Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
·An Sl engine is modelled with an Otto cycle and operated at part throttle. The air-fue with AF = 15 enters the cylinders at 75 kPa and 58°C. The compression ratio r. = 9.5:1, the exhaust pressure constant volume specific heat c, = 0.821 kJ/kg-K, the specific heat ratio k = 1.35, the gas constant of air R = 0.287 kJ/kg-K, and combustion efficiency n. assumed that there is no exhaust residual. Calculate the temperature in cylinder at start of combustion [°C] (Express your answer as an integer). = 100 kPa, the heating value Qay = 43,000 kJ/kg, the %3D 96%. It can be

·An Sl engine is modelled with an Otto cycle and operated at part throttle. The air-fue with AF = 15 enters the cylinders at 75 kPa and 58°C. The compression ratio r. = 9.5:1, the exhaust pressure constant volume specific heat c, = 0.821 kJ/kg-K, the specific heat ratio k = 1.35, the gas constant of air R = 0.287 kJ/kg-K, and combustion efficiency n. assumed that there is no exhaust residual. Calculate the temperature in cylinder at start of combustion [°C] (Express your answer as an integer). = 100 kPa, the heating value Qay = 43,000 kJ/kg, the %3D 96%. It can be

Elements Of Electromagnetics
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
See similar textbooks
icon
Related questions
Question
100%
The figure opposite shows the cycle of a four-stroke, SI, naturally aspirated engine at part throttle. At part throttle, the intake stroke pressure will be some constant value lower than one atmosphere. · The exhaust stroke pressure is assumed constant at 1 atmosphere. · The work done during the intake stroke is: W. -1 = P; (V-V6) = P;Va · The work done during the exhaust stroke is: Ws-6 = Pex (Vs-V6) = -PexVa The net indicated pumping work: 3 (3-9) (3-10) Wpump = (P – Pex)Va (3-11) Question 1 · An Sl engine is modelled with an Otto cycle and operated at part throttle. The air-fuel with AF = 15 enters the cylinders at 75 kPa and 58°C. The compression ratio r. = 9.5:1, the exhaust pressure = 100 kPa, the heating value QHv = 43,000 kJ/kg, the constant volume specific heat c, = 0.821 kJ/kg-K, the specific heat ratio k = 1.35, the gas constant of air R = 0.287 kJ/kg-K, and combustion efficiency n. = assumed that there is no exhaust residual. Calculate the temperature in cylinder at start of combustion [°C] (Express your answer as an integer). 96%. It can be 2 O7
Transcribed Image Text:The figure opposite shows the cycle of a four-stroke, SI, naturally aspirated engine at part throttle. At part throttle, the intake stroke pressure will be some constant value lower than one atmosphere. · The exhaust stroke pressure is assumed constant at 1 atmosphere. · The work done during the intake stroke is: W. -1 = P; (V-V6) = P;Va · The work done during the exhaust stroke is: Ws-6 = Pex (Vs-V6) = -PexVa The net indicated pumping work: 3 (3-9) (3-10) Wpump = (P – Pex)Va (3-11) Question 1 · An Sl engine is modelled with an Otto cycle and operated at part throttle. The air-fuel with AF = 15 enters the cylinders at 75 kPa and 58°C. The compression ratio r. = 9.5:1, the exhaust pressure = 100 kPa, the heating value QHv = 43,000 kJ/kg, the constant volume specific heat c, = 0.821 kJ/kg-K, the specific heat ratio k = 1.35, the gas constant of air R = 0.287 kJ/kg-K, and combustion efficiency n. = assumed that there is no exhaust residual. Calculate the temperature in cylinder at start of combustion [°C] (Express your answer as an integer). 96%. It can be 2 O7
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
IC Engines
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY
SEE MORE TEXTBOOKS