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cost-benefit-analysis
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Cost-Benefit analysis of Iran-Europe Natural gas pipeline in the field of Economics, Environment and Energy Security
, M.Sc. Thesis Sharif University of Technology ; Maleki, Abbas (Supervisor)
Abstract
The intermediary between Consumer and market of Natural gas is long transportation pipeline. Analysis of different dimension is a prerequisite for constructing these infrastructures. This study has been done in the fields of economics, environment and energy security. The proposed pipeline, which is called Islamic pipeline, passes through different countries, Iraq, Syria, Greece and Italy. It carries natural gas and feeds Europe gas requirements, also passes the Mediterranean Sea, which includes underwater pipe-laying technology that has been considered. Economic analysis of this project calculated, using Cost-Benefit analysis. Environmental issues has been identified and classified,...
The Integrative dam Assessment Modeling for Multidisciplinary Analysis of Costs and Benefits (Case Study: Alavian Dam)
, M.Sc. Thesis Sharif University of Technology ; Abrishamchi, Ahmad (Supervisor) ; Tajrishi, Masoud (Co-Supervisor)
Abstract
Despite there are many publications and press on the benefits and costs of dams from a purely single-discipline perspective, but recent studies simultaneously assess biophysical, economic, and social issues as well as concepts related to political geography about dams. The purpose of this study is to model the benefits and costs of constructing a dam from a multi-field perspective. The Integrative Dam Assessment Modeling (IDAM) is designed to integrate biophysical, economic, social and political geography perspectives into a single cost-benefit analysis of dam construction. In particular, a new tool of integrative dam assessment model has been proposed to evaluate the costs and benefits...
Flood Risk-Based Design for Roads and Pipelines Crossing from Wetlands; Case Study: Horulazim Wetland
, M.Sc. Thesis Sharif University of Technology ; Raie, Mohammad (Supervisor)
Abstract
One of the natural functions of wetlands is to neutralize the dangers caused by floods. Therefore, if a facility is built in the area of wetlands, it should not disturb their natural functioning. During the Iran-Iraq war, several antenna roads were built across the wetland, and the construction of these roads divided the wetland into 5 separate reservoirs. After the end of the war and with the development of the oil fields west of Karun (Hor al-Azim region), the extraction of oil from this region was put on the agenda. With the flood of April 2018, these facilities and roads were exposed to damage and flooding, and oil production from these reservoirs was stopped. In this research, after...
Determination of the Desired and Economical Reliability Level in Electric Power Distribution Systems Considering Network Condition
, M.Sc. Thesis Sharif University of Technology ; Safdarian, Amir (Supervisor) ; Fotuhi Firuzabad, Mahmud (Co-Supervisor)
Abstract
Electric energy distribution system (DS) reliability has a great impact on the quality of service provided to customers. On the other hand, improving the reliability performance in a DS is an expensive task. So, determining an efficient and economical target for the reliability of DSs is imperative. This thesis aims to determine efficient and economical reliability targets for reliability indices of DS based on data envelopment analysis (DEA) considering distribution feeders as the decision-making units (DMUs). For this sake, using the fuzzy c-mean (FCM) method, feeders are clustered and the membership degrees are determined so that the target associated with each feeder gets greater impact...
Industrial Symbiosis Analysis between Biogas Plants and Photovoltaic Greenhouses, Using Geographic Information System
, M.Sc. Thesis Sharif University of Technology ; Roshandel, Ramin (Supervisor)
Abstract
Meeting the energy demand of agricultural greenhouses has turned out to be the most important challenge of greenhouse cultivation. In this study, it is proposed to use the concept of industrial symbiosis between agricultural greenhouses and biogas plants to face this challenge. The main purpose of the study is to investigate the potential clean greenhouse area that may be supported by the proposed symbiotic network, in order to provide a decision-making tool for the relevant policymakers. The methodology is based on the agent-based input-output matching economic analysis. The amount of biogas produced by poultry and cattle manure is estimated to be 0.6 (m3 / kg VS) and 0.47 (m3 / kg VS)...
