Thermophysical properties of dunite rocks as a function of temperature along with the prediction of effective thermal conductivity

ABSTRACT

The thermal conductivity, thermal diffusivity and heat capacity per unit volume of dunite rocks taken from Chillas near Gilgit, Pakistan have been measured simultaneously using transient plane source technique. The temperature dependence of thermal transport properties is studied in the temperature range 83-303 K. Different relations for the estimation of thermal conductivity are also tested. Thermal conductivity data obey the modified Eucken’s law in the temperature range of measurements.

The thermal conductivity, thermal diffusivity and heat capacity per unit volume of dunite rocks taken from Chillas near Gilgit, Pakistan have been measured simultaneously using transient plane source technique. The temperature dependence of thermal transport properties is studied in the temperature range 83-303 K. Different relations for the estimation of thermal conductivity are also tested. Thermal conductivity data obey the modified Eucken’s law in the temperature range of measurements.

Cite this paper

Zeb, A. , Firdous, T. and Maqsood, A. (2010) Thermophysical properties of dunite rocks as a function of temperature along with the prediction of effective thermal conductivity.*Natural Science*, **2**, 626-630. doi: 10.4236/ns.2010.26077.

Zeb, A. , Firdous, T. and Maqsood, A. (2010) Thermophysical properties of dunite rocks as a function of temperature along with the prediction of effective thermal conductivity.

References

[1] Cengel, Y.A. and Turner, R.H. (2001) Fundamentals of thermal-fluid sciences. McGraw-Hill, Boston, 609.

[2] Rzhevsky, V. and Novik, G. (1971) The physics of rocks. Mir Publishers, Moscow.

[3] Aurangzeb, Mehmood, S. and Maqsood, A. (2008) Modeling of effective thermal conductivity of dunite rocks as a function of temperature. International Journal of Thermophysics, 29(4), 1470-1479.

[4] Gustafsson, S.E. (1991) Transient plane source techniques for thermal conductivity and thermal diffusivity measurements of solid materials. Review of Scientific Instruments, 62(3), 797-804.

[5] Aurangzeb, Ali, Z., Gurmani, S.F. and Maqsood, A. (2006) Simultaneous measurement of thermal conductivity, thermal diffusivity and prediction of effective thermal conductivity of porous consolidated igneous rocks at room temperature. Journal of Physics D: Applied Physics, 39(17), 3876-3881.

[6] Aurangzeb, Khan, L.A. and Maqsood, A. (2007) Prediction of effective thermal conductivity of porous consolidated media as a function of temperature: A test case of limestones. Journal of Physics D: Applied Physics, 40(16), 4953-4958.

[7] Maqsood, M., Arshad, M., Zafarullah, M. and Maqsood, A. (1996) Low-temperature thermal conductivity measurement apparatus: Design assembly, caliberation and measurement on (Y123, Bi2223) superconductors. Superconductor Science and Technology, 9(4), 321-326.

[8] Maqsood, A. and Rehman, M.A. (2003) Measurement of thermal transport properties with an improved transient plane source technique. International Journal of Thermophysics, 24(3), 867-883.

[9] Maqsood, A., Rehman, M.A., Gumen, V. and Haq, A. (2000) Thermal conductivity of ceramic fibres as a function of temperature and press load. Journal of Physics D: Applied Physics, 33(16), 2057-2063.

[10] Schatz, J.F. and Simmons, G. (1972) Thermal conductivity of earth materials at high temperatures. Journal of Geophysical Research, 77(35), 6966-6983.

[11] Ziman, J.M. (1960) Electrons and phonons. Oxford University Press, London.

[12] Vijaya, M.S. and Rangarajan, G. (2004) Materials science. McGraw-Hill, New Delhi, 207.

[13] Kukkonen, I.T., Jokinen, J. and Seipold, U. (1999) Temperature and pressure dependencies of thermal transport properties of rocks: Implications for uncertainties in lithosphere models and new laboratory measurements of high-grade rocks in the Central Fennoscandian Shield. Surveys in Geophysics, 20(1), 33-59.

[14] Jokinen, J. (2000) Uncertainty analysis and inversion of geothermal conductive models using random simulation methods. Oulu University, Oulu.

[15] Somerton, W.H. (1992) Thermal properties and temperature related behaviour of rock/fluid systems. Elsevier, New York.

[1] Cengel, Y.A. and Turner, R.H. (2001) Fundamentals of thermal-fluid sciences. McGraw-Hill, Boston, 609.

[2] Rzhevsky, V. and Novik, G. (1971) The physics of rocks. Mir Publishers, Moscow.

[3] Aurangzeb, Mehmood, S. and Maqsood, A. (2008) Modeling of effective thermal conductivity of dunite rocks as a function of temperature. International Journal of Thermophysics, 29(4), 1470-1479.

[4] Gustafsson, S.E. (1991) Transient plane source techniques for thermal conductivity and thermal diffusivity measurements of solid materials. Review of Scientific Instruments, 62(3), 797-804.

[5] Aurangzeb, Ali, Z., Gurmani, S.F. and Maqsood, A. (2006) Simultaneous measurement of thermal conductivity, thermal diffusivity and prediction of effective thermal conductivity of porous consolidated igneous rocks at room temperature. Journal of Physics D: Applied Physics, 39(17), 3876-3881.

[6] Aurangzeb, Khan, L.A. and Maqsood, A. (2007) Prediction of effective thermal conductivity of porous consolidated media as a function of temperature: A test case of limestones. Journal of Physics D: Applied Physics, 40(16), 4953-4958.

[7] Maqsood, M., Arshad, M., Zafarullah, M. and Maqsood, A. (1996) Low-temperature thermal conductivity measurement apparatus: Design assembly, caliberation and measurement on (Y123, Bi2223) superconductors. Superconductor Science and Technology, 9(4), 321-326.

[8] Maqsood, A. and Rehman, M.A. (2003) Measurement of thermal transport properties with an improved transient plane source technique. International Journal of Thermophysics, 24(3), 867-883.

[9] Maqsood, A., Rehman, M.A., Gumen, V. and Haq, A. (2000) Thermal conductivity of ceramic fibres as a function of temperature and press load. Journal of Physics D: Applied Physics, 33(16), 2057-2063.

[10] Schatz, J.F. and Simmons, G. (1972) Thermal conductivity of earth materials at high temperatures. Journal of Geophysical Research, 77(35), 6966-6983.

[11] Ziman, J.M. (1960) Electrons and phonons. Oxford University Press, London.

[12] Vijaya, M.S. and Rangarajan, G. (2004) Materials science. McGraw-Hill, New Delhi, 207.

[13] Kukkonen, I.T., Jokinen, J. and Seipold, U. (1999) Temperature and pressure dependencies of thermal transport properties of rocks: Implications for uncertainties in lithosphere models and new laboratory measurements of high-grade rocks in the Central Fennoscandian Shield. Surveys in Geophysics, 20(1), 33-59.

[14] Jokinen, J. (2000) Uncertainty analysis and inversion of geothermal conductive models using random simulation methods. Oulu University, Oulu.

[15] Somerton, W.H. (1992) Thermal properties and temperature related behaviour of rock/fluid systems. Elsevier, New York.