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Elements and Performance Criteria

  1. Calculate heat mixtures involving water equivalent, change of phase, and feed heating
  2. Determine fluid properties of steam
  3. Calculate boiler efficiency and boiler water density
  4. Determine steam turbine velocity
  5. Calculate calorific value and the air fuel ratio for solid and liquid fuels
  6. Calculate thermal expansion
  7. Apply gas law equations
  8. Calculate gas conditions, work and thermal efficiency of internal combustion engines
  9. Perform calculations related to refrigeration and air conditioning cycles
  10. Solve heat transfer problems involving flat plates and thin cylinders
  11. Solve problems related to single and multi stage air compression
  12. Perform calculations related to engine power and heat balances

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Key terms include:

enthalpy of fusion

evaporation

sensible heat

transfer of heat energy

Processes include one or more of the following:

adiabatic

isothermal

polytropic

Fluid properties include one or more of the following:

density

dryness faction

enthalpy of water

pressure

saturated steam

specific volume

superheated steam

temperature

Forms of heat transfer must include:

conduction

convection

radiation


Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least one occasion and include:

applying relevant work health and safety/occupational health and safety (WHS/OHS) requirements and work practices

assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices

effectively communicating knowledge and ideas through verbal, written and visual means

identifying and applying appropriate laws and principles and relevant mathematical formulas and techniques to solve basic problems related to marine engineering thermodynamics

identifying and interpreting numerical and graphical information, and performing basic mathematical calculations related to marine engineering thermodynamics, such as gas expansion and contraction, heat transfer, and thermal efficiency

identifying, collating and processing information required to perform basic calculations related to marine engineering thermodynamics

reading and interpreting written information needed to perform basic calculations related to marine engineering thermodynamics.


Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

air compressor:

components

faults and hazards

first law of thermodynamics

operating cycle of reciprocating air compressors

performance characteristics

property diagrams

types

uses

working principles of reciprocating compressors

basic principles of marine engineering thermodynamics

enthalpy

expansion and compression of gases

gas laws

internal combustion engines:

second law of thermodynamics

heat engine cycles

operating principles of two stroke and four stroke internal combustion engines

performance characteristics

improvements

principles of heat transfer and refrigeration

refrigeration and air conditioning cycles

steam plants

System International (SI) units

thermal efficiency calculations

thermodynamic principles

WHS/OHS requirements and work practices