Abstract
WE-NET, a part of "New Sunshine Project", which is a Japanese goveuunent sponsored program through New Energy and Industrial Technology Developrnent Organization (NEDO) aimed at solving energy and environmental problems in the world. "Hydrogen Combustioh Turbine", which is a subtask of WE-NET has been investigated under contracts with Japan Power Engineering and Inspection Corporation (JAPEIC) and Central Research Institute of Electric Power Industry (CRIEPI) for 4 years from 1993. Mitsubishi Heavy Industries, Ltd. has proposed a hydrogen combustion turbine which is the Closed Circuit Cooled Topping Recuperation Cycle (CCCTR cycle). The thermal efficiency of this cycle reaches more 60% HHV (Higher Heat Value) with a power capacity of 500MW. This cycle is formed by a compressor, turbines, a combustor and heat exchangers. The combustor burns hydrogen/oxygen to make high temperature(1700℃) steam. This paper presents the comparisons of the thermal efficiency and the system configurations of the CCCTR cycle and other cycles.
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