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Search took 0.00 seconds. Search: Posts Made By: Mfturner

Forum: General Discussion Forum

03-09-2018, 03:58 AM

Replies: 24

Hymer and WATT Fuel Cell

Views: 6,913

Posted By Mfturner

Hmm, similar math for the methanol in an Efoy...

Hmm, similar math for the methanol in an Efoy gives 22.5%
8.4 kg at 21 Mj/kg vs 920 ah at 12v at 3.6 kj/wh

[Edit] elsewhere the Efoy claims 0.9 l per kwh, which is about 25%, so that's the range,...

Forum: General Discussion Forum

03-09-2018, 03:43 AM

Replies: 24

Hymer and WATT Fuel Cell

Views: 6,913

Posted By Mfturner

Fwiw, I found a site claiming a 3.6 kw Onan...

Fwiw, I found a site claiming a 3.6 kw Onan consumes 0.7 gal/hr of propane, by similar math that works out to 18% which is in the ballpark of what I expected. I'll see if I can find a claim of...

Forum: General Discussion Forum

03-09-2018, 12:54 AM

Replies: 24

Hymer and WATT Fuel Cell

Views: 6,913

Posted By Mfturner

Someone please check my math, I'm only getting...

Someone please check my math, I'm only getting 23%

.34 #/hr is 155g/hr
155 g * 2200 KJ/mol / 44 g/mol = 7735 KJ potential
500 watts.hr * 3.6 KJ/w.hr = 1800 KJ converted

Forum: General Discussion Forum

03-07-2018, 07:33 PM

Replies: 24

Hymer and WATT Fuel Cell

Views: 6,913

Posted By Mfturner

Hmm, the Efoy comfort series has a max altitude...

Hmm, the Efoy comfort series has a max altitude of 2000m, not so useful everywhere I go...I wonder if they all have a relatively low limit?

Forum: General Discussion Forum

03-07-2018, 06:54 PM

Replies: 24

Hymer and WATT Fuel Cell

Views: 6,913

Posted By Mfturner

Looks like Efoy has US dealers in SC and on the...

Looks like Efoy has US dealers in SC and on the west coast. This looks like the answer to the 24/7 small generator suggestion in the other thread. With a decent lithium battery bank to handle...

Forum: General Discussion Forum

03-07-2018, 04:56 PM

Replies: 24

Hymer and WATT Fuel Cell

Views: 6,913

Posted By Mfturner

I just found this write-up of a fuel cell install...

I just found this write-up of a fuel cell install in a truck camper...

https://www.truckcampermagazine.com/camper-mods/projects/fuel-cells-for-truck-campers/

I agree that gasoline or diesel...

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