Logo
Home Study Material Contact Search
AI Chat FREE
  1. engineering
  2. mechanical engineering
  3. a four-cylinder four-stroke engine is operating at

A four-cylinder four-stroke engine is operating at a bmep of 2 bar. The pressure at inlet...

90.2K

Verified Solution

Question

Mechanical Engineering

A four-cylinder four-stroke engine is operating at a bmep of 2bar. The pressure at inlet valve closure is 0.37 bar, and the fmepis 0.8 bar. Assuming that the engine gross indicated efficiency isunchanged, verify that disablement of the valves on two cylinderswould reduce the fuel consumption by about 13 per cent comparedwith about an 8 per cent fuel saving if the fuel was not suppliedto two cylinders. Assume that the gross imep is proportional to thepressure at inlet valve closure, and that the gross indicatedefficiency is constant. State any additional assumptions that youmake. By means of p–V diagram sketches, explain why disabling onlythe inlet or exhaust valves would have a fuel economy benefitcomparable to fuel disablement to two cylinders.

Answer & Explanation Solved by verified expert
4.0 Ratings (645 Votes)
    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Chemistry
1.2K views

Calculate the Molar solubility at 25 degrees clelcius of Cr(OH)3 In: Water: 1.50 M Cr(NO3)3: A solution buffered to...

Physics
1.2K views

For a particle in uniform circular motion the acceleration a at a point P R...

Statistics
1.2K views

at the Battle of Hastings The respective bids in thousands of dollars placed by the...

Calculus
1.2K views

Find the derivative of the function y x sin 3 8

Algebra
1.2K views

Question 2 4 points Find a QR factorization of A 2 2

Accounting
1.2K views

Required information The following...

Accounting
1.2K views

1. Conner Company borrows $203,600 cash on November 1, 2013, by signing a 120-day, 9%...

Accounting
1.2K views

13) At the end of Year 1, Carrot Company revised the...

Accounting
1.2K views

Required information Skip to question [The following information applies to the questions displayed below.]...

Accounting
1.2K views

Transfer Pricing, Idle Capacity Mouton & Perrier, Inc., has a number of divisions that produce...

Accounting
1.2K views

eBook Calculator Print Item Profitability Ratios East Point Retail, Inc., sells professional women's apparel...

Accounting
1.2K views

On April 30, the end of the first month of operations, Joplin Company prepared the...