Reply
 
Thread Tools Display Modes
 
Old 05-16-2015, 02:12 PM   #41
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,178
I'll be interested in heat buildup at the solar panels with the plexiglass panels in place.
__________________
Advertisement

__________________
Al

Custom Google Trawler Forum Search
FlyWright is offline   Reply With Quote
Old 05-16-2015, 04:41 PM   #42
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Quote:
Originally Posted by FlyWright View Post
I'll be interested in heat buildup at the solar panels with the plexiglass panels in place.
Me too, I checked today with the gun and the surface was 122F in direct full sunlight. The back side was 108F. Its 85F here in Maryland. The panels only had 130watts of demand due to fully charge batteries. When I get out on the hook the next few weeks I will pull temps when they are pumping out 300+ watts.
We start the loop Monday. Should have lots of good test data to look at
__________________

__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is offline   Reply With Quote
Old 05-17-2015, 10:19 AM   #43
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,178
Quote:
Originally Posted by fryedaze View Post
We start the loop Monday. Should have lots of good test data to look at
Well, that's exciting! Hope you have the time of your lives! Keep us posted on your travels!!

Cheers!
__________________
Al

Custom Google Trawler Forum Search
FlyWright is offline   Reply With Quote
Old 05-18-2015, 11:52 AM   #44
Guru
 
JDCAVE's Avatar
 
City: Lions Bay, BC
Country: Canada
Vessel Name: Phoenix Hunter
Vessel Model: Kadey Krogen 42 (1985)
Join Date: Apr 2011
Posts: 1,606
Congrats Dave! I'm thinking of a similar setup on my PH roof but would go with the rigid panels in my situation. About 450-500 watts of panels would be about right for my situation. I'd like to limit the runtime on my genny to <1 hr per day and also bring the batteries up to a full SOC on a more regular basis when off the grid.


Jim
Sent from my iPad using Trawler Forum
JDCAVE is offline   Reply With Quote
Old 05-18-2015, 03:58 PM   #45
Guru
 
City: Fort Myers
Country: USA
Join Date: Jul 2013
Posts: 954
Great thread, thanks for sharing all the details!
Marlinmike is offline   Reply With Quote
Old 05-23-2015, 09:17 PM   #46
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Performance info

Well, its day 5 of the Fryedaze great loop adventure. We have had the opportunity to anchor out and see what the solar panels will do. The key test was two days in Swan Creek Rock Hall Md. The power pigs on Fryedaze eat 300-330 amp-hrs a day. On a pretty good day the panels gave back 195 amp-hrs of that. That's not the 80% I was looking for but then I wrongly assumed we only used 250 amp-hrs a day. I did get to see a crappy performance day when it rained all day and was overcast. The panels never went over 60watts. Our 940 amp-hrs bank will hold us for a few days.
Once I figure out how to connect the data logger to the laptop I will overload all the engineering geeks with DATA.

Dave
Fryedaze in Utschs marina Cape May
Attached Thumbnails
Click image for larger version

Name:	SDC13794.jpg
Views:	90
Size:	167.5 KB
ID:	40425   Click image for larger version

Name:	SDC13798.jpg
Views:	92
Size:	167.1 KB
ID:	40426  
__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is offline   Reply With Quote
Old 05-23-2015, 09:53 PM   #47
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,178
Dave, is that the new curvature with the lexan panels in place? Looks perfect to me.
__________________
Al

Custom Google Trawler Forum Search
FlyWright is offline   Reply With Quote
Old 05-24-2015, 05:09 AM   #48
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Quote:
Originally Posted by FlyWright View Post
Dave, is that the new curvature with the lexan panels in place? Looks perfect to me.
Yes, it worked out really well.
__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is offline   Reply With Quote
Old 05-28-2015, 09:07 AM   #49
Guru
 
JDCAVE's Avatar
 
City: Lions Bay, BC
Country: Canada
Vessel Name: Phoenix Hunter
Vessel Model: Kadey Krogen 42 (1985)
Join Date: Apr 2011
Posts: 1,606
Hi Dave: perhaps you mentioned this already. Does the SOC of your batteries reach 100% at some time in the day when you are off grid? How does your genset use tie in to the equation?

Jim


Jim
Sent from my iPad using Trawler Forum
JDCAVE is offline   Reply With Quote
Old 05-28-2015, 09:27 AM   #50
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Quote:
Originally Posted by JDCAVE View Post
Hi Dave: perhaps you mentioned this already. Does the SOC of your batteries reach 100% at some time in the day when you are off grid? How does your genset use tie in to the equation?

Jim


Jim
Sent from my iPad using Trawler Forum
No the Victron SOC doesn't go back to 100%. Big round numbers we use about 300 amp-hrs a day and the panels give back 190-200 amp-hrs. We haven't used the genset as our battery charging source because we haven't stayed in any place more than two days. I could probably stay out 4-5 days before I would need a charge. Unfortunately if I had to put back 500 amp-hrs with the charger and the genset alternator it would take a while, each is only 40 amps. My engine alts are 150 amp-hrs each controlled by Sterling regulators. They recover the batteries pretty quickly.
__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is offline   Reply With Quote
Old 05-28-2015, 09:41 AM   #51
Guru
 
JDCAVE's Avatar
 
City: Lions Bay, BC
Country: Canada
Vessel Name: Phoenix Hunter
Vessel Model: Kadey Krogen 42 (1985)
Join Date: Apr 2011
Posts: 1,606
Semi-flexible solar panel install

Yes, I was just wondering if you gave your genny a kick in the morning to get the SOC to 80%, if the solar would get you to 100% sometime later in the day. It would be nice to get to 100% sometime once every few days. Just thinking about my own situation...next year when I get onto this project.

