Re: [MV] CNG as alternative fuel??

From: MV (MV@dc9.tzo.com)
Date: Mon Sep 26 2005 - 20:39:18 PDT


The big problem with CNG is that the energy density of the stored fuel
is small compared with gasoline and diesel. So you might need a 100
gallon high pressure tank to equal a 35 gallon diesel tank. That can be
a big problem for a car, not so big for a duece or 5 ton. A lot of
cities are going to CNG use in government vehicles. Propane conversions
are a lot cheaper since the pressures are a lot lower. Also filling up
a CNG vehicle can be tough on the open road, although there are a few
filling locations that I have seen at truck stops.

Dave

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Michael S. Nichols wrote:
> Hello All,
>
> Propane thread is interesting, but has anyone looked into converting to
> CNG (compressed natural gas), the fuel most of us urban and suburban
> dwellers heat our homes and cook with??? I understand that it is
> cheaper than propane, about US$0.60 on it..... The key is a US$1500.00
> pump to allow fill ups of a CNG tank in our vehicles from our house CNG
> system, plus a US$3000.00 conversion to our vehicles..... This
> conversion is done cheaper in Canada, and much cheaper in Brazil.
> Thoughts or information, anyone??? Thank you.
>
> Regards,
>
> Mike Nichols, Atlanta GA 30306
> Member GA MVPA
> M151A2 project
>
>
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