Research on Optimization and Verification of the Number of Stator Blades of kW Ammonia Working Medium Radial Flow Turbine in Ocean Thermal Energy Conversion

Ocean Thermal Energy Conversion (OTEC) is one of the emerging industries ocean energy and an important link in carbon neutrality. Turbine a key component thermal conversion, which has impact on performance conversion efficiency system. This paper fully considers application characteristics state ammonia working fluid. Taking 100 kW radial inflow turbine OTEC system as example, based design, optimized for parameters stator influence different geometric analyzed. Subsequently, optimization results are verified by CFD numerical simulation analysis under conditions. The show that number blades turbine. Further studies have shown through optimization, when 33, internal flow field best, conditions inlet outlet fluids accordance with design points without obvious shock wave reverse phenomenon, 89.46%, 3.94% higher than value.