X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=EuKsUhUA c=1 sm=1 tr=0 a=FtUkoPZcf/lZNycUVsF1BQ==:117 a=x7bEGLp0ZPQA:10 a=BaKdtXMH_38A:10 a=y4yBn9ojGxQA:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=7g1VtSJxAAAA:8 a=7D9cRZIP_UbwjIz2zWoA:9 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=2WcYNkDC4Kkv67f6HqoA:9 a=nH-ZxEIfwNk4LCMz:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "William Schertz wschertz343@gmail.com" Received: from mail-lj1-f172.google.com ([209.85.208.172] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 664207 for flyrotary@lancaironline.net; Thu, 20 Aug 2020 08:55:39 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.208.172; envelope-from=wschertz343@gmail.com Received: by mail-lj1-f172.google.com with SMTP id g6so1929741ljn.11 for ; Thu, 20 Aug 2020 05:55:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=2II35gHPwE/m6eVUeHX+O9mglAukJi23I1UgIeY13Uk=; b=reAGimYMg5TdBVPQV5ANt6uhFGJ9CHjbmAOqKv5nU6ZD/O79IZO3NIMNg4+ZjpZ/vl b1azup/mnaECWuHk9GTTzvAz2akAjyypI9SimSy1Y8MtvphaaqTd/ixCKSZb3LWmHSsR th96Dh1F3Wi5PypEIjtumI2OnPaKFihfKbIJFqVS6j9WWBnoc9F46vrEU7QKiOFMVAEu 7KhBYJuaoP3AWvjT3IqsIAlr8obMxvQcu0kLrlW4vB5mNsSXuWec16cB2ZH9spPFrpBU JCmk5zVWQYTTfyVLZm/ds7/HgVjp4X77pDCVhaZWV7XsXkTEpglvBjN+Ai1BP2EEpmlo nqbQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=2II35gHPwE/m6eVUeHX+O9mglAukJi23I1UgIeY13Uk=; b=qJ+4aYB/8vB+CJJQvEvepDxmk0qAzRxHYTYxhte6CRfgZbRKhoJSoeGdS4CEZz66fM az7nQUxySHMNP2eqsspn2i1Td4dg3M7j3QMqwPkWJLOScUP2FnhJgrefMGJF1y4GWPxP jmSZfYir6WO3VavOWfxNSjH94XnkCCjcRRxcoP1RJkEO2zm4tpLJwEZlkvIVXHZgRNv+ /Q6Gdbm2a+klcr1Lz26/7iJm+8CSQjyAI6HdbWlvPg/P2sfOfAqJWqSDaSY69/qZRHdb TL2p3Tdt82pDT2hnV6eOIAaQGq4spBGYprVb0P/S+2RkSycwSf4UUosYU8Wen0DHT7ZD 9a2w== X-Gm-Message-State: AOAM531ElII4ufIi1k+Q2zs8WBrtk8oLQi3jq/pzjMQ2nk1ckaE3pLOz 6630tXwk2xtbLbrSzOSD0yFC6wilSHq1K9uHHkuwCo/t X-Google-Smtp-Source: ABdhPJwn4eBzuPGz4po6j4Hi8+6tnWbr1vJx0W4bxNbj8VnZzxEJLONfcVsILGWEDbnDercftlr9RajtT7OA3DvlJUI= X-Received: by 2002:a2e:81c2:: with SMTP id s2mr1577482ljg.10.1597928120347; Thu, 20 Aug 2020 05:55:20 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Thu, 20 Aug 2020 06:54:58 -0600 Message-ID: Subject: Re: [FlyRotary] Re: Water direction To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000fd70d005ad4ea190" --000000000000fd70d005ad4ea190 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable The water flow direction is important, the standard takes heat from the hot side and tries to keep the coild side near the same temperature to avoid the engine "becoming a banana". The impeller type pumps used in engines are primarily 'pushers' On Thu, Aug 20, 2020 at 2:11 AM Stephen Izett stephen.izett@gmail.com < flyrotary@lancaironline.net> wrote: > Hi Neil. > > Two thoughts I imagine that might create issues: > 1. Energy transfer down due to delta T being lower, increasing the danger > of nucleate boiling near the plugs > 2. Creating a higher differential between the hot and cold sides of the > engine producing increased expansion differences across the engine. > > Question: Do impeller pumps that we use suck and push equally well? My > guess is that they don=E2=80=99t. > If this doesn=E2=80=99t matter would it help with the physical layout to = suck the > water through rather than push it through? > > Cheers > > Steve Izett > > > On 20 Aug 2020, at 3:30 pm, 12348ung@gmail.com < > flyrotary@lancaironline.net> wrote: > > > > Gents, > > Looking today how to hook up my electric water pump. > The simplest is to send the water reverse to a standard pump. I do > understand the hot side and the colder side but with the water being > changes every 1 - 2 seconds, does this really matter? > > Thoughts? > > Neil. > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > --000000000000fd70d005ad4ea190 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
The water flow direction is important, the standard takes = heat from the hot side and tries to keep the coild side near the same tempe= rature to avoid the engine "becoming a banana". The impeller type= pumps used in engines are primarily 'pushers'

On Thu, Aug 20, 2020= at 2:11 AM Stephen Izett stephe= n.izett@gmail.com <fl= yrotary@lancaironline.net> wrote:
Hi Neil.

Two thoughts I imagine that might create issues:
1. Energy transfer down due to delta T being lower, increasing the danger o= f nucleate boiling near the plugs
2. Creating a higher differential between the hot and cold sides of the eng= ine producing increased expansion differences across the engine.

Question: Do impeller pumps that we use suck and push equally well? My gues= s is that they don=E2=80=99t.
If this doesn=E2=80=99t matter would it help with the physical layout to su= ck the water through rather than push it through?

Cheers

Steve Izett

> On 20 Aug 2020, at 3:30 pm, 12348ung@gmail.com <flyrotary@lancaironline.net> wrote: >
> Gents,
>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Looking t= oday how to hook up my electric water pump.=C2=A0 The simplest is to send t= he water reverse to a standard pump.=C2=A0 I do understand the hot side and= the colder side but with the water being changes every 1 - 2 seconds, does= this really matter?
> Thoughts?
>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0Neil.


--
Homepage:=C2=A0 http://www.flyrotary.com/
Archive and UnSub:=C2=A0 =C2=A0http://mail= .lancaironline.net:81/lists/flyrotary/List.html
--000000000000fd70d005ad4ea190--