Otto cycle
The air standard Otto cycle has the compression ratio as 8.5. The inlet of the compression has pressure 1 bar and temperature 300 K. The heat is added to the cycle is 1400 kJ/kg. Determine the mean effective pressure in kPa. Assume the CP, CV, and y for air as 1.005
kJ/kg, 0.718 kJ/kg, and 1.4, respectively.
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Required information An air-standard Diesel cycle has a compression ratio of 16 and a cutoff rati...
Required information An air-standard Diesel cycle has a compression ratio of 16 and a cutoff ratio of 2. At the beginning of the compression process, air is at 103 kPa and 27℃. Assume constant specific heats. The properties of air at room temperature are Cp-1.005 kJ/kg-K, cv-0718 kJ/kg.K, R= 0.287 kJ/kg-K, and k = 1.4 Determine the mean effective pressure The mean effective pressure is「 kPa.
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Problem 9.001 SI At the beginning of the compression process of an air-standard Otto cycle, p1...
Problem 9.001 SI At the beginning of the compression process of an air-standard Otto cycle, p1 1 bar and T1 300 K. The compression ratio is 6 and the heat addition per unit mass of air is 1400 kJ/kg Determine: (a) the maximum temperature of the cycle, in K. (b) the net work, in kJ/kg. (c) the percent thermal efficiency of the cycle (d) the mean effective pressure, in kPa.
5) Otto Cycle In this problem, you will analyze the performance of an air-standard Otto cycle for...
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At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar...
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Required information An ideal Otto cycle has a compression ratio of 8. At the beginning of...
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An air Otto cycle has compression ratio of 10. At the beginning of the compression process,...
An air Otto cycle has compression ratio of 10. At the beginning of the compression process, pressure is 1 bar and temperature is 300 K. The maximum temperature in the cycle is 2500 K. cp=718 J/kg/K. k=1.4. Air is ideal gas. Find: a) Sketch the process on a T-s diagram and a P-ν diagram. b) Temperature at each point from T1 to T4 in K. c) The net work per unit of air in kJ/kg.
An air Otto cycle has compression ratio of 10. At the beginning of the compression process,...
An air Otto cycle has compression ratio of 10. At the beginning of the compression process, pressure is 1 bar and temperature is 300 K. The maximum temperature in the cycle is 2500 K. Cp=718 J/kg/K. k=1.4. Air is ideal gas. Find: (1) Sketch the process on a T-s diagram and a P-v diagram. (2+2") (2) Temperature at each point from T1 to T4 in K. (12) (3) The net work per unit of air in kJ/kg. (4')
A Diesel cycle has a compression ratio of 22 and begins its compression at 80 kPa and 15 C. The maximum cycle temperature is 1200°C, Utilize air-standard assumptions. The properties of air at room te...
A Diesel cycle has a compression ratio of 22 and begins its compression at 80 kPa and 15 C. The maximum cycle temperature is 1200°C, Utilize air-standard assumptions. The properties of air at room temperature are R: 0287 The 3 kPam2kg K p 100derd kPa-m /kg-K, Cpー1.005 kJ/kg-K, cv-0718 kJ/kg.K. and k= 1.4 Determine the thermal efficiency of this cycle using variable specific heats at room temperature. Use data from the tables The thermal efficiency of this cycle is 68.97...
(12 points) An ideal Otto cycle operates with a compression ratio of 10. At the beginning...
(12 points) An ideal Otto cycle operates with a compression ratio of 10. At the beginning of the compression process, the air is at 101 kPa and 27°C. During the constant volume heat addition process, 790 kJ/kg of heat is transferred to the air. Accounting for variable specific heats with temperature, determine: the maximum temperature during the cycle 1266.862 °C the maximum pressure during the cycle 6239.424 kPa the specific net work output 475.495481 kJ/kg the mean effective pressure (MEP)...
Problem 3. (20) An air Otto cycle has compression ratio of 10. At the beginning of...
