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On August 19, 2019 at 8:54 AM
"eanderson@carolina.rr.com" <flyrotary@lancaironline.net>
wrote:
Hi Bobby,
Yes, I still enjoy andf monitor the rotary chat even if I
am no longer flying behind one.
Talk about a blast from the past. I had forgotten about
that cooling spreadsheet.
I have unprotected (I think) the 2nd sheet. At least I was
able to change the airspeed fiactor from 0.3 to any value.
Not certain if that takes care of the problem but its a
start.
attached is the unprotected copy. Hope it may be of use as
an educated guesstimate.
Best Regards
Ed
Edward Anderson
Anderson Electronic Enterprises LLC
305 Reefton Rd
Weddington, NC 28104 -0569
704 821 7595
------ Original Message ------
Sent: 8/17/2019 12:23:54 PM
Subject: [FlyRotary] Ed Anderson's Cooling Workbook
I’m reposting Ed
Anderson’s workbook from a long time ago that may help set
cooling system expectations. Some of the fields are
password protected and duct airspeed is locked down at
30%. Hopefully Ed Anderson is still monitoring this thread
and can share his expertise and password to allow
modification to cell C2 on the Cooling Calculations
worksheet. Even without changed cell C2 we should be able
to estimate BTU rejection by calculating the duct airspeed
percentage. At 10%, BTU rejections should about 1/3 of the
calculated value at 30%. Also my 2.75” coolant cores
preform about 35% better than calculated when comparing
air Delta T, fuel burn / HP.
Bobby