X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=G+5i7Os5 c=1 sm=1 tr=0 a=aUb0gpmLtesR8ZTSUQD2JA==:117 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=x7bEGLp0ZPQA:10 a=Fee85h93u3AA:10 a=J70Eh1EUuV4A:10 a=NBQB4eTgj2wA:10 a=Ia-xEzejAAAA:8 a=o1OHuDzbAAAA:8 a=pjdaNNIBAAAA:8 a=pGLkceISAAAA:8 a=_6GpL_ENAAAA:8 a=7g1VtSJxAAAA:8 a=RhD7-pdqTqhVgL8b45wA:9 a=fJBav-MYgEvdhTYc:21 a=PqUfC8AsTjqHGdSj:21 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=AzyXF-W3HlgGGq96:21 a=QVK3ATFPoOTkEDLD:21 a=Cv_tOHV18hjx_geK:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=5YQ6H4ZxyGn-KoBYtt8s:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "lehanover lehanover@aol.com" Received: from sonic317-26.consmr.mail.bf2.yahoo.com ([74.6.129.81] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 12936850 for flyrotary@lancaironline.net; Sun, 08 Sep 2019 14:02:50 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.6.129.81; envelope-from=lehanover@aol.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aol.com; s=a2048; t=1567965753; bh=lzQN84vLVuOBq03L+lxrB9NX9FuTMsEKigyGxaKaCGE=; h=Date:From:To:In-Reply-To:References:Subject:From:Subject; b=Qow6YvIVcK7nKOVvt1EPQZLl5NjD0aPNKyQIlXLdyeoo3puVuBwhQ3A9Qz69OUg+aArKUAyGEvKylraW69NIP3xgBGzVdI7MaRVHsNC1nbbDwWlee3KNj/NtCV1dMGfzdyA7rQ0sGfcWG+8+HKmFwcjX44tdhzYarDglkVzp4TapQhxCzgvATMlDfX1OJ/mJKvE2kRoIzSvQEmZ2b3Zvh63DQh7Pcr9qxoU+6DD3fcCGD7lV9iK5ZvYdxE0HMeD523gnphwJArYQbFRlgGrU35baa/fMfG8ffyTCZ2lixGV/YYyhzo1I2vrS13hDXyhlQxQP/kuptuwpFVPml1PJBw== X-YMail-OSG: hmOFvEwVM1nD9OodO_WuJr20oEEO4HtIzl7GEHP7Loe.vd4YHM25_iRTOrsI3RH Ys11YeOeJm9hpCeD_P2ork1RP1mzRipkNay_TIo560dmFVmMaJKzsDTuCO880uvojj0gThnYICIG 3t0PiUVYBr1Y3wD6u61iWMdkUfRCeGb2BgnhwSgE5Mi49YppHuEg_ghTn_bZNuz5OD4vfqrjMgA8 M8vwHDU911IkSd4a799uveLH2tut8OWuQNdLdGt2RIZLLjCnxqj3vpza0RCAIOYN9t7JYKBG6SGH JA41cqOiz07aP3e_CEOS7JVjw0_Q3KxPp59ClmJ12TNB1h4gyjp_ROY9msyMDPMtaAML_Ij9qTfk 412WPO7IMDJJoq_1iSZVTcwYF_bOpOXNVKpyxd8k_3Vwx8LlvsqKDw9pOzwmV6pWsOLghZQeE.89 hoXLPWCNXELTR8mN4iqgkOxbzX41M7ErMawzaQG8X0OwDBhDmWsHNeTZ0qrL2PO2fcGYKx_jTcZn TjxrPmLg6jq_gwLIWiBMgTfK_wLk4rSs3_7nF6j.vkbtPGyvZDY8HGukMYiThLZr34in9jY0uZbi UVe3j9jN95pSP0ZH9fJEA9pUTmj7A77o.ZL9Fr._k.Ep4pcteJ4fC_AtmEkOIaLmsP2QLJTqqhUG .lDPQ21aL5fqUOoF9wxSb4u_96o4RgR.n_l.iHiWcfJBKgXX.gTaS5QSAbJ4bDmntPiKBJEwV3wQ GlBO7p9abcNFk4zGJjB6c7aCEDNLG9_YstRkPPpRjRt.CIbwBMfU9h3uBk4KSelGi6US1ffkPizF DiI1ElP6s7iFO.lLRWLir7ZNWcP5wKzmOKThrL2Ra97qSEZJ9jVEaVzF6Y455E8HOOC2uz2B1gYw ZE92QvAGIVc.yOzI6OBn9dtjeFiISeHCS6Nsj.Zy7i3Oj5hbgzLlbjrVO13CBJFU8SFB91zWA_.8 M4vbwKdfIpQueqtEfCyA_npMnfzpDPc3WBmXuJ89TM.q9iwarDOCmv2RQXSYLRvKZI6xfBk9EGq8 zvFzt.eUNs9KyLWoLR0DVG35gLK80qz2A6lFvZwgPW6s_af27iASqkWthCqmoYwN.IfCqLOrbQrt b2NRRTZ9Fo2wfvx5M1WaB6oTxpFUYB.rSyjIx4FQ.hrzgCc7g_3zMD2jtKp3Xzl_Q2s9xk7xrNgL rGAY.GwswXY_tOAvYWO3e5WM.LkN2TgIjrfH0D.kcvmE_MfujoPmoRmJ7D.ViEBeoZ32nAhc- Received: from sonic.gate.mail.ne1.yahoo.com by sonic317.consmr.mail.bf2.yahoo.com with HTTP; Sun, 8 Sep 2019 18:02:33 +0000 Date: Sun, 8 Sep 2019 18:02:30 +0000 (UTC) To: flyrotary@lancaironline.net Message-ID: <1200382324.2704152.1567965750536@mail.yahoo.com> In-Reply-To: References: Subject: Re: [FlyRotary] Re: Evap cores MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_2704151_1105618258.1567965750534" X-Mailer: WebService/1.1.14303 aolloki Apache-HttpClient/4.5.7 (Java/1.8.0_144) Content-Length: 11603 ------=_Part_2704151_1105618258.1567965750534 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Pin together sheets of Styrofoam to account for the maximum space available= in your installation.Use round tooth pics and tape. Trim to fit. Measure a= nd order a special build. You can have any size inlet and outlet. And other= special needs. I used Griffin. Very nice people. Never say airplane.Lynn E= . Hanover In a message dated 9/8/2019 11:00:05 AM Eastern Standard Time, flyrotary@la= ncaironline.net writes: Finn, Dave=E2=80=99s advice is spot on. Most of these companies will build what y= ou need for only a little more money then retail. You tell them core / tank= size, fitting size, air bleed, drain location, additional angle for defuse= r mounting, etc.. Build a mock-up out of cheap thin foam board, 5 minute ep= oxy and toothpicks to determine fit up. Thrift store foam works great for a= bout $1.00 a sheet. Lightweight and sturdy. Make a sketch for the manufactu= re to build the heat exchanger.