Nilo, teh formula is right, so the advise is: check
the units. Also, keep in mind that the velocity you
get in manuals might be very well expressed in m/s or
even ft/s. It will probably worth to recheck the units
in both sides.
- nilo aninon <onil8001@yahoo.com> wrote:
> Hi everybody,
>
> To anybody who is very much knowlegeable about this
> subject matter, please share a piece of your
> knowledge.
>
> Is Q=A*V formula can be used in solving theoritical
> steam velocity? Say, I have already known the mass
> flow of steam in kg/hr. Then through the steam
> tables
> I can extract value for specific volume of steam in
> m3/kg. With the two data known, I think I can
> already
> solved for the velocity of steam using the above
> mentioned relation V=Q/A, where:
>
> Q=volumetric flow, m3/hr
> A=cross sectional area of pipe, m2
>
> Substituting the value,
> Q=mass flow of steam (kg/hr)*specific volume (m3/kg)
> Q=m3/hr
>
> Therefore,
> V=Q(m3/hr)/A(m2)
> V=m/hr
>
> I was quite confused because the result of my
> calculation is very far or too high compared with
> the
> data provided by some boiler accessories
> manufacturer.
>
> Hope to hear from the experts.
>
> Very truly yours,
>
> Onil
>
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Received on Thu Sep 20 11:39:00 2001