Return-Path: Received: from mxsf04.cluster1.charter.net ([209.225.28.204] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2840204 for flyrotary@lancaironline.net; Sat, 06 Dec 2003 14:16:05 -0500 Received: from dell (c68.187.32.48.ts46v-21.grnbry.ftwrth.tx.charter.com [68.187.32.48]) by mxsf04.cluster1.charter.net (8.12.10/8.12.8) with SMTP id hB6JCnGW000695 for ; Sat, 6 Dec 2003 14:12:50 -0500 (EST) (envelope-from n268bl@charter.net) MIME-Version: 1.0 Message-Id: <3FD229AB.000004.99503@dell.WorkGroup> Date: Sat, 6 Dec 2003 13:10:35 -0600 (Central Standard Time) Content-Type: Multipart/related; type="multipart/alternative"; boundary="------------Boundary-00=_NLMHBHK0000000000000" X-Mailer: IncrediMail 2001 (1850931) From: "Bill Eslick" References: X-FID: BA285063-5BCE-11D4-AF8D-0050DAC67E11 X-FVER: X-FIT: X-FCOL: X-FCAT: X-FDIS: X-BG: X-BGT: repeat X-BGC: #eff3f7 X-BGPX: left X-BGPY: 0px X-ASN: ANIM3D00-NONE-0000-0000-000000000000 X-ASNF: 0 X-ASH: ANIM3D00-NONE-0000-0000-000000000000 X-ASHF: 1 X-AN: 6486DDE0-3EFD-11D4-BA3D-0050DAC68030 X-ANF: 0 X-AP: 6486DDE0-3EFD-11D4-BA3D-0050DAC68030 X-APF: 1 X-AD: C3C52140-4147-11D4-BA3D-0050DAC68030 X-ADF: 0 X-AUTO: X-ASN,X-ASH,X-AN,X-AP,X-AD X-CNT: ; X-Priority: 3 To: Subject: [FlyRotary] Re: spray bars --------------Boundary-00=_NLMHBHK0000000000000 Content-Type: Multipart/Alternative; boundary="------------Boundary-00=_NLMH6RO0000000000000" --------------Boundary-00=_NLMH6RO0000000000000 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable FWIW........... I installed a "mister" nozzle ahead of one of my evaporator cores. I have temperature sensors (cht probes) at the exit of each radiator, so I can read differences in delta T between the two.=0D =0D I used a 30 psi pump from a motor home water system. On the hottest of d= ays (all summer in Texas), the most benefit I ever saw was 1 to 2 degrees. I= 'm sure this could be improved with more nozzles, better placement, etc., bu= t I had much more success with modifying the cowl flap.=0D =0D Bill Eslick=0D =0D -------Original Message-------=0D =0D From: Rotary motors in aircraft=0D Date: Saturday, December 06, 2003 09:12:19 AM=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: spray bars=0D =0D > > ...snip... You would also need to figure out an adequate spray patter= n, =0D build/buy=0D the nozzles, water pump, water container, etc. < < =0D =0D I'd get one of those misting thingies they sell in the plant departments = of =0D the building supply stores, mount the business end in the duct well upstr= eam =0D from the rad. They put out a fog as opposed to a spray and as a result wi= ll =0D cool both the air and the fins at the same time. I'm sure figuring out a = =0D little pump would be a piece of cake, just use a windshield washer system from =0D the boneyard. The mister will actually keep the water consumption down...= I =0D know that it takes a fixed amount of water evaporating to provide a given= =0D amount of cooling, but I think that with both the air and the fins being = =0D cooled that kind of thing would provide a double whammy (as opposed to a blood =0D of water from a sprayer). Just some random thoughts from someone who hasn= 't =0D had anywhere near enough sleep in the last 24 hours =0D =0D --------------Boundary-00=_NLMH6RO0000000000000 Content-Type: Text/HTML; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 FWIW...........  I installed a "mister" nozzle ahead of o= ne of my evaporator cores.  I have temperature sensors (cht probes) = at the exit of each radiator, so I can read differences in delta T betwee= n the two.
 
I used a 30 psi pump from a motor home water system.  On the ho= ttest of days (all summer in Texas), the most benefit I ever saw was 1 to= 2 degrees.  I'm sure this could be improved with more nozzles, bett= er placement, etc., but I had much more success with modifying the cowl f= lap.
 
Bill Eslick
 
-------Original Message-------
 
Date: Saturday, De= cember 06, 2003 09:12:19 AM
Subject: [FlyRotar= y] Re: spray bars
 
> > ...snip... You would also need to figure out a= n adequate spray pattern,
build/buy
the nozzles, water pump, water= container, etc. < <

I'd get one of those misting thingies = they sell in the plant departments of
the building supply stores, mou= nt the business end in the duct well upstream
from the rad. They put = out a fog as opposed to a spray and as a result will
cool both the ai= r and the fins at the same time. I'm sure figuring out a
little pump = would be a piece of cake, just use a windshield washer system from
th= e boneyard. The mister will actually keep the water consumption down... I=
know that it takes a fixed amount of water evaporating to provide a = given
amount of cooling, but I think that with both the air and the f= ins being
cooled that kind of thing would provide a double whammy (as= opposed to a blood
of water from a sprayer). Just some random though= ts from someone who hasn't
had anywhere near enough sleep in the last= 24 hours <G>

<marv>
______________________= ______________________________
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