HW3 F19 Solutions

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HW3 F19 Solutions
  • HW3 F19 Solutions

  • Exam (elaborations) • 10 pages • 2019
  • HW3_F19_Solutions 1 MEC 423/523 – Fall 2019 Homework 3 Solutions 1. It is desired to increase the output of a spark-ignition engine by either (1) raising the compression ratio from 10 to 12, or (2) increasing the inlet pressure from 1 bar to 1.5 bar. Using the constant volume cycle as a model for engine operation, which one of the two solutions will give: a) The highest pressure in the cycle? b) The highest efficiency? c) The higher IMEP? Assume γ = 1.3, and   = 9.3   . a) From t...
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