Computer Simulation of the Dewatering of Refractory Concretes Walls

摘要

A computational model used to explain the thermal performance of construction concretes ~(1,2)) has been updated to simulate the dewatering of refractory concrete walls. The results obtained indicate that the heat transfer through the wall is mainly due to a conduction mechanism, there is a sharp moving drying front (which is not an assumption of the initial conditions), and that the most important materials property is permeability. The high pore pressure developed inside the refractory wall is linked to the moving drying front. Moisture clogging is observed which might require modification of the model to include the movement of liquid water. The accuracy of the modeling is highly dependent upon using the correct input property data, such as permeability, thermal conductivity, porosity, dehydration characteristics, and heat and mass transfer coefficients.