An engine is running on an airstandard dual cycle in a pistoncylinder device. Let state (1)...
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An engine is running on an airstandard dual cycle in a pistoncylinder device. Let state (1) is at the The pressure P beginning of the isentropic compression process. The volume ratio is given by, r P ratio is given by, r a) b) Finally, the compression ratio is given by, r 2 Sketch the cycle on both Pv and Ts diagrams. Prove that the thermal efficiency of the cycle is given by, rr1 nh V (4 points) (12 points) 7T (1)+7(r.1) c) Show that the thermal efficiency of the cycle approaches that of the Otto cycle when the compression ratio approaches 1.0. (2 points) d) Show that the thermal efficiency of the cycle approaches that of the diesel cycle when the (2 points) pressure ratio approaches 1.0. An engine is running on an airstandard dual cycle in a pistoncylinder device. Let state (1) is at the The pressure P beginning of the isentropic compression process. The volume ratio is given by, r P ratio is given by, r a) b) Finally, the compression ratio is given by, r 2 Sketch the cycle on both Pv and Ts diagrams. Prove that the thermal efficiency of the cycle is given by, rr1 nh V (4 points) (12 points) 7T (1)+7(r.1) c) Show that the thermal efficiency of the cycle approaches that of the Otto cycle when the compression ratio approaches 1.0. (2 points) d) Show that the thermal efficiency of the cycle approaches that of the diesel cycle when the (2 points) pressure ratio approaches 1.0. An engine is running on an airstandard dual cycle in a pistoncylinder device. Let state (1) is at the The pressure P beginning of the isentropic compression process. The volume ratio is given by, r P ratio is given by, r a) b) Finally, the compression ratio is given by, r 2 Sketch the cycle on both Pv and Ts diagrams. Prove that the thermal efficiency of the cycle is given by, rr1 nh V (4 points) (12 points) 7T (1)+7(r.1) c) Show that the thermal efficiency of the cycle approaches that of the Otto cycle when the compression ratio approaches 1.0. (2 points) d) Show that the thermal efficiency of the cycle approaches that of the diesel cycle when the (2 points) pressure ratio approaches 1.0.
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Related Book For
Thermodynamics An Engineering Approach
ISBN: 9780073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles
Posted Date:
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