Battery-powered AC units for truckers...? - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-11-2015, 05:22 PM   #1
Senior Member
 
Ellpea in CA's Avatar
 
Name: Ellpea
Trailer: Bigfoot
California
Posts: 870
Registry
Question Battery-powered AC units for truckers...?

I was just digging through the Dometic website looking for other stuff and came across these. Battery powered? Work for 8-11 hours? They look (relatively) small?

Is there any chance these might be a good solution for cooling FGRV?

(this is just one model, there are others)

Inquiring minds like to know!
LP
__________________

__________________
Ellpea in CA is offline   Reply With Quote
Old 07-11-2015, 05:52 PM   #2
Senior Member
 
Bob Miller's Avatar
 
Name: Bob
Trailer: 1973 Hunter Compact II
California
Posts: 7,912
As most of us know, it's common practice for truckers to leave engines running when parked, meaning that the huge alternator they have, or an APU (Aux power unit), is available for powering a/c's etc. Looking at the specs it looks like it would take a substantial battery bank to get overnight cooling from battery power alone.


Which would then need to be recharged for the next nights use. Add to that, sleeper cabs are a lot smaller than FGRV's.


When it comes to generating BTU for cooling there's no free ride known, so far anyway!
__________________

__________________
Bob Miller is offline   Reply With Quote
Old 07-11-2015, 06:07 PM   #3
Senior Member
 
Timber Wolf's Avatar
 
Name: Tim
Trailer: '88 Scamp 16, layout 4
North Florida
Posts: 1,440
Battery powered AC. Would that not be the same as any other 120V Air Conditioner running off an inverter? With the inherent inefficiencies in such conversion it would take a lot of battery to pull off. Maybe one of those new high dollar Tesla batteries. I am waiting on a nice 12V compressor AC unit not unlike the 12V compressor refrigerators that are proven technology.
__________________
Timber Wolf is offline   Reply With Quote
Old 07-12-2015, 03:33 PM   #4
Senior Member
 
Ellpea in CA's Avatar
 
Name: Ellpea
Trailer: Bigfoot
California
Posts: 870
Registry
This reminds me a lot of the days when we had laser copiers and laser printers, which were essentially the same machinery, but you had to purchase two items to do almost the same job. I kept wondering why they didn't combine printers and copiers. Viola. Someone finally did.

But that does beg the question, if we can get things cool using propane, would it be THAT hard to power AC somehow the same way?

(Thanks for the PM info on all of this!)

I'm curious to know what we have discovered so far... what is the most efficient, least power drawing AC we've got available right now (appropriate for a little egg)?

LP
__________________
Ellpea in CA is offline   Reply With Quote
Old 07-12-2015, 05:45 PM   #5
Senior Member
 
Bob Miller's Avatar
 
Name: Bob
Trailer: 1973 Hunter Compact II
California
Posts: 7,912
You could build an LP powered a/c system but, to produce the volume of cooling BTU's you need it would be about the same size and cost as a new 13' Scamp.


For a closed circuit refrigerator/freezer it's fairly easy, but also expensive, for a full scale a/c unit it would be cheaper to keep about 1000 squirrels in a wheel running a generator.... LOL
__________________
Bob Miller is offline   Reply With Quote
Old 07-12-2015, 07:35 PM   #6
Senior Member
 
Ellpea in CA's Avatar
 
Name: Ellpea
Trailer: Bigfoot
California
Posts: 870
Registry
Quote:
Originally Posted by Bob Miller View Post
You could build an LP powered a/c system but, to produce the volume of cooling BTU's you need it would be about the same size and cost as a new 13' Scamp.


For a closed circuit refrigerator/freezer it's fairly easy, but also expensive, for a full scale a/c unit it would be cheaper to keep about 1000 squirrels in a wheel running a generator.... LOL
AHA! At last we have a workable plan! Any thoughts on what's required to keep 1000 squirrels moving at a dead run for 8 hours????

LP
__________________
Ellpea in CA is offline   Reply With Quote
Old 07-12-2015, 08:06 PM   #7
Senior Member
 
mmeyer's Avatar
 
Name: Michael J
Trailer: U-Haul VT
Indiana
Posts: 472
Registry
Unfortunately, federal laws prohibit squirrels from working more than 8 hours without a 30 minute break. In addition there are likely confined animal feeding operations which would limit the number of squirrels being housed in one place. They would likely be banned in California due to the excess carbon dioxide emitted while on the treadmill. While the concept seems plausible , I doubt that the bureaucracy involved in the proof of concept trials could be overcome at a reasonable cost.


