Spatial temperature control system for reproducing typical operating conditions of turbine rotor systems

Reproducing typical temperature conditions of turbine rotor systems is essential for structural optimization, cooling system design, and thermal performance evaluation. However, existing experimental methods are limited by incomplete operating conditions, nonuniform temperature distributions, and slow dynamic responses. Herein, an annular multiple zones quartz lamp heating platform is designed to reproduce typical turbine rotor operating conditions. Specifically, a circumferential quartz lamp heating structure combined with a rapid multichannel zoned control strategy is developed. A strongly coupled temperature model is established, and system parameters are identified using the least squares method. Precise temperature regulation is achieved using a proportional-integral-derivative controller with anti-windup and decoupling compensation. Experiments under steady state, cold start, hot start, and shutdown conditions demonstrate that the proposed platform provides reliable thermal conditions for thermomechanical coupling tests.