A gasoline engine has a volumetric compression ratio of 10 and before compression has air at 290 K, 85 kPa in the cylinder. The combustion peak pressure is 6000 kPa. Assume cold air properties. What is the highest temperature in the cycle? Find the temperature at the beginning of the exhaust (heat rejection) and the overall cycle efficiency.

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
icon
Related questions
Question

excel also

Otto Cycle
Color Key
Ideal Gas Model used with specific heats as f(T)
Fill In
Instructions
Sensitivity Study
Problem
CR =
Otto
Sample Problem
Engine Sound?
STATE POINTS
P [kPa]
T°C]
T[K]
v [m'/kg] s [kJ/kg•K] u [kJ/kg]
1- Compression In
2 - Combustion Begins
3 - Expansion Begins
4- Expansion Ends
5 - Compression In
PROCESSES
Uin [kJ/kg]
Uout [kJ/kg] Q [kJ/kg]
W [kJ/kg]
Compression
0.0
0.0
Combustion
0.0
0.0
1
2
3
4
1
Power Stroke
0.0
0.0
1-2 isentropic compression
Heat Rejection
0.0
0.0
Sums =
2-3 constant volume heat addition (combustion)
3-4 isentropic expansion (power stroke)
Eta =
4-1 constant volume heat rejection
Transcribed Image Text:Otto Cycle Color Key Ideal Gas Model used with specific heats as f(T) Fill In Instructions Sensitivity Study Problem CR = Otto Sample Problem Engine Sound? STATE POINTS P [kPa] T°C] T[K] v [m'/kg] s [kJ/kg•K] u [kJ/kg] 1- Compression In 2 - Combustion Begins 3 - Expansion Begins 4- Expansion Ends 5 - Compression In PROCESSES Uin [kJ/kg] Uout [kJ/kg] Q [kJ/kg] W [kJ/kg] Compression 0.0 0.0 Combustion 0.0 0.0 1 2 3 4 1 Power Stroke 0.0 0.0 1-2 isentropic compression Heat Rejection 0.0 0.0 Sums = 2-3 constant volume heat addition (combustion) 3-4 isentropic expansion (power stroke) Eta = 4-1 constant volume heat rejection
A gasoline engine has a volumetric compression ratio of 10 and before
compression has air at 290 K, 85 kPa in the cylinder. The combustion peak
pressure is 6000 kPa. Assume cold air properties. What is the highest temperature
in the cycle? Find the temperature at the beginning of the exhaust (heat rejection)
and the overall cycle efficiency.
Solution:
Transcribed Image Text:A gasoline engine has a volumetric compression ratio of 10 and before compression has air at 290 K, 85 kPa in the cylinder. The combustion peak pressure is 6000 kPa. Assume cold air properties. What is the highest temperature in the cycle? Find the temperature at the beginning of the exhaust (heat rejection) and the overall cycle efficiency. Solution:
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Automation of Manufacturing Processes
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