3170.22 - Thermodynamics

Course number
Mechanics, Mathematics 1
To give students knowledge about the fundamental laws and methods in thermodynamics and enable the student to solve idealized thermodynamical problems on both individual components and systems.
• Thermodynamic states and parameters. • Heat and work. • 1st law of thermodynamics for closed systems. • 1st law of thermodynamics for open systems, including volume work. • Energy balance for open and closed systems. • Enthalpy, equations of state and specific heat capacity. • 2nd law of thermodynamics, cycle processes, reversible and irreversible processes. • Entropy, T-s/P-v/P-h diagrams, isentropic processes, technical work, isentropic efficiency and the Carnot process. • Phase diagrams, phase shift, cycle processes and cycle processes with phase shift. • Heat transfer trough convection, conduction and radiation. • Introduction to turbines, piston engines, pumps, compressors, heat exchangers, heat/work engines and steam power systems. • Moist air processes.
Learning and teaching approaches
Lectures, problem solving, laboratory work, hand-ins (theoretical and eksperimental) and self-study (5 ECTS). Experimental project and report (2,5 ECTS).
Learning outcomes
A student who has met the objectives of the course will be able to: • Explain the fundamental laws of thermodynamics. • Describe states and processes by thermodynamic parameters. • Explain common forms of energy • Use principles of mass and energy conservation. • Apply different models, expressed by equations (ideal gas equation), tables and diagrams. • Determine a systems exchange of work and heat with the surroundings. • Describe the purpose of the most common forms of thermodynamic machines and plants. • Perform simplifications for a system, and thereby allow for thermodynamic calculations on components and systems. • Determine key thermodynamic characteristics for systems and components. • Determine air humidity and describe humidification and dehumidification processes.
Assessment method
A four-hour written examination. All materials permitted. The grade is based 30% on submissions throughout the course (15% on assignments and 15% on the report) and 70% on the final test. The mandatory experimental report, must be passed, to be eligible for the examination and reexamination.
Marking scale
University Physics with Modern Physics, by Hugh D.Young, Roger A. Freedman and A. Lewis Ford. Pearson. (Ch. 17-20), 13 Ed. or newer Bækkel Larsen, J., Christensen, P., & Elmegaard, B. (2017). Maskinteknisk Termodynamik: Grundlæggende - teori og praksisnær anvendelse. Ballerup: DTU Diplom og DTU Mekanik. 4. udg. ella nýggjari. Additional supplementary material.
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