Zbigniew Buryn

Conversion of Coal-Fired Power Plants to Cogeneration and Combined-Cycle

1. Introduction.- 2. Selection of Optimal Heating Structures for Modernization of Coal-Fired Power Stations to Cogeneration.- 3. Mathematical Model of a Power Unit with Rated Capacity of 370 MW After Its Modernization to Cogeneration and Combined-Cycle.- 4. Algorithm for the Calculation of an Optimum Structure of Heat Exchangers for the Modernization of a 370 MW Power Unit to Combined Heat and Power Cycle.- 5. Testing Calculations of the Mathematical Model of a Power Unit.- 6. Thermodynamic Analysis of a Combined Heat and Power Unit Using Extractions A2, A3 and Crossoverpipe IP-LP for Heater Supply.- 7. Economic Efficiency of a Power Unit Adapted to Cogeneration.- 8. Technical and Economical Effectiveness of Modernization 370 MW Power Unit Repowered by Gas Turbine with Their Modernization to Cogeneration.- 9. Technical and Economical Effectiveness of 370 MW Power Unit Repowered by Gas Turbine in Parallel System.- 10. Summary and Final Conclusions.

Investment Strategy in Heating and CHP

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Continuous Time Methodology and Mathematical Models in Search of Optimum Investment Strategy in Thermal Plants and Combined Heat and Power Plants

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Technical and Economical Effectiveness of Modernization 370 MW Power Unit Repowered by Gas Turbine with their Modernization to Cogeneration

This chapter presents an original continuous time methodology and mathematical models applied for analyzing the effectiveness of technical and economic aspects of the operation of heat and electricity sources.

Continuous Time Methodology and Mathematical Models for the Analysis of the Market Value of Thermal Plant and Heat and Power Plant and the Value of the Market Supplied by Them

This chapter presents thermodynamic and economic analysis of electric power unit with the rated capacity of 370 MW operating in a combined-cycle, which is repowered by a gas turbine in a parallel system with dual-pressure heat recovery steam generator and concurrently working in a cogeneration for steam feeding from extractions A2 and A3 in the steam turbine and LP-IP crossoverpipe. These calculations apply the mathematical model of the unit presented in Chap. 3 and Stodola-Flugel turbine passage equations for the steam turbine from Chap. 4, which illustrate the variable concentration of steam stream passing through it as a result of repowering the unit by a gas turbine and variable steam extraction for district heating purposes. In the exemplary calculations referred to an assumption is made about the value of a thermal power and its qualitative regulation as presented in Chap. 6. The economic analysis applies the methodology in Chap. 2.

Continuous Time Methodology and Mathematical Model for Analysis of Technical and Economic Effectiveness of Modernizing a Thermal Plant and Combined Heat and Power Plant

This chapter presents an original continuous time methodology and mathematical models applied for the analysis of the market value of a thermal plant and combined heat and power plant and the value of the market supplied by them.

Strategy of investment in electricity sources--Market value of a power plant and the electricity market

This chapter presents an original continuous time methodology and mathematical model for analysis of technical and economic effectiveness of modernizing an existing thermal plant and combined heat and power plant.

Technical and Economical Effectiveness of 370 MW Power Unit Repowered by Gas Turbine in Parallel System

This paper reports the results of the investment strategy analysis in different electricity sources. New methodology and theory of calculating the market value of the power plant and value of the electricity market supplied by it are presented. The financial gain forms the most important criteria in the assessment of an investment by an investor. An investment strategy has to involve a careful analysis of each considered project in order that the right decision and selection will be made while various components of the projects will be considered. The latter primarily includes the aspects of risk and uncertainty. Profitability of an investment in the electricity sources (as well as others) is offered by the measures applicable for the assessment of the economic effectiveness of an investment based on calculations e.g. power plant market value and the value of the electricity that is supplied by a power plant. The values of such measures decide on an investment strategy in the energy sources. This paper contains analysis of exemplary calculations results of power plant market value and the electricity market value supplied by it.

Thermodynamic Analysis of a Combined Heat and Power Unit Using Extractions A2, A3 and Crossoverpipe IP–LP for Heater Supply

This chapter presents thermodynamic and economic analysis of electric power unit with the rated capacity of 370 MW operating in a combined-cycle which is repowered by a gas turbine in a parallel system. This analysis takes into consideration the mathematical model of the power unit found in Chap. 3 and Stodola–Flugel turbine passage equations for the steam turbine from Chap. 4, which illustrate the variable concentration of steam stream passing through it as a result of repowering the unit by a gas turbine with a heat recovery steam generator. In the exemplary calculations referred to an assumption is made about the value of gas turbine just as in Chap. 8 and the use of dual pressure heat recovery steam generator. The analysis of the economic efficiency of repowering applies the method presented in Chap. 2.

Testing Calculations of the Mathematical Model of a Power Unit

This chapter presents thermodynamic analysis of the a electric power unit with the rated capacity of 370 MW operating in cogeneration under the assumption of multitude of alternatives of heaters being fed from extractions A2 and A3 of the low-pressure section of the steam turbine and LP–IP crossoverpipe. This analysis takes into consideration feeding heaters from a single and two power units. In addition, the calculations involve a case when the power unit is restored to its original capacity prior to adaptation to cogeneration and one without compensation.