Sökning: "combined heat and power"
Visar resultat 1 - 5 av 150 avhandlingar innehållade orden combined heat and power.
1. Combined heat and power plant flexibility - Technical and economic potential and system interaction
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
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
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
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
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