Q4 An air standard Otto cycle has a compression ratio of (8),at the start ofcompression stroke, the temperature is (300K) and the pressure is (100KPa), if themaximum pressure in the cycle is (3MPa) determine (a) the heat input per Kg.(b) The cycle efficiency. (c) The mean effective pressure.

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Answered: Q4 An air standard Otto cycle has a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Q3: An Otto cycle has a compression ratio of (8.5) at the beginning of the com. Press ion stroke, the temperature is (300K) and the pressure is (90KPa). If the heat input is (800Kj) and the maximum temperature in the cycle is 1100K, determine (a) The mass of air in the cycle. (b)The heat rejection. (c) thermal efficiency. (d) The mean effective pressure.
DUAL CYCLE Problem. Please show your solution completely.
For an engine working on the ideal Dual cycle, the compression ratio is 10 and the maximum pressure is limited to 70 bar. If the supplied is 1680 kJ/kg, find tlerressures and temperatures at the vaae the cycle ane kJ yele efficiency. The pressure and temperature of air at the commencemelil Of compression are 1 bar and 100 °C respectively. Assume Cp = 1.004 kJ/kg K and Cy .e «alient points of 0.717 kJ/kg K for air.
A four-cylinder spark-ignition engine with a compression ratio of 8 has a pistonswith a bore of 9 cm and a stroke of 10 cm. The air pressure at the beginning of thecompression is 98 kPa, and the temperature is 37 oC. The engine may be modeled by theair-standard Otto cycle. The maximum cycle temperature is 1700 oK. If the engineproduces 75 kW of power, determine a) the heat supplied per cylinder; b) the thermalefficiency; and c) the rpm required.
Consider an air standard Diesel cycle. At the beginning of compression, the temperature is 300 K and the pressure is 101.35 kPa. If the compression ratio is 15 and during the process 1860 kJ/kg of air as added as heat, calculate the following: The maximum cycle pressure a. 3726 kPa b. 1109 kPa The maximum cycle temperature a. 1680 K b. 2740 K The thermal efficiency of the cycle a. 55% b. 50% .The MEP a. 2600 kPa b. 800 kPa c. 5890 kPa d. 4495 kPa c. 60% d. 45% c. 3300 K d. 4050 K c. 1300 kPa d. 2900 kPa
A compression ignition engine has a compression ratio of 16:1, and at the beginning of the isentropic compression, the temperature is 15o C and the pressure is 0.1 MPa. Heat is added until the temperature at the end of the constant pressure process is 1480o C. a.)Determine the cycle efficiency (in %) b.)Calculate for the mean effective pressure (in kPa) c.) Determine the heat added per kg of air.
In an ideal Diesel Cycle, the temperature of the air at the beginning of compression is 320 K and the pressure is 100 kPa. The maximum temperature of this cycle with isotropic compression ratio of 15 ; A-)2500K B-)2000K Find the temperatures and pressures that are not given according to the situation, the heat given for 1kg of air, the net work and the average effective pressure. Draw the diagrams P-v and T-S.
In an air standard Otto cycle, the clearance volume is 12 % of the displacement volume. What is the thermal efficiency?
The beginning of the compression stroke for an air standard Diesel cycleis at 98 kPa and 26oC. For a maximum cycle temperature of 2550oC anda compression ratio of 18, find (a) thermal efficiency (b) mep.
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We wish to model a gasoline engine for an automotive application with the ideal Otto cycle. The compression ratio is 10. The heat added is 2965 kJ/kg. For a 4 stroke engine, what is the engine displacement in liters to produce 500 hp at a rotational speed of 5000 rpm. The inlet pressure is 100 kPa and the inlet temperature is 27 deg C Group of answer choices 4.3 L 5.0 L 5.7 L 2.2 L
Please provide a clear solution, thanks.

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Q4 An air standard Otto cycle has a compression ratio of (8),at the start of compression stroke, the temperature is (300K) and the pressure is (100KPa), if the maximum pressure in the cycle is (3MPa) determine (a) the heat input per Kg. (b) The cycle efficiency. (c) The mean effective pressure.