Posted by Day Brown on June 17, 2009, 4:25 pm
Morris Dovey wrote:
http://www.iedu.com/DeSoto/Projects/Stirling/Heat.html
>
> If I'd used the mirror material crosswise instead of lengthwise, it'd
> have produced the same amount of heat energy at somewhere near 1450F -
> which would have required something a bit less "melty" than the cheap
> Sched 40 PVC for the body.
>
> (Theoretical) Carnot efficiency with a 1450F hot head and an 80F cold
> head isn't too bad, but I doubt anyone would want to mount an adequately
> sized trough on their tractor.
>
> Might be fun to hear the tracker servos sing at the end of every row,
> tho. :)
YMMV. But I dont see enuf power in a mobile sized collector to provide
the power a tractor needs for even a double bottom moldboard.
I saw a U of GA study on sorghum. 100-120 gallons of ethanol per acre on
about 6 gallons of ethanol fuel. But you'd need good soil and enuf water
for it to be juicy at harvest.
I'm surprised there's not more work on parabolic collectors for solar
electric generators.
Posted by Malcom \"Mal\" Reynolds on June 5, 2009, 8:15 am
In article
<h09g1m$su$@news.eternal-september.org
>,
"Stormin Mormon"
wrote:
> Instead of doing the liberal "live on nothing, and drive a
> gocart" routine. Lets get rid of the politicians who are
> preventing us from drilling our own oil. Let the free market
> rule.
The free market has spoken. We got rid
of saturn, oldsmobile, the hummer, and
with luck chrysler.
Posted by Lord Gow333, Dirk Benedict's n on June 6, 2009, 4:11 am
> In article
> <h09g1m$su$@news.eternal-september.org
>>,
> "Stormin Mormon"
> wrote:
>> Instead of doing the liberal "live on nothing, and drive a
>> gocart" routine. Lets get rid of the politicians who are
>> preventing us from drilling our own oil. Let the free market
>> rule.
> The free market has spoken. We got rid
> of saturn, oldsmobile, the hummer, and
> with luck chrysler.
Not the free market.
LG
--
Failure is the opportunity to begin again more intelligently. - Henry Ford
Posted by None4U on June 6, 2009, 1:54 am
> Instead of doing the liberal "live on nothing, and drive a
> gocart" routine. Lets get rid of the politicians who are
> preventing us from drilling our own oil. Let the free market
> rule.
I dont buy it, We shouldn't drill at all. We should fill the coffers and
reserves with oil from elsewhere. Pump the crap back into the wells if
necessary. We should have about a decade in reserves. Save ours until
everyones is used up. Then drill for ours when everyone else has used theres
up.
> --
> Christopher A. Young
> Learn more about Jesus
> www.lds.org
> .
> Seems like it mite solve a common problem with steam, that
> you would not
> have to wait for the head of steam, but leave at once, then
> while in
> route the steam engine comes on to recharge the batteries.
> And of course, if the price of gas rises, it'll burn wood.
>
Posted by Lord Gow333, Dirk Benedict's n on June 6, 2009, 4:12 am
>> Instead of doing the liberal "live on nothing, and drive a
>> gocart" routine. Lets get rid of the politicians who are
>> preventing us from drilling our own oil. Let the free market
>> rule.
>>
> I dont buy it, We shouldn't drill at all. We should fill the coffers and
> reserves with oil from elsewhere. Pump the crap back into the wells if
> necessary. We should have about a decade in reserves. Save ours until
> everyones is used up. Then drill for ours when everyone else has used
> theres up.
Quiet, the adults are speaking.
LG
--
Drill Alaska!
Drill offshore!
Build refineries!
Build reactors!
And shut the hell up!
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> If I'd used the mirror material crosswise instead of lengthwise, it'd
> have produced the same amount of heat energy at somewhere near 1450F -
> which would have required something a bit less "melty" than the cheap
> Sched 40 PVC for the body.
>
> (Theoretical) Carnot efficiency with a 1450F hot head and an 80F cold
> head isn't too bad, but I doubt anyone would want to mount an adequately
> sized trough on their tractor.
>
> Might be fun to hear the tracker servos sing at the end of every row,
> tho. :)