# 3170.22 - Thermodynamics

Course number
3170.22
Title
Thermodynamics
ECTS
7.5
Prerequisites
Mechanics, Mathematics 1
Purpose
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.
Content
• 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.
Examination
External
Marking scale
7-
Bibliography
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.
Contact
Jari í Hjøllum