| Author | Message | ||
| doug yes (Dougg)
Registered Member Username: Dougg Post Number: 64 Registered: 1-2007 Posted From: 71.30.224.248 Rating: N/A |
Has anyone mounted a generator to the engine where the old air conditioner compressor was? It seems like a good spot as all the pullies are already there. | ||
| marvin pack (Gomer)
Registered Member Username: Gomer Post Number: 329 Registered: 3-2007 Posted From: 71.55.193.233 Rating: N/A |
Doug; It was tried but it wouldn't work because of the variable rpm's of the engine wouldn't keep a constant voltage output for the generator. It was even tried to put an electric motor on it and start it with the main engine. that don't work either,just a lot of fun and labor to try it LOL | ||
| Luvrbus (Luvrbus)
Registered Member Username: Luvrbus Post Number: 576 Registered: 8-2006 Posted From: 74.33.46.157 Rating: N/A |
Doug, I do not who makes its or much about it but some of the Prevost converters us a generator driven by the engine for ac power going down the road.I know Country Coach uses this system good luck | ||
| Tony LEE (T_lee)
Registered Member Username: T_lee Post Number: 35 Registered: 11-2007 Posted From: 60.228.107.123 Rating: N/A |
If you could find a bare-shaft inverter generator, then it would be possible to come up with a system. (or are you asking about mounting an auxiliary 24V alternator to maybe charge up the house batteries or drive a large inverter to run roof aircons) | ||
| Jack Conrad (Jackconrad)
Registered Member Username: Jackconrad Post Number: 869 Registered: 12-2000 Posted From: 71.54.29.215  Rating: N/A |
I think there was an engine powered generator on the market a few years ago that somehow produced a constant 120 AC from an engine. It was about 6 KW capacity and very expensive. I have not heard anytrhing about it for several years. I think it was called Auragen or something like that. Jack | ||
| Brian Elfert (Belfert)
Registered Member Username: Belfert Post Number: 74 Registered: 7-2006 Posted From: 75.72.107.232 Rating: N/A |
Jack is correct about the Auragen. Auragen Systems is the manufacturer. Never really looked into because of the expense. | ||
| Jim Wilke (Jim Bob) (Pd41044039)
Registered Member Username: Pd41044039 Post Number: 344 Registered: 2-2001 Posted From: 69.77.151.35 Rating: N/A |
Most of our buses already have a big part of such a system. If you utilize the 300amp oil cooled alternator and 5-6KW worth of good quality inverter/s you have the same thing with the benefit that you can run small loads off your battery bank which the Auragen can not do when the big engine is silent! | ||
| doug yes (Dougg)
Registered Member Username: Dougg Post Number: 65 Registered: 1-2007 Posted From: 71.30.227.221 Rating: N/A |
Jim Wilke, Will an inverter off the alternator give enough juice to run a basement AC? | ||
| Jack Conrad (Jackconrad)
Registered Member Username: Jackconrad Post Number: 870 Registered: 12-2000 Posted From: 71.54.29.215 Rating: N/A |
24 volt times 240 amp alternator equals 5760 watts (48 amps @ 120 volts) 12 volt times 240 amp alternator equals 2880 watts (24 amps @ 120 volt) This is output at maximum alternator output (high RPM). This also does not allow for any ineffeciencies in alternator (lower output with higher temperatures) or inverter. You will aslo need an inverter with enough capacity to handle basement AC load. Check you AC owners manual for amp draw. Jack | ||
| quantum merlin (Quantum500)
Registered Member Username: Quantum500 Post Number: 45 Registered: 8-2007 Posted From: 71.216.81.9 Rating: N/A |
In my experiance you can run 3000watts very safely with a 24v system. (Message edited by quantum500 on November 14, 2008) | ||
| Buswarrior (Buswarrior)
Registered Member Username: Buswarrior Post Number: 1384 Registered: 12-2000 Posted From: 76.66.19.203  Rating: N/A |
On my coach, the stock big coach alternator and a Trace 4024 will run two roof airs going down the road with no noticeable problems. Pretty much the same load as the stock HVAC. Do be sure that there is sufficient cooling for the inverter, it will be putting out a lot of heat. happy coaching! buswarrior | ||
| doug yes (Dougg)
Registered Member Username: Dougg Post Number: 67 Registered: 1-2007 Posted From: 71.30.227.221 Rating: N/A |
Thank you all! | ||
| Tom Christman (Tchristman)
Registered Member Username: Tchristman Post Number: 38 Registered: 1-2006 Posted From: 66.218.33.156 Rating: N/A |
To politely correct Jack on his figurings, the actual output of the 24v system is 28v, and the 12v system is 14v. So that computes with a 270amp 24v system of 7,560 watts, and on a 300amp 12v system of 4200 watts (for 50DN alternator). Good Luck, TomC | ||
| Len Silva (Lsilva)
Registered Member Username: Lsilva Post Number: 175 Registered: 12-2000 Posted From: 71.99.25.84 Rating: N/A |
Buswarrior, Since you have real time experience, I'm curious about how well your system works when you are stopped. Can you do 30 minutes in a rest area at high idle without depleting the batteries? Len | ||
| Buswarrior (Buswarrior)
Registered Member Username: Buswarrior Post Number: 1385 Registered: 12-2000 Posted From: 76.69.140.216 Rating: N/A |
Same as running the stock HVAC, base idle will be hard pressed to make enough power over time, but fast idle has no problem that I've detected. I did the math way back, the Trace running the two older roof airs is equivalent to the two big electric blowers, condenser and evaporator. By the way, I still have my stock HVAC functional, I was messing around determining the redundancies. So there is a margin of sorts between the draw and the max output. happy coaching! buswarrior | ||
| Jack Conrad (Jackconrad)
Registered Member Username: Jackconrad Post Number: 871 Registered: 12-2000 Posted From: 71.54.29.215 Rating: N/A |
"To politely correct Jack on his figurings, the actual output of the 24v system is 28v, and the 12v system is 14v. So that computes with a 270amp 24v system of 7,560 watts, and on a 300amp 12v system of 4200 watts (for 50DN alternator). Good Luck, TomC" Thanks Tom, I completely forgot about 14 and 28 volt insteaqd of 12 and 24. I also thought all the 50 DNs were 240 amp. Thanks for the information, mow if I can hust remember this LOL!! Jack |