京都大学 / 0048 / 新制・課程博士 / 博士(工学) / 甲第19291号 / 工博第4088号 / 新制||工||1630(附属図書館) / 32293 / 京都大学大学院工学研究科都市社会工学専攻 / (主査)教授 小林 潔司, 教授 大津 宏康, 准教授 松島 格也 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM

Orientador: Takaaki Ohishi / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação / Made available in DSpace on 2018-08-07T05:54:02Z (GMT). No. of bitstreams: 1 Mello_OdersonDiasde_D.pdf: 1392271 bytes, checksum: 4a25b0e50f13f9b1cc3f51c1bbf51592 (MD5) Previous issue date: 2006 / Resumo: Esta tese apresenta um modelo de despacho para usinas termelétricas a gás natural considerando a produção e o transporte de gás. O modelo proposto associa a operação do sistema de geração termelétrica com a operação da rede de gasodutos. A metodologia utilizada para obter a solução foi aplicada a um exemplo com seis usinas termelétricas supridas por uma rede de gás natural. O modelo apresentado integra eficientemente a operação das usinas termelétricas com a operação do sistema de gasodutos / Abstract: This thesis presents a dispatch model for natural gas power plants considering the production and transmission of gas. The proposed model put together the operation of the power plant system with the operation of the natural gas pipeline network. The proposed approach was applied to an example of six power plants supplied by a gas system. The proposed approach integrates the operation of power plants with the operation of natural gas transmission system / Doutorado / Energia Eletrica / Doutor em Engenharia Elétrica

A Pipeline Analytical Program and Dredging Knowledge{Base Expert{System (DKBES) determines a pipeline dredge's production and resulting cost and schedule. Pipeline dredge engineering presents a complex and dynamic process necessary to maintain navigable waterways. Dredge engineers use pipeline engineering and slurry transport principles to determine the production rate of a pipeline dredge system. Engineers then use cost engineering factors to determine the expense of the dredge project. Previous work in engineering incorporated an object{oriented expert{system to determine cost and scheduling of mid{rise building construction where data objects represent the fundamental elements of the construction process within the program execution. A previously developed dredge cost estimating spreadsheet program which uses hydraulic engineering and slurry transport principles determines the performance metrics of a dredge pump and pipeline system. This study focuses on combining hydraulic analysis with the functionality of an expert{system to determine the performance metrics of a dredge pump and pipeline system and its resulting schedule. Field data from the U.S. Army Corps of Engineers pipeline dredge, Goetz, and several contract daily dredge reports show how accurately the DKBES can predict pipeline dredge production. Real{time dredge instrumentation data from the Goetz compares the accuracy of the Pipeline Analytical Program to actual dredge operation. Comparison of the Pipeline Analytical Program to pipeline daily dredge reports shows how accurately the Pipeline Analytical Program can predict a dredge project's schedule over several months. Both of these comparisons determine the accuracy and validity of the Pipeline Analytical Program and DKBES as they calculate the performance metrics of the pipeline dredge project. The results of the study determined that the Pipeline Analytical Program compared closely to the Goetz eld data where only pump and pipeline hydraulics a ected the dredge production. Results from the dredge projects determined the Pipeline Analytical Program underestimated actual long{term dredge production. Study results identi ed key similarities and di erences between the DKBES and spreadsheet program in terms of cost and scheduling. The study then draws conclusions based on these ndings and o ers recommendations for further use.