DE5301 – Thermodynamics and Heat Transfer
Thermodynamics and Heat Transfer
To develop a sound basic knowledge of thermodynamic principles - including gas laws, measurement of pressure and temperature, mass and energy conservation and energy sources in the New Zealand context - and the mechanisms of heat transfer including the uses of heat exchangers
- Directed hours
- Self directed hours
- Total learning hours
- Learning Outcomes
- 1.Demonstrate an understanding of thermodynamics principals for temperature, pressure, gas laws, thermal expansion, conservation of energy, change of phase, heating and thermal efficiency.
2.Apply thermodynamics principals to practical applications for refrigeration, heat exchanger, and solar collectors.
3.Calculate rates of heat transfer through multiple layers and combined modes.
4.Evaluate and compare the sources of energy in NZ including sustainability concepts.
- Temperature and pressure measurement, scales, conversions, transducers and their calibration, Zeroth law.
Gas laws and gas processes, solve P,V,T, Q W U
Thermal expansion. differential expansion of two materials, applications
Mass and energy conservation, closed and open systems.
Change of phase Ice/water/steam tables including superheated steam
Heating of solids, liquids and gases, specific heat.
Thermal efficiency. m.CV, Q, W
Heat pumps/Refrigeration. Descriptive only: Vapour compression vapour absorption, schematic
Heat exchangers - common types in use, their construction, uses and performance. calculation of LMTD, heat transfer, surface area, NTU effectiveness
Heat Transfer. Transfer mechanisms, multi-layer conduction (flat and cylinders), convection, radiation, combined Conduction/convection/radiation.
Insulation properties and systems.
Energy sources, generation in NZ, solar intensity, solar water heater types. Passive solar applications. Environmental sustainability.
- Assessment Criteria
- Tests 20
Assignments, Laboratory (Practical) 30