Re: GAS-L: Transportation Cost and Storage

[Peter Singfield <snkm@btl.net>]

At 10:58 PM 4/21/2002 -0300, you wrote:
>Dear Peter
>
>Just for your information, Capstones are actually quite efficient... in the
>order of about 30%. They rely on heat recuperation to get this.
>
>A serious problem with landfill gas is the fact that it contains silanes....
>organic silica compounds which plate out on the turbine wheels and/or cause
>erosion damage..
>
>Regards,
>
>Kevin

Thanks for the correction Kevin -- Gas engines get 40 plus percent -- on
methane rich fuels -- last forever -- and cost a fraction of a Capstone.

So -- only 33% more power (for a lot less headache) -- I stand corrected!!

I have heard that if you lose the heat recuperation unit -- replace that
with a steam boiler and steam turbine -- you can also break 40% over all
efficiencies.

Maybe they could do that??

Why do something simple and economic when you can build a plumbers
nightmare for a veritable fortune?? Why have something reliable -- when you
can be tearing it down doing expensive maintenance all the time??

Course -- they can cut down on that by throwing in some serious gas
cleaning stuff ahead of the turbine -- but that will cut down over all
efficiencies a bit more.

Still -- if you got lots of money -- and nothing better to do with it ---

Tom Taylor is the expert in this field of endeavor -- that is regarding
best gas to mechanical energy conversion units. What say Tom?? Would you
install a Capstone for dump gas??

Peter

>----- Original Message -----
>From: "Peter Singfield" <snkm@btl.net>
>To: <gasification@crest.org>
>Sent: Sunday, April 21, 2002 7:57 PM
>Subject: Re: GAS-L: Transportation Cost and Storage
>
>
>> At 02:57 PM 4/21/2002 -0500, James Fields wrote:
>> >>>>
>> We are currently investigating using the landfill  gas with capstone
>> microturbines.  It may be possible to use the waste heat  off the capstone
>> to aid in drying.  Cody Fields
>>
>> *****************
>>
>> No problems there -- with the over all efficiencies you will be getting
>> with that Capstone you'll have all kinds of waste heat handy.
>>
>> If you used an efficient gas engine (reciprocating) -- you would get much
>> less waste heat -- but twice or more electrical power. And cost a lot less
>> to do it -- probably run longer as well.
>>
>> There are a few gas engine experts on this list that could be more
>specific.
>>
>>
>> Peter Singfield -- Belize
>>


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