Sökning: "combined heat and power"

Visar resultat 1 - 5 av 150 avhandlingar innehållade orden combined heat and power.

  1. 1. Combined heat and power plant flexibility - Technical and economic potential and system interaction

    Författare :Johanna Beiron; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; Waste to energy; Dynamic modeling; Combined cycle; Flexibility; Combined heat and power; Process optimization modeling; Electricity price volatility; District heating;

    Sammanfattning : The share of variable renewable energy sources in electricity generation systems is expected to increase, leading to increased variability in the load that must be provided by conventional power plants or other flexibility measures. Thus, thermal power plants need to consider implementation of technical measures that enhance flexibility; to maintain profitability of operation with increased electricity price fluctuation, and to support electricity system stability. LÄS MER

  2. 2. Thermodynamic analysis of Stirling engine systems : Applications for combined heat and power

    Författare :Joseph Adhemar Araoz Ramos; Torsten Fransson; Carlos Augusto Santos Silva; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stirling engine; Thermodynamic analysis; Energiteknik; Energy Technology;

    Sammanfattning : Increasing energy demands and environmental problems require innovative systems for electrical and thermal energy production. In this scenario, the development of small scale energy systems has become an interesting alternative to the conventional large scale centralized plants. LÄS MER

  3. 3. From Combined Heat and Power to Polygeneration

    Författare :Fredrik Starfelt; Jinyue Yan; Eva Thorin; Umberto Desideri; Mälardalens högskola; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : In order to reach targets on reducing greenhouse gas emissions from fossil resources it is necessary to reduce energy losses in production processes. In polygeneration, several processes are combined to complement each other to avoid sub-optimization of the standalone processes. LÄS MER

  4. 4. On the Analysis and Fault-Diagnosis Tools for Small-Scale Heat and Power Plants

    Författare :Jaime Arriagada; Kraftverksteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermal engineering; applied thermodynamics; Termisk teknik; termodynamik; genetic algorithms; neural networks; fault diagnosis; maintenance; availability; reliability; energy analysis; combined heat and power; Methods and tools; small scale;

    Sammanfattning : The deregulation of the electricity market drives utilities and independent power producers to operate heat and power plants as profit centers. In order to keep the economic margins on the credit side, the preferred measures have been to improve the electrical efficiency through changes in the hardware and boost the overall efficiency through e.g. LÄS MER

  5. 5. Simulating conditions for combined heat and power in the Swedish district heating sector

    Författare :David Knutsson; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; System analysis; Combined heat and power; Tradable green certificates; District heating; Tradable emission permits;

    Sammanfattning : The most important issues in the European energy sector today are how toincrease competitiveness on the energy markets, reduce both CO2 emissions anddependence on imported fuels. These issues are also important aspects of Swedish energypolicy. In Sweden, the district heating (DH) sector has commonly been used to achieveSwedish energy policy goals. LÄS MER