Thermodynamics of Energy Conversion

Faculteit Science and Engineering
Jaar 2021/22
Vakcode WMME018-05
Vaknaam Thermodynamics of Energy Conversion
Niveau(s) master
Voertaal Engels
Periode semester I b
ECTS 5
Rooster rooster.rug.nl

Uitgebreide vaknaam Thermodynamics of Energy Conversion
Leerdoelen The student is able to evaluate the thermodynamic performance of various conversion processes and systems by applying the exergy concept and to identify ways to reduce overall exergy losses of frequently applied processes and systems.

More specifically, the student must be able to:
1. determine the exergy values, including chemical exergy, of fluid mixtures and fuels
2. determine exergy losses and exergy efficiencies of basic processes like fuel conversion (combustion, gasification, reforming), heat transfer, expansion and compression processes and to present exergy losses in property diagrams and value diagrams
3. determine fluid properties of pure components as well as binary fluids from property diagrams and to present the processes and cycles in property diagrams of the considered fluids
4. identify thermodynamic losses (exergy losses) of processes that take place in the main equipment of conventional power plants, like boiler, piping, steam turbine, condenser, feedwater heaters and pumps and to explain how these losses are affected by the selected steam parameters and alternative system configurations
5. identify the thermodynamic losses (exergy losses) of gas turbine cycles (open cycles and closed cycles) and to explain how these losses are affected by the selected design parameters (turbine inlet
temperature and pressure ratio) and alternative system configurations (intercooling, recuperation and reheat)
6. explain how combined cycle plants can reduce overall exergy losses in comparison with steam-power-plants and gas-turbine cycles and to show the effects of multiple pressure steam generation and supplementary firing
7. explain how and under what circumstances combined heat and power generation (CHP) can reduce overall exergy losses in comparison with separate generation of heat and power by applying value diagrams and power to heat matrices
8. describe the processes that occur in various types of fuel cells under development and to determine the power that can be obtained from a reversible fuel cell and indicate the losses that will occur in fuel cell systems
9. describe the processes that occur in refrigeration and heat pump systems
10. describe the processes that occur in new and renewable energy systems (Biomass, Solar Thermal, Geothermal and CO2 capture systems)
Omschrijving Course Contents
• Short recapitulation of the fundamentals of engineering thermodynamics: first law, energy balance of closed and open systems, second law, entropy and irreversibility.
• Specific thermodynamic properties of fluids: properties of water and steam, properties of ideal gas.
• Extended definition of exergy and environment. Chemical exergy.Exergy of fuels. Exergy efficiencies.
• Value diagrams. Application for heat exchanging equipment and combustion processes.
• Exergy losses of basic processes: fuel conversion, heat transfer, turbines, compressors.
• Exergy analysis and optimisation of conventional power stations (boiler/steam cycle): boiler: air preheating, steam conditions, feed-water temperature; steam cycle: selection of working fluid, friction losses in boilers, losses in condenser and piping, feed-water-pump, extraction feed-water heating.
• Gas-turbine processes, losses and optimization: closed cycle GT process: pressure ratio, turbine inlet temperature, cycle configuration (intercooling, recuperation, reheat); open cycle GT process: cycle configuration, value diagram; combined cycle systems: exergy losses HRSG, multiple pressure steam cycles, supplementary firing;
• Combined heat and power production (CHP): thermodynamic principle of CHP, evaluation criteria, applications, power to heat matrix.
• Fuel cells: calculation of reversible power and reversible cell voltage, effect of irreversibilities on cell performance, Nernst equation and some characteristics of SPFC (PEMFC), MCFC and SOFC, exergy losses in fuel cell systems.
• Refrigeration cycles and heat-pumps: properties of working fluids, processes with mixtures, refrigeration and heat-pump processes.
• Introduction to thermodynamics of new and renewable energy systems. Biomass, Solar Thermal, Geo Thermal and CO2 capture systems etc.
Uren per week
Onderwijsvorm Hoorcollege (LC)
Toetsvorm Schriftelijk tentamen (WE)
(Pass mark: 60 points out of 100)
Vaksoort master
Coördinator Prof. Dr. A. Purushothaman Vellayani
Docent(en) Prof. Dr. A. Purushothaman Vellayani ,ir. T. Woudstra
Verplichte literatuur
Titel Auteur ISBN Prijs
Thermodynamica voor energiesystemen. J.J.C. van Lier, N. Woudstra 90-407-2037-1
Fundamentals of Engineering Thermodynamics. Moran, M.J., Shapiro, H.N. 0 471 97960 0
Entreevoorwaarden
Opmerkingen
Opgenomen in
Opleiding Jaar Periode Type
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