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The ocean thermal energy conversion (OTEC) system is one of the pro\u9762sing sol\u5410ions for providing a stable electricity s\u53e9ply and many other by-products. Using ammonia\/water mixture (AWM) as a working fluid results in performance improvement of the cycle under the same oper-ating conditions. Though the power generation system using AWM as working fluid has been put into practical use in the waste-heat power generation systems at high heat source temperatures, power\u5373neration using OTEC system at low heat source temperatures has not been verified thoroughly. Previous study has reported the dynamic characteristics and system model. How-ever, the spectrum characteristics analysis to develop models for dynamic and control systems of OTEC is not clear. It is necessary to develop models for dynamic and control systems of OTEC in order to control the system stability and to match the plant's outp\u5410with electricity demand. As it is of great importance for the design of the system, this paper reports on the spectrum characteristics of the OTEC system outputs. In this study, two weeks of steady operation was performed and the obtained data were analyzed. As a result, it is clarified that the warm water temperature and the working fluid temperature and pressure at the turbine inlet are related to positive correlation The cold water temperature and the working fluid temperature and pressure at the turbine outlet are related to positive correlation. Moreover, the working fluid pressure in the evaporator was found to affect the cold water temperature and flow rate more than the warm water temperature. These results are expected to be useful for the design of dynamic models of the OTEC system.<\/p>\n","protected":false},"excerpt":{"rendered":"
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