tailieunhanh - Advanced Gas Turbine Cycles phần 1

LMS100 General Electric, kết hợp khung hạng nặng và aeroderivative công nghệ, tuabin khí sản xuất hiện đại đầu tiên hệ thống sử dụng công nghệ làm mát động cơ phát triển đặc biệt cho ngành công nghiệp điện. Làm mát bên ngoài làm giảm nhiệt độ không khí hút vào máy nén áp suất cao, | Diploma Thesis Advanced Gas Turbine Cycles Thermodynamic Study on the Concept of Intercooled Compression Process. Magdalena Milancej WIEN Technische UniversitAt Wien Vienna University of Technology PoLITECHNIKA L0DZKA Diploma Thesis Advanced Gas Turbine Cycles Thermodynamic Study on the Concept of Intercooled Compression Process. Written at Institut fur Thermodynamik und Energiewandlung Technische Universitat Wien Institute of Turbomachinery International Faculty of Engineering Technical University of Lodz Under direction of . . . Franz WINGELHOFER . . . Reinhard WILLINGER Dr hab. inz. Wladyslaw KRYLLOWICZ By Magdalena Milancej Vienna July 2005 I Abstract The General Electric s LMS100 which combines heavy-duty frame and aeroderivative technology is a first modern production gas turbine system employing off-engine intercooling technology developed especially for the power generation industry. The external intercooler lowers air inlet temperature to the high-pressure compressor causing its smaller power consumption and lower output temperature which enables more effective cooling of the hot turbine parts. In the end it results in higher thermal efficiency which is said to reach 46 . In the beginning of this diploma thesis the thermodynamic cycle of a gas turbine its parameters and improvement possibility are presented. A description of the LMS100 and its features follows later. Subsequently an analytical study is done to investigate the efficiency improvement by intercooling. The analytical formulae for dimensionless specific work and efficiency are derived and analysed. Next the LMS100 is modelled by means of the commercial plant performance software GateCycle. The obtained results are presented and .