• Title/Summary/Keyword: Techno-economic analysis

Search Result 191, Processing Time 0.031 seconds

A New Techno-Economic Modeling and Analysis for FTTH Optical Access Networks (광 가입자 망 진화를 위한 기술 경제성 평가)

  • Lee, Young-Ho;Hahm, Tae-Hoon;Kim, Young-Jin;Han, Jung-Hee
    • IE interfaces
    • /
    • v.18 no.3
    • /
    • pp.277-287
    • /
    • 2005
  • In this paper, we deal with a new techno-economic modeling and analysis for optical access networks. In deploying the fiber-to-the-home (FTTH) architecture, network planner needs to consider the following techno-economic issues: when do we need to upgrade existing local access network to FTTH network? how much do we invest to maximize profit? In order to answer these techno-economic questions, we need to consider the impact of emerging technologies and business environment. Toward this end, we develop a new techno-economic modeling to deal with the inherent complexity of technology evolution and cost economics. In particular, the new modeling approach provides us with an techno-economic analysis of technology alternatives such as ethernet passive optical network (E-PON) and wavelength division multiplex passive optical network (WDM-PON). In this analysis, we focus on the impact of critical factors such as the cost characteristic of proposed architecture and digital subscriber line (DSL) subscriber's churn-in to FTTH service and churn-out. We develop mixed integer-programming models for finding the evolution path of local access networks to broadband network architectures.

A Techno-Economic Feasibility Analysis on LVDC Distribution System for Rural Electrification in South Korea

  • Afamefuna, David;Chung, Il-Yop;Hur, Don;Kim, Ju-Yong;Cho, Jintae
    • Journal of Electrical Engineering and Technology
    • /
    • v.9 no.5
    • /
    • pp.1501-1510
    • /
    • 2014
  • Low voltage direct current (LVDC) distribution system is a suitable techno-economic candidate which can create an innovative solution for distribution network development with respect to rural electrification. This research focuses on the use of LVDC distribution system to replace some of KEPCO's existing traditional medium voltage alternating current (MVAC) distribution network for rural electrification in South Korea. Considering the technical and economic risks and benefits involved in such project, a comparative techno-economic analysis on the LVDC and the MVAC distribution networks is conducted using economic assessment method such as the net present value (NPV) on a discounted cash flow (DCF) basis as well as the sensitivity analysis technique. Each would play a role in an economic performance indicator and a measure of uncertainty and risk involved in the project. In this work, a simulation model and a computational tool are concurrently developed and employed to aid the techno-economic analysis, evaluation, and estimation of the various systems efficiency and/or performance.

A New Techno-Economic Modeling for ATM Based High-Speed Networks (ATM 기반 초고속 정보통신망 기술경제성 평가 모형)

  • 이영호;김정헌;김영부;이순석;강국창
    • Journal of the Korean Operations Research and Management Science Society
    • /
    • v.28 no.1
    • /
    • pp.115-129
    • /
    • 2003
  • This paper Is concerned with a new techno-economic model Ing of ATM based h19h-speed networks. Coupled with advances of technology, the rapid development of new telecommunication services significantly increases the magnitude of risk in making an Investment decision. Naturally, the success of techno-economic modeling depends on how effectively we manage underlying risk factors such as cost and technology To deal with risk factors, we need to rely on modern decision and risk analysis while Implementing mathematical optimization for solving a complex capacity expansion problem of telecommunication systems during the planning period. We provide a case study that will enhance our understanding of the techno-economic analysis for emerging telecommunication systems.

A techno-economic analysis of partial repowering of a 210 MW coal fired power plant

  • Samanta, Samiran;Ghosh, Sudip
    • Advances in Energy Research
    • /
    • v.3 no.3
    • /
    • pp.167-179
    • /
    • 2015
  • This paper presents a techno-economic analysis of a partial repowering scheme for an existing 210 MW coal fired power plant by integrating a gas turbine and by employing waste heat recovery. In this repowering scheme, one of the four operating coal mills is taken out and a new natural gas fired gas turbine (GT) block is considered to be integrated, whose exhaust is fed to the furnace of the existing boiler. Feedwater heating is proposed through the utilization of waste heat of the boiler exhaust gas. From the thermodynamic analysis it is seen that the proposed repowering scheme helps to increase the plant capacity by about 28% and the overall efficiency by 27%. It also results in 21% reduction in the plant heat rate and 29% reduction in the specific $CO_2$ emissions. The economic analysis reveals that the partial repowering scheme is cost effective resulting in a reduction of the unit cost of electricity (UCOE) by 8.4%. The economic analysis further shows that the UCOE of the repowered plant is lower than that of a new green-field power plant of similar capacity.

