NedW

Champion Author
Indianapolis
Posts:5,620 Points:1,143,220 Joined:Mar 2008
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Message Posted: Nov 10, 2012 11:14:13 PM
I wonder if heat can be pumped up from the earth's upper mantle cost effectively. Nah.
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pulpwood

Champion Author
Mississippi
Posts:7,379 Points:1,859,605 Joined:Sep 2006
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Message Posted: Nov 10, 2012 10:44:33 PM
good if you can afford it.
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Eugenian

Champion Author
Oregon
Posts:1,867 Points:363,105 Joined:Oct 2009
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Message Posted: Nov 10, 2012 4:01:25 AM
Geothermal = free energy (after the non-trivial expense of drilling the well). Why are we not doing this on a huge scale?
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MAC48

Champion Author
Dallas
Posts:1,549 Points:767,755 Joined:Dec 2006
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Message Posted: Nov 10, 2012 12:22:17 AM
Geothermal cooling has been utilized by various civilizations for thousands of years as evidenced by the caves and caverns that have been used and are still being used to grow mushrooms, cure wines, cure cheeses, etcetera at a constant temperature of about 68 degrees. For residential purposes, all a geothermal heat pump does is force the exchange of air in a structure for the air that is in pipes or conduit running through a deep well/wells or a series of very narrow and long U shaped connected covered trenches.
The air that is brought back into the structure is conditioned air which is approximately at the desired temperature for cooling purposes in the warmer months having passed through cold water (wells) or cool earth ( covered trenches). Simultaneously the exhaust air is moved into the pipe or conduit system to be cooled in turn. Most geothermal heat pump installations also require a secondary heating source, normally electric resistance heat, to bring the air that emerges from the pipes or conduit up to the desired comfort level of say 70 or 72 degrees to provide warm air during the colder months.
In any case, geothermal installations require electricity to run the heat pump year around and to provide the additional air heating needed in cold months which means a standby generator is needed when the regular source of electricity is disrupted. Do not confuse a standard heat pump system with a geothermal heat pump system since they are really different applications. Standard heat pumps exchange structure air for outside air where as a geothermal heat pump uses the coolness of the ground beneath the surface several feet or in well water to cool recirculated structure air.
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Pramodsharma

Champion Author
Richmond
Posts:1,974 Points:388,140 Joined:Feb 2012
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Message Posted: Nov 9, 2012 7:26:44 PM
and I am still not understanding what Geothermal Engineering is?
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PDQBlues

Champion Author
San Diego
Posts:7,079 Points:1,449,300 Joined:Jan 2009
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Message Posted: Nov 9, 2012 6:05:31 PM
California has several geothermal plants, and they all seem to work quite well.
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sydb7

Champion Author
Atlanta
Posts:3,559 Points:1,919,895 Joined:Mar 2003
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Message Posted: Nov 9, 2012 1:43:27 PM
This is an alternate source that needs to be looked into!
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evowner

Champion Author
Salem
Posts:2,187 Points:360,235 Joined:May 2012
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Message Posted: Nov 9, 2012 10:13:17 AM
Technology has been around over a century.
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CocoPaz

Champion Author
Santa Barbara
Posts:2,380 Points:324,370 Joined:Jun 2012
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Message Posted: Nov 9, 2012 9:40:40 AM
Now THIS sounds interesting.
We are praying for those of you on the East Coast.
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geezrtek

Champion Author
Michigan
Posts:1,912 Points:431,960 Joined:Apr 2011
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Message Posted: Nov 9, 2012 8:48:16 AM
Let a hundred flowers bloom.
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skinsfan125

Champion Author
Virginia
Posts:1,557 Points:284,000 Joined:Jul 2010
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Message Posted: Nov 9, 2012 8:27:48 AM
good
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ModelWarships

Champion Author
Missouri
Posts:5,800 Points:1,233,060 Joined:Jul 2008
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Message Posted: Nov 9, 2012 7:44:10 AM
yuck
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tutaw

Champion Author
Kentucky
Posts:3,606 Points:843,720 Joined:Sep 2008
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Message Posted: Nov 9, 2012 7:39:49 AM
makes sense
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Tutootin

Champion Author
Toronto
Posts:10,126 Points:3,078,405 Joined:Jun 2004
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Message Posted: Nov 9, 2012 7:26:38 AM
mitchells, Great information. Thanks!
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Sethyl

