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Required information An ideal Otto cycle has a compression ratio of 8. At the beginning of...
Required information An ideal Otto cycle has a compression ratio of 8. At the beginning of the co...
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°C, and 780 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 net work output. (You must provide an answer before moving on to the next part.) The net work output...
An ideal Otto cycle has a compression ratio of 8. At the beginning of the transferred compression...
An ideal Otto cycle has a compression ratio of 8. At the beginning of the transferred compression process, air is at 95 kPa and 27-degree C, and 750 kJ/kg of heat is to air during the constant-volume heat-addition process. Considering the variation of specific heats with temperature (Table A-17), determine (a) the pressure and temperature at the end of the heat addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the...
Q3. An ideal Otto cycle has a compression ratio of 8. At the beginning of the...
Q3. An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 278C, and 750 kJ/kg of heat is transferred to air during the constant- volume heat-addition process. Taking into account the variation of specific heats with temperature, determine (a) the pressure and temperature at the end of the heat- addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for...
An ideal Otto cycle has a compression ratio of 9. At the beginning of the compression...
An ideal Otto cycle has a compression ratio of 9. At the beginning of the compression process, air is at 100 kPa and 17°C, and 900 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Taking into account the variation of specific heats with temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle .
(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)...
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 (3) The compression ratio of an air-standard Otto cycle is 8. At the beginning of...
Problem (3) The compression ratio of an air-standard Otto cycle is 8. At the beginning of compression process, the air is at 100 KPa, and 17 °C. 800 kJ/kg of heat is transferred to the air during the constant volume heat addition process. Determine: (a) The highest temperature in the cycle. (b) The highest pressure in the cycle. (c) The net work. (d) The thermal efficiency of the cycle.
In an Otto cycle air is compressed from an initial pressure 120 kPa and temperature 370...
In an Otto cycle air is compressed from an initial pressure 120 kPa and temperature 370 T (K). The cycle has compression ratio of 10. In the constant volume heat addition process 1000 kJ/kg heat is added into the air. Considering variation on the specific heat of air with temperature, determine, (a) the pressure and temperature at the end of heat addition process (show the points on P-v diagram) (b) the network output (c) the thermal efficiency (d) the mean...
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.
Required information An air-standard Diesel cycle has a compression ratio of 16 and a...
An ideal Otto cycle with air as the working fluid has a compression ratio of 7....
An ideal Otto cycle with air as the working fluid has a compression ratio of 7. At the beginning of the compression process, air is at 90 kPa and 27°C, and volume of the cylinder v1 = 0.004 m3. The maximum cycle temperature is 1127°C. Taking into account constant specific heats at room temperature, determine, a) the heat rejection (2) b) the net work output (2) c) the thermal efficiency, and (2) d) the mean effective pressure for the cycle...
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°C, and 780 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 net work output. (You must provide an answer before moving on to the next part.) The net work output...
An ideal Otto cycle has a compression ratio of 8. At the beginning of the transferred compression process, air is at 95 kPa and 27-degree C, and 750 kJ/kg of heat is to air during the constant-volume heat-addition process. Considering the variation of specific heats with temperature (Table A-17), determine (a) the pressure and temperature at the end of the heat addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the...
Q3. An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 278C, and 750 kJ/kg of heat is transferred to air during the constant- volume heat-addition process. Taking into account the variation of specific heats with temperature, determine (a) the pressure and temperature at the end of the heat- addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for...
An ideal Otto cycle has a compression ratio of 9. At the beginning of the compression process, air is at 100 kPa and 17°C, and 900 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Taking into account the variation of specific heats with temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle .
(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)...
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 (3) The compression ratio of an air-standard Otto cycle is 8. At the beginning of compression process, the air is at 100 KPa, and 17 °C. 800 kJ/kg of heat is transferred to the air during the constant volume heat addition process. Determine: (a) The highest temperature in the cycle. (b) The highest pressure in the cycle. (c) The net work. (d) The thermal efficiency of the cycle.
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...
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