Problem 3. (20) An air Otto cycle has compression ratio of 10. At the beginning of the compression process, pressure is 1 bar and temperature is 300 K. The maximum temperature in the cycle is 2500 K. Cp=718 J/kg/K. k=1.4. Air is ideal gas. Find: (1) Sketch the process on a T-s diagram and a P-v diagram. (2+2) (2) Temperature at cach point from Ti to T4 in K. (12) (3) The net work per unit of air in kJ/kg....
Required information An air-standard Diesel cycle has a compression ratio of 16 and a cutoff ratio of 2. At the beginning of the compression process, air is at 103 kPa and 27℃. Assume constant specific heats. The properties of air at room temperature are Cp-1.005 kJ/kg-K, cv-0718 kJ/kg.K, R= 0.287 kJ/kg-K, and k = 1.4 Determine the mean effective pressure The mean effective pressure is「 kPa.
Required information An air-standard Diesel cycle has a compression ratio of 16 and a...
Problem 9.001 SI At the beginning of the compression process of an air-standard Otto cycle, p1 1 bar and T1 300 K. The compression ratio is 6 and the heat addition per unit mass of air is 1400 kJ/kg Determine: (a) the maximum temperature of the cycle, in K. (b) the net work, in kJ/kg. (c) the percent thermal efficiency of the cycle (d) the mean effective pressure, in kPa.
5) Otto Cycle In this problem, you will analyze the performance of an air-standard Otto cycle for two cases: 1) variable specific heats of air and 2) constant specific heats of air evaluated at 300 K. The following information is given for the cycle: .The pressure and temperature, respectively, are 100 kPa and 300 K at the beginning of compressionn The compression ratio is 9 . The heat addition per unit mass of air is 1350 kJ/kg For each case,...
Required information An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27 and 720 kJ/kg of heat is transferred to air during the constant volume heat addition process. Take into account the variation of specific heats with temperature. The gas constant of air is R=0.287 kJ/kg.K. Determine the network output (You must provide an answer before moving on to the next part.) The net work output...
An air Otto cycle has compression ratio of 10. At the beginning of the compression process, pressure is 1 bar and temperature is 300 K. The maximum temperature in the cycle is 2500 K. Cp=718 J/kg/K. k=1.4. Air is ideal gas. Find: (1) Sketch the process on a T-s diagram and a P-v diagram. (2+2") (2) Temperature at each point from T1 to T4 in K. (12) (3) The net work per unit of air in kJ/kg. (4')
A Diesel cycle has a compression ratio of 22 and begins its compression at 80 kPa and 15 C. The maximum cycle temperature is 1200°C, Utilize air-standard assumptions. The properties of air at room temperature are R: 0287 The 3 kPam2kg K p 100derd kPa-m /kg-K, Cpー1.005 kJ/kg-K, cv-0718 kJ/kg.K. and k= 1.4 Determine the thermal efficiency of this cycle using variable specific heats at room temperature. Use data from the tables The thermal efficiency of this cycle is 68.97...
(12 points) An ideal Otto cycle operates with a compression ratio of 10. At the beginning of the compression process, the air is at 101 kPa and 27°C. During the constant volume heat addition process, 790 kJ/kg of heat is transferred to the air. Accounting for variable specific heats with temperature, determine: the maximum temperature during the cycle 1266.862 °C the maximum pressure during the cycle 6239.424 kPa the specific net work output 475.495481 kJ/kg the mean effective pressure (MEP)...
Problem 3. (20) An air Otto cycle has compression ratio of 10. At the beginning of the compression process, pressure is 1 bar and temperature is 300 K. The maximum temperature in the cycle is 2500 K. Cp=718 J/kg/K. k=1.4. Air is ideal gas. Find: (1) Sketch the process on a T-s diagram and a P-v diagram. (2+2) (2) Temperature at cach point from Ti to T4 in K. (12) (3) The net work per unit of air in kJ/kg....
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