Recent content by ajayguhan

In my book it is mentioned that piston effort along the line of stroke=(Force due to gas pressure)+(Inertia force) why we have to consider inertia force when it is a imaginary force which is considered only during non inertial frame? why we don't equate piston effort with gas force simple...

we consider inertia force only when we deal with non inertial frame, if so while balancing a machine which has say reciprocating or rotating motion, do we balance it in non inertial frame?

okay then in case of reciprocating motion, should we consider inertia force only when we choose a reciprocating frame(non inertia frame)? then what effect does the inertia force has on motions? and why do we consider them for balancing of machines and minimizing the vibration?

While balancing rotating mass we consider the inertia force (centrifugal force) is equal and opposite to centripetal force which causes the rotation. if both force(applied external force on rotating mass) which causes the motion and force which resist motion (inertia force) are equal and...

if the time taken by a system to execute a process through a finite gradient is infinitely large, then the process is reversible or irreversible?

the solution is integral Vdp where V is Vf at 1 bar. dp= p2-p1 , where p1= 1 bar and p2=10bar.

It is the isentropic compression by pump in RANKINE CYCLE ...I'll post the problem statement with solution soon. (Unable to post now due to some error)

efficiency n=1 -(q1/q2) for a normal heat engine But how efficiency n=1 -(t1/t2) ? for reversible heat engine

But the textbook solution is vdp only.

Saturated liquid water

Workdone= integral Pdv a kg of saturated water was compressed isentropically from 1 bar to 10 bar. I solved it in the following logic: Since water is incompressible dv=0 , work =0 But my answers was wrong. The solution was integral Vdp where V is Vf at 1 bar My doubt is , is workdone...

Homework Statement if 137 + 276=435, how much is 731+672=? [/B]

You can rotate it easily nah ...? What's the problem in rotating the image. If my work is not legible then just say, I'll repost it better than now.

I have attached both the question and my attempt at solution. My problem is reducing the equation further to get the value of a/L

The site says that they can have any number of blades depending upon certain factor. It doesn't explain why most commercial fans have three blades?