Cost-Benefit Analysis of Greenhouse Gases Emissions Reduction in Iran’s Power Sector for Implementing the Intended Nationally Determined Contribution Under the Paris Agreement
, M.Sc. Thesis Sharif University of Technology ; Maleki, Abbas (Supervisor)
Abstract
The Cost/Benefit Analysis (CBA) is considered to be among the chief and most widely used analytical tools in the realm of public policy and particularly environmental and climatic planning. The National Strategic Plan on Climate Change—a.k.a., Intended Nationally Determined Contribution (INDC) of Iran—under the Paris Agreement (PA) accommodates sets of measures to be undertaken in various sectors of the country, including energy and specifically the power generation sub-sector, so as to reduce the emission of greenhouse gases (GHGs). This study begins with a regression analysis of historical data to identify current trends of fossil fuels consumption, wherefrom the emission level of relevant...
Semi-automated Distribution System Planning with Considering Decentralized Automation at Feeder Level
, M.Sc. Thesis Sharif University of Technology ; Fotuhi Firuzabad, Mahmoud (Supervisor)
Abstract
Implementation of telecommunication-based distribution automation is possible in both centralized and decentralized manners. Although centralized automation is more pervasive than decentralized automation, benefits of decentralized automation systems, like improving reliability and speeding up the fault management process, encourage distribution companies to implement these systems. However, high cost of decentralized automation can be a deterrent to most distribution companies. Therefore, economic planning and creating economic justifications for decentralized distribution automation are necessary for the development of these systems. In this dissertation, economic analysis and planning of...
Reliability Studies of a Smart Distribution System Based on the Concept of Multi-microgrid
, Ph.D. Dissertation Sharif University of Technology ; Fotuhi Firuzabad, Mahmud (Supervisor)
Abstract
Current trend of energy consumption and aging infrastructure of electricity grids mandates high amounts of investment in transmission and distribution networks. On the other hand, with increased awareness about environmental issues, share of renewable energy resources in power generation portfolio has risen in recent years. Microgrids, as one of the most promising solutions to tackle these issues, are able to accommodate high penetration levels of renewable energy sources and distributed generation in distribution systems. However, microgrids sizes are limited due to some operational considerations and as a result, efficient management of distribution systems with high penetration of...
Evaluating and Comparing the Effects of Various Materials used in Building Envelope on Energy Consumption using Building Information Modeling(BIM)
, M.Sc. Thesis Sharif University of Technology ; Alvanchi, Amin (Supervisor) ; Taghados, Hossein (Supervisor)
Abstract
Most of the energy consumed in the country is spent on heating and cooling of buildings. The use of various materials in building construction can have a significant impact on reducing energy waste and the cost of consuming gas and electricity. One of the ways to increase the quality and efficiency of resources, including energy saving, is to use industrial and semi-industrial materials. The purpose of this study is to compare the use of traditional, semi-industrial and industrial materials in the external wall of the building in terms of energy consumption and utilization costs, taking into account the initial cost of energy and the cost of energy during the operation period. In this...
Cost-benefit Analysis of Insurance Companies in Usage-based and Common Car Insurance Market
, M.Sc. Thesis Sharif University of Technology ; Samimi, Amir (Supervisor)
Abstract
Car usage-based insurance is recently introduced to the market of car insurance and because these contracts are new in this market, Insurers and other beneficiaries are eager to know about the outcome of them. In this study, the outcome of these contracts and equilibrium of the market have been analyzed from the view of insurers. An insurer as a profitable firm want to analyze its costs and benefits, and as a result, one of the most important factors from the view of the insurer is the cost-benefit analysis when the insurer enters into the new market of usage-based insurance. For this analysis, by contract selection and insurer loss payment data, insurer cost and benefit forecasting models...
