X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-bw0-f226.google.com ([209.85.218.226] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with ESMTP id 4024126 for flyrotary@lancaironline.net; Wed, 16 Dec 2009 14:11:29 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.218.226; envelope-from=msteitle@gmail.com Received: by bwz26 with SMTP id 26so1043494bwz.27 for ; Wed, 16 Dec 2009 11:10:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=NmWxyS6iaJjm8XJ2+MAcEQb3p64C0bLgutOpkOjfvCs=; b=MyWqVp9eO2mRD38izjibIUK1t/FvLCLoA3xPorNV2TFleKUrMsKN8hGCL+Bx47tb6e uZnkaxBJxWyvS2VWBdxX+kqtw6FzxfXj5h3+1r7dNRRjampXDWcwnC5CDjOd5jtxPy/T EuKCnMwzdmUorGUfNk9s1wU2M6jwY0YCGjmTg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=kJoQooK6Qo9C8YFIPIFK3iL1PcUL1blEbEJKydS38sSOAdPmHI7qvzQA1944fMh8rQ L9zKf9AnQl14LDBoyrOIf+XWk1fU1HPGxHqysUsGIePRCt8yS6P29siJQXZVrzx4+2Ob has2RLrvdj5ZOIG7i98IWMRiOhUuspdTSaKvc= MIME-Version: 1.0 Received: by 10.204.152.27 with SMTP id e27mr739865bkw.192.1260990654105; Wed, 16 Dec 2009 11:10:54 -0800 (PST) In-Reply-To: References: Date: Wed, 16 Dec 2009 13:10:54 -0600 Message-ID: <5cf132c0912161110gc2bdfc8u9c9e93247c0ee470@mail.gmail.com> Subject: Re: [FlyRotary] Re: Cabin Heat (Was Oil Cooler) From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015175d03a600ca31047add44c2 --0015175d03a600ca31047add44c2 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Greg, Yes, those are some of the same reasons why I ended up with a small custom automotive type heater core w/fan. I was thinking that since my new muffle= r is made of inconel, and with a CO detector, it would be safe to pull some heat from around the tangential muffler. An alternative may be to build a new automotive style heater but pay closer attention to the weight. Mark On Wed, Dec 16, 2009 at 12:32 PM, Greg Ward wrote= : > Hey Mark; > We've been looking at the same things with our install. We talked to our > exhaust guy, and he feels that with the exhaust temps that these rotaries > have, that it might not be a good idea, (the muff). Next step was hot > water, plumbing, and a heater core inside some where, which was sort of a > negative idea. We kept all of our cooling lines exterior, so that a cool= ant > leak wouldn't happen inside at about 10K feet, and 200+ knots, not a good > scenario. J.C. Whitney has a small electric heater that has some > possibilities, so we are looking into that and some other ideas. > Greg Ward > Lancair 20B N178RG in Progress > > ----- Original Message ----- > *From:* Mark Steitle > *To:* Rotary motors in aircraft > *Sent:* Tuesday, December 15, 2009 1:41 PM > *Subject:* [FlyRotary] Cabin Heat (Was Oil Cooler) > > Jeff, > I'm considering going to a heat muff since there is sooooooo much exhaus= t > heat that's just going to waste. I was going to incorporate it into the > heat shield of my newest muffler design. Of course, I'll need to add a C= O > detector in the cabin for safety. > > Mark > > On Tue, Dec 15, 2009 at 3:24 PM, Jeff Whaley wrote= : > >> Well with 3 coolers already, I didn=92t want to add a heater core and a= ll >> the plumbing =96 I may move my scavenge point from oil cooler to water >> radiator as it is below the engine (uphill for warm air) and closer to t= he >> firewall (fewer corners to turn). I picked the oil cooler because at the >> time my oil temp was higher than water temp =96 now it=92s the other way= around >> =85 also the outlet of oil cooler as installed is less likely to get >> contaminated with exhaust fumes. >> >> Jeff >> > --0015175d03a600ca31047add44c2 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
Greg,
=A0
Yes, those are=A0some of=A0the same=A0reasons why I=A0ended up with=A0= a small custom automotive type heater core w/fan.=A0 I was thinking that si= nce my new muffler is made of inconel, and with a CO detector, it would be = safe to pull some heat from around the tangential muffler.=A0=A0
=A0
An alternative may be to build a new automotive style heater=A0but pay= closer attention to the weight.
=A0
Mark=A0

On Wed, Dec 16, 2009 at 12:32 PM, Greg Ward <gregw@onestopd= esign.biz> wrote:
Hey Mark;
We've been looking = at the same things with our install.=A0 We talked to our exhaust guy, and h= e feels that with the exhaust temps that these rotaries have, that it might= not be a good idea, (the muff).=A0 Next step was hot water, plumbing, and = a heater core inside some where, which was sort of a negative idea.=A0 We k= ept all of our cooling lines exterior, so that a coolant leak wouldn't = happen inside at about 10K feet, and 200+ knots, not a good scenario.=A0 J.= C. Whitney has a small electric heater that has some possibilities, so we a= re looking into that and some other ideas.
Greg Ward
Lancair 20B N178RG in P= rogress
----- Original Message -----
Sent: Tuesday, December 15, 2009 1:4= 1 PM
Subject: [FlyRotary] Cabin Heat (Was= Oil Cooler)

Jeff,
I'm considering=A0going to=A0a heat muff since there is sooooooo m= uch exhaust heat that's just going to waste.=A0 I was going to incorpor= ate it into the heat shield of my newest muffler design.=A0 Of course, I= 9;ll need to add a CO detector in the cabin for safety.
=A0
Mark

On Tue, Dec 15, 2009 at 3:24 PM, Jeff Whaley <jwhaley@datacast.com> wrote:

Well= with 3 coolers already, I didn=92t want to add a heater core and all the p= lumbing =96 I may move my scavenge point from oil cooler to water radiator = as it is below the engine (uphill for warm air) and closer to the firewall = (fewer corners to turn). I picked the oil cooler because at the time my oil= temp was higher than water temp =96 now it=92s the other way around =85 al= so the outlet of oil cooler as installed is less likely to get contaminated= with exhaust fumes.

Jeff=


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