T&T: 8KW Westerbeke fuel burn?

[Pascal Gademer]

between the genset and the main, the one you can probably estimate in the 
most accurate way is the genset.  too many variables with the engine whether 
load, bottom conditions, etc... You should be able to get reasonably 
accurate number for the genset from wstbk...  depends on load obvioulsy but 
at medium load, you can probably guesstimate 3/4 GPH. even if you're off by 
25%, or 10 gallons in this case,  it's not going to drastically affect the 
number for your main.

depending on your fuel system, you can also run for a while, between fill 
ups, the genset on one tank and the main another one.  that's what i did on 
my boat early on to check my estimates...

pascal
maimi, fl
70 hatteras 53my
----- Original Message ----- 
From: "Keith" <keith@anastasia3.com>
To: "T&T List" <trawlers-and-trawlering@lists.samurai.com>
Sent: Friday, July 21, 2006 8:16 AM
Subject: T&T: 8KW Westerbeke fuel burn?


> I'm doing some long term fuel usage calculations on the Krogen 42. Problem
> is that I have engine use mixed with genset use, and would like to back 
> out
> the genset use to get the actual engine fuel burn. Here are the numbers so
> far since last fill:
>
> Fuel burned: 320 gallons
> Engine hours: 149
> Genset hours: 44
> Nautical miles traveled: 960
> Average engine RPM's: 1800
>
> This gives, with combined engine/genset use: about 3 NM/Gallon and 2
> gal/engine hr. burned. The actual engine only numbers will be different, 
> but
> I have no idea how much fuel the genset burns by itself. The engine is a
> Lehman 135. TIA!
>
>
> Keith
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