Warranty servicing for discretely degrading items with non-zero repair time under renewing warranty
, Article Computers and Industrial Engineering ; Volume 65, Issue 1 , 2013 , Pages 176-185 ; 03608352 (ISSN) ; Mahlooji, H ; Jahromi, A. E ; Sharif University of Technology
2013
Abstract
This paper considers a repair-replacement strategy for a special class of discretely degrading and repairable products under renewing free replacement warranty. Each product may experience N different working states with different exponential hazard functions, before the warranty contract expires. Once the item enters working state i (i = 1,2, ⋯ ,N), it can either fail or move to any of the subsequent working states with different probabilities, given that a transition has been made. In the former case, the best rectification action, replacement or minimal repair, regarding the failure status, i.e., the product degradation level at the failure time and the remaining warranty time, should be...
Value based seismic design of structures using performance assessment by the endurance time method
, Article Structure and Infrastructure Engineering ; Volume 16, Issue 10 , January , 2020 , Pages 1397-1415 ; Estekanchi, H. E ; Sharif University of Technology
Taylor and Francis Ltd
2020
Abstract
A framework for optimal seismic design of structures, considering maximum value as the design objective, is introduced. In this framework, the value parameter incorporates a comprehensive set of performance indicators. Decision indicators are mapped into equivalent economic values and are directly involved in the design process. This approach leads to optimal assignment of the available resources to meet infrastructure requirements. The construction cost and the risk of seismic consequences are considered as the value components. FEMA-P58 methodology is utilized in estimation of the seismic consequences including the repair cost, repair time, injuries and casualties. Endurance Time method is...
Utilization of percolation approach to evaluate reservoir connectivity and effective permeability: A case study on North Pars gas field
, Article Scientia Iranica ; Vol. 18, issue. 6 , December , 2011 , p. 1391-1396 ; ISSN: 10263098 ; Masihi, M ; Pishvaie, M ; Shojaei, A ; King, P. R ; Sharif University of Technology
Abstract
Reservoir characterization, especially during early stages of reservoir life, is very uncertain, due to the scarcity of data. Reservoir connectivity and permeability evaluation is of great importance in reservoir characterization. The conventional approach to addressing this is computationally very expensive and time consuming. Therefore, there is a great incentive to produce much simpler alternative methods. In this paper, we use a statistical approach called the percolation theory, which considers a hypothesis wherein the reservoir can be split into either permeable (i.e. sand/fracture) or impermeable flow units (i.e. shale/matrix), and assumes that the connectivity of permeability...
Utilization of percolation approach to evaluate reservoir connectivity and effective permeability: A case study on North Pars gas field
, Article Scientia Iranica ; Volume 18, Issue 6 , December , 2011 , Pages 1391-1396 ; 10263098 (ISSN) ; Masihi, M ; Pishvaie, M ; Shojaei, A ; King, P. R ; Sharif University of Technology
2011
Abstract
Reservoir characterization, especially during early stages of reservoir life, is very uncertain, due to the scarcity of data. Reservoir connectivity and permeability evaluation is of great importance in reservoir characterization. The conventional approach to addressing this is computationally very expensive and time consuming. Therefore, there is a great incentive to produce much simpler alternative methods. In this paper, we use a statistical approach called the percolation theory, which considers a hypothesis wherein the reservoir can be split into either permeable (i.e. sand/fracture) or impermeable flow units (i.e. shale/matrix), and assumes that the connectivity of permeability...
Using sensitivity analysis and gradual evaluation of ignition delay error to produce accurate low-cost skeletal mechanisms for oxidation of hydrocarbon fuels under high-temperature conditions
, Article Energy and Fuels ; Volume 31, Issue 10 , 2017 , Pages 11234-11252 ; 08870624 (ISSN) ; Mazaheri, K ; Owliya, M ; Sharif University of Technology
Abstract
Three-dimensional thermo-hydrodynamic analysis of gas turbine combustion chambers is of great importance in the power generation industry to achieve higher efficiency and reduced emissions. However, it is prohibitive to use a comprehensive full-detailed mechanism in their simulation algorithms because of the huge CPU time and memory space requirements. Many reduction approaches are available in the literature to remedy this problem. Here a new approach is presented to reduce large detailed or skeletal mechanisms of oxidation of hydrocarbon fuels to a low-cost skeletal mechanism. The method involves an integrated procedure including a Sensitivity Analysis (SA) and a procedure of Gradual...
