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Doctors Medicines MCQs Q&A

  1. Constant volume and Constant pressure compression
  2. Constant pressure and Isentropic compression
  3. Isentropic and Adiabatic compression
  4. Constant volume and Isentropic compression
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1 Answers

Option 1 : Constant volume and Constant pressure compression

Explanation:

Dual Cycle

  • The Dual Cycle also called a mixed cycle or limited pressure cycle is a compromise between Otto and Diesel cycles.
  • The dual cycle is a thermodynamic cycle that combines the Otto cycle and the Diesel cycle.
  • In this cycle, the heat addition occurs partly at constant volume and partly at constant pressure.

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Different processes in the dual cycles are given below:

  1. Process 1-2: Reversible adiabatic compression (Isentropic compression)
  2. Process 2-3: Constant volume heat addition.
  3. Process 3-4: Constant pressure heat addition.
  4. Process 4-5: Reversible adiabatic expansion (Isentropic expansion)
  5. Process 5-1: Constant volume heat rejection.
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