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  • 2015-2019  (8)
  • 1960-1964  (14)
  • 1920-1924
  • 1880-1889  (1)
  • Undetermined  (16)
  • Japanese  (7)
  • 1
    Publication Date: 2023-04-17
    Description: To attain the highest performance of energy supply systems, it is necessary to determine design specifications optimally in consideration of operational strategies corresponding to seasonal and hourly variations in energy demands. Mixed-integer linear programming (MILP) methods have been applied widely to such multi-period optimal design problems. A hierarchical MILP method has been proposed to solve the problems very efficiently. In addition, by utilizing features of the hierarchical MILP method, a method of reducing model by clustering periods has also been proposed to search design solution candidates efficiently in the relaxed optimal design problem at the upper level. In this paper, by utilizing features of the hierarchical MILP method, a method of clustering periods is proposed based on the optimal operational strategies of energy supply systems obtained by solving the relaxed optimal design problem. As a case study, the method is applied to the optimal design of a gas turbine cogeneration system, and it is clarified that the method is effective to enhance the computation efficiency in comparison with a conventional method of clustering periods regularly.
    Language: Japanese
    Type: article , doc-type:article
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  • 2
    Publication Date: 2023-04-17
    Description: Mixed-integer linear programming (MILP) methods have been applied widely to optimal design of energy supply systems. A hierarchical MILP method has been proposed to solve such optimal design problems efficiently. In addition, some strategies have been proposed to enhance the computation efficiency furthermore. As one of the strategies, a method of reducing model by time aggregation has been proposed to search design candidates efficiently in the relaxed optimal design problem at the upper level. In this paper, three clustering methods are applied to time aggregation and compared with one another in terms of the computation efficiency. Especially, the k-medoids method is applied newly in addition to the time-series and operation-based methods applied previously. A case study is conducted on the optimal design of a gas turbine cogeneration system for district energy supply. Through the study, it turns out the k-medoids method is effective to shorten the computation time as compared with the time-series method, although it is necessary to set the number of clusters artifically in both the methods. It also turns out that the operation-based method is more effective than the k-medoids method in terms of the computation efficiency even with the number of clusters set automatically.
    Language: Japanese
    Type: article , doc-type:article
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  • 3
    Publication Date: 2023-04-17
    Description: A robust optimal design method of energy supply systems under uncertain energy demands has been proposed using a mixed- integer linear model for constituent equipment. A robust optimal design problem has been formulated as a three-level min-max- min optimization one by expressing uncertain energy demands by intervals, evaluating the robustness in a performance criterion based on the minimax regret criterion, and considering hierarchical relationships among design variables, uncertain energy demands, and operation variables. However, this method takes a long computation time, and thus it can be applied only to small-scale problems. In this paper, mixed-integer linear programming method in consideration of the hierarchical relationship between design and operation variables is applied to parts of the robust optimal design method which take long computation times to solve problems efficiently. In a case study, this revised method is applied to the robust optimal design of a cogeneration system with a simple configuration, and the validity and effectiveness of the method are ascertained.
    Language: Japanese
    Type: article , doc-type:article
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  • 4
    Publication Date: 2023-04-17
    Description: 本稿では,線形計画問題を解くソフトウェアである線形計画ソルバの標準的な利用方法と,原稿執筆時点で利用可能なソルバを可能な限り紹介する.筆者らはソルバ開発コミュニティの中で仕事をしているので,この機会に現在のソルバ開発現場の様子も紹介するとともに,各ソルバの特徴として何を紹介するべきかは,できる限り開発者,または,開発者に近い研究者に問い合わせて記述した.本稿は,多くの線形計画ソルバの選択肢がある中で,読者がもつ問題を解くのに最も適当なソルバを選択するための指針を与えることを主たる目的としている.
    Language: Japanese
    Type: article , doc-type:article
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  • 5
    Title: VOB Vergabe- und Vertragsordnung für Bauleistungen : Teil A (DIN 1960), Teil B (DIN 1961), Teil C (ATV)
    Edition: Ausgabe 2019
    Publisher: Berlin :Beuth-Verlag,
    Year of publication: 2019
    Pages: XVI, 8, 1123 Seiten
    Type of Medium: Book
    Language: Undetermined
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  • 6
    Publication Date: 2023-04-17
    Description: Ahierarchical mixed-integer linear programmingmethod has been proposed to solve optimal design problems of energy supply systems efficiently. In this paper, a method of reducing model by clustering periods is proposed to search design solution candidates efficiently in the relaxed optimal design problem at the upper level. This method is realized only by clustering periods and averaging energy demands for clustered periods, while it guarantees to derive the optimal solution. Through acase study on the optimaldesign of a cogeneration system, ti is clarified how the model reduction si effective ot enhance the computation efficiency.