Sent from my iPad using Fiberglass RV
__________________
mmeyer is offline   Reply With Quote
Old 07-12-2015, 09:33 PM   #8
Senior Member
 
Bob Miller's Avatar
 
Name: Bob
Trailer: 1973 Hunter Compact II
California
Posts: 7,912
Actually I looked up the Squirrel Labor Laws for California and their use in a/c power units has been banned due to excessive amounts of flatulent odors emitted during operation. Sorry, we will have to find a different method.
__________________
Bob Miller is offline   Reply With Quote
Old 07-13-2015, 01:43 PM   #9
Senior Member
 
Borden's Avatar
 
Name: Borden and Carole
Trailer: Boler 1978 17' 4" Earlton Ont Model
Ontario
Posts: 1,002
Registry
They do make a diesel a/c unit for reefers but it is to big and heavy for us maybe we could find a small one a Quart of fuel will run for a full day.
__________________
1978 Ontario made Boler
Borden is offline   Reply With Quote
Old 07-13-2015, 02:04 PM   #10
Senior Member
 
Borden's Avatar
 
Name: Borden and Carole
Trailer: Boler 1978 17' 4" Earlton Ont Model
Ontario
Posts: 1,002
Registry
Sent a message to domestic support, see what they come back with
__________________
1978 Ontario made Boler
Borden is offline   Reply With Quote
Old 07-13-2015, 10:35 PM   #11
Senior Member
 
Ellpea in CA's Avatar
 
Name: Ellpea
Trailer: Bigfoot
California
Posts: 870
Registry
Borden, WOW -- that's very intriguing! Will be watching to see what you find out!

Bob and Michael J., you two are obviously squirrel huggers whose opinions are tainted by raw emotion. Everyone knows those little critters were born to run. No matter... I'm already working out a plan for using hamsters on exercise wheels instead. We always posited in the early days this would be a faster method for powering some computers; now there is an opportunity to put the hamster-powered concept to a real test.

As you can see from my initial research (see video), hamsters are ready and willing to dedicate themselves to the job of producing power, and neither bangs nor falls nor concussions will stay them from the swift completion of their appointed task.

(However, I do think it advisable to check into all details of worker's compensation insurance.)

Best,
LP
__________________
Ellpea in CA is offline   Reply With Quote
Old 07-14-2015, 12:57 AM   #12
Commercial Member
 
tractors1's Avatar
 
Name: Charlie Y
Trailer: Escape 21 - Felicity
Oregon
Posts: 1,127
Quote:
Originally Posted by Ellpea in CA View Post
I was just digging through the Dometic website looking for other stuff and came across these. Battery powered? Work for 8-11 hours? They look (relatively) small?

Is there any chance these might be a good solution for cooling FGRV?

(this is just one model, there are others)

Inquiring minds like to know!
LP
The 7000 cooling unit draws 9 amps. The group 27 batteries would be good for 3-4 hours. Plus you'd have to create a hole for the condensate drain.
__________________
Charlie Y

Don't drill holes, try custom storage you design: http://RVWidgetWorks.com
tractors1 is offline   Reply With Quote
Old 07-14-2015, 01:40 AM   #13
Senior Member
 
Byron Kinnaman's Avatar
 
Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
Oregon
Posts: 6,312
Registry
Quote:
Originally Posted by tractors1 View Post
The 7000 cooling unit draws 9 amps. The group 27 batteries would be good for 3-4 hours. Plus you'd have to create a hole for the condensate drain.
That's 9 amps at 120 volts I believe. That would be 90 amps at 12 Volts.
The web site says for use with shore power. It does mention batteries and inverters, but at 90 amp it work for very long at 12 volts that doesn't include starting current.
__________________
Byron & Anne enjoying the everyday Saturday thing.
Byron Kinnaman is offline   Reply With Quote
Old 07-14-2015, 05:36 AM   #14
Senior Member
 
Name: p@
Trailer: Casita
South Carolina
Posts: 148
Registry
Quote:
Originally Posted by Timber Wolf View Post
Battery powered AC. Would that not be the same as any other 120V Air Conditioner running off an inverter? With the inherent inefficiencies in such conversion it would take a lot of battery to pull off. Maybe one of those new high dollar Tesla batteries. I am waiting on a nice 12V compressor AC unit not unlike the 12V compressor refrigerators that are proven technology.
I'd like to hear more about those 12V compressor fridges mentioned several posts up.

p@
__________________

__________________
patrick crawford is offline   Reply With Quote
Reply

Tags
battery


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Can you wire in battery powered lights? Nelmes Electrical | Charging, Systems, Solar and Generators 4 08-20-2013 11:03 AM
the Coleman battery powered camp shower: discontinued! jen b General Chat 2 03-16-2011 02:40 PM
Solar Powered Battery Charger Rich S Electrical | Charging, Systems, Solar and Generators 6 10-17-2006 10:19 AM
Sylvania Dot-It; stickble battery-powered LED lights Laura Heiman Modifications, Alterations and Updates 2 04-12-2006 02:15 PM
Boler Repair Ideas/Other units also Legacy Posts Problem Solving | Owners Helping Owners 0 08-19-2003 09:15 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:24 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.