Abstract
One of the possible solution for conventional coal-fired heat sources of district heating systems is repowering with a cogeneration of heat and power) unit. Thermal and economic optimization of the such modernization is the subject of the paper. The total capacity of the existing heat generating plant reaches 210 MW and the generated heat is delivered to the city consuming central heating and hot domestic water. The optimization of the cogeneration system (regarding unit size) was aimed at finding a solution which is an optimal in terms of the economic efficiency. The optimal size of gas turbine was found and it has been proven that the retrofitting coal-fired district heating source with a gas turbine cogeneration unit has technical and economic justification and always leads to the energetic and ecological effects. However, the optimal size of the unit is highly sensitive to electricity and natural gas prices.
| Original language | English |
|---|---|
| Pages (from-to) | 885-895 |
| Number of pages | 11 |
| Journal | Energy Conversion and Management |
| Volume | 149 |
| DOIs | |
| Publication status | Published - 1 Oct 2017 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy -
SDG 9 Industry, Innovation, and Infrastructure
Keywords
- Cogeneration
- District heating
- Gas turbine
- Technical and economic optimization
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Nuclear Energy and Engineering
- Fuel Technology
- Energy Engineering and Power Technology
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