DYNAMIC THERMAL RESPONSE SIMULATING RESEARCH OF CONCRETE CORE COOLING SYSTEM UNDER SUPPLY WATER TEMPERATURE STEP CHANGE

摘要

The main thrust of this paper is to research the heat storage effect of concrete slab that delays the reaction of cooling supply of concrete core cooling system (CCCS). The thermal response of the CCCS under the condition of supply water temperature step change was investigated by using the Star-type RC unsteady heat transfer model which was modified by Tianjin University. The results indicate that capillary cooling system reacts much faster than slab cooling one, and the thermal retardation time is around 1 hour and 4 hours respectively.