You have designed a jet ski equipped with a Diesel engine that would supposedly be fast and strong enough to conquer the waves of the Sea with an initial cylinder volume of 0.5 m^3 and a cylinder volume after compression of 0.025 m^3. The initial intake temperature of the air is at 25°C and the final temperature of the air after expansion is 50 °C. a. What is the heat absorbed and discarded by the engine b. the compression and cutoff ratios c. If the minimum efficiency of the engine that would allow a certain person to fulfill his promise by using the jet ski in defending our seas and islands is 60%, is the jet ski you designed capable?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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You have designed a jet ski equipped with a
Diesel engine that would supposedly be fast and
strong enough to conquer the waves of the Sea
with an initial cylinder volume of 0.5 m^3 and a
cylinder volume after compression of 0.025 m^3.
The initial intake temperature of the air is at
25°C and the final temperature of the air after
expansion is 50 °C.
a. What is the heat absorbed and discarded
by the engine
b. the compression and cutoff ratios.
c. If the minimum efficiency of the engine that
would allow a certain person to fulfill his promise
by using the jet ski in defending our seas and
islands is 60%, is the jet ski you designed
capable?
d. what is the efficiency if an Otto engine is used
instead?
Transcribed Image Text:You have designed a jet ski equipped with a Diesel engine that would supposedly be fast and strong enough to conquer the waves of the Sea with an initial cylinder volume of 0.5 m^3 and a cylinder volume after compression of 0.025 m^3. The initial intake temperature of the air is at 25°C and the final temperature of the air after expansion is 50 °C. a. What is the heat absorbed and discarded by the engine b. the compression and cutoff ratios. c. If the minimum efficiency of the engine that would allow a certain person to fulfill his promise by using the jet ski in defending our seas and islands is 60%, is the jet ski you designed capable? d. what is the efficiency if an Otto engine is used instead?
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