6. The compression ratio of an OTTO cycle is 9. If the initial pressure is 150 kPa, determine the final pressure. A. 1 251.10 kPa B. 4 251.10 kPa C. 2 251.10 kPa D. 3 251.10 kPa
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Convert the initial pressure (150 kPa) to psi: 150 kPa = 150 x 10^3 psi Show more…
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An Otto cycle has a compression ratio of 9.5. The air is at 100 kPa, 17°C, and 600 cm³ prior to the compression stroke. The temperature at the end of isentropic expansion is 800 K. Using constant specific heat, calculate the following: 1.) Highest temperature in the cycle a. 1763 K b. 1969 K c. 1654 K d. 1892 K 2.) Thermal Efficiency a.) 59.4% b.) 47.1% c.) 62.8% d.) 36.7% 3.) Mean Effective Pressure a.) 609 kPa b.) 718 kPa c.) 547 kPa d.) 425 kPa
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