Calculating soil thermal properties for the purpose of numerical simulation of heat transfer in multi-layered ground profile

• Autorzy: Kozłowski T. , Kolankowska M. , Walaszczyk Ł.

Warianty tytułu

PL

Obliczanie termicznych właściwości gruntu na potrzeby numerycznej symulacji przepływu ciepła w wielowarstwowym profilu podłoża gruntowego

• Języki publikacji: EN PL

Abstrakty

EN

An example of simulation made by use of a program based on a one-dimensional heat transfer model is presented. Some detailed values and solutions related to soil thermal properties are given, among them, particularly, the freezing point Tf and the unfrozen water content function u(T) are discussed. The results of computation done for multilayered ground profile suggest the occurrence of the “real” depth of frost, as opposed to “conventional” depth of frost, identified with the depth of the zero isotherm.

Słowa kluczowe

EN

heat transfer; soil; phase changes; soil freezing point; unfrozen water content

PL

wymiana ciepła; grunt; zmiany fazowe; temperatura zamarzania gruntu; zawartość wody niezamarzającej

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Structure and Environment
• Rocznik: 2015
• Tom: Vol. 7, no. 2
• Strony: 87--94
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr., wzory

Twórcy

autor

Kozłowski T.

• Kielce University of Technology

autor

Kolankowska M.

• Kielce University of Technology

autor

Walaszczyk Ł.

• Kielce University of Technology

Bibliografia

• [1] Kozlowski T., Kolankowska M, Walaszczyk Ł.: A finite difference scheme to solve one-dimensional problems associated with soil freezing and thawing, ”Structure and Environment”, 1 (2015).
• [2] Kozlowski T.: Soil freezing point as obtained on melting, ”Cold Regions Science & Technology”, 38(2-3) (2004), pp. 93-101.
• [3] Anderson D.M., Tice A.R.: Low temperature phases of interfacial water in clay-water systems, Soil Sci. Soc. Am. Proc., 35 (1) (1971), pp. 47-54.
• [4] Low P.F., Anderson D.M., Hoekstra P.: Some thermodynamic relationships for soils at or below the freezing point; 1: Freezing point depression and heat capacity, Water Resour. Res., 4 (1968), pp. 379-394.
• [5] Kozlowski T.: A semi-empirical model for phase composition of water in clay-water systems, Cold ”Regions Science and Technology”, 49 (2007), pp. 226-236.
• [6] Stępkowska E.T.: Simple method of crystal phase water, specific surface and clay mineral content estimation in natural clays, Studia Geotechnica, IV 2 (1973), pp. 21-36.
• [7] Farouki O.T.: Thermal Properties of Soils, Trans Tech Publications, Clausthal-Zellerfeld, 1986.
• [8] Fukuda M., Jingsheng Z.: Hydraulic conductivity measurements of partially frozen soil by needle probe method in: Frost in Geotechnical Engineering, VTT Symposium 94, Espoo, 1989, pp. 251-266.
• [9] Dorsey N.E.: Properties of Ordinary Water Substance, Rein. Pub. Corp., New York, 1940.
• [10] Ochsner T.E., Horton R., Ren T.: A new perspective on soil thermal properties, Soil Sci Soc. Am. J., 65 (2001), pp. 1641-1647.
• [11] Kozlowski T.: Influence of the total water content on the unfrozen water content below 0°C in model soils, ”Archives of Hydro-engineering and Environmental Mechanics”, XLII 3-4 (1995), pp. 51-70.