Study on Micro-disk Gas Turbine System for Future Thermal Energy Utilization Facilities

摘要

On the recent work, it has been selected a model of micro-disk gas turbine cycle or micro-ceramic Shinla gas turbine cycle as part of high temperature nuclear reactor system which has good potential for the application to electricity generation device. Study is carried out using hydrogen as fuel which produced by nuclear reactor system. Within the micro combustion chamber, this hydrogen will be burned by preheated air to maintain high thermal performance. After leaving micro combustor, those hot gases were flowed through the micro-disk gas turbine that be mounted by micro compressor on the same shaft. Furthermore, exhaust gases were transferred to a ceramic heat exchanger to preheat compressed air before entering the micro combustor. The model configuration was investigated on operating conditions at a compression pressure ratio of 2.5 and a micro-disk gas turbine inlet temperature of approximately 1150 K, it would result in a CER as high as about 65 percent and it had achieved a significant reduction in hydrogen consumption up to approximately 38 percent. In closing, this micro-disk gas turbine system could be coupled to Shinla turbine system with solar collector which offer good potential for higher thermal CER, and will be very promising for the future facilities.