Two-dimensional warranty cost analysis for second-hand products
, Article Communications in Statistics - Theory and Methods ; Volume 40, Issue 4 , 2011 , Pages 684-701 ; 03610926 (ISSN) ; Chukova, S ; Saidi-Mehrabad, M ; Niaki, S. T. A ; Sharif University of Technology
2011
Abstract
In spite of the recent steady increase of the volume of the second-hand markets, often customers remain in doubt regarding the quality and durability of the secondhand products. Aiming to reduce and share this uncertainty, dealers offer warranty on their products. Offering warranty for second-hand products is a relatively new marketing strategy employed by dealers of used electronic equipment, furniture, automobiles, etc. Usually, for used products, the dealer's expected warranty cost is a function of product reliability, past age and usage, servicing strategy and conditions and terms of the warranty policy/contract. Sometimes the offered policy is limited by two parameters, typically the...
Trust-based user-role assignment in Role-Based Access Control
, Article 2007 IEEE/ACS International Conference on Computer Systems and Applications, AICCSA 2007, Amman, 13 May 2007 through 16 May 2007 ; June , 2007 , Pages 807-814 ; 1424410312 (ISBN); 9781424410316 (ISBN) ; Amini, M ; Jalili, A ; Sharif University of Technology
2007
Abstract
Role Based Access Control (RBAC) model is naturally suitable to organizations where users are assigned organizational roles with well-defined privileges. Nowadays, many organizations and enterprises such as banks, insurance industry and utility companies, provide online services to their veiy large number of users. This shows that assigning users to roles is a intolerable task and maintaining user-role assignment up-to-date is costly and error-prone. Also, with the increasing number of users, RBAC may have problems in prohibiting cheat and changing roles of users. To overcome these problems, user-role assignment decision can be made based on how much we trust him/her. In this paper, we...
Toward a business model for software product line architecture
, Article 8th ACIS International Conference on Software Engineering Research, Management and Applications, SERA 2010, 24 May 2010 through 26 May 2010, Montreal, QC ; 2010 , Pages 50-56 ; 9780769540757 (ISBN) ; Moaven, S ; Habibi, J ; Ahmadi, H ; Sharif University of Technology
2010
Abstract
Nowadays, software product line is an approach to reduce costs of software development, decrease time to market, and increase capabilities of reuse in designing and exploiting software development processes. Moreover, other quality attributes of the project domain should be considered to enhance quality of the product. Meanwhile, taking advantage of software product line makes developers capable of estimating development costs and time to market in a more realistic way. However, old approaches to estimate cost of development and foresee time to market are not suitable enough for software product line. In this paper, some important business parameters and a way to calculate cost and time to...
Time series analysis framework for forecasting the construction labor costs
, Article KSCE Journal of Civil Engineering ; Volume 25, Issue 8 , 2021 , Pages 2809-2823 ; 12267988 (ISSN) ; Gholipour, Y ; Kashani, H ; Sharif University of Technology
Springer Verlag
2021
Abstract
This manuscript presents a framework to develop vector error correction (VEC) models applicable to forecasting the short- and long-run movements of the average hourly earnings of construction labor, which is an essential predictor of the construction labor costs. These models characterize the relationship between average hourly earnings and a set of explanatory variables. The framework is applied to develop VEC forecasting models for the average hourly earnings of construction labor in the USA based on the identified variables that govern its movements, such as Global Energy Price Index, Gross Domestic Product, and Personal Consumption Expenditures. More than 150 candidate VEC models were...
The single period problem with price discount and probabilistic initial inventory
, Article 2006 IIE Annual Conference and Exposition, Orlando, FL, 20 May 2006 through 24 May 2006 ; 2006 ; Haji, M ; Sharif University of Technology
2006
Abstract
In this paper we consider a newsvendor problem in which the suppliers offer quantity discounts. We assume that the initial inventory at the beginning of the period is a random variable. This assumption, among other applications, may apply to the case where the decision about the order quantity must be made at a time long before the start of the period and the available inventory may decrease due to several factors, such as deterioration, consumption, etc. up to the start of the period. In this paper, we obtain the optimal order quantity that maximizes the total profit for this model