Abstract:A 3D coupled mathematical model of 1 000 MW ultra-supercritical tower boiler was established. Based on the design parameters of the boiler, the model calculated the flow and heat transfer process of the boiler in operation. The model was used to simulate different load conditions of the supercritical boiler. The boiler maximum continuous rating (BMCR) condition, 75% BMCR condition and 50% BMCR condition were selected to explore the heat transfer during peak shaving operation. By analyzing the temperature and heat flux distribution in the furnace and the temperature distribution in the tube and on the water cooled wall, it is found that the temperature and heat flux change of the BMCR, 75% BMCR are in the similar trend while the temperature change of the 50% BMCR is irregular, and the heat transfer deterioration is prone to occur in the spiral water cooled wall region.
标题：1 000 MW燃煤机组不同负荷锅炉传热特性
title:Heat Transfer in Furnace of 1 000 MW Coal-fired Unit Under Different Load Conditions
