Chemical Engineering – Thermodynamics course Topic; Gas cycles Assignment The intake temperature and pressure of diesel entering an engine are 27 °C and 90 KPa, respectively. At the end of the adiabatic compression stage the temperature has increased to 447°C. The beginning of the exhaustion process occurs at 1177° C and the beginning of the adiabatic expansion occurs at 1777 °C. The specific heat for the fuel is given as: cp/R= XXXXXXXXXX001538T a) Calculate the final state of the adiabatic compression process. (25 marks) b) Fill in the rest of the table. (35 marks) c) What is the work produced by the engine? (15 marks) d) Calculate the efficiency of the cycle. (15 marks) e) Calculate the variation in internal energy in each thermodynamic transformation (10 marks) State Specific Volume Pressure Temperature 1. Initial state 2. Beginning of combustion 3. End of combustion 4. Beginning of exhaustion
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