Recent content by syt0x

Thanks for all your help and I appreciate you working through the problem with me instead of just giving me the answer. I actually learned something!

And part 1 is asking what is the displacement volume of the turbo engine to produce the same power. What I did isn't correct? The displacement would be lower but produce the same power due to the turbo which is the point of downsizing an engine and adding a turbo to save fuel.

For part one. I set up a ratio V2=(V1*n1)/n2 V1=2.5litre n1=.9 n2=1.10 This gave me a V2 of 2.045 litres, seem correct? For part 2 did (4000rev/min)*(1min/60sec)*(360deg/1rev)=24000deg/sec Then I did 24000deg/sec*(600*10^(-6)=14.4 deg Finally I took -12 deg+14.4 deg to equal 2.4...

I think an equation for the 3rd part of number 2 might be Power=(volumetric efficiency)*(heating value of fuel)*(mass flow rate of fuel) then solve for the mass flow rate of fuel?

Homework Statement An automobile has a 2.5-litre, four-cylinder, homogeneously charged, direct injected, four-stroke diesel engine. The maximum power output of this naturally aspirated engine is 200 HP at 4000 rpm. By turbocharging, the intake pressure is boosted twice as that for the naturally...