A coupling method of direct and inverse heat conduction problem for transient temperature calculation of the supercharged boiler drum

作者：Sun, Enhui^*; Li, Bin; Shi, Liangxiao; Chen, Feng

来源：Journal of Thermal Science and Technology, 2016, 11(2): 16-318.

DOI：10.1299/jtst.2016jtst0030

• Supercharged boiler
• Drum
• Coupling method
• Inverse method
• Temperature field

The supercharged boiler drum is partly surrounded by the furnace flue gas and hot air, and it's difficult to precisely determine the temperature field from the direct method. This paper presents the coupling method of direct and inverse heat conduction problem to calculate the transient temperature field of the drum. To reduce the influence of boundary condition, the drum is divided into two regions and the temperature fields are respectively determined from the direct and inverse method according to heating condition of the outer wall. For the junction of the two regions, the temperature determined from the inverse method is assigned to the direct method. Then the coupling method is realized, the whole temperature field of drum is obtained. The proposed method is validated through experimental data and the result simulated by ANSYS, during a cold startup process. The comparison of results shows high accuracy of the coupling method and strong adaptability of complex boundary condition.

• 出版日期2016
• 单位华北电力大学; 华北电力大学（保定）