Reply
 
Thread Tools Display Modes
 
Old 04-25-2014, 02:50 AM   #1
Senior Member
 
Zeta's Avatar
 
Join Date: Apr 2010
Location: Preston, ID
Posts: 1,213
Send a message via Yahoo to Zeta
When the sun don't shine

Cool fuel cells that run on methanol.

http://www.efoy-comfort.com/

Z
__________________

__________________
'06 RB50 SMB Diesel

http://www.tomsinclair.net
Zeta is offline   Reply With Quote
Old 04-25-2014, 10:06 AM   #2
Site Team
 
daveb's Avatar
 
Join Date: May 2007
Location: Turlock Ca
Posts: 9,833
Garage
Re: When the sun don't shine

One of the members bought one

viewtopic.php?f=14&t=7144
__________________

__________________
2006 Ford 6.0PSD EB-50/E-PH SMB 4X4 Rock Crawler Trailer

Sportsmobile 4X4 Adventures..........On and off road adventures
daveb is offline   Reply With Quote
Old 05-02-2014, 04:46 PM   #3
Senior Member
 
Join Date: Mar 2013
Posts: 577
Re: When the sun don't shine

Quote:
Originally Posted by daveb
One of the members bought one

viewtopic.php?f=14&t=7144
Do you know if he ever reported actual use after installation? I read the thread and couldn't find the expected update. Cost seemed high, but then I don't know what a good solar system costs to compare against.

The lithium battery option discussed in that thread seems more appealing to me. I assume it would be based on having enough battery capacity to run for many hours, with only occasional charging from van engine or generator when sun don't shine.
Chance is offline   Reply With Quote
Old 05-03-2014, 10:08 PM   #4
Site Team
 
daveb's Avatar
 
Join Date: May 2007
Location: Turlock Ca
Posts: 9,833
Garage
Re: When the sun don't shine

Don't know. Seems I read a post about the operation of these things but it might have been over on the Expo site. Until something like that can run my air conditioner, I'll stick with what I'm using but for those who frequent overcast skies it sure beats the noise of a generator albeit at a super high price. BIGRICH posted in Feb so maybe a PM might get through?
__________________
2006 Ford 6.0PSD EB-50/E-PH SMB 4X4 Rock Crawler Trailer

Sportsmobile 4X4 Adventures..........On and off road adventures
daveb is offline   Reply With Quote
Old 05-05-2014, 09:59 AM   #5
Senior Member
 
Join Date: Mar 2013
Posts: 577
Re: When the sun don't shine

Daveb, I recall a few years ago reading that the US government was funding a R&D program (I think in partnership with Onan but not certain) to develop an affordable fuel cell to replace typical RV generators. Since then I don't recall seeing any news or updates, which makes me doubt much progress was achieved.

For the reported cost, even a 2000 watt unit to run an AC would be cost prohibitive. I think 5 to 10 kW-hrs of lithium batteries, while very pricey, would be a better deal for time being. It would just require a large generator (engine or separate) so that batteries could be charged in a couple of hours or less of "noise". The rest of the time it could be as silent as a fuel cell.
Chance is offline   Reply With Quote
Old 05-05-2014, 01:15 PM   #6
Senior Member
 
Zeta's Avatar
 
Join Date: Apr 2010
Location: Preston, ID
Posts: 1,213
Send a message via Yahoo to Zeta
Re: When the sun don't shine

These guys used them in--ahem--challenging conditions:

http://www.newyorker.com/reporting/2014 ... ntPage=all

Z
__________________
'06 RB50 SMB Diesel

http://www.tomsinclair.net
Zeta is offline   Reply With Quote
Old 05-06-2014, 09:16 AM   #7
Senior Member
 
Join Date: Mar 2013
Posts: 577
Re: When the sun don't shine

With many modern RVs relying on larger-capacity inverters and battery banks for power, it makes sense to me that low-power Auxiliary Power Units (like these fuel cells which are rated at 40 to 105 watts) that can run continuously to keep batteries charged can find a home in smaller units.

What I'm curious about is whether the same approach could work with a very small generator that was optimized for low vibration and noise. I know most smaller generators are no smoother or quieter than a Honda 2000, but I doubt any of them have been designed with noise and smoothness as highest priority. And if it ran steady at constant power maybe it would be easier to tune out.
__________________

Chance is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 05:14 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×