org/0000-0001-7346-6846
Accurate measurement of the thermal properties (viz., thermal conductivity, thermal resistivity, volumetric heat capacity, and thermal diffusivity) of soils in cold regions necessitates the development of techniques that are robust and efficient and that can incorporate different heat migration mechanisms under the influence of complex initial and boundary conditions. However, devices or the numerical procedures employed to determine them are scanty. In such a scenario, here, a methodology that facilitates the determination of thermal properties of soils in cold regions has been developed based on their heat-pulse migration characteristics (HPMC). To control the temperature of the soil specimen, a temperature-controlled environment chamber has been employed and HPMC was established by using the dual-probe heat-pulse sensor. Furthermore, a technique to estimate the thermal properties of the soil specimen by employing the measured HPMC, which facilitates solving an inverse transient heat conduction problem by using the conjugate gradient method, has been developed. Subsequently, the thermal properties of fine sands corresponding to different initial moisture contents and low temperatures have been determined and the results were compared with those predicted from the HPMC by utilizing interpretation techniques such as the single-point method and nonlinear fitting.
Methodology to Determine Thermal Properties of Soils in Cold Regions from Heat-Pulse Migration Characteristics
https://orcid.org/0000-0002-5701-7108
https://orcid.org/0000-0001-7346-6846
Accurate measurement of the thermal properties (viz., thermal conductivity, thermal resistivity, volumetric heat capacity, and thermal diffusivity) of soils in cold regions necessitates the development of techniques that are robust and efficient and that can incorporate different heat migration mechanisms under the influence of complex initial and boundary conditions. However, devices or the numerical procedures employed to determine them are scanty. In such a scenario, here, a methodology that facilitates the determination of thermal properties of soils in cold regions has been developed based on their heat-pulse migration characteristics (HPMC). To control the temperature of the soil specimen, a temperature-controlled environment chamber has been employed and HPMC was established by using the dual-probe heat-pulse sensor. Furthermore, a technique to estimate the thermal properties of the soil specimen by employing the measured HPMC, which facilitates solving an inverse transient heat conduction problem by using the conjugate gradient method, has been developed. Subsequently, the thermal properties of fine sands corresponding to different initial moisture contents and low temperatures have been determined and the results were compared with those predicted from the HPMC by utilizing interpretation techniques such as the single-point method and nonlinear fitting.
Methodology to Determine Thermal Properties of Soils in Cold Regions from Heat-Pulse Migration Characteristics
https://orcid.org/0000-0002-5701-7108
https://orcid.org/0000-0001-7346-6846
Accurate measurement of the thermal properties (viz., thermal conductivity, thermal resistivity, volumetric heat capacity, and thermal diffusivity) of soils in cold regions necessitates the development of techniques that are robust and efficient and that can incorporate different heat migration mechanisms under the influence of complex initial and boundary conditions. However, devices or the numerical procedures employed to determine them are scanty. In such a scenario, here, a methodology that facilitates the determination of thermal properties of soils in cold regions has been developed based on their heat-pulse migration characteristics (HPMC). To control the temperature of the soil specimen, a temperature-controlled environment chamber has been employed and HPMC was established by using the dual-probe heat-pulse sensor. Furthermore, a technique to estimate the thermal properties of the soil specimen by employing the measured HPMC, which facilitates solving an inverse transient heat conduction problem by using the conjugate gradient method, has been developed. Subsequently, the thermal properties of fine sands corresponding to different initial moisture contents and low temperatures have been determined and the results were compared with those predicted from the HPMC by utilizing interpretation techniques such as the single-point method and nonlinear fitting.
Methodology to Determine Thermal Properties of Soils in Cold Regions from Heat-Pulse Migration Characteristics
Int. J. Geomech.
Sharma, Vikas (author) / Lijith, K. P. (author) / Singh, Devendra Narain (author)
2022-11-01
Article (Journal)
Electronic Resource
English
A methodology to determine thermal conductivity of soils from flux measurement
| Taylor & Francis Verlag | 2016
A methodology to determine thermal conductivity of soils from flux measurement
| Online Contents | 2016
Application of Phase Change Materials for Thermal Stabilization of Soils in Cold Regions
| Springer Verlag | 2024
Design methodology for urban roads in cold regions
| British Library Conference Proceedings | 1998