A hybrid vehicle has SI engine that operates on an air standard four-stroke Miller cycle. The...

   

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A hybrid vehicle has SI engine that operates on an air standard four-stroke Miller cycle. The intake valves close later, resulting cycle 6'-7-8-7-2-3-4-5-6 as shown in the figure below. The cylinder conditions are 45 C and 130 kPa at the start of the compression. The maximum temperature during the cycle is 3600 K. Compression ratio rc = 9.5, and expansion ratio re = 12. Determine (i) (ii) Heat input during the combustion process. [kJ/kg] Work produced during expansion stroke. [kJ/kg] (iv) Work consumed during compression stroke. [kJ/kg] (iii) Temperature [K], pressure [kPa], and specific volume [m/kg] at state points 7, 2, 3, and 4. Pressure (P) Po 2 6' 6 3 TDC 7 Specific volume, V 4 8 BDC (b) Describe what a hybrid vehicle is and Draw a schematic diagram of parallel hybrid architecture. A hybrid vehicle has SI engine that operates on an air standard four-stroke Miller cycle. The intake valves close later, resulting cycle 6'-7-8-7-2-3-4-5-6 as shown in the figure below. The cylinder conditions are 45 C and 130 kPa at the start of the compression. The maximum temperature during the cycle is 3600 K. Compression ratio rc = 9.5, and expansion ratio re = 12. Determine (i) (ii) Heat input during the combustion process. [kJ/kg] Work produced during expansion stroke. [kJ/kg] (iv) Work consumed during compression stroke. [kJ/kg] (iii) Temperature [K], pressure [kPa], and specific volume [m/kg] at state points 7, 2, 3, and 4. Pressure (P) Po 2 6' 6 3 TDC 7 Specific volume, V 4 8 BDC (b) Describe what a hybrid vehicle is and Draw a schematic diagram of parallel hybrid architecture.

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Solutions T 7 T 8 45c 343K P 7 P 8 130kpa M max 3600k r c 95 r e 12 a Calcu... View the full answer