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Coal Type Selection for Thermal Power Plants through Combustion State Estimation
Satoru GOTO,Shinji KATAFUCHI,Mitsuhiro SUEYOSHI,Toshihiko FURUE,Yoshitaka UCHIDA,Hironori HATAZAKI,Masatoshi NAKAMURA 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
In this paper, a coal type selection method for a coal fired boiler in a thermal power station is proposed. Combustion of coal and fusibility of fly ash are evaluated by using coal and fly ash properties. Combustion state in a coalfired boiler is estimated by the evaluated combustibility of coal and fusibility of fly ash. Applicable coal type is selected by the estimated combustion state. The proposed coal type selection method is evaluated by the data collected in an actual thermal power plant.
Kazuhiko Goto,Takenao Sugi,Yoshitaka Matsuda,Satoru Goto,Hiroki Fukuda,Yoshinobu Goto,Takao Yamasaki,Shozo Tobimatsu 제어로봇시스템학회 2013 제어로봇시스템학회 국제학술대회 논문집 Vol.2013 No.10
Visual evoked potentials (VEPs) are the electrical responses from the brain concerned with visual information processing. Amplitude of VEPs is smaller than that of background EEG activity, and the stimulus-locked averaging method is usually used for obtained the waveform. VEP response to each stimulus is not completely the same however it is varying with its amplitude and duration. Therefore, amplitude of averaged VEP waveform deteriorates due to their variability in raw data. Feature extraction of background EEG activity during visual stimulation is also a one of significant items in VEP analysis. In that case, separation of VEP component and background EEG component (mainly posterior dominant rhythm) is crucial. In the past, we proposed the method of estimating both amplitude of VEP and dominant rhythm by use of EEG model. This present study, the proposed method was applied to actual recorded VEP data and its effectiveness was evaluated. EEGs with visual stimulus were recorded from nine healthy young adults. Usefulness of the proposed method was investigated by comparing the conventional power spectrum averaging method. The proposed method will be applicable to show an accurate VEP analysis and characteristic analysis of background activity under visual stimulus.
Simulation Model of Integrated OTEC and Desalination Plant and Its Application
Syo Nakamura,Satoru Goto,Takenao Sugi,Yusuke Ikegami,Masatoshi Nakamura 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Water and energy are indispensable for human life. Fossil fuels such as oil and coal are usually used for power generation. However, the environment impact of these thermal power generatio is releatively large. Moreover, the shortage of water caused by a population increaase and global warming also becoames serial problem. In dorder to solve these energy and water problems at the ame time, an integrated plant of ocean thermal energy conversion (OTEC) system and desalination system has been developed. In this research, a simulation model of the integrated OTEC and desalination plant was consturcted.