=20 500-600 cu in is a good range for a non-boosted two rotor. With a reasonabl= e duct and defuser you can expect between 80F-110F air delta T. Some have h= ad better results. This is where Ed=E2=80=99s workbook is very useful and h= elps set expectations for core and inlet size. If you have room I would sta= rt with a 25-30% duct opening and reduce if possible during flight testing.= Once you have a performance baseline it=E2=80=99s much easier to reduce th= e opening then enlarge it. Or use a cowl flap.=20 Ed=E2=80=99s workbook estimates BTU rejection for the core face so I assume= it=E2=80=99s for the first cubic inch.=C2=A0 My 2.75=E2=80=9D cores with a= n 82F delta T preform about 35% better than the workbook prediction.=20 Bobby=20 Sent from my iPad > On Sep 8, 2019, at 12:59 AM, Finn Lassen finn.lassen@verizon.net wrote:> > I think the "Scirocco" style refers to no f= iller cap.> > There are a lot of "Scirocco" rads at fairly low prices, but = they appear to be thin; nowhere near the 500 cu inch we're looking for. Als= o, most of the racing radiators have 1.25 to 1.75" inlets/outlets. I wonder= how you found yours with 1.1" inlets/outlets. ( https://www.ebay.com/itm/2= 90600743649?ssPageName=3DSTRK:MEWAX:IT&_trksid=3Dp3984.m1423.l2649 )> > But= would like to know what Dennis uses.> > Finn> >>> On 9/6/2019 10:30 PM, Ch= arlie England ceengland7@gmail.com wrote:>>> On 9/6/2019 8:16 PM, Finn Lass= en finn.lassen@verizon.net wrote:>>> Not sure why I was so stuck on only pu= tting evap cores in the cowl cheeks.>>> >>> Evap cores are cheaply availabl= e.>>> >>> I'm thinking they could easily be stacked under the engine as wel= l. (Not making then 8" thick, but flat end to flat end, or tank-to-tank).>>= > >>> One way would be to join them flat end to flat end with an o-ring. Th= at would put them in series. 13" wide and 18" long.>>> >>> The other way wo= uld be tank against tank, which would enable parallel (but more hoses). 9" = wide and 26" long.>>> >>> I don't remember earlier postings on this, but wo= uld 3/4" ID hoses be enough for a series configuration? (200 max HP Renesis= , more likely 180 HP)>>> >>> Finn>> Tank to tank makes an efficient diffuse= r difficult.>> >> There are cheaper versions of the Scirocco rad with 2" th= ick cores, if you think that would be enough core volume. Dennis H. is usin= g a Scirocco for his Renesis; perhaps he'll see this thread & tell you his = core thickness.>> >> Charlie>> >> Charlie>> >> --->> This email has been ch= ecked for viruses by Avast antivirus software.>> https://www.avast.com/anti= virus>> >> >> -- >> Homepage:?? http://www.flyrotary.com/>> Archive and UnS= ub: http://mail.lancaironline.net:81/lists/flyrotary/List.html> > > --> Hom= epage:=C2=A0 http://www.flyrotary.com/> Archive and UnSub:=C2=A0 http://mai= l.lancaironline.net:81/lists/flyrotary/List.html=C2=A0=C2=A0 --Homepage:=C2=A0 http://www.flyrotary.com/Archive and UnSub:=C2=A0 http:/= /mail.lancaironline.net:81/lists/flyrotary/List.html ------=_Part_2704151_1105618258.1567965750534 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit
Pin together sheets of Styrofoam to account for the maximum space available in your installation.
Use round tooth pics and tape. Trim to fit. Measure and order a special build. You can have any size inlet and outlet. And other special needs. I used Griffin. Very nice people. Never say airplane.
Lynn E. Hanover