Techno-economic Analysis of Glycerol Steam Reforming for H2 Production Capacity of 300 m3 h-1 (300 m3 h-1급 수소 생산을 위한 글리세롤 수증기 개질반응의 기술·경제성 분석)

  • Heo, Juheon;Lim, Hankwon
    • Applied Chemistry for Engineering
    • /
    • v.29 no.2
    • /
    • pp.209-214
    • /
    • 2018
  • In this paper, the techno-economic analysis of glycerol steam reforming for $H_2$ production capacity of $300m^3\;h^{-1}$ was carried out. The process of glycerol steam reforming was constructed by using Aspen $HYSYS^{(R)}$, a commercial process simulator, and parametric studies for the effect of the operating temperature on $H_2$ production was performed. Moreover, the economic analysis was conducted through an itemized cost estimation, sensitivity analysis (SA) and cash flow diagram (CFD), and the unit $H_2$ production cost was 5.10 $ ${kgH_2}^{-1}$ through the itemized cost estimation of glycerol steam reforming for $H_2$ production capacity of $300m^3\;h^{-1}$. SA was employed to identify key economic factors and various economic indicators such as net present value (NPV), discounted payback period (DPBP), and present value ratio (PVR) were found according to $H_2$ selling price using CFD.

A New Techno-Economic Analysis for Developing an Effective Maintenance Policy of Telecommunication Systems (통신시스템 유지보수 운용에 관한 기술경제성 분석)

  • 이영호;최은영;이지형;조상섭;박정석
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.27 no.10C
    • /
    • pp.921-932
    • /
    • 2002
  • In this research, we seek to identify an effective operation management strategy of telecommunication systems. In order to develop operation management strategies, we implement a quantitative techno-economic analysis. We evaluate related issues and factors, and apply the developed method to PSTN switching systems. In the proposed techno-economic modeling, we apply a well-known factor analysis technique-analytic hierarchy process-to evaluate PSTN operation management strategies. Then, we implement a decision analysis methodology to evaluate the cost of proposed strategies. We evaluate the proposed methodology by using available real data of the PSTN system. The primary impact of this research will be realized in helping PSTN operator select the best operation management strategy of PSTN system.

Techno-Economic Analysis and Life-Cycle Assessment for the Production of Hydrogen from Biogas (바이오가스 기반 수소 생산공정에 대한 경제성 및 환경성 분석)

  • KIM, HYUNWOO;BAEK, YOUNGSOON;WON, WANGYUN
    • Transactions of the Korean hydrogen and new energy society
    • /
    • v.32 no.5
    • /
    • pp.417-429
    • /
    • 2021
  • Due to fossil fuel depletion and environmental pollution, H2 production from organic waste has received an increased attention. In this study, we present an integrated process for the H2 production from biogas and evaluate the economic feasibility and sustainability via rigorous techno-economic analysis (TEA) and life-cycle assessment (LCA). Through the TEA, we determine the minimum H2 selling price using discounted cash flow analysis and investigate the main cost drivers. The environmental impact of the proposed process is quantified via LCA.

Techno-economic Analysis(TEA) on Hybrid Process for Hydrogen Production Combined with Biomass Gasification Using Oxygen Released from the Water Electrolysis Based on Renewable Energy (재생에너지기반 수전해 생산 수소와 바이오매스 가스화 하이브리드 공정의 기술 경제성 분석)

  • Park, Sungho;Ryu, JuYeol;Sohn, Geun
    • Journal of the Korean Institute of Gas
    • /
    • v.24 no.5
    • /
    • pp.65-73
    • /
    • 2020
  • To reduce the hydrogen production cost through the utilizing the oxygen and improving the capacity factor of water electrolysis used to energy storage of renewable energy, the hybrid hydrogen production process which has dual operating concept of using the water electrolysis as energy storage and oxygen production process for biomass gasification was proposed. Moreover, Techno-economic analysis on this system was quantitatively performed.

Techno-economic evaluation of the 2,3-butanediol dehydration process using a hydroxyapatite-alumina catalyst

  • Song, Daesung;Yoon, Young-Gak;Lee, Chul-Jin
    • Korean Journal of Chemical Engineering
    • /
    • v.35 no.12
    • /
    • pp.2348-2354
    • /
    • 2018
  • We designed a conceptual model of the 2.3-BDO dehydration process using a hydroxyapatite-alumina catalyst and estimated its economic feasibility to predict the appropriate range of the purchase price of 2,3-BDO on commercial scale. The conceptual design and economic analysis can offer valuable information for the industrial application of 2,3-BDO because the most relevant studies have limitation in laboratory scale. Furthermore, the adequate range of 2,3-BDO price, in which the process has profitability, was investigated with the current market prices of 1,3-BD. The investigated price in terms of 2,3-BDO dehydration can pertain to estimation of the economic feasibility in 2,3-BDO production process.

Computational simulation of intelligent big data analysis under nanotube rotation

  • Lunan Li;Allam Maalla
    • Advances in nano research
    • /
    • v.14 no.1
    • /
    • pp.67-80
    • /
    • 2023
  • Economic investigation is one of the main issues regarding the design and production of small-scale structures. This paper concerns the creation, implementation, and economic aspects of the cross-section profile of small-scale structures regarding the dynamic response of the free and forced vibration behavior of spinning nanoscale beams based on big data analysis. According to the financial analysis, the three practical non-uniform functions of cross-sections are compared to the uniform beam in the same weight and the equal material used. The previous studies reported that the uniform beams are more stable and contain a better frequency response based on the mechanical analysis. Still, concerning the economic investigation, which means the considered structures should have equal length and have the same weight in the aspect of material used, the conclusion can be different from the mechanical aspect. Consequently, in the current paper, the dynamic response along with computer technology as well as the big data analysis of the free and forced vibration of the nanobeam regarding the economic shape of the cross-section is scrutinized.