Supercritical carbon dioxide cycles for power generation: A review

Effects of technical progress on performance and application of supercritical carbon dioxide power cycle: A review

Thermodynamic analysis of a supercritical/transcritical CO2 based waste heat recovery cycle for shipboard power and cooling applications

Supercritical CO2 power cycles for waste heat recovery: A systematic comparison between traditional and novel layouts with dual expansion

Thermodynamic analysis and optimization of a gas turbine and cascade CO2 combined cycle

System optimisation and performance analysis of CO2 transcritical power cycle for waste heat recovery

In this paper, tensile stress distribution in the surface of high-parameter steam turbine blade anti-erosion boride coatings under single particle impact was investigated using a nonlinear finite element software ABAQUS/explicit based on the actual erosion environment in power units. The results showed that the single Fe2B phase coating hardly had stable anti-erosion capability when the coating thickness was less than 20 μm under the continuous impacts. For the bilayer boride coating composed of top phase FeB and bottom phase Fe2B, the whole coating began to show the stable anti-erosion performance with top FeB phase coating thickness of 120 μm from the standpoint of maximum surface tensile stress reduction. Anti-erosion performance of single Fe2B phase boride coating was 23.15% higher than the bilayer boride coating. Besides, the optimum parameters configurations for boride coatings were studied.

Study on the erosion characteristics of boride coatings by finite element analysis

The influence of nozzle chamber structure and partial-arc admission on the erosion characteristics of solid particles in the control stage of a supercritical steam turbine

In this paper, high temperature erosion tests are performed on four typical anti-erosion coatings for high-parameter steam turbine blades using pneumatic accelerated erosion method to simulate the ...

Experimental investigation on erosion resistance of iron boride coatings for steam turbines at high temperatures

Combining an improved particle image velocimetry technique with a far-field microscope, a high-resolution quantitative measurement of the transient secondary flow field in an annular turbine cascade is conducted through moving the laser light sheet to follow the primary flow. The measuring results revealed the transient behavior and strong unsteadiness of the secondary flow in a cascade for the first time. It is confirmed that the suction side leg of the horseshoe vortex rotates around the passage vortex along the rotating direction of passage vortex. In the secondary flow of cascade, the formation, development and decay of Hopf bifurcations caused by the competition between the tensile deformation and the dissipation, have become a major behavior of vortex evolution. Driven by the interaction between the passage vortex and the suction side leg of the horseshoe vortex as well as the transverse pressure gradient, the passage vortex was pushed to the suction surface and ultimately formed the wall vortex. Fu...

Juan Di

Papers

System optimisation and performance analysis of CO2 transcritical power cycle for waste heat recovery

Study on the erosion characteristics of boride coatings by finite element analysis

The influence of nozzle chamber structure and partial-arc admission on the erosion characteristics of solid particles in the control stage of a supercritical steam turbine

Experimental investigation on erosion resistance of iron boride coatings for steam turbines at high temperatures

High-resolution measurement and analysis of the transient secondary flow field in a turbine cascade: