Thread
:
O/T: And The Creek Keeps Ris'n
View Single Post
#
588
Posted to rec.woodworking
[email protected]
external usenet poster
Posts: 18,538
And The Creek Keeps Ris'n
On Wed, 30 May 2012 06:52:03 -0500, Leon lcb11211@swbelldotnet
wrote:
On 5/29/2012 11:38 PM,
wrote:
On Tue, 29 May 2012 22:38:21 -0500, Leonlcb11211@swbelldotnet
wrote:
On 5/29/2012 7:02 PM,
wrote:
On Tue, 29 May 2012 13:48:20 -0700, "Lew Hodgett"
wrote:
"Just Wondering" wrote:
There is no other realistic alternate energy source for private
motor vehicles.
-------------------------------
Truck and bus fleets work quite well and at lower cost using natural
gas as opposed to #2 diesel.
That's some low hanging fruit to get started.
Lew
Waterloo regional transit had a fleet of natural gas busses, and the
maintenance costs totally killed the project - they went back to
deisel, and now have quite a few hybrid deisels. The extra engine
maintenance on the CNG busses outstripped any possible fuel savings.
I am seriously curious as to why maintenance costs were higher. Do you
know?
The converted diesel engines were failing at a very high rate. Don't
know if it ws due to lubrication issues, valve issues, or what - but
the engines were apparently good for about 1/4 the normal life of a
diesel. The cyl heads are heavily modified and they need spark
ignition - all of which could have been involved in the failures. And
the intitial conversion price is gawdawfull too!!!
DOH, I was not thinking diesel. Yeah, I would imagine converting diesel
to natural gas would have its issues.
I suspect way too much compression was being developed unless the heads
allowed for a larger combustion chamber.
I suspect Waterloo regional transit is a government transportation system?
It is "city transit" - Region of Waterloo encompasses Waterloo,
Kitchener, Cambridge, Woolwich Township, and Wilmot Township. and the
engines were built BY CUMMINS as natural gas engines - using mostly
off-the-shelf diesel engine parts - but with a modified cyl head and
other parts. NOT Field Modified.
Reply With Quote
[email protected]
View Public Profile
Find all posts by
[email protected]