The Calculation and Study of Pipe Operation of Low-Pressure Circuit of Heat Recovery Steam Generators

The article presents the experience of using modern software in the implementation of thermal calculations. The integral characteristics of the high-pressurized heat recovery steam generator and the common 3-pressure heat recovery steam generator for high-capacity combined cycle gas turbine are determined and compared. The comparison shows that the increased pressure leads to an intensification of heat transfer, which is shown in the increase in the heat transfer coefficient. In addition, the problems of reliability of heat recovery steam generator, in particular problems related to flow-accelerated corrosion in pipes, are considered.