Advertisement

Hydro-Thermal Properties of the Unsaturated Soil

Conference paper
  • 255 Downloads
Part of the Sustainable Civil Infrastructures book series (SUCI)

Abstract

In this paper, 10 approaches were initially used to predict the thermal conductivity (k) of different soils. The comparison showed that three principal parameters indicating sand content (xs), dry density (ρdry), and degree of saturation (Sr) influenced highly the soil thermal conductivity. Moreover, 3 approaches for the volumetric heat capacity (Cv) of soil were used to predict the experimental data from the literature. The result showed that the classical approaches can induce the errors because of the non-consideration of the mineral and water content. This insufficiency was solved by proposing a new model. Finally, the most compatible approaches for the thermal properties were implemented into a 2D subsurface model using finite element method (FEM). The variation of suction (s), thermal conductivity (k) and temperature (T) with time and space was then investigated in the numerical simulation model under the influence of seasonal suction and temperature on the top boundary.

Keywords

Soil Volumetric Heat Capacity Sand Content Thermal Response Test (TRT) Residual Volumetric Water Content Hydrothermal Transfer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work is supported by the China Scholarship Council (CSC).

References

  1. Abu-Hamdeh, N.H.: Measurement of the thermal conductivity of sandy loam and clay loam soils using single and dual probes. J. Agric. Eng. Res. 80(2), 209–216 (2001)CrossRefGoogle Scholar
  2. Abu-Hamdeh, N.H., Reeder, R.C.: Soil thermal conductivity: effects of density, moisture, salt concentration, and organic matter. Soil Sci. Soc. Am. J. 64, 1285–1290 (2000)CrossRefGoogle Scholar
  3. Alrtimi, A., Rouainia, M., Haigh, S.: Thermal conductivity of a sandy soil. Appl. Therm. Eng. 106, 551–560 (2016)CrossRefGoogle Scholar
  4. Ball, D.A., Fischer, R.D., Hodgett, D.L.: Design methods for ground-source heat pumps. ASHRAE Trans. 89(2B), 416–440 (1983)Google Scholar
  5. Balland, V., Arp, P.: Modelling soil thermal conductivities over a wide range of conditions. J. Environ. Eng. Sci. 4, 549–558 (2005)CrossRefGoogle Scholar
  6. Barry-Macaulay, D., Bouazza, A., Singh, R.M., Wang, B., Ranjith, P.G.: Thermal conductivity of soils and rocks from the Melbourne (Australia) region. Eng. Geol. 164, 131–138 (2013)CrossRefGoogle Scholar
  7. Chen, S.: Thermal conductivity of sands. Heat Mass Transf. 44(10), 1241–1246 (2008)CrossRefGoogle Scholar
  8. Coté, J., Konrad, J.M.: A generalized thermal conductivity model for soils and construction materials. Canad. Geotech. J. 42(2), 443–458 (2005)CrossRefGoogle Scholar
  9. de Vries, D.A.: Thermal properties of soil. In: van Wijk, W.R. (ed.) Physics of Plant Environment, pp. 210–235. New Holland, Amsterdam (1963)Google Scholar
  10. Forbes, J.D.: Account of some experiments on the temperature of the Earth at different depths, and in different soils, near Edinburgh. Trans. Roy. Soc. Edinb. 16, 189–236 (1849)CrossRefGoogle Scholar
  11. Haigh, S.K.: Thermal conductivity of sands. Geotechnique 62(7), 617–625 (2012)CrossRefGoogle Scholar
  12. Johansen, O.: Thermal conductivity of soils, PhD Thesis, Trondheim, Norway, ADA 044002 (1975)Google Scholar
  13. Kersten, M.: Thermal properties of soils. Eng. Exp. Stat. 52 (1949)Google Scholar
  14. Lu, S., Ren, T., Gong, Y., Horton, R.: An improved model for predicting soil thermal conductivity from water content at room temperature. Soil Sci. Soc. Am. J. 71(1), 8–14 (2007)CrossRefGoogle Scholar
  15. Mualem, Y.: A new model for predicting the hydraulic conductivity of unsaturated porous media. Water Resour. Res. 12(3), 513–522 (1976)CrossRefGoogle Scholar
  16. Nowamooz, H., Nikoosokhan, S., Jian Lin, B., Chazallon, C.: Finite difference modeling of heat distribution in multilayer soils with time-spatial hydrothermal properties. Renew. Energy 76, 7–15 (2015)CrossRefGoogle Scholar
  17. Richards, L.A.: Capillary conduction of liquids through porous mediums. J. Appl. Phys. 1, 318–333 (1931)Google Scholar
  18. Saito, T., Hamamoto, S., Mon, E.E., Takemura, T., Saito, H., Moldrup, T.K.P.: Thermal properties of boring core samples from the Kanto area, Japan: development of predictive models for thermal conductivity and diffusivity. Soils Found. 54(2), 116–125 (2014)CrossRefGoogle Scholar
  19. Sakashita, H., Kumada, T.: Heat transfer model for predicting thermal conductivity of highly compacted bentonite. J. Japan At. Soc. 40, 235–240 (1998)Google Scholar
  20. Tang, A.M., Cui, Y.-J., Le, T.T.: A study on the thermal conductivity of compacted bentonites. 41(3–4), 181–189 (2008)Google Scholar
  21. van Genuchten, M.T.: A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Sci. Soc. Am. J. 44, 892–898 (1980)CrossRefGoogle Scholar
  22. Yang, H., Cui, P., Fang, Z.: Vertical-borehole ground-coupled heat pumps: a review of models and systems. Appl. Energy 87, 16–27 (2010)CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.INSA de StrasbourgStrasbourg CedexFrance

Personalised recommendations