A 3-liter 6-cylinders square engine (bore = stroke) with two intake valves and one exhaust valve per cylinder is designed to have an output power of 300 kW and a corresponding bmep of 18.5 bar. The intake temperature is 55°C. Assume an average flow coefficient at the intake valve of 0.35. a) Calculate the intake valve area and the diameter of intake valves for a good volumetric efficiency (Mach index Z of 0.6) b) Calculate the exhaust valve area if the exhaust gases temperature is 600°C; the average flow coefficient at the exhaust valve is 0.6. c) The exhaust valve opens when the piston is at the bottom dead center. For a lift 1 = 1.35 cm of the exhaust valve, calculate the flow rate through the exhaust valve. The average flow coefficient at the exhaust valve is 0.6 and the cylinder pressure and temperature are 500 kPa and 600°C. Assume exhaust system pressure is 105 kPa. Notes: The specific heat ratio and gas constant for the gases at the inlet and exhaust valves are respectively ↑ =1.4 and R = 287 J/kg.K

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
100%
External problem – assignment chapter 7
A 3-liter 6-cylinders square engine (bore = stroke) with two intake valves and one exhaust valve per
cylinder is designed to have an output power of 300 kW and a corresponding bmep of 18.5 bar. The
intake temperature is 55°C. Assume an average flow coefficient at the intake valve of 0.35.
a) Calculate the intake valve area and the diameter of intake valves for a good volumetric efficiency
(Mach index Z of 0.6)
b) Calculate the exhaust valve area if the exhaust gases temperature is 600°C; the average flow
coefficient at the exhaust valve is 0.6.
c) The exhaust valve opens when the piston is at the bottom dead center. For a lift 1 = 1.35 cm of the
exhaust valve, calculate the flow rate through the exhaust valve. The average flow coefficient at the
exhaust valve is 0.6 and the cylinder pressure and temperature are 500 kPa and 600°C. Assume exhaust
system pressure is 105 kPa.
Notes: The specific heat ratio and gas constant for the gases at the inlet and exhaust valves are
respectively y = 1.4 and R= 287 J/kg.K
Transcribed Image Text:External problem – assignment chapter 7 A 3-liter 6-cylinders square engine (bore = stroke) with two intake valves and one exhaust valve per cylinder is designed to have an output power of 300 kW and a corresponding bmep of 18.5 bar. The intake temperature is 55°C. Assume an average flow coefficient at the intake valve of 0.35. a) Calculate the intake valve area and the diameter of intake valves for a good volumetric efficiency (Mach index Z of 0.6) b) Calculate the exhaust valve area if the exhaust gases temperature is 600°C; the average flow coefficient at the exhaust valve is 0.6. c) The exhaust valve opens when the piston is at the bottom dead center. For a lift 1 = 1.35 cm of the exhaust valve, calculate the flow rate through the exhaust valve. The average flow coefficient at the exhaust valve is 0.6 and the cylinder pressure and temperature are 500 kPa and 600°C. Assume exhaust system pressure is 105 kPa. Notes: The specific heat ratio and gas constant for the gases at the inlet and exhaust valves are respectively y = 1.4 and R= 287 J/kg.K
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Fluid Dynamics
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
  • SEE MORE 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