I am lost ces!Required informationA four-cylinder, four-stroke, spark-ignition engine operates on the ideal Otto cycle with a compression ratio of 11 and a totaldisplacement volume of 1.8 L. The air is at 90 kPa and 50°C at the beginning of the compression process. The heat input is1.1 kJ per cycle per cylinder. The gas constant of air is R = 0.287 kJ/kg-K and use constant specific heats with cv=0.821kJ/kg-K, cp = 1.108 kJ/kg-K, and k= 1.35.Determine the maximum temperature and pressure that occur during the cycle. (You must provide an answer before moving on to thenext part.)The maximum temperature during the cycle isThe maximum pressure during the cycle isK.kPa.

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Answered: A four-cylinder, four-stroke,…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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An engine operates on the air-standard Otto cycle. The conditions at the start of compression are 27°C and 100 kPa. The heat added is 1840 kJ/kg. The compression ratio is 8. Determine the temperature and pressure at the end of each process in the cycle, the thermal efficiency, and the mean effective pressure.
1-) In an ideal otto cycle with a compression ratio of 9, the starting temperature of the cycle is 17 ° C pressure 100 kPave, 800 kJ / kg heat is given to the air in the cycle. Accordingly, of the cycle; a) Max temperature and pressure? B) Net workic) Thermal efficiency d) Calculate the average effective pressure e) Draw the T-S and P-V diagrams.
Draw and label the P-V and T-S diagrams. A four-cylinder two-stroke 2.4-L diesel engine that operates on an ideal Diesel cycle has a compression ratio of 22 and a cutoff ratio of 1.8. Air is at 70°C and 97 kPa at the beginning of the compression process. Using the cold-air standard assumptions (k=1.4), determine how much power the engine will deliver at 3500 rpm.
If the isentropic compression ratio of a Carnot cycle is 5 and the lower temperature limit of the cycle is 25degree C, determine the power that the engine can produce if the heat added amounts to 45kW. Assume that the cycle is an air standard cycle.
A Brayton cycle with an air-powered regenerator has a pressure ratio of 8. The lowest and highest temperatures of the cycle are 310 K and 1150 K. The adiabatic efficiencies of the compressor and turbine are 75% and 82%, respectively. The efficiency of the regenerator is 65%. Draw the T-s diagram of the cycle. a) The temperature of the air at the turbine exit, b) the net work of the cycle, c) Calculate the thermal efficiency of the cycle. Consider the variation of specific heats with temperature.
The compression ratio of an air-standard dual cycle is 12 and a cutoff ratio of 1.3. The pressure ratio during the constant-volume heat addition process is 1.5. This cycle is operated at 100 kPa and 20°C at the beginning of the compression. By using the constant specific heats at room temperature, evaluate; (1) the maximum gas pressure: (i) the maximum gas temperature, (n) amount of heat added; and (iv) thermal efficiency.
A compression ignition engine operates on a diesel cycle has a compression ratio of 20 and uses air as the working fluid, the cut off ratio is (1.5). The air at the beginning of the compression process is at 100 kPa and 30 C. If the maximum temperature of the cycle is 2000 ºC. Under cold air standard assumptions at room temperature. a. Describe with the aid of diagrams the operational sequence of four stroke compression ignition engines. b. Explain the mechanical efficiency for an ideal diesel cycle of two and four stroke engines c. Explain the relationship between thermal efficiency (?), compression ratio (r), and cut-off ratio (rc).d. Determine the net-work output, the thermal efficiency, and the mean effective pressure for the cycle
A compression ignition engine operates on a diesel cycle has a compression ratio of 20 and uses air as the working fluid, the cut off ratio is (1.5). The air at the beginning of the compression process is at 100 kPa and 30 C. If the maximum temperature of the cycle is 2000 ºC. Under cold air standard assumptions at room temperature. a. Describe with the aid of diagrams the operational sequence of four stroke compression ignition engines. b. Explain the mechanical efficiency for an ideal diesel cycle of two and four stroke engines c. Explain the relationship between thermal efficiency (?), compression ratio (r), and cut-off ratio (rc).
At the beginning of the compression process of air-standard Diesel cycle operating with a compression ratio of 18, the temperature is 300 K and the pressure is 0.1 MPa. The cut-off ratio for the cycle is 2 and the mass flow rate in the system is 1900 kg/hr. Cp=1.006 kJ/kg K Cv= 0.717 kJ/kg K 1) calculate the thermal efficiency of the cycle in %? 2) which formula should be used to determine the thermal efficiency of the cycle ?
An internal combustion engine operates in an air-standard dual cycle. The air is at 110 kPa and 300K during the start of the isentropic compression. The maximum pressure and temperature are 6890 kPa and 2750K, respectively. If the compression ratio is 13, determine the cycle work per kg, the heat added per kg, the cycle thermal efficiency, and the mean effective pressure. Draw the P-V and T-S diagrams.
The compression ratio of an Otto cycle working under air standard conditions is 8.0. Determine the peak temperature of the cycle if the heat supplied on the cycle is 3500kJ/kg of working ingredient.
The compression ratio of an air-standard dual cycle is 12 and a cutoff ratio of 1.3. The pressure ratio during the constant-volume heat addition process is 1.5. This cycle is operated at 100 kPa and 20°C at the beginning of the compression. By using the constant specific heats at room temperature, determine; the maximum gas pressure; the maximum gas temperature; amount of heat added; and thermal efficiency.

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