    Language: Japanese
    Type: article , doc-type:article
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  • 7
    Publication Date: 2023-04-17
    Description: A hierarchical mixed-integer linear programming method to solve optimal design problems of energy supply systems efficiently has been proposed. The original problem is solved by dividing it into a relaxed optimal design problem at the upper level and optimal operation problems which are independent of each other at the lower level. In this paper, a method of reducing model by time aggregation is proposed to search design solution candidates efficiently in the relaxed optimal design problem at the upper level. This method is realized only by clustering periods and averaging energy demands for clustered periods, while it guarantees to derive the optimal solution. On one hand, the method may decrease the number of design variables and costraints at the upper level, and thus the computation time at the upper level. On the other hand, it may increase the numbers of generated design solution candidates and solved optimal operation problems, and thus the computation time at both the levels. Though a case study on the optimal design of a cogeneration system, it is clarified how the model reduction is effective to enhance the computation efficiency.
    Language: Japanese
    Type: article , doc-type:article
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  • 8
    Publication Date: 2023-04-17
    Description: A mixed-integer linear programming method utilizing the hierarchical relationship between design and operation variables proposed to solve the optimal design problem of energy supply systems efficiently is extended to search K-best solutions in multiobjective optimization: At the upper level, the optimal values of design variables are searched by the branch and bound method with operation variables relaxed to continuous ones; At the lower level, the values of operation variables are optimized independently at the respective periods set for variations in energy demands by the branch and bound method with the values of design variables given tentatively during the search at the upper level. A weighting method is employed for multiobjective optimization, and a weighted sum of the annual total cost and primary energy consumption is adopted as the objective function to be minimized. A practical case study on the optimal design of a cogeneration system is conducted. The validity and effectiveness of the proposed method are clarified, and the trade-off relationship between the annual total cost and primary energy consumption is confirmed.
    Language: Japanese
    Type: article , doc-type:article
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  • 9
    Journal/Serial
    Journal/Serial
    Oxford [u.a.] :Pergamon Press, ; 1.1960 - 19.1995
    Title: Annual review in automatic programming
    Publisher: Oxford [u.a.] :Pergamon Press,
    Year of publication: 1960-1995
    Dates of Publication: 1.1960 - 19.1995
    ISSN: 0066-4138
    Type of Medium: Journal/Serial
    Language: Undetermined
    Subsequent Title: Forts. ---〉:Annual reviews in control
    Additional Information: 1=3; 2=6, 3=11, 4=12; 5=13,2 von:International tracts in computer science and technology and their application
    Additional Information: 8=7; 9,2/3=8; 10=10; 11=11; 13,1=13; 14,1=15 von:Real time programming
    Additional Information: 12,1-12,2=2 von:Systems analysis and simulation
    Additional Information: 13,2=5 von:Control applications of nonlinear programming and optimization
    Parallel Title: Internetausg. ---〉:Annual reviews in control
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  • 10
    Title: Nachrichtentechnische Zeitschrift : NTZ ; Zeitschrift für Informationstechnik u. Telekommunikation ; Organ der Nachrichtentechnischen Gesellschaft im VDE
    Contributer: Nachrichtentechnische Gesellschaft / Fachausschuß Informationsverarbeitung
    Publisher: Berlin :VDE-Verl.,
    Year of publication: 1955-1995
    Dates of Publication: 8.1955,10 - 40.1987,2; 40.1987,6 - 48.1995,2
    ISSN: 0027-707X
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Vorg. ---〉:Fernmeldetechnische Zeitschrift
    Subsequent Title: 40.1987,3-5 u. Forts. ---〉:NTZ
    Note: Mikro-Elektronik
    Additional Information: Beih. ---〉:Nachrichtentechnische Fachberichte
    Additional Information: Index 1/10=11 von:Nachrichtentechnische Fachberichte
    Parallel Title: CD-ROM-Ausg. 1994 - 1995 ---〉:Elektronisches Zeitschriftenarchiv