Champion Author
Miami
Posts:1,758 Points:378,440 Joined:Oct 2009
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Message Posted: Nov 9, 2012 7:26:25 AM
test it on a small scale
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bar1035

Champion Author
Charlotte
Posts:9,167 Points:1,299,195 Joined:Aug 2006
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Message Posted: Nov 9, 2012 7:13:05 AM
See the packards42 comment for a price check
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40mpgsaturn

Champion Author
Wisconsin
Posts:2,500 Points:522,380 Joined:Jun 2011
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Message Posted: Nov 9, 2012 7:09:06 AM
You would still need a generator or back-up batteries.
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ss70

Champion Author
Detroit
Posts:9,669 Points:1,871,075 Joined:Sep 2005
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Message Posted: Nov 9, 2012 7:06:07 AM
It is toooooo expensive .
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mattymattmatt

All-Star Author
Scranton
Posts:890 Points:365,235 Joined:Mar 2011
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Message Posted: Nov 9, 2012 7:02:37 AM
ok.
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truckpdlr

Champion Author
Tucson
Posts:2,954 Points:1,097,070 Joined:Sep 2009
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Message Posted: Nov 9, 2012 6:59:05 AM
OK
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dopster

Champion Author
Toledo
Posts:7,281 Points:2,293,225 Joined:Aug 2004
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Message Posted: Nov 9, 2012 6:58:49 AM
Our geothermal resources should be taken more seriously.
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scooterbug1

Rookie Author
Tennessee
Posts:28 Points:3,985 Joined:Jul 2012
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Message Posted: Nov 9, 2012 6:55:14 AM
geothermal is not being taken seriously JMO
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zimowski

Champion Author
San Jose
Posts:6,676 Points:1,585,440 Joined:Nov 2007
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Message Posted: Nov 9, 2012 6:55:04 AM
Not a good idea in earthquake zones.
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packards42

Champion Author
Washington
Posts:6,447 Points:1,128,590 Joined:Feb 2005
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Message Posted: Nov 9, 2012 6:54:45 AM
We check out Geothermal systems and the price was 6 times high efficiency heatpumps.
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STLcardsfan

Champion Author
St. Louis
Posts:1,039 Points:1,374,560 Joined:Apr 2006
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Message Posted: Nov 9, 2012 6:53:18 AM
See if it pans out
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Diesel_Ram

Champion Author
Dallas
Posts:6,507 Points:1,519,435 Joined:Jan 2009
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Message Posted: Nov 9, 2012 6:51:15 AM
Dosen't seem like anything new?
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Kato51

Champion Author
Atlanta
Posts:7,270 Points:2,165,740 Joined:Jul 2005
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Message Posted: Nov 9, 2012 6:51:08 AM
Interesting. Why not give it a try.
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BillHeatherL

Champion Author
Alberta
Posts:7,648 Points:1,925,605 Joined:Apr 2007
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Message Posted: Nov 9, 2012 6:49:37 AM
geothermal systems have been around a long time
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Hangnail309

Champion Author
Manitoba
Posts:6,029 Points:1,678,155 Joined:Aug 2006
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Message Posted: Nov 9, 2012 6:49:31 AM
this system still relies on the electrical grid for power to operate.
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peanutsMN

Champion Author
Twin Cities
Posts:1,688 Points:386,865 Joined:Jul 2011
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Message Posted: Nov 9, 2012 6:48:22 AM
And needs electricity to run.
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gasman50

Champion Author
Portland
Posts:8,849 Points:2,410,460 Joined:Nov 2005
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Message Posted: Nov 9, 2012 6:47:47 AM
time will tell.......
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doncNJ

Champion Author
New Jersey
Posts:7,526 Points:1,506,070 Joined:Oct 2008
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Message Posted: Nov 9, 2012 6:47:05 AM
Do you remember dome homes?
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dm9667_23

Champion Author
Pennsylvania
Posts:1,221 Points:353,830 Joined:May 2008
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Message Posted: Nov 9, 2012 6:45:31 AM
interesting
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jimgraham

Champion Author
Akron
Posts:10,377 Points:1,980,935 Joined:Oct 2007
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Message Posted: Nov 9, 2012 6:45:21 AM
And the savings keep on coming - till the electric goes off. Unless you have a backup power supply for the pumps and fans.
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MrLuigi

Champion Author
Massachusetts
Posts:4,778 Points:967,660 Joined:Jun 2005
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Message Posted: Nov 9, 2012 6:44:44 AM
Geothermal is a very neat concept, saw a program on tv about it, would love to have it!
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rasprout

