11-06-2018, 02:30 PM
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#21 (permalink)
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home of the odd vehicles
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Quote:
Originally Posted by oil pan 4
Let's say this is for a liquid cooled stationary backup generator and size, weight aren't really a problem.
Any idea how long thy last?
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Cost?
Also How do you get the 300c necessary to fire these up at full power?
Exhaust?
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11-06-2018, 02:41 PM
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#22 (permalink)
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Corporate imperialist
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I would be using it at full power.
Probably heat it with liquid coolant.
If I use 300C the wires insulation would melt.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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11-06-2018, 05:24 PM
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#23 (permalink)
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Master EcoModder
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Quote:
Originally Posted by oil pan 4
Any idea how long thy last?
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From what I've read .. baring some type of mechanical failure .. the semi-conductor part itself of most TEGs .. Roughly the same rate of degradation as most solar cell semi-conductor degradation .. about ~0.5% to ~1% per year (+/- context and material specifics).
Mechanical failure can result from allot of sources .. vibration , temperature changing cycles of expansion/contraction , sheer , impact , etc.
Soo , in ~20 years of use , it would be roughly 'fair' to assume you will drop down / loose somewhere around ~15% reduced power output (all else being equal).
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11-07-2018, 02:16 AM
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#24 (permalink)
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100 mpg 1 tonne truck
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I get the over 300c to fire up our TEG thermalelectric boiler by burning wood pellets, then through a grid tie inverter we put the energy from the wood pellets into our Nissan LEAF to the tune of 2 free round trips to town per day. Meanwhile the heat produced makes hot showers and goes I to our home hydronic heating loop.
Total system efficiency is near 100%
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How to get a 100 mpg 1 tone crew cab truck for under $10,000; buy a nissan leaf!
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11-07-2018, 12:33 PM
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#25 (permalink)
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Master EcoModder
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Do you have a picture of your setup?
How many modules?
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11-09-2018, 05:25 AM
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#26 (permalink)
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100 mpg 1 tonne truck
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105 40x40 mm TEG modules in this boiler from hastyheat.com
https://youtu.be/oTijbSC8y6A
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How to get a 100 mpg 1 tone crew cab truck for under $10,000; buy a nissan leaf!
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11-09-2018, 06:28 AM
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#27 (permalink)
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100 mpg 1 tonne truck
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Interesting video series on burning a TEG up by overspec thermal loading...
Synopsis if you have a good cooler you won't melt the solder out, so pour the heat to them...
https://youtu.be/Ya40vwpTCf4
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How to get a 100 mpg 1 tone crew cab truck for under $10,000; buy a nissan leaf!
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11-09-2018, 12:30 PM
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#28 (permalink)
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Corporate imperialist
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So you have to have a solid cooling system.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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12-08-2018, 05:07 PM
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#29 (permalink)
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Cyborg ECU
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I went down the TEG rabbit hole again today in my mind and did a little reading. This is an especially tantalizing quote from an article with some good images and research summaries, too:
"The Honda system used a simple design of a thin flat rectangular box with TEGs placed on the top and bottom surfaces. Liquid cooling was used in this design. The system consisted of 32 30 mm × 30 mm TEGs and produced a maximum of approximately 500 W. The claimed fuel consumption reduction is 3%."
SOURCE: B. Orra, A. Akbarzadeha, M. Mochizukib, and R. Singhb, "A review of car waste heat recovery systems utilising thermoelectric generators and heat pipes," Applied Thermal Engineering, Vol. 101 (2016), 490-495.
https://www.sciencedirect.com/scienc...01128X#bib0060
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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The Following User Says Thank You to California98Civic For This Useful Post:
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12-17-2018, 09:19 AM
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#30 (permalink)
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Cyborg ECU
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An example of someone bringing a 100w TEG system to market. An ICE is kinda like a stove, right? Quite pricey at +$1000.00 USD, especially without TEGs included:
"Introducing the first plug & play TEG Water Cooled System with an accessory solar input, battery charger and patent pending prioritization for active cooling. Our Patent Pending Tegpro Multi TEG & Solar Battery Charger with Pump Priority is a mulit-input charge controller that prioritizes power to the active cooling system onboard. It also displays voltage and current while charging your battery system.With the factory settings the unit can charge up to 14.4 VDC (can be set at factory set from 12 - 28.8 VDC, so please ask tell us!) and will accept up to 30 V DC inputs. ..."
https://172.98.64.46/thermoelectric-...oled-teg-sytem
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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