[Vwdiesel] 1980 Rabbit running the treadmill tonight!
val at swamps.roc.ny.us
Sun Apr 17 09:11:15 EDT 2005
I'm running about two litres per hour average.
I have a couple of one cyl chinese built diesel generators. I've done some
load testing with them. The most relevant point is that I can run a load
between 3.5 and 4 kW, for 14 hours on 3.3 USgal. That works out to just
under one USquart per hour. I figure it's about 8 oz of fuel per kWhr.
These calculations are all approximate, but they're in the ballpark of
35-40% efficiency. I doubt the total system is actually running there,
but the estimates show it to be close. You're not going to get 80%
efficiency, and if you get 20%, you're probably too low, and something
At local diesel "pump" prices, that is about $0.16 US per kWhr, or almost
twice the marginal grid rate. Not bad, and obviously alternative fuels
will drive down the price.
Also, my generators are a little over 10hp, and I don't recall the hp
you said your will produce, but I figure it's 12-18 range. Inductive
amp meters are relatively cheap, in the clamp-on embodiment. Friends
have urged me to install torriods on my power lines, and adapt meters
to them, so that I can have continuous current monitoring. Since I
have two clamp-ons, I'm not in a hurry. I do have a $5 DVM, with a
freq meter setting, and I've monitored frequency output with that.
I am told, but have not verified that compressors, like in a refrigertor
can be very frequency sensitive, and 2 or 3 hertz difference can cause
reduced output and increased heat. I haven't tried to verify the theory
nor measure the results.
A really nice thing about your powerplant, is that at 1800 RPM, the
VW diesel should last a very very long time.
What are you doing with the waste heat from the engine?
More information about the Vwdiesel