抄録
In this study, a renewal planning problem of energy supply system is formulated as a large scale mixed-integer linear programming problem, in which the objective function to the minimized is the average value of annual total cost during system's evaluation period. By adopting the programming language AMPL and CPLEX solver, a numerical study is carried out for a hospital, where electrical(e.g., heat pump) and gas(e.g., gas engine cogeneration) systems are compared together with arbitrary combination one, which is composed of electrical and gas driven pieces of equipment, by focusing particularly on the influence of initial system's difference. The main results obtained are as follows: (a) If the initial system is gas one, it is better to renew it to the electrical one as soon as possible due to relatively low energy efficiency of gas utilizing pieces of equipment, the high price of gas input energy and so on. (b) If the initial system is electrical one, the optimal renewal year becomes relatively later year, because it is economically better to use the initially installed high efficiency system as long as possible. (c) Theoretically, the arbitrary combination system is of course the best renewal one. However, there is no economic difference between the arbitrary combination system and the electrical one.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 2312-2323 |
| ページ数 | 12 |
| ジャーナル | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| 巻 | 79 |
| 発行部数 | 806 |
| DOI | |
| 出版物ステータス | Published - 2013 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Mechanical Engineering
- Condensed Matter Physics
これを引用
Influence of initial systems on the renewal planning of energy supply systems for a hospital. / Yoshida, Shu; Yoshida, Akira; Ito, Koichi; Amano, Yoshiharu.
：: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 巻 79, 番号 806, 2013, p. 2312-2323.研究成果: Article
}
TY - JOUR
T1 - Influence of initial systems on the renewal planning of energy supply systems for a hospital
AU - Yoshida, Shu
AU - Yoshida, Akira
AU - Ito, Koichi
AU - Amano, Yoshiharu
PY - 2013
Y1 - 2013
N2 - In this study, a renewal planning problem of energy supply system is formulated as a large scale mixed-integer linear programming problem, in which the objective function to the minimized is the average value of annual total cost during system's evaluation period. By adopting the programming language AMPL and CPLEX solver, a numerical study is carried out for a hospital, where electrical(e.g., heat pump) and gas(e.g., gas engine cogeneration) systems are compared together with arbitrary combination one, which is composed of electrical and gas driven pieces of equipment, by focusing particularly on the influence of initial system's difference. The main results obtained are as follows: (a) If the initial system is gas one, it is better to renew it to the electrical one as soon as possible due to relatively low energy efficiency of gas utilizing pieces of equipment, the high price of gas input energy and so on. (b) If the initial system is electrical one, the optimal renewal year becomes relatively later year, because it is economically better to use the initially installed high efficiency system as long as possible. (c) Theoretically, the arbitrary combination system is of course the best renewal one. However, there is no economic difference between the arbitrary combination system and the electrical one.
AB - In this study, a renewal planning problem of energy supply system is formulated as a large scale mixed-integer linear programming problem, in which the objective function to the minimized is the average value of annual total cost during system's evaluation period. By adopting the programming language AMPL and CPLEX solver, a numerical study is carried out for a hospital, where electrical(e.g., heat pump) and gas(e.g., gas engine cogeneration) systems are compared together with arbitrary combination one, which is composed of electrical and gas driven pieces of equipment, by focusing particularly on the influence of initial system's difference. The main results obtained are as follows: (a) If the initial system is gas one, it is better to renew it to the electrical one as soon as possible due to relatively low energy efficiency of gas utilizing pieces of equipment, the high price of gas input energy and so on. (b) If the initial system is electrical one, the optimal renewal year becomes relatively later year, because it is economically better to use the initially installed high efficiency system as long as possible. (c) Theoretically, the arbitrary combination system is of course the best renewal one. However, there is no economic difference between the arbitrary combination system and the electrical one.
KW - Energy management
KW - Energy supply systems
KW - Engineering optimization
KW - Hospital
KW - Renewal planning
KW - Systems engineering
UR - http://www.scopus.com/inward/record.url?scp=84887428069&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887428069&partnerID=8YFLogxK
U2 - 10.1299/kikaib.79.2312
DO - 10.1299/kikaib.79.2312
M3 - Article
AN - SCOPUS:84887428069
VL - 79
SP - 2312
EP - 2323
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 806
ER -