Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-06-2011, 09:00   #16
Registered User
 
Unicorn Dreams's Avatar

Join Date: Aug 2007
Location: Clear Lake Marine Services - Seabrook, Texas
Boat: Gulfstar, Mark II Ketch, 43'
Posts: 2,359
Re: Monster Alternator, Eco-Tech

$3000 for an alternator, you can install a windgen and a nice solar array and you won't need that big alternator...
__________________

__________________
Formerly Santana
The winds blow true,The skies stay blue,
Everyday is a good day for SAILING!!!!
Unicorn Dreams is offline   Reply With Quote
Old 10-06-2011, 09:56   #17
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,201
Images: 52
Re: Monster Alternator, Eco-Tech

Quote:
Originally Posted by Gashmore View Post
It took a bit of machining to do the CV joint thing. First I built the engine stringers about 14" out in front of the engine. I welded up a bracket that fits across the engine stringers with two heavy bearings lined up with the engine shaft and machined an adapter to mate the CV joint to the balancer pulley.

Port side of the bracket is a standard J mount for the alternator. Starboard is the high pressure pump for the water maker with an electric clutch. Finally I machined a to step aluminum pulley so that I can drive the alternator and water maker anywhere between moderate idle and 2200 engine RPM.

Theoretically I should be able to make 32 gallons of water and two days worth of battery charge in a little over an hour of engine time.

Can't figure out how to post a current photo but my water maker page has a picture of the assembled PTO before installation and before the new pulley. (Also with the L-N alternator)
Watermaker


That is an awesome assembly. I'll be looking at something similar to backup my 7.5 kw genset, and the engine driven watermaker is genius. I have my family aboard and a 1480 amp bank to keep charged...
__________________

__________________
minaret is offline   Reply With Quote
Old 10-06-2011, 10:00   #18
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,201
Images: 52
Re: Monster Alternator, Eco-Tech

Quote:
Originally Posted by Unicorn Dreams View Post
$3000 for an alternator, you can install a windgen and a nice solar array and you won't need that big alternator...
I think the idea is probably to have all of the above. That's how I am trying to do it at least. Redundancy is good, especially if you have a powerhog...
__________________
minaret is offline   Reply With Quote
Old 10-06-2011, 10:20   #19
cat herder, extreme blacksheep
 
zeehag's Avatar

Cruisers Forum Supporter

Join Date: Jul 2008
Location: furycame alley , tropics, mexico for now
Boat: 1976 FORMOSA yankee clipper 41
Posts: 17,772
Images: 56
Send a message via Yahoo to zeehag Send a message via Skype™ to zeehag
Re: Monster Alternator, Eco-Tech

love my wimpy lil 80 amp special on my perkins..LOL....works great.....not pricey to replace or repair.
zeehag is offline   Reply With Quote
Old 10-06-2011, 13:28   #20
Registered User
 
typhoon's Avatar

Join Date: Feb 2007
Location: Toronto Canada
Boat: Bristol 45.5
Posts: 945
Images: 1
Re: Monster Alternator, Eco-Tech

Quote:
Originally Posted by typhoon View Post
I agree with that side load concern, the last thing we would want to do is smoke a crank bearing.

I will be using about 1000 ah worth of AGM batteries. Should balance out well. People see the alternator on my bench at work and always comment on it , what a monster . And if I can can get 240 amps back in the batteries in one hour of running, while making 40 gallons of water , life will be good . Nice to see im not the only power hog

Regards
Got the alternator for 750 on ebay , brand new in the box. If it is as good as I think it is , I would pay $3000 for it . Price out a new Balmar set up with two alternators a center fielder and regulators, and of course the mouting brackets . Probably close to that if not more.

I am putting a two belted electric clutch on the same output shaft which will be driving a D10 Hydracell pump for the water maker. Should load the Yanmar to about 80% just the way they like it .

I decided to go against wind generators and solar panels for various reasons. Us powers hogs like lots of juice.

