At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar...
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 1300 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.
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At the beginning of the compression process of an air-standard
Otto cycle, p1 = 1 bar...
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.
At the beginning of the compression process of an air-standard Otto cycle, P1 = 1.0 bar,...
At the beginning of the compression process of an air-standard Otto cycle, P1 = 1.0 bar, T1 = 290 K, V1 = 400 cm3. The maximum temperature in the cycle is 2200 K and the compression ratio is 8. Determine: a) the heat addition in kJ, b) the net work in kJ, c) the thermal efficiency, and d) the mean effective pressure, in bar.
At the beginning of the compression process of an air standard Otto cycle, p1 = 1...
At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.3 L. Determine per cylinder: a) the volume at state 1. b) the air mass per cycle. c) the heat addition per cycle, in kJ. d) the heat rejection per cycle, in...
At the beginning of the compression process of an air standard Otto cycle, p1 = 1...
At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vd = 2.7 L. Determine per cylinder: a) the volume at state 1. b) the air mass per cycle. c) the heat addition per cycle, in kJ. d) the heat rejection per cycle, in kJ. e) the net work...
1. At the beginning of the compression process of an air-standard Otto cycle, P bar, T1...
1. At the beginning of the compression process of an air-standard Otto cycle, P bar, T1 = 290 K, Vi = 400 cm. The maximum temperature in the cycle is 2200 K and the compression ratio is 8. Determine (a) the heat addition, in kJ (b) the net work, in kJ. (c) the thermal efficiency. (d) the mean effective pressure, in bar.
Problem 9.003 SI At the beginning of the compression process of an air standard Otto cycle,...
Problem 9.003 SI At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vo = 2.4 L. Determine per cylinder: a) e) f) the volume at state 1. the air mass per cycle. the heat addition per cycle, in kJ. the heat rejection per...
Temperature and pressure at the beginning of the compression process of an air-standard Otto cycle are...
Temperature and pressure at the beginning of the compression process of an air-standard Otto cycle are 295 K and 100 kPa, respectively. The compression ratio is 10 and the maximum temperature during the cycle is 2200 K. Draw P-v and T-s diagrams of the cycle and determine: a) The net work in kJ/kg. b) The thermal efficiency. c) The mean effective pressure, in kPa. Assume R = 287 J/kg.K for air.
Consider a modification of the air-standard Otto cycle in which the isentropic compression and expansion processes...
Consider a modification of the air-standard Otto cycle in which the isentropic compression and expansion processes are each replaced with polytropic processes having n = 1.35. The compression ratio is 10 for the modified cycle. At the beginning of compression, p1 = 1 bar and T1 = 310 K. The maximum temperature during the cycle is 2200 K. Determine: (a) the heat transfer and work in kJ per kg of air for each process in the modified cycle. (b) the...
5) Otto Cycle In this problem, you will analyze the performance of an air-standard Otto cycle for...
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,...
An Otto cycle has a compression ratio of 8. At the beginning of the compression process,...
An Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27°C and 750 kJ/kg of heat is transferred to the air during the heat addition process. Accounting for the variation of specific heats with temperature, determine: a) the temperature [K] and pressure [kPa] after the compression process; b) the temperature [K] and pressure [kPa] after the heat addition process; c) the net power output [kJ/kg]; d) the thermal...
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.
1. At the beginning of the compression process of an air-standard Otto cycle, P bar, T1 = 290 K, Vi = 400 cm. The maximum temperature in the cycle is 2200 K and the compression ratio is 8. Determine (a) the heat addition, in kJ (b) the net work, in kJ. (c) the thermal efficiency. (d) the mean effective pressure, in bar.
Problem 9.003 SI At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K. The maximum temperature in the cycle is 2250 K and the compression ratio is 9.8. The engine has 4 cylinders and an engine displacement of Vo = 2.4 L. Determine per cylinder: a) e) f) the volume at state 1. the air mass per cycle. the heat addition per cycle, in kJ. the heat rejection per...
Temperature and pressure at the beginning of the compression process of an air-standard Otto cycle are 295 K and 100 kPa, respectively. The compression ratio is 10 and the maximum temperature during the cycle is 2200 K. Draw P-v and T-s diagrams of the cycle and determine: a) The net work in kJ/kg. b) The thermal efficiency. c) The mean effective pressure, in kPa. Assume R = 287 J/kg.K for air.
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,...
An Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27°C and 750 kJ/kg of heat is transferred to the air during the heat addition process. Accounting for the variation of specific heats with temperature, determine: a) the temperature [K] and pressure [kPa] after the compression process; b) the temperature [K] and pressure [kPa] after the heat addition process; c) the net power output [kJ/kg]; d) the thermal...
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