Q6: An ideal Otto cycle has a compression ratio of (8)at the beginning of thecompression process, air is at 95KPa and 27 °C and (750kj/Kg) of heat istransferred to air during the constant volume (heat addition process)determine (a) The pressure and temperature at the end of heat addition process(b) The net work output. (c)The thermal efficiency of the cycle. (d) The meaneffective pressure for the cycle.

Step 1:Given the information:The ratio of compression (r=8)Initial pressure…

Answered: Q6: An ideal 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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IMPORTANT: For problem solving items, start your solution by presenting the cycle in P-v and T-s diagrams. Label all points and mark the process where the heat is added and rejected. Also mark the area showing the net work of the cycle. The parameters of the initial state of one kilogram of air in the cycle of an internal combustion engine are o.095 MPa and 65 deg.C. The compression ratio is 12. Compare the values of the thermal efficiency for isobaric and isometric heat supply in the amounts of 820 kJ.
A compression ratio of 8 is achieved by using an ideal air-standard Otto cycle engine. The working fluid has a pressure of 100 kPa and a temperature of 27°C at the start of the compression process, and the constant volume heat addition process supplies 800 kJ/kg of heat to the working fluid. What are the (a )the temperature, volume and pressure of the air at the end of each process (in K, m3 and kPa) (b) the net work output/cycle [kJ/kg], and (c) the thermal efficiency of this engine cycle
An air-standard Otto Cycle with a compression ratio of 9.0 has air entering at 101 kPa and 27 deg C. There is an input of 1 800 kJ/kg of heat during the heat addition process. Determine maximum temperature in Fahrenheit, thermal efficiency and net work (k]/kg).
2. With a compression ratio of 8, an Otto cycle is compressing air with 100,000 Pa at 25 degrees Celsius. It then adds 1400 kJ/kg of heat. Solve for the temperature and pressure at each state point, the thermal efficiency, and the MEP.
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Inideal constant volume cycle, the pressure and temperature at the beginning of compression are 97 kPa and 5( is supplied during the cycle is 930 ki/kg of working fluid. Calculate: the maximum temperature attzined in the cycle respectively. The volume ratio is 8. The heat
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A gasoline internal combustion engine can be modeled by an ideal Otto cyclethat has a compression ratio of 8.91. At the beginning of the compression process (state 1), airis at 100 kPa and 300 K. The heat transfer into the air during the constant-volume heat additionprocess (state 2 to 3) is 693.08 kJ/kg. Note: Consider constant specific heats of air at 300 K. 1 – Find the temperature in K before heat additionprocess ;A) 660 KB) 680 KC) 700 KD) 720 K 2 – Find the maximum temperature in K during thecycle A) 1625 KB) 1655 KC) 1685 KD) 1715 K3 – Find the maximum pressure in MPa during the cycle A) 4 MPaB) 4.5 MPaC) 5 MPaD) 5.5 MPa4 – Find the temperature in K before the heat rejection processA) 660 KB) 700 KC) 740 KD) 780 K
Hello Sir,Good Night.I have a question in my homework related thermodynamics lesson.The following below is my question. Please advice, thank you
Let us consider a standard air cycle with variable specific heats, where 0.003 kg of air is added as the working fluid. The complete cycle is composed of:1-2 Addition of heat at v=cte of 95 kPa and 17°C up to 380 kPa.2-3 Isentropic expansion up to 95 kPa.3-1 Heat rejection at P=cte up to the initial state. Determine the net work done by the cycle and the thermal efficiency.
A four-cylinder compression-ignition engine with a compression ratio of 18 haspistons with a bore of 9 cm and a stroke of 10 cm. The air pressure at the beginning ofcompression is 98 kPaa, and the temperature is 37 oC. The engine may be modeled bythe air-standard Diesel 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.

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