THE DEVELOPMENT OF THE HYBRID VAPORIZATION AND POWER GENERATION SYSTEM FOR THE GAS TURBINE USING LNG COLD

摘要

We have been developing a hybrid LNG vaporization and power generation system which generates approximately -100℃ air and natural gas fuel of a steady heating value since March 2004. In this study, three types of intake-cooling process for the Gas Turbine Combined Cycle (GTCC) ranging from several MW to several hundred MW are reviewed. 1. Cold air is directly introduced as gas turbine intake air and cooled down to approximately 10℃. 2. Cold air is compressed to about 5 bars and injected into the middle stage of the compressor as an inter-cool medium. 3. Cold air is compressed, recuperated and injected into the combustor as a power augmentation medium. In this paper, we describe an outline of the test equipment, configurations of the hybrid vaporization and power generation system for the gas turbine and discuss the possibilities based on exergy analysis for the above three cases.