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MELE · Subject 1 of 6

Power Plant Engineering

Fuels and combustion, steam, internal-combustion, and gas-turbine plants, plant economics, and renewable sources, as tested on the Industrial and Power Plant paper.

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  1. 1Study each lesson6 lessons, each with its own quiz
  2. 2Section practice test3 sets over the whole subject
  3. 3Prove it on the mockTimed, scored like the real exam

What this subject covers

  • Fuels and combustion: heating values and air-fuel ratio
  • Steam power plants: the Rankine cycle, boilers, and steam generation
  • Internal combustion engines: the Otto and Diesel cycles and engine performance
  • Gas turbine and combined-cycle plants (the Brayton cycle)
  • Variable load operation and power plant economics
  • Hydroelectric, geothermal, nuclear, and renewable power plants

Study lessons

  1. 1

    Fuels and CombustionFree

    How to read proximate and ultimate fuel analyses, compute higher and lower heating values, find the theoretical air-fuel ratio and excess air, and account for the products of combustion and the Orsat flue-gas analysis the MELE tests directly.

    15 min
  2. 2

    Steam Power Plants and the Rankine CycleFree

    The ideal Rankine cycle and its four processes, how reheat and regeneration raise efficiency, boiler steam generation and boiler efficiency, steam properties, condensers, and feedwater heaters, worked in SI units for the MELE.

    15 min
  3. 3

    Internal Combustion EnginesFree

    The Otto, Diesel, and Dual air-standard cycles, compression ratio and air-standard efficiency, indicated and brake power, mean effective pressure, thermal and mechanical efficiency, and specific fuel consumption, worked in SI units for the MELE.

    15 min
  4. 4

    Gas Turbine and Combined-Cycle PlantsFree

    The Brayton cycle and its pressure ratio, how regeneration, intercooling, and reheat improve it, the back-work ratio, and how gas and steam plants combine, all worked in SI units for the MELE.

    15 min
  5. 5

    Variable Load and Power Plant EconomicsFree

    The load curve and load-duration curve, load, capacity, demand, diversity, and plant-use factors, the cost of generated power, and plant depreciation, worked in SI units for the MELE.

    15 min
  6. 6

    Hydro, Geothermal, Nuclear, and Renewable PlantsFree

    Hydroelectric power and heads, pumped storage, geothermal plant types, nuclear fission fundamentals, and solar and wind and other non-conventional sources, worked in SI units for the MELE.

    15 min

Section practice test

3 test sets covering the whole Power Plant Engineering section, 90 original questions with explanations. After you finish the lessons above, prove it here. Randomized every run.

Power Plant Engineering: section test A

Item 01 / 30 · Score 0

Factor of evaporation

A boiler evaporates water into steam of enthalpy 2,760 kJ/kg from feedwater at 420 kJ/kg. Taking the latent heat from and at 100 degrees C as 2,257 kJ/kg, the factor of evaporation is closest to: