Detection of thermal response of geomaterials: a critical appraisal

Mondal, Somenath; Narain, SinghDevendra; Shojaei, BaghiniMaryam

doi:10.1680/jemmr.16.00156

Cited by 3 publications

(2 citation statements)

References 83 publications

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“…It should be noted that the conduction is the predominant mechanism of heat transfer through solids (Jackson and Taylor 1986;Mondal et al 2018) and hence, equation of heat conduction is considered.…”

Section: Statement Of the Problemmentioning

confidence: 99%

A finite difference model for undefined end boundary to analyse the heat transfer in dry sands

Mondal

Singh

Tang³

et al. 2020

International Journal of Geotechnical Engineering

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Accurate prediction of thermal regime (i.e., the variation of soil temperature, θ, and heat flux,  ) to investigate the migration of thermal energy in soil mass, poses challenge to the geoenvironmental engineers while dealing with various thermo-active structures. In this context, several numerical approaches have been attempted to solve the heat transfer equation (HTE) for conduction to predict the thermal regime. However, most of them need accurate boundary condition defined and involve complicated numerical approach which is inconvenient for the practising engineers. Hence, an attempt has been made in the present study to develop a simplified, but numerically efficient, approach based on the finite difference method (FDM) to analyse one dimensional heat transfer in dry sands when the end boundary is not defined. Furthermore, a time dependent initial boundary condition has been applied to this model to simulate similar experimental condition and results have been compared vis-à-vis those obtained from the experiment and COMSOL Multiphysics ® to validate the proposed approach.

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Section: Statement Of the Problemmentioning

confidence: 99%

A finite difference model for undefined end boundary to analyse the heat transfer in dry sands

Mondal

Singh

Tang³

et al. 2020

International Journal of Geotechnical Engineering

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“…29 The diffusion cell for the a intact rock sample and b fractured rock sample Fig. 30 The diffusion cell for accelerated tests on intact rock samples plate method, calorimetric, gradient and combination, guarded hot plate, divided bar apparatus, cylindrical configuration, in situ sphere, heat meter, thermal cell, thermal probe method [112], are worth appreciating. The MEMS (microelectro-mechanical system)-based thermal sensor and differential scanning calorimeter, which are applied to sense the thermal response (say thermal properties) of the soil mass, viz., thermal conductivity, resistivity, diffusivity and volumetric heat capacity, are also being used.…”

Section: Monitoring and Simulation Of Heat Migrationmentioning

confidence: 99%

Novel Techniques to Simulate and Monitor Contaminant–Geomaterial Interactions

Singh

2019

Indian Geotech J

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Generation of huge amount of the toxic and hazardous wastes coming out of various industrial and domestic activities is becoming a major threat to the society. In the long run, mainly because of nonscientific storage, disposal and closure, and due to the presence of undesirable concentration(s) of chemicals and radionuclides, elevated temperatures and microbial activity, these wastes (read contaminants) interact with geomaterials, viz., soils, rock mass, groundwater. This interaction, termed as contaminant-geomaterial interaction, depending upon the severity of the contaminant(s) and interaction time, might alter overall characteristics of the geomaterials. Unfortunately, conventional laboratory and field instrumentation techniques are not well equipped to capture such interaction(s) and the mechanisms that prevail in the geomaterials. Hence, to achieve these objectives, evolving adequate and workable strategies, and modalities, that are nondestructive, noninvasive and economical is desirable. In this context, author's association with several industries resulted in development of innovative, cost-effective, yet efficient techniques that facilitate laboratory and/or in situ simulation and monitoring of such interaction(s). Details of these techniques, the philosophy behind their creation and the way they can be employed for safeguarding geoenvironment, from deterioration, are presented and discussed in this paper. Also, a brief discussion on some of the real-life situations where such techniques can be applied easily, by suitably modifying them, is presented for the benefit of the aspiring researchers and professionals.

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Editorial

Ravindra

2018

Emerging Materials Research

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Detection of thermal response of geomaterials: a critical appraisal

Cited by 3 publications

References 83 publications

A finite difference model for undefined end boundary to analyse the heat transfer in dry sands

A finite difference model for undefined end boundary to analyse the heat transfer in dry sands

Novel Techniques to Simulate and Monitor Contaminant–Geomaterial Interactions

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