Regards ..
__________________
typhoon is offline   Reply With Quote
Old 10-06-2011, 20:00   #21
Senior Cruiser
 
osirissail's Avatar

Cruisers Forum Supporter

Join Date: Feb 2009
Location: A real life Zombie from FL
Boat: Gulfstar 53 - Osiris
Posts: 5,416
Images: 2
Re: Monster Alternator, Eco-Tech

Two problems with the Eco-tech alternator amongst others is that they are constant voltage and internally regulated. That is fine if your batteries are conventional liquid acid batteries. But for anything else like AGM's, Gel or sealed batteries you will probably be spending more on replacing batteries than the alternator costs.
- - Smart external regulation is the norm for marine battery systems.
__________________
osirissail is offline   Reply With Quote
Old 11-06-2011, 00:54   #22
Registered User
 
Extemporaneous's Avatar

Join Date: Dec 2007
Location: Canada
Boat: Corbin 39 Special Edition
Posts: 909
Re: Monster Alternator, Eco-Tech

Quote:
Originally Posted by typhoon View Post
Got all my machining done this week , will post photo's of the alternator and pump mounted on the Yanmar soon.

Stay tuned

Regards
Looking forward to it!

Cheers,
Extemp.
__________________
Do the best you can EVERY step of the way and maybe, just maybe......
It will be good enough!
Extemporaneous is offline   Reply With Quote
Old 05-08-2011, 08:36   #23
Registered User
 
typhoon's Avatar

Join Date: Feb 2007
Location: Toronto Canada
Boat: Bristol 45.5
Posts: 945
Images: 1
Re: Monster Alternator, Eco-Tech

Done!! Done!! Take a look.

It actually went together pretty good.
Rats Can't get the pics on from this computer will do later from home.

Just a response to the last post.

From Wikipedia.
At high overcharge currents, electrolysis of water occurs, expelling hydrogen and oxygen gas through the battery's valves. Care must be taken to prevent short circuits and rapid charging. Constant-voltage charging is the usual, most efficient and fastest charging method for VRLA batteries, although other methods can be used.[1] VRLA batteries may be continually "float" charged at around 2.35 volts per cell at 25C. Some designs can be fast charged (1 hour) at high rates. Sustained charging at 2.7 V per cell will damage the cells. Constant-current overcharging at rates higher than C/3 will exceed the capacity of the cell to recombine hydrogen and oxygen.[1]

Lifeline also shows ,Bulk and acceptance voltages as the same.

Lifeline AGM Batteries Charging Procedure

The Eco-tech alternators simply turn off when the batteries are full. So float voltages are not needed.

Regards , Pics tonight.
__________________
typhoon is offline   Reply With Quote
Old 05-08-2011, 09:40   #24
Senior Cruiser
 
osirissail's Avatar

Cruisers Forum Supporter

Join Date: Feb 2009
Location: A real life Zombie from FL
Boat: Gulfstar 53 - Osiris
Posts: 5,416
Images: 2
Re: Monster Alternator, Eco-Tech

It appears from the posts that the Eco-tech puts out enormous amperes, runs at 14.4 volts, cannot be externally regulated and simply turns itself off when it senses a full battery voltage condition. Yes? No?
- - Since battery life is a function of charge/discharge cycles it would seem that using an Echo-tech alternator would hasten the consumption of those cycles and thereby decrease the useful life of a marine battery bank.
- - Other marine alternators use external "smart" regulation to keep the charging current and voltages within the desired limits set by the battery manufacturers. They also do not "turn off" when the batteries are sensed to be "full." This allows the ship's electrical loads to be run off the alternator's output rather than being forced to deplete the batteries thusly saving charge/discharge cycle life.
- - AGM's and Gel's are super sensitive to over-voltage charging and are rather expensive. However, old fashioned heavy duty liquid lead acid batteries such as are used in trucks, firetrucks, etc. can take a lot of abuse and are significantly cheaper.
__________________
osirissail is offline   Reply With Quote
Old 05-08-2011, 10:43   #25
Registered User
 
typhoon's Avatar

Join Date: Feb 2007
Location: Toronto Canada
Boat: Bristol 45.5
Posts: 945
Images: 1
Re: Monster Alternator, Eco-Tech

Don't get me wrong, I would not put one off these on a main engine. But as part of a proprietary
charging system on a separate engine, It's a great solution.

