From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: Water spray cooling question
Date: Sat, 7 Sep 2019 22:21:43 +0800
References: <list-12933152@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-12933152@logan.com>
Message-Id: <542E05C8-C2BE-4F08-9E06-E9F35BD78483@gmail.com>

Yeh, that=E2=80=99s what the street race crowd use on their intercoolers =
and what I am planning.
I=E2=80=99d just like to know what cooling I might expect and how much =
water must be carried.
Ive ordered a washer pump that is recommended to provide over 30psi and =
purchased some mist spray jets that are used to cool peoples outdoor =
living spaces here in Aust when the temps go well over 100F.
Cheers

Steve

> On 7 Sep 2019, at 6:25 pm, Andrew Martin andrew@martinag.com.au =
<flyrotary@lancaironline.net> wrote:
>=20
> Steve.=20
> 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
>=20
> On Sat, 7 Sep. 2019, 5:57 pm Stephen Izett stephen.izett@gmail.com, =
<flyrotary@lancaironline.net> wrote:
> Hi Guys
>=20
> I=E2=80=99m wanting to understand how much water is required to to be =
atomised 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.
>=20
> Is there anyone clear at their fingertips the physics/eng calculation =
required?
>=20
> I expect it must involve energy required to vaporise water - 540 =
cal/gram
> OAT, Humidity, mass of air/min.
>=20
> Thanks.
>=20
> Steve Izett
> --
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