In a message dated 9/8/2019 11:00:05 AM Eastern Standard Time, flyrotary@lancaironline.net writes:

Finn,

Dave’s advice is spot on. Most of these companies will build what you need for only a little more money then retail. You tell them core / tank size, fitting size, air bleed, drain location, additional angle for defuser mounting, etc.. Build a mock-up out of cheap thin foam board, 5 minute epoxy and toothpicks to determine fit up. Thrift store foam works great for about $1.00 a sheet. Lightweight and sturdy. Make a sketch for the manufacture to build the heat exchanger.

500-600 cu in is a good range for a non-boosted two rotor. With a reasonable duct and defuser you can expect between 80F-110F air delta T. Some have had better results. This is where Ed’s workbook is very useful and helps set expectations for core and inlet size. If you have room I would start with a 25-30% duct opening and reduce if possible during flight testing. Once you have a performance baseline it’s much easier to reduce the opening then enlarge it. Or use a cowl flap.

Ed’s workbook estimates BTU rejection for the core face so I assume it’s for the first cubic inch.  My 2.75” cores with an 82F delta T preform about 35% better than the workbook prediction.

Bobby

Sent from my iPad

> On Sep 8, 2019, at 12:59 AM, Finn Lassen finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:
>
> I think the "Scirocco" style refers to no filler cap.
>
> There are a lot of "Scirocco" rads at fairly low prices, but they appear to be thin; nowhere near the 500 cu inch we're looking for. Also, most of the racing radiators have 1.25 to 1.75" inlets/outlets. I wonder how you found yours with 1.1" inlets/outlets. ( https://www.ebay.com/itm/290600743649?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 )
>
> But would like to know what Dennis uses.
>
> Finn
>
>>> On 9/6/2019 10:30 PM, Charlie England ceengland7@gmail.com wrote:
>>> On 9/6/2019 8:16 PM, Finn Lassen finn.lassen@verizon.net wrote:
>>> Not sure why I was so stuck on only putting evap cores in the cowl cheeks.
>>>
>>> Evap cores are cheaply available.
>>>
>>> I'm thinking they could easily be stacked under the engine as well. (Not making then 8" thick, but flat end to flat end, or tank-to-tank).
>>>
>>> One way would be to join them flat end to flat end with an o-ring. That would put them in series. 13" wide and 18" long.
>>>
>>> The other way would be tank against tank, which would enable parallel (but more hoses). 9" wide and 26" long.
>>>
>>> I don't remember earlier postings on this, but would 3/4" ID hoses be enough for a series configuration? (200 max HP Renesis, more likely 180 HP)
>>>
>>> Finn
>> Tank to tank makes an efficient diffuser difficult.
>>
>> There are cheaper versions of the Scirocco rad with 2" thick cores, if you think that would be enough core volume. Dennis H. is using a Scirocco for his Renesis; perhaps he'll see this thread & tell you his core thickness.
>>
>> Charlie
>>
>> Charlie
>>
>> ---
>> This email has been checked for viruses by Avast antivirus software.
>>
>>
>> --
>
>
> --
  
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