... Abstract To unlock the potential of sCO 2 power cycles, technology readiness must be demonstrated on the scale of 10–600 MWe and at the sCO 2 temperatures and pressures of 350–700 °C and 20–35 MPa for nuclear industries. The lack of suitable shaft seals in sCO 2 operating conditions is one...

... Abstract Supercritical carbon dioxide (SCO 2 ) leakage has been one of the major issues in sCO 2 power cycles, penalizing the cycle efficiencies. The effect of the seal leakage on the cycle efficiency could be as high as 0.65% for a utility sCO 2 power cycle. Therefore, there is a pressing...

... such as fans, compressors, combustors, and turbines, as well as the sub-systems including engine seals. Advanced engine seals show significant promise for improving the engine pressure ratio and cycle temperatures, which result in lower engine weight, stronger thrust, and higher fuel efficiency. We propose...

... Abstract This paper deals with numerical studies of a novel Elasto-Hydrodynamic Seal (EHD), which has been developed for supercritical CO 2 (sCO 2 ) turbomachinery applications. Current sCO 2 turbomachinery suffer from high leakage rates, which is creating a major roadblock for the full...

... Proceedings of the ASME 2021 Power Conference POWER2021 July 20-22, 2021, Virtual, Online POWER2021-64536 AN INNOVATIVE ELASTO-HYDRODYNAMIC SEAL CONCEPT FOR SUPERCRITICAL CO2 POWER CYCLES Sevki Cesmeci1, Rubayet Hassan1, Mohammad Fuad Hassan1, Ikenna Ejiogu1, Matthew DeMond 1, Hanping Xu2...

... 09 03 2012 Steam seal is an important part in steam turbine, the leakage performance of seal has a significant impact on turbine efficiency. Research of seal is greatly emphasized with the development of design and manufacture technology, more professionals committed to the research...