From: "Finn Lassen finn.lassen@verizon.net" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: Ed's spreadsheet
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
References: <list-706355@logan.com>
Message-ID: <e7f33b0d-6b50-9269-a380-3185b1a8e2c5@verizon.net>
Date: Fri, 25 Feb 2022 10:39:43 -0500
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Thanks Ed.

But 185.85 seems pretty detailed for a SWAG.
Any chance you got it from Bill Shertz's tests (which I unfortunately 
can't find the posts about)?

What determines "Cp Coolant"?
Heat transfer efficiency from engine to water and water to rad?

 From measuring the rims of the e-shaft pulley (122mm) and water pump 
pulley (112mm) it looks like the Renesis water pump runs a bit slower 
(factor 1.09 compared to your 1.18).

Should water flow be directly proportional to water pump RPM?

Finn

On 2/25/2022 10:07 AM, eanderson@carolina.rr.com wrote:
> Sorry, Finn.
>
> Too much water under the bridge, pretty sure I did not make it up out 
> of thin air.  I suspect I  visited some pump websites to arrive at a SWAG.
>
> Ed
>
> ------ Original Message ------
> From: "Finn Lassen finn.lassen@verizon.net 
> <mailto:finn.lassen@verizon.net>" <flyrotary@lancaironline.net 
> <mailto:flyrotary@lancaironline.net>>
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net 
> <mailto:flyrotary@lancaironline.net>>
> Sent: 2/24/2022 2:25:56 PM
> Subject: [FlyRotary] Ed's spreadsheet
>
>> Hi Ed,
>> From where did you get the 13B coolant flow numbers (Pump Factor)?
>> I want to be certain that I have adequate coolant flow.
>> Finn
>> ---
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    <div class="moz-cite-prefix">Thanks Ed.<br>
      <br>
      But 185.85 seems pretty detailed for a SWAG.<br>
      Any chance you got it from Bill Shertz's tests (which I
      unfortunately can't find the posts about)?<br>
      <br>
      What determines "Cp Coolant"?<br>
      Heat transfer efficiency from engine to water and water to rad?<br>
      <br>
      From measuring the rims of the e-shaft pulley (122mm) and water
      pump pulley (112mm) it looks like the Renesis water pump runs a
      bit slower (factor 1.09 compared to your 1.18).<br>
      <br>
      Should water flow be directly proportional to water pump RPM?<br>
      <br>
      Finn<br>
      <br>
      On 2/25/2022 10:07 AM, <a class="moz-txt-link-abbreviated" href="mailto:eanderson@carolina.rr.com">eanderson@carolina.rr.com</a> wrote:<br>
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      <div>Sorry, Finn.</div>
      <div><br>
      </div>
      <div>Too much water under the bridge, pretty sure I did not make
        it up out of thin air.  I suspect I  visited some pump websites
        to arrive at a SWAG.</div>
      <div><br>
      </div>
      <div>Ed</div>
      <div><br>
      </div>
      <div>------ Original Message ------</div>
      <div>From: "Finn Lassen <a href="mailto:finn.lassen@verizon.net"
          moz-do-not-send="true">finn.lassen@verizon.net</a>" &lt;<a
          href="mailto:flyrotary@lancaironline.net"
          moz-do-not-send="true">flyrotary@lancaironline.net</a>&gt;</div>
      <div>To: "Rotary motors in aircraft" &lt;<a
          href="mailto:flyrotary@lancaironline.net"
          moz-do-not-send="true">flyrotary@lancaironline.net</a>&gt;</div>
      <div>Sent: 2/24/2022 2:25:56 PM</div>
      <div>Subject: [FlyRotary] Ed's spreadsheet</div>
      <div><br>
      </div>
      <div id="x93d47c9a0934455" class="plain">
        <blockquote cite="list-703740@logan.com" type="cite"
          class="cite2">
          <div class="plain_line">Hi Ed,</div>
          <div class="plain_line"> </div>
          <div class="plain_line">From where did you get the 13B coolant
            flow numbers (Pump Factor)?</div>
          <div class="plain_line"> </div>
          <div class="plain_line">I want to be certain that I have
            adequate coolant flow.</div>
          <div class="plain_line"> </div>
          <div class="plain_line">Finn</div>
          <div class="plain_line"> </div>
          <div class="plain_line"> </div>
          <div class="plain_line">---</div>
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