Integrating pressure vs volume in terms of angle theta

[regsy]

I'm trying to find the work done to compress a gas by integrating a pressure-volume graph in terms of the crank angle of a piston. When using the integral function in Mathcad, an error comes up saying that these units are not comparable for p(theta).  Any help would be appreciated.

[MJG]

Looks like you must be using Prime 4.0.  Many of us can't open Prime 4.0 files.  Coudl you also attach a PDF or screen shot?

[RichardJ]

You are integrating over angle, so the units of the limits should be angle. You have units of volume.

[terryhendicott]

Hi,

You can eliminate the two Solve blocks with direct calculation if you want to streamline the sheet.

[ValeryOchkov]

[ValeryOchkov]

Use please

www.wsp.ru

for same calculation/

One example for Mathcad 15. Works with Prime 4 too

[VladimirN]

Another new bug here?

 P.S. @Jaime_Lee Please check it.