3. Case Study A subcritical 300 MW tangentially fired boiler, the type of which is SG-1025/17.50-M749, is applied for the case study. The intricate boiler structure can be seen from Figure 2. The main design parameters of the boiler under BMCR, 75% THA (turbine heat acceptance), 50% THA, and 30% THA are shown in Table 1. The design parameters are adopted under (BMCR), with the main steam output of 1025 t h−1, and the outlet temperatures of both superheated steam and reheated steam of 540 °C.