Champion Author
Tacoma
Posts:3,367 Points:1,222,535 Joined:Jun 2009
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Message Posted: Nov 9, 2012 6:44:38 AM
Interesting...
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speedraider

Champion Author
Orlando
Posts:3,678 Points:1,645,870 Joined:Nov 2005
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Message Posted: Nov 9, 2012 6:44:36 AM
ok
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Rick01

Champion Author
Utah
Posts:9,023 Points:2,363,550 Joined:Sep 2005
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Message Posted: Nov 9, 2012 6:43:20 AM
Wall Street will find a way to keep a lid on it.
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ruca2012

Champion Author
San Diego
Posts:1,069 Points:214,165 Joined:Oct 2012
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Message Posted: Nov 9, 2012 6:42:30 AM
oh well
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mitchells

Champion Author
Montreal
Posts:3,866 Points:1,126,085 Joined:Oct 2009
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Message Posted: Nov 9, 2012 6:42:14 AM
I LOVE my Geothermal system at my house, nothing located outside, no noise like an air sourced heat pump, and it works all summer and winter (doesn't stop working when the temps drop below -8C).
It also works much more efficiently than an air sourced system. In Winter, the ground is always above freezing, so it can easily pull more heat out of the ground, compared to outside air temps, where as the temps fall, they become less efficient until -8C, when they stop working completely.
In Summer, they are more efficient, because you're only trying to dump excess heat into the ground which is at about 15C, instead of trying to push heat out of the house when the outside temps are 30-40C, where the hotter it gets outside, the harder it is to push the heat outside, because of the temperature differences.
Only thing these people need to realize, is even with geothermal systems avoiding outside damage, it still doesn't work without electricity.
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Legend1500

All-Star Author
Midland Odessa
Posts:964 Points:569,025 Joined:Jun 2011
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Message Posted: Nov 9, 2012 6:42:05 AM
Interesting concept
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scrossi

Champion Author
Indiana
Posts:3,889 Points:1,049,465 Joined:Dec 2008
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Message Posted: Nov 9, 2012 6:41:48 AM
Time will tell.
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bluebird1

Champion Author
Toronto
Posts:15,740 Points:3,109,100 Joined:May 2004
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Message Posted: Nov 9, 2012 6:41:07 AM
Its a good point in favor of Geothermal(except its still driven by electrictiy - ie. a heat pump) that I've never seen or considered. Still the damage from storm/fire/flood would be minimal. Also, had'nt heard of oil tanks issue from Sandy either other than extremely washed out areas. ...and to many posters like Jammer asking 'what does it have to do with fuel prices' - It's obvious, if use less fuel for heating/cooling (yes there's electricity generated with the stuff too) then should leave more for transportation, which should help prices. If only we can solve the paper bbl/gal. stranglehold & get back to physical supply/demand changing prices.
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mnbeancounter

Champion Author
Minnesota
Posts:4,747 Points:1,063,790 Joined:Oct 2009
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Message Posted: Nov 9, 2012 6:41:04 AM
good news
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GGAlbo

Champion Author
Detroit
Posts:2,248 Points:1,886,300 Joined:Sep 2006
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Message Posted: Nov 9, 2012 6:40:55 AM
I like to see more geothermal energy!
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Don20

Champion Author
Oklahoma City
Posts:9,677 Points:2,620,605 Joined:Mar 2005
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Message Posted: Nov 9, 2012 6:40:20 AM
I will bet another Sandy, will screw that system up also. You can't mess with mother nature.. Its like tornados, you live with it or move..
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CorvairHaven

Champion Author
Cleveland
Posts:4,359 Points:1,454,915 Joined:Sep 2008
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Message Posted: Nov 9, 2012 6:40:15 AM
Stormproof? I don't think so.
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Tiernan2012

Champion Author
Sacramento
Posts:1,098 Points:177,235 Joined:Oct 2012
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Message Posted: Nov 9, 2012 6:40:14 AM
Nothing is completely storm proof. Geothermal could be a slightly more secure alternative, but costs need to be considered as well.
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kulwicki7

All-Star Author
Virginia
Posts:638 Points:268,845 Joined:Sep 2005
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Message Posted: Nov 9, 2012 6:40:01 AM
finally geothermal is being taken seriously!
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Chinto12

Champion Author
Illinois
Posts:1,031 Points:410,610 Joined:Jan 2012
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Message Posted: Nov 9, 2012 6:39:07 AM
apples and oranges
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