Hello, so i have attached two images. the first image is the quetions, i need part b) answered if possible. i have attached my findings to part a) to add to the little information we know to help with part b if needed. Thnks a) The company has two diesel-powered standby generators, both ofwhich are capable of supplying sufficient electrical power in theevent of a failure. Both diesel engines have the same details ontheir name plates (given below), but one operates on the four-stroke cycle, whilst the other operates on a two-stroke cycle. Asall the other information has been lost, you have been asked todetermine the brake power, indicated power, and thus confirm themechanical efficiency of each engine. Explain why these efficiencyvalues may be different for each engine.Mean effective550 KN/m²pressureSwept volume of14 litrescylinderSpeed of engine150 revs/minBrake torque2000 NmNumber of cylinders | 8b) In an unused area of the test facility, lie two internal combustionengines that were brought in for assessment several years ago.Using what little information has been found, determine therelative efficiency of each. Take y for air as 1.4 for both. 1. Brake Power2. IndicatedPower3. MechanicalEfficiency2-stroke engine(10π) KW154 kW20.4%4-stroke engine(10) KW77 kW40.8%

Compression-Ignition Engine (Diesel cycle): - Cut off ratio=V3V2=3.6T3=1400 °C=1673 K,T1=75 °C=348…

Answered: ) In an unused area of the test…

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

Related questions

Question

100%

Hello, so i have attached two images. the first image is the quetions, i need part b) answered if possible. i have attached my findings to part a) to add to the little information we know to help with part b if needed. Thnks

a) The company has two diesel-powered standby generators, both of
which are capable of supplying sufficient electrical power in the
event of a failure. Both diesel engines have the same details on
their name plates (given below), but one operates on the four-
stroke cycle, whilst the other operates on a two-stroke cycle. As
all the other information has been lost, you have been asked to
determine the brake power, indicated power, and thus confirm the
mechanical efficiency of each engine. Explain why these efficiency
values may be different for each engine.
Mean effective
550 KN/m²
pressure
Swept volume of
14 litres
cylinder
Speed of engine
150 revs/min
Brake torque
2000 Nm
Number of cylinders | 8
b) In an unused area of the test facility, lie two internal combustion
engines that were brought in for assessment several years ago.
Using what little information has been found, determine the
relative efficiency of each. Take y for air as 1.4 for both.

1. Brake Power
2. Indicated
Power
3. Mechanical
Efficiency
2-stroke engine
(10π) KW
154 kW
20.4%
4-stroke engine
(10) KW
77 kW
40.8%

Expert Solution

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Follow-up Questions

Read through expert solutions to related follow-up questions below.

Follow-up Question

The p-v diagram all make sense, but the equations are unreadable. i dont understand where some units have come from etc, could you please further explain the equations. thnks, feel free to take the relevant amount of credits

Solution

by Bartleby Expert

SEE SOLUTION

Knowledge Booster

Quality Assurance, Process Planning, and Quality Control

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