Sökning: "driftskostnader OPEX"

Hittade 4 uppsatser innehållade orden driftskostnader OPEX.

  1. 1. Life Cycle Cost of Smart Wayside Object Controller

    Master-uppsats, KTH/Spårfordon

    Författare :Filipp Zarov; [2021]
    Nyckelord :railway signalling system; interlocking; hardware; Object Controller; Smart Wayside Object controller; Lifecycle Cost; renewable energy sources; järnvägssignalsystem; ställverk; hårdvara; Utdelar; SWOC; livscykelkostnad; förnybara energikällor;

    Sammanfattning : In a regional railway signalling system, object controllers are the devices responsible for controlling Track Side Equipment and act as interfaces for TSE with the interlocking computer and the Traffic control system. However, associated cabling (signal and power cabling) and civil works pose a major capital investment and it is a source of significant Capital and Operational expenses, particularly in rural areas, where accessibility andconnectivity to power grid and to the interlocking are a problem. LÄS MER

  3. 2. Techno-Economic Analysis of an Innovative Purely Solar Driven Combined Cycle System based on Packed Bed TES Technology

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Tianqi Ruan; [2019]
    Nyckelord :Tower CSP Techno-economic analysis; Dynamic simulation; Tower CSP teknisk-ekonomisk analys; Dynamisk simulering;

    Sammanfattning : With increasing awareness of environmental issues and worldwide requirements for sustainable development, renewable energy technologies with lower environmental impact, especially those having abundant resources like wind and solar energy, attract more attention. Concentrating Solar Power (CSP) is one of the most promising solar energy technologies. LÄS MER

  4. 3. Techno-economic analysis of Open Optical LineSystems

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Vasileios Papageorgiou; [2018]
    Nyckelord :Capital expense CAPEX ; operational expenses OPEX ; optical networks; dense wavelength-division multiplexing DWDM ; disaggregated DWDM; integrated DWDM; traffic volume; transponders; line system; Capital Expense CAPEX ; driftskostnader OPEX ; optiska nätverk; tät våglängds delnings multiplexering DWDM ; disaggregerad DWDM; integrerad DWDM; trafikvolym; transpondrar; linjesystem;

    Sammanfattning : Technology innovations and capacity upgrades in optical networks have influenced the optical transmission. As a result, network operators are considering separating hardware and software components in order to achieve efficiency and promising savings during network operation and network lifecycle. LÄS MER

  5. 4. Make yourself at home : A comparative study of VoLTE Roaming architectures

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Ioannis Kaltsas; [2017]
    Nyckelord :Local breakout; RAVEL; S8HR; VoLTE roaming; Local breakout; RAVEL; S8HR; VoLTE roaming;

    Sammanfattning : While the data traffic has increased through the years, the average revenue per user (ARPU) remains flat. Thus, mobile network operators need to find a solution for how to support the growing amounts of traffic at fixed revenue per user. LÄS MER