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Converting Heat to Electrical Energy

07/16/2007 5:37 AM

Dear All,

Just curious about this topic. Is there any mechanism or material that is capable to change the heat energy into electrical energy? Any idea about this? Please help me....

AJ

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#1

Re: Heat energy to electrical energy..

07/16/2007 5:41 AM

This will do it.

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#2
In reply to #1

Re: Heat energy to electrical energy..

07/16/2007 6:41 AM

Hi,

Thanks for the reply. Can you explain more about the device that you posted. The name of the device will do so that I can search it on internet.

AJ

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#3
In reply to #2

Re: Heat energy to electrical energy..

07/16/2007 7:01 AM

Mamod 1335D Twin Cylinder Stationary Engine SP5
Generator & Light, with pressure gauge extra. £145.70
Pack: 260 x 210 x 195mm Gr.Wt. 1500g
Also available without dynamo* £115.00

Fuel source is methylated spirits.

Other demonstration steam engines are available (usual disclaimer).

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#11
In reply to #1

Re: Heat energy to electrical energy..

07/17/2007 12:12 AM

Wow, I guess Mr. ajzie79 was looking for something like a Peltier Plate elevated to minus 1, but please, you are joking, obviously.

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#4

Re: Heat energy to electrical energy..

07/16/2007 8:34 AM

that is what is going on in Coal / Diesel Thermal Power Plant !

In rthis heat to mechanical to electrical is done

If you mean direct convertion of heat to electricity

R & D is on

Normal PP use 300 kg Coal / hour / MW & CO2e is 5866 Tons/Yr/MW

Andy PP use 100 kg Coal/hour/MW & CO2e is 1955 Tons/Yr/MW

CER 5866-1955=3911 Tons/Yr/MW

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Associate

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#5

Re: Converting Heat to Electrical Energy

07/16/2007 9:08 AM

Here's a way for direct conversion from heat to electricity. Well, a small amount at least... Thermocouples.

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#6

Re: Converting Heat to Electrical Energy

07/16/2007 10:23 AM

Stirling engines do that job very efficiently from what I have read.


Maurizio

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#7

Re: Converting Heat to Electrical Energy

07/16/2007 10:56 AM

http://www.hi-z.com/websit03.htm

thermo electric generator, only 5% efficient though

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#8

Re: Converting Heat to Electrical Energy

07/16/2007 11:56 AM

When I worked for Carrier Air condition, they developed a system that took waste heat and processed it so it heated up the refrigerant and that in turn built up pressure and that pressure was fed to a generator which turned out electricity. The problem they had to work out was it was too efficient and it would crank out too much power.

After a few years they worked out the kinks and gave the design to UTPower. They sell it now, what I heard last was it was providing less then a one year payback on the system, depending on what you could buy power for.

If you need a name, let me know, I still have some contacts there.

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#9
In reply to #8

Re: Converting Heat to Electrical Energy

07/16/2007 9:12 PM

name & e mail add please

appan

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#17
In reply to #9

Re: Converting Heat to Electrical Energy

07/17/2007 9:16 AM

Write to me. This works

FBarbara@textron.com

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#10

Re: Converting Heat to Electrical Energy

07/16/2007 11:40 PM

Try googling "thermal electric generator". There are some quite unique devices, but are still at the r&d level. www.eneco.com has been on the verge of bringing their unit to the commercial stage for 2 years. Here's a site for generators, but the technology is rather old. http://www.globalte.com If you want to stay current on several technology areas at the university level you can subscribe to http://www.technologyreview.com/index.aspx. Look under the energy tab, and you will find some of the r&d projects.

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#12

Re: Converting Heat to Electrical Energy

07/17/2007 2:45 AM

Google or WiKi "Thermocouple"

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#13

Re: Converting Heat to Electrical Energy

07/17/2007 3:19 AM

Precisely yesterday I came across this news:

http://www.sciencedaily.com/releases/2007/06/070603225026.htm

But I must say I do not really understand neither believe it yet. Somehow, it seems to me that some thermodynamic law should be hindering this kind of achievements...

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Anonymous Poster
#14

Re: Converting Heat to Electrical Energy

07/17/2007 5:50 AM

One thing to keep in mind is that you won't get electricity or work from heat itself. You need the flow of heat from a warm spot to a cooler spot, i.e., a temperature difference.

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#15

Re: Converting Heat to Electrical Energy

07/17/2007 8:18 AM

99% of all electrical energy in the world is produced through the utilization of heat.

I believe you need to go to the library and look at books on electrical power generation.

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#16

Re: Converting Heat to Electrical Energy

07/17/2007 8:56 AM

Just twist an iron wire and a copper wire together at one end. Add heat to that end and attach a volt meter to the other end. You'll get a few millivolts.

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#18

Re: Converting Heat to Electrical Energy

07/17/2007 3:39 PM
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#19

Re: Converting Heat to Electrical Energy

07/17/2007 8:55 PM

Well, let me see, it's about 67% of all electrical energy produced in the world starts as thermal energy. That includes coal, crude oil ,diesel, nuclear, you name it. Electrical power is produced from kinetic energy, so any heat that can be converted to kinetic movement can produce electricity. What else do you want to know?.

I answered you seriously knowing that you are only joking, Nobody can make such a question seriously...

Wangito.

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Users who posted comments:

ajzie79 (1); andyappan (2); Anonymous Poster (4); HUX (1); jrpeck (1); Labyguy (3); Pragmatist (1); prbarry (1); PWSlack (2); Thermopylae (1); wangito (1); wbburris (1)

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