DE5301                             THERMODYNAMICS AND HEAT TRANSFER

Level 5                                             Credits 15                                            Version July 2010

LEARNING TIME

RECOMMENDED PRE-REQUISITE

DE4101 Engineering Fundamentals

DE4102 Engineering Mathematics

DE4103 Technical Literacy

RECOMMENDED CO-REQUISITE

Nil

AIM/PURPOSE

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.

LEARNING OUTCOMES

On successful completion of this course, the student should be able to:

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 air compressors, refrigeration, heat exchanger, and solar collectors.

3.            Calculate rates of heat transfer through multiple layers and combined modes.

4.            Evaluate and compare the sources on energy in NZ.

INDICATIVE CONTENT

• Temperature and pressure measurement, scales, conversions, transducers and their calibration.
• Gas laws and gas processes, solve P,V,T, Q W deltaU
• Thermal expansion. differential expansion of two materials, applications
• Mass and energy conservation, closed and open systems.
• Change of phase Ice/water/steam at pressures 0-20 bar(abs), steam tables
• Heating of solids, liquids and gases, specific heat.
• Thermal efficiency. thermal efficiency of motors
• Air Compressors, types, FAD, multi staging, intercooling, vol efficiency work and power.
• Refrigeration, Vapour compression using P-H charts and vapour absorption description only.
• Heat exchangers – common types in use, their construction, uses and performance. calculation of LMTD, heat transfer, surface area
• 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.