Influence of Liquid Water on the Heat Exchange of Control Layer of Cooling Roadbed
Based on thermodynamics theory and porous medium theory, the migration regularity of liquid water in the control layer of cooling roadbed is analyzed, and the influence of liquid water on the heat exchange between the control layer and the external environment is discussed. On the basis of the research results, the minimum thickness expression for the control layer is established, by which the liquid water could migrate and exchange heat in the control layer. The results indicate that within the regular thickness scope of design, the influence of water on the heat exchange between the control layer and the external environment could be neglected. The results can provide reference to the design and research for the control layer of cooling roadbed in cold regions.
Chaohe Chen, Yong Huang and Guangfan Li
M. K. Huang "Influence of Liquid Water on the Heat Exchange of Control Layer of Cooling Roadbed", Advanced Materials Research, Vols. 243-249, pp. 2934-2937, 2011