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Problem 2: Fill in the following table: u (kJ/kg) State p(atm)...
Surprise Quiz (1) The temperature at the beginning of the compression process of an air standard...
Surprise Quiz (1) The temperature at the beginning of the compression process of an air standard Otto cycle with a compression ratio of 8 is 27 °C=540 R, the pressure is 105 Pa, and the cylinder volume is 5.66 x 104 m². The maximum temperature during the cycle is 1727 °C=3600R. For the compression and PI 3 expansion processes, use T3 = 3600°R isentropic equations from equation sheet. Tv*-* = T, v*-? PV = P, V. n=11 - T3 =...
4. (20 points): In a constant-volume the start. The temperature of air at the beginning of the compre temperature attained in the cycle is 2100°C. Take kar-1.4 and Rar = 0.287 kJ/kg K. Determine. a)...
4. (20 points): In a constant-volume the start. The temperature of air at the beginning of the compre temperature attained in the cycle is 2100°C. Take kar-1.4 and Rar = 0.287 kJ/kg K. Determine. a) The compression ratio b) The thermal efficiency of the cycle c) The work done d) The mean effective pressure (MEP) if Pi = 100 kPa Otto cycle the pressure at the end of compression is 12 times thatt ssion is 40°C. The maximum
4. (20...
2 Thermodynamics Equations (Cycles) • Solve the following problems from the textbook (Thermodynamics: An Engineering Approach,...
2
Thermodynamics Equations (Cycles)
• Solve the following problems from the textbook (Thermodynamics: An Engineering Approach, by Yunus A. Cengel and Michael A. Boles, 8th Edition, SI Version, 2015): Gas Power Cycles: Obtain problem statements from the textbook Air-Standard Cycles (Otto Cycles) Problems No.: 9-32 An ideal Otto cyele has a compression ratio of 8. At the beginning of the compression process, air at 95 kPa and 27°C, and 750 kJ/kg of heat is transferred to air during the constant-...
Problem #3 (Total marks-14) Given: An engine has the following operating conditions per air-standard Otto cycle:...
Problem #3 (Total marks-14) Given: An engine has the following operating conditions per air-standard Otto cycle: Gasolina (SI) TYCO engine Pressure at beginning of compression process (Pal state 1 Temperature at beginning of compression process state 1) Volumetric compression ratio , Specific heat added during combustion process ( k g) (process 273) 300 1400 Data used for constant Specific Heat (standard cold-air assumption) Method: Ic ... 1.005 kJ/kg. K(C) = 0.718 kJ/kg.K. k=1.400, R -0.287 kJkgK Required: Draw a clear...
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...
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is modeled as an...
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from P1 = 0.5 MPa to P2 = 0.4 MPa Process 2–3: Polytropic expansion with n=k to P3 = 0.3 MPa Process 3–4: Constant-pressure compression to V4 = V1 Process 4–1: Constant-volume heating. (a)...
C only please Question 1 (50 points) One kg of air is in a piston-cylinder assembly....
C
only please
Question 1 (50 points) One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from P, = 0.5 MPa to P2 = 0.4 MPa Process 2–3: Polytropic expansion with n=k to Pz = 0.3 MPa Process 3-4: Constant-pressure compression to V4 = V....
A four-cylinder engine with 9.5-cm bore and an 8.75-cm stroke has 10% clearance. The engine rotates...
A four-cylinder engine with 9.5-cm bore and an 8.75-cm stroke has 10% clearance. The engine rotates at 5500 rpm. The conditions at the beginning of compression are 27°C and 98 kPa. The maximum cycle temperature is 2900°K. The engine may be assumed to operate on an air-standard Otto cycle. Draw the P-V and T-S diagram of the cycle and determine: a) Pressure and Temperature at the end of the expansion process, b) Cycle work, kJ c) Mean Effective Pressure, kPa...
One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas...
One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from P, = 0.5 MPa to P2 = 0.4 MPa Process 2-3: Polytropic expansion with n=k to P; - 0.3 MPa Process 3-4: Constant-pressure compression to V4-V Process 4-1: Constant-volume heating. (a) Sketch the cycle on...
Surprise Quiz (1) The temperature at the beginning of the compression process of an air standard Otto cycle with a compression ratio of 8 is 27 °C=540 R, the pressure is 105 Pa, and the cylinder volume is 5.66 x 104 m². The maximum temperature during the cycle is 1727 °C=3600R. For the compression and PI 3 expansion processes, use T3 = 3600°R isentropic equations from equation sheet. Tv*-* = T, v*-? PV = P, V. n=11 - T3 =...
4. (20 points): In a constant-volume the start. The temperature of air at the beginning of the compre temperature attained in the cycle is 2100°C. Take kar-1.4 and Rar = 0.287 kJ/kg K. Determine. a) The compression ratio b) The thermal efficiency of the cycle c) The work done d) The mean effective pressure (MEP) if Pi = 100 kPa Otto cycle the pressure at the end of compression is 12 times thatt ssion is 40°C. The maximum
4. (20...
2
Thermodynamics Equations (Cycles)
• Solve the following problems from the textbook (Thermodynamics: An Engineering Approach, by Yunus A. Cengel and Michael A. Boles, 8th Edition, SI Version, 2015): Gas Power Cycles: Obtain problem statements from the textbook Air-Standard Cycles (Otto Cycles) Problems No.: 9-32 An ideal Otto cyele has a compression ratio of 8. At the beginning of the compression process, air at 95 kPa and 27°C, and 750 kJ/kg of heat is transferred to air during the constant-...
Problem #3 (Total marks-14) Given: An engine has the following operating conditions per air-standard Otto cycle: Gasolina (SI) TYCO engine Pressure at beginning of compression process (Pal state 1 Temperature at beginning of compression process state 1) Volumetric compression ratio , Specific heat added during combustion process ( k g) (process 273) 300 1400 Data used for constant Specific Heat (standard cold-air assumption) Method: Ic ... 1.005 kJ/kg. K(C) = 0.718 kJ/kg.K. k=1.400, R -0.287 kJkgK Required: Draw a clear...
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...
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from P1 = 0.5 MPa to P2 = 0.4 MPa Process 2–3: Polytropic expansion with n=k to P3 = 0.3 MPa Process 3–4: Constant-pressure compression to V4 = V1 Process 4–1: Constant-volume heating. (a)...
C
only please
Question 1 (50 points) One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from P, = 0.5 MPa to P2 = 0.4 MPa Process 2–3: Polytropic expansion with n=k to Pz = 0.3 MPa Process 3-4: Constant-pressure compression to V4 = V....
A four-cylinder engine with 9.5-cm bore and an 8.75-cm stroke has 10% clearance. The engine rotates at 5500 rpm. The conditions at the beginning of compression are 27°C and 98 kPa. The maximum cycle temperature is 2900°K. The engine may be assumed to operate on an air-standard Otto cycle. Draw the P-V and T-S diagram of the cycle and determine: a) Pressure and Temperature at the end of the expansion process, b) Cycle work, kJ c) Mean Effective Pressure, kPa...
One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from P, = 0.5 MPa to P2 = 0.4 MPa Process 2-3: Polytropic expansion with n=k to P; - 0.3 MPa Process 3-4: Constant-pressure compression to V4-V Process 4-1: Constant-volume heating. (a) Sketch the cycle on...
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