AGM batteries are getting much better. Read what LifeLine has to say.

These are the spec on the Eco-Tech
Specifications
Operating ambient temperature
Rated Current
Idle Current
Voltage Set point
Efficiency @1800 rpm
Rotation direction
Max. Continuous Speed
Max. Intermittent Speed
Excitation type
Ground
Weight
-40 to +93C
325 Amperes at 6000 rpm
255 Amperes at 1800 rpm
14.4 V 0.2V
80%
CW
8,000 rpm
10,000 rpm
Self
Negative
38 Lbs.

Regards
__________________
typhoon is offline   Reply With Quote
Old 06-08-2011, 11:30   #26
Registered User
 
typhoon's Avatar

Join Date: Feb 2007
Location: Toronto Canada
Boat: Bristol 45.5
Posts: 945
Images: 1
Re: Monster Alternator, Eco-Tech

Here are the pics
Attached Thumbnails
Click image for larger version

Name:	Picture 002.jpg
Views:	100
Size:	92.7 KB
ID:	30233   Click image for larger version

Name:	Picture 003.jpg
Views:	103
Size:	117.6 KB
ID:	30234  

Click image for larger version

Name:	Picture 004.jpg
Views:	110
Size:	108.0 KB
ID:	30235   Click image for larger version

Name:	Picture 005.jpg
Views:	111
Size:	108.1 KB
ID:	30236  

Click image for larger version

Name:	Picture 006.jpg
Views:	98
Size:	110.7 KB
ID:	30237  
__________________
typhoon is offline   Reply With Quote
Old 06-08-2011, 12:55   #27
Registered User
 
Extemporaneous's Avatar

Join Date: Dec 2007
Location: Canada
Boat: Corbin 39 Special Edition
Posts: 909
Re: Monster Alternator, Eco-Tech

Quote:
Originally Posted by typhoon View Post
Here are the pics
Nice!!
__________________
Do the best you can EVERY step of the way and maybe, just maybe......
It will be good enough!
Extemporaneous is offline   Reply With Quote
Old 06-08-2011, 13:50   #28
Registered User

Join Date: Jan 2007
Posts: 223
Re: Monster Alternator, Eco-Tech

Very nice, and the coupling is a terrific idea. Looks like a class job. A little concerned about the frame strength but you can add on corner plates at any time if needed.

Wish I had this kind of juice but I don't have that storage capacity either.
__________________
Kapena is offline   Reply With Quote
Old 06-08-2011, 13:55   #29
Registered User
 
typhoon's Avatar

Join Date: Feb 2007
Location: Toronto Canada
Boat: Bristol 45.5
Posts: 945
Images: 1
Re: Monster Alternator, Eco-Tech

Quote:
Originally Posted by Kapena View Post
Very nice, and the coupling is a terrific idea. Looks like a class job. A little concerned about the frame strength but you can add on corner plates at any time if needed.

Wish I had this kind of juice but I don't have that storage capacity either.

Yes I was thinking of adding a cross brace, but i was suprised how strong it was as it is , see when I get a big load on that alternator . The pump will only take 2.5 horse . The alternator will take between 7 and 9 hp.

Regards
__________________

__________________
typhoon is offline   Reply With Quote
Reply

Tags
alternator

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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
California Sea Monster ? SaltyMonkey General Sailing Forum 35 03-06-2010 16:25
Happy Monster - Dutch Couple happymonster Meets & Greets 10 12-06-2009 20:09
Monster tri headed for San Diego Roy M Multihull Sailboats 56 01-10-2008 11:35
New Eco Bottom Paints delmarrey Product or Service Reviews & Evaluations 5 13-05-2007 00:00



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:21.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.