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This report is the succession of our previous report described the details of the observation of heat balance on ground surfaces with five kinds of covering materials. Thermal conductivity and volumet...ric specific heat of the soil are measured varying the volumetric water content. Thermal performance simulations of ground surface and underground use these values to calculate temperatures and heat flux. Two types of simulation model are compared and examined. One simulates the thermal performance coupling heat conduction and moisture movement (Model A). The other neglects the moisture movement (Model B). Simulation results are compared with measured values. The comparison shows Model A is slightly more accurate than Model B. However, Model B is approximate enough to predict the earth temperatures.続きを見る
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