Answered step by step
Verified Expert Solution
Question
1 Approved Answer
The temperature and pressure values at the beginning of compression in a V 6 gasoline engine with a three - liter stroke volume running at
The temperature and pressure values at the beginning of compression in a V gasoline engine with a threeliter stroke volume running at rpm according to the ideal cycle at full throttle are deg C and kPa. The compression ratio of the engine is : the HY ratio is : and the fuel used is gasoline. Assuming that the combustion efficiency is and the mechanical efficiency is ; Answer the following questions based on the information given. Note: There is no residual gas in the cylinder at the end of the cycle.
a Show the cycle steps by drawing pv and Ts graphs. p
b Calculate the temperature deg C and pressure values kPa at each point of the cycle. p
c Find the specific work kJkg produced during the expansion time. p
d Calculate the amount of heat energy kJkg that enters the cycle during combustion. p
d Find the net work kJkg produced during the cycle. p
e Calculate the thermal efficiency of the cycle. p
f Calculate the indicated engine power kWp
g Calculate the effective engine power kWp
g Find the power kW spent on friction. p
h Calculate the torque Nm for the given engine speed. p
i Calculate the average effective pressure kPap
i Calculate the effective specific fuel consumption gkWhp
j Calculate the volumetric efficiency Take the density of air as kgmp
k Calculate the power per liter of stroke volume kWltp
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started