From: "Andrew Martin andrew@martinag.com.au" <flyrotary@lancaironline.net>
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Date: Sat, 7 Sep 2019 18:25:29 +0800
Message-ID: <CAJxaVD061Crzqx7phbuEnh16f8EtMfXFavKdAQsxi-AibuSUEw@mail.gmail.com>
Subject: Re: [FlyRotary] Water spray cooling question
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Steve.
The guru at my Ruffasguts Engineering Company would say to just try a
windscreen washer bottle with inbuilt pump and a garden sprayer mist nozzle
on the end of the hose and see how that goes.
Technical enough for ya=F0=9F=98=81

On Sat, 7 Sep. 2019, 5:57 pm Stephen Izett stephen.izett@gmail.com, <
flyrotary@lancaironline.net> wrote:

> Hi Guys
>
> I=E2=80=99m wanting to understand how much water is required to to be ato=
mised
> into the coolant diffuser to lower the mass of air by say 10C.
> I=E2=80=99m interested in this for the couples of minutes of high energy =
input
> into the coolant and oil while the airspeed is low on taxi/takeoff.
>
> Is there anyone clear at their fingertips the physics/eng calculation
> required?
>
> I expect it must involve energy required to vaporise water - 540 cal/gram
> OAT, Humidity, mass of air/min.
>
> Thanks.
>
> Steve Izett
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:
> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>

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<div dir=3D"auto">Steve.=C2=A0<div dir=3D"auto">The guru at my Ruffasguts E=
ngineering Company would say to just try a windscreen washer bottle with in=
built pump and a garden sprayer mist nozzle on the end of the hose and see =
how that goes.</div><div dir=3D"auto">Technical enough for ya=F0=9F=98=81</=
div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_at=
tr">On Sat, 7 Sep. 2019, 5:57 pm Stephen Izett <a href=3D"mailto:stephen.iz=
ett@gmail.com">stephen.izett@gmail.com</a>, &lt;<a href=3D"mailto:flyrotary=
@lancaironline.net">flyrotary@lancaironline.net</a>&gt; wrote:<br></div><bl=
ockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #=
ccc solid;padding-left:1ex">Hi Guys<br>
<br>
I=E2=80=99m wanting to understand how much water is required to to be atomi=
sed into the coolant diffuser to lower the mass of air by say 10C.<br>
I=E2=80=99m interested in this for the couples of minutes of high energy in=
put into the coolant and oil while the airspeed is low on taxi/takeoff.<br>
<br>
Is there anyone clear at their fingertips the physics/eng calculation requi=
red?<br>
<br>
I expect it must involve energy required to vaporise water - 540 cal/gram<b=
r>
OAT, Humidity, mass of air/min.<br>
<br>
Thanks.<br>
<br>
Steve Izett<br>
--<br>
Homepage:=C2=A0 <a href=3D"http://www.flyrotary.com/" rel=3D"noreferrer nor=
eferrer" target=3D"_blank">http://www.flyrotary.com/</a><br>
Archive and UnSub:=C2=A0 =C2=A0<a href=3D"http://mail.lancaironline.net:81/=
lists/flyrotary/List.html" rel=3D"noreferrer noreferrer" target=3D"_blank">=
http://mail.lancaironline.net:81/lists/flyrotary/List.html</a><br>
</blockquote></div>

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