نتایج جستجو برای: objective optimization model used for energy system planning

تعداد نتایج: 12023449  

For remote places having less-strong wind, single resources based renewable energy system (RES) with battery storage can sustainably and economically generate electrical energy. There is hardly any literature on optimal sizing of such RES for very low load demand situation. The objective of this study is to techno-economically optimize the system design of a Photovoltaic (PV)-battery storage RE...

Journal: :international journal of civil engineering 0
k. behzadian environmental research center, amirkabir university of technology, 424, hafez ave.-p.o. box: 15875-4413- tehran, iran m. alimohammadnejad environmental research center, amirkabir university of technology, 424, hafez ave.-p.o. box: 15875-4413- tehran, iran a. ardeshir environmental research center, amirkabir university of technology, 424, hafez ave.-p.o. box: 15875-4413- tehran, iran h. vasheghani executing manager of karaj urban and suburban railway organization , karaj, tehran, iran f. jalilsani department of mechanical engineering, amirkabir

compared to conventional chlorination methods which apply chlorine at water treatment plant, booster chlorination has almost solved the problems of high dosages of chlorine residuals near water sources and lack of chlorine residuals in the remote points of a water distribution system (wds). however, control of trihalomethane (thm) formation as a potentially carcinogenic disinfection by-product ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان 1389

implicit and unobserved errors and vulnerabilities issues usually arise in cryptographic protocols and especially in authentication protocols. this may enable an attacker to make serious damages to the desired system, such as having the access to or changing secret documents, interfering in bank transactions, having access to users’ accounts, or may be having the control all over the syste...

Journal: :international journal of smart electrical engineering 2012
ehsan sadeghian ramtin sadeghi

optimal capacitor placement, considering power system loss reduction, voltage profile improvement, line reactive power decrease and power factor correction, is of particular importance in power system planning and control. the distribution system operator calculates the optimal place, number and capacity of capacitors based on two major purposes: active power loss reduction and return on invest...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...

Journal: :shiraz journal of system management 0

abstract. when a production facility is designed, there are various parameters affecting the number machines such as production capacity and reliability. it is often a tedious task to optimize different objectives simultaneously. the other issue is the uncertainty in many design parameters which makes it difficult to reach a desirable solution. in this paper, we present a new mathematical model...

Journal: :international journal of information, security and systems management 2014
mohsen mohammadi nasser yousefi

this paper presents a new hybrid particle swarm optimization with time varying acceleration coefficients (hpsotvac) and bacteria foraging algorithm (bfa) namely (psotvac/bfa) base fuzzy stochastic long term approach for determining optimum location and size of distributed energy resources (ders). the monte carlo simulation method is used to model the uncertainties associated with long-term load...

Journal: :international journal of smart electrical engineering 2013
amir navakhah mahmoudreza haghifam soudabe soleymani

design and expansion of distribution systems seems inevitable in view of the need to satisfy the rise in energy consumption in a technical and economical way. optimal location, sizing and determining the service area of substations is one of the principle problems in expansion of distribution systems. also uncertainty is one of the important factors that increase risk of exact decision makings....

Journal: :مدیریت صنعتی 0
علیرضا شریفی سلیم دانشجوی دکتری، مدیریت صنعتی، دانشکدۀ مدیریت، دانشگاه تهران، تهران، ایران منصور مومنی استاد، مدیریت صنعتی، دانشکدۀ مدیریت، دانشگاه تهران، تهران، ایران محمد مدرس یزدی استاد، مهندسی صنایع، دانشکدۀ مهندسی صنایع، دانشگاه صنعتی شریف، تهران، ایران رضا راعی استاد، مدیریت مالی، دانشکدۀ مدیریت، دانشگاه تهران، تهران، ایران

in traditional portfolio selection model coefficients often are certain and deterministic, but in real world these coefficients are probabilistic. so decision maker cannot estimate them exactly. financial optimization is one of the most attractive areas in decision under uncertainty. in the portfolio selection problem the decision maker considers simultaneously conflicting objectives such as ra...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

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