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22-Mec-B6 Advanced Fluid Mechanics: December 2017

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Hydro Turbines
  2. Question 2 Hydro Turbine Model
  3. Question 3 Curtis Type Impulse Turbine
  4. Question 4 Pump Design
  5. Question 5 Compressor First Stage
  6. Question 6 Turbine Blade Characteristics
  7. Question 7 Gas Turbine Number of Stages
  8. Question 8 Pump Characteristics

Start with Question 1 →

Paper format. 16-Mec-B6 Fluid Machinery, National Examinations December 2017 — three hours, closed book. Section A is calculative (Questions 1–5) and Section B descriptive (Questions 6–8); the rubric asks for four of Section A and two of Section B, six questions of ten marks each for a sixty-mark paper. Reference data for individual questions are supplied as Attachments (pages 10–17) and a general nomenclature/constants/equations sheet occupies pages 18–22. All eight questions are solved here, because the set is a study resource rather than a timed attempt.

Reference texts. S. L. Dixon & C. A. Hall, Fluid Mechanics and Thermodynamics of Turbomachinery, 7th ed.; R. K. Turton, Principles of Turbomachinery, 2nd ed.; H. Cohen, G. F. C. Rogers & H. I. H. Saravanamuttoo, Gas Turbine Theory, 6th ed.; F. M. White, Fluid Mechanics, 8th ed.; R. W. Fox, A. T. McDonald & P. J. Pritchard, Introduction to Fluid Mechanics, 9th ed.; Y. A. Çengel & M. A. Boles, Thermodynamics: An Engineering Approach, 9th ed. Constants are those printed on page 19 of the paper (g = 9.81 m/s², ρwater = 1000 kg/m³, ρair = 1.21 kg/m³ at 15 °C and 1.19 kg/m³ at 20 °C, cp = 1.005 kJ/kg°C, cv = 0.718 kJ/kg°C, patm = 100 kPa, pvapour = 1.71 kPa at 15 °C). Every reference equation quoted below is one of those printed on pages 20–22, and is identified as such where it is first used.

Subject note. Page 1 of the examination reads 16-MEC-B6 FLUID MACHINERY, and every question is a turbomachine question. The solutions below answer the paper as printed. The three Canadian hydro stations named in Questions 1 and 2 (Mactaquac, Churchill Falls) are used by the examiner as settings for stated “hypothetical measurements”; the numbers solved here are the paper's, not plant records.