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  • 11
    Title: Elektronische Rechenanlagen : Informationstechnik: Computer, Systeme, Anwendungen
    Contributer: Nachrichtentechnische Gesellschaft / Fachausschuß Informationsverarbeitung
    Publisher: München ; Wien :Oldenbourg,
    Year of publication: 1959-1985
    Dates of Publication: 1.1959 - 16.1974,5; 27.1985
    ISSN: 0013-5720
    Type of Medium: Book
    Language: Undetermined
    Subsequent Title: 16.1974,6 - 26.1984 ---〉:Elektronische Rechenanlagen mit Computer-Praxis
    Subsequent Title: Forts. ---〉:Informationstechnik
    Additional Information: Beil. ---〉:Computer-Praxis
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  • 12
    Journal/Serial
    Journal/Serial
    Sindelfingen b. Stuttgart :IBM, ; 1.1951 - 22.1972,Febr. = Nr. 104-209
    Title: IBM-Nachrichten /
    Author: Internationale Büro-Maschinen-Gesellschaft Deutschland 〈Sindelfingen〉
    Publisher: Sindelfingen b. Stuttgart :IBM,
    Year of publication: 1951-1972
    Dates of Publication: 1.1951 - 22.1972,Febr. = Nr. 104-209
    ISSN: 0018-8662
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Vorg. ---〉:Hollerith-Nachrichten
    Subsequent Title: Forts. ---〉:IBM Deutschland GmbH 〈Stuttgart〉: IBM-Nachrichten
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  • 13
    Journal/Serial
    Journal/Serial
    Braunschweig ; Wisbaden :Vieweg, ; [1.1959] -[2.]1960 = F. 1-8; [3.]1961 = H. 1-6=F.9-14; [4.]1962 - [5.]1963,1; 5.1963,2 - 12.1970
    Title: Elektronische Datenverarbeitung : Fachberichte über programmgesteuerte Maschinen u. ihre Anwendung = Electronic data processing
    Publisher: Braunschweig ; Wisbaden :Vieweg,
    Year of publication: 1959-1970
    Dates of Publication: [1.1959] -[2.]1960 = F. 1-8; [3.]1961 = H. 1-6=F.9-14; [4.]1962 - [5.]1963,1; 5.1963,2 - 12.1970
    ISSN: 0374-3012
    Type of Medium: Journal/Serial
    Language: Undetermined
    Subsequent Title: Forts. ---〉:Angewandte Informatik
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  • 14
    Title: IEEE transactions on biomedical engineering : a publication of the IEEE Engineering in Medicine and Biology Society
    Author: Institute of Electrical and Electronics Engineers / Computer Group
    Publisher: New York, NY :IEEE,
    Year of publication: 1964
    Dates of Publication: 11.1964 -
    ISSN: 0018-9294
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Vorg. ---〉:Institute of Electrical and Electronics Engineers: IEEE transactions on bio-medical electronics
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  • 15
    Title: IEEE transactions on automatic control : a publication of the Control Systems Society
    Author: Institute of Electrical and Electronics Engineers / Computer Group
    Contributer: Control Systems Society
    Publisher: New York, NY :Inst.,
    Year of publication: 1963
    Dates of Publication: 8.1963 -
    ISSN: 0018-9286
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Institute of Radio Engineers: IRE transactions on automatic control
    Note: Index 1/25.1956/80=26.1981,4,2; 26/36.1981/91=37.1992,8,2
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  • 16
    Title: IEEE transactions on information theory : a journal devoted to the theoretical and experimental aspects of information transmission, processing, and utilization
    Author: Institute of Electrical and Electronics Engineers / Computer Group
    Publisher: Piscataway, NY :IEEE,
    Year of publication: 1963
    Dates of Publication: 9.1963 -
    ISSN: 0018-9448
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Vorg. ---〉:Institute of Radio Engineers: IRE transactions on information theory
    Note: IEEE Information Theory Group , Index 1/28.1953/81 in: 28.1982,5,2; 29/31.1983/85 in: 31.1985; 30/32.1984/86 in: 32.1986,6; 31/33.1985/87 in: 33.1987,6; 32/34.1986/88 in: 34.1988,6; 37/39.1991/1993 in: 39.1993,6; 38/40.1992/94 in: 40.1994,6; 39/41.1993/95 in: 41.1995; 40/42.1994/96 in: 42.1996; 41/43.1995/97 in: 43.1997,6 usw.
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  • 17
    Title: IEEE transactions on microwave theory and techniques : MTT ; a publication of the IEEE Microwave Theory and Techniques Society
    Author: Institute of Electrical and Electronics Engineers / Computer Group
    Contributer: Microwave Theory and Techniques Society
    Publisher: New York, NY :IEEE,
    Year of publication: 1963
    Dates of Publication: 11.1963 -
    ISSN: 0018-9480
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Einzelne Hefte als "Special issue" bez.
    Note: Index 1/27.1953/79=28.1980,11,2; Index 1/28.1953/80 in: 29.1981,6,2; 29/36.1981/88 in: 37.1989,6,2; cum. index to MTT Symposia 1952/83 in: 31.1983,9,2; 1984/88 in: 37.1989,6,2
    Additional Information: Einzelne Bd. zugl. Bd. von:Institute of Electrical and Electronics Engineers: IEEE transactions on microwave theory and techniques / Symposium issue
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  • 18
    Title: IEEE transactions on antennas and propagation : a publication of the IEEE Antennas and Propagation Society
    Author: Institute of Electrical and Electronics Engineers / Computer Group
    Publisher: New York, NY :IEEE,
    Year of publication: 1963
    Dates of Publication: 11.1963 -
    ISSN: 0018-926X
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Institute of Radio Engineers: IRE transactions on antennas and propagation
    Note: Index 1/16.1952/68 in: 17.1969,6; 17/21.1969/73 in: 22.1974,5; 22/27.1974/79 in: 29.1981,2; 1/32.1952/84 in: 33.1985,8; 33/38.1985/90 in: 39.1991,12; 39/43.1991/95 in: 44.1996,6,2
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  • 19
    Journal/Serial
    Journal/Serial
    New York, NY :ACM Press, ; 1.1960(1961) -
    Title: Computing reviews : review journal of the Association for Computing Machinery
    Contributer: Association for Computing Machinery
    Publisher: New York, NY :ACM Press,
    Year of publication: 1961
    Dates of Publication: 1.1960(1961) -
    ISSN: 0010-4884
    Type of Medium: Journal/Serial
    Language: Undetermined
    Additional Information: Index ---〉:Comprehensive bibliography of computing literature
    Additional Information: Index ---〉:Bibliography and subject index of current computing literature
    Additional Information: Index ---〉:Association for Computing Machinery: ACM guide to computing literature
    Additional Information: Index ---〉:Bibliography of current computing literature
    Additional Information: Index ---〉:Permuted KWIC index to computing reviews
    Additional Information: Index ---〉:Permuted and subject index to computing reviews
    Parallel Title: Internetausg. ---〉:Computing reviews
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  • 20
    Journal/Serial
    Journal/Serial
    Providence, RI :Soc., ; 14.1960=Nr. 69 -
    Title: Mathematics of computation /
    Publisher: Providence, RI :Soc.,
    Year of publication: 1960
    Dates of Publication: 14.1960=Nr. 69 -
    ISSN: 0025-5718
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Vorg. ---〉:Mathematical tables and other aids to computation
    Note: National Academy of Sciences, National Research Society
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  • 21
    Journal/Serial
    Journal/Serial
    Amsterdam [u.a.] :Elsevier, Academic Press, ; 1.1960 -
    Title: Advances in computers
    Publisher: Amsterdam [u.a.] :Elsevier, Academic Press,
    Year of publication: 1960
    Dates of Publication: 1.1960 -
    ISSN: 0065-2458
    Type of Medium: Journal/Serial
    Language: Undetermined
    Note: Index 1/49.1960/99,1=50.1999; 1/49.1960/99,2=51.1999
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  • 22
    Journal/Serial
    Journal/Serial
    Bradford, West Yorkshire :Anbar Electronic Intelligence, ; 4.1960 -
    Title: Computer abstracts
    Publisher: Bradford, West Yorkshire :Anbar Electronic Intelligence,
    Year of publication: 1960
    Dates of Publication: 4.1960 -
    ISSN: 0010-4469
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Vorg. ---〉:Computer bibliography
    Additional Information: Beil. ---〉:Computer news
    Parallel Title: CD-ROM-Ausg. bis 41.1997: ---〉:Computer abstracts
    Parallel Title: CD-ROM-Ausg. ab 42.1998: ---〉:Anbar electronic intelligence
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  • 23
    Journal/Serial
    Journal/Serial
    Washington, DC [u.a.], ; 1.1883 - 23.1894; N.S. 1.1895 -
    Title: Science /
    Contributer: American Association for the Advancement of Science
    Publisher: Washington, DC [u.a.],
    Year of publication: 1883
    Dates of Publication: 1.1883 - 23.1894; N.S. 1.1895 -
    ISSN: 0036-8075
    Type of Medium: Journal/Serial
    Language: Undetermined
    Former Title: Darin aufgeg. ---〉:Scientific monthly
    Note: Bis 108.1948 und ab 146.1964 auch mit durchgehender Nr.-Zählung; ab 103.1946 entfällt Zählung N.S
    Additional Information: Beil. ---〉:American Association for the Advancement of Science: ¬The¬ AAAS observer
    Additional Information: Beil. ---〉:Genome maps
    Additional Information: Teils Suppl. ---〉:Guide to biotechnology products and instruments
    Additional Information: Ab 1992 Suppl. ---〉:Guide to scientific products, instruments and services
    Additional Information: 162,3856,A=1968/69; 165,3900,A=1969/70; 169,3951,A=1970/71; 174,4010,A=1971/72; 178,4063,A=1972/73; 182,4114,A=1973/74; 186,4165,A=1974; 190,4216,A=1975; 194,4267,A=1976; 197,4309,A=1977 von:Guide to scientific instruments
    Additional Information: 232,2=1986; 235,2=1987; 239,2=1988; 243,2=1989 von:Guide to biotechnology products and instruments
    Parallel Title: Sonderdr. ---〉:Astronomical and Astrophysical Society of America: Meeting
    Parallel Title: Internetausg. ---〉:Science / Magazine
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