Jim
Sent from my iPad using Trawler Forum
JDCAVE is offline   Reply With Quote
Old 05-29-2015, 10:30 PM   #52
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Quote:
Originally Posted by JDCAVE View Post
Yes, I was just wondering if you gave your genny a kick in the morning to get the SOC to 80%, if the solar would get you to 100% sometime later in the day. It would be nice to get to 100% sometime once every few days. Just thinking about my own situation...next year when I get onto this project.

Jim
Sent from my iPad using Trawler Forum
My panels are 450 watts. They will never put 450 out. I think if I had 50% more output I could be self sufficient. So my assumption is if I had about 700 watts of panels It would handle the 300 amp-hrs (3800 watts-hrs) I burn a day. The panels are giving me about 2500 watt-hrs a day now.
If I had that big Krogen I would mount 3- 300 watt house panels up on the roof.
__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is offline   Reply With Quote
Old 05-30-2015, 08:10 AM   #53
Guru
 
roguewave's Avatar
 
City: Hill Country TX/S.Portland Maine
Country: Texas
Vessel Name: Southern Cross III
Vessel Model: 1988 Defever 41
Join Date: Jul 2012
Posts: 610
Great write up Dave and thank you for taking us along. On our new to us 41 footer, I was really contemplating a solar system very similar to yours but I'm afraid with the twin Cummins 5.9's down in the cave, I do not have the space for more batteries. I'm curious how many you added (and where) and what kind of space they took up. I wonder if the Lithium-ion batteries would work?

When I finally decide to head home to Texas I'm thinking of going on the route (I think) you are taking instead of traveling down the east coast and over. I will be following your journey, safe travels and much joy!
Rob
__________________
..."some gave all, KIA"...
roguewave is offline   Reply With Quote
Old 05-30-2015, 11:38 AM   #54
Member
 
City: Baltimore
Country: USA
Join Date: Jan 2015
Posts: 22
What kind of adhesive did you use on the velco that's attached to the solar panel? My luck has been the adhesive that comes on self adhering velco becomes soft under the sun and then comes unglued. But that my luck....lol
bankerboy1 is offline   Reply With Quote
Old 05-30-2015, 06:09 PM   #55
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Quote:
Originally Posted by roguewave View Post
Great write up Dave and thank you for taking us along. On our new to us 41 footer, I was really contemplating a solar system very similar to yours but I'm afraid with the twin Cummins 5.9's down in the cave, I do not have the space for more batteries. I'm curious how many you added (and where) and what kind of space they took up. I wonder if the Lithium-ion batteries would work?

When I finally decide to head home to Texas I'm thinking of going on the route (I think) you are taking instead of traveling down the east coast and over. I will be following your journey, safe travels and much joy!
Rob
I don't have the measurements but between my mains its packed with the batteries. No extra room at all. I had an 8D for each engine, but have changed one out for a 4D and will do the same with the other when it croaks. The 8Ds are over kill as engine batteries (IMHO) and weigh to much. I had a Group 31 batt for the genset and got rid of it for space considerations. The genset is setup on the engine batteries. The rest of the space is covered with 8- 235 amp-hr Crown 6vot batteries. If I had more room I would add a few more.
Dave
__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is offline   Reply With Quote
Old 05-30-2015, 06:10 PM   #56
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Quote:
Originally Posted by bankerboy1 View Post
What kind of adhesive did you use on the velco that's attached to the solar panel? My luck has been the adhesive that comes on self adhering velco becomes soft under the sun and then comes unglued. But that my luck....lol
The canvas guys stitched them on.
__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is offline   Reply With Quote
Old 06-13-2015, 01:54 PM   #57
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Panel performance update

I think I have a heat issue. Now that the outside temps are in the mid 80s I am not getting the output I got in March. In March I saw 350 watts on a cold clear day, without the plexiglass backing. I have only observed highs of 150 watts at mid day now. Today at noon I pulled up a panel and felt the back side. It was hot to the touch. The back was hotter than the front in direct sunlight. Not sure how to resolve this one. I need the plexiglass to keep them flat and I cant let the wind get under it or they will tear off on a high wind day. I will cogitate on it for a while and maybe come up with a solution. If anyone has an idea I would appreciate it.
Dave
__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze is offline   Reply With Quote
Old 06-13-2015, 02:23 PM   #58
Guru
 
mbevins's Avatar
 
City: Windsor
Country: Canada
Vessel Name: Keeper IV
Vessel Model: 44 Viking ACMY
Join Date: Nov 2013
Posts: 1,305
Perhaps drilling holes in the plexiglass. Which could be problematic if you're not actually using Lexan . If using Lexan a series of 1" holes equally spaced should allow some heat dissipation through the back.
__________________
"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not."

mbevins is offline   Reply With Quote
Old 06-13-2015, 05:41 PM   #59
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,178
Dave, looks like the panels need some air flow underneath to properly cool. If you could run some slats from the forward edge to the aft edge between the lexan and the panels, you should get some air flow. Maybe a 1-1.5 inch standoff?

This way the lexan holds the shape and the slats allow air flow.
FlyWright is offline   Reply With Quote
Old 06-14-2015, 09:26 PM   #60
Guru
 
fryedaze's Avatar
 
City: Solomons Island Md
Country: USA
Vessel Name: Fryedaze
Vessel Model: MC 42 (Overseas Ltd) Monk 42
Join Date: Sep 2011
Posts: 1,052
Failed Panels

Maybe its not heat. I disconnected panels one at a time and the port panel output was zero. The middle was 85 watts( normal for 0930 in the morning) and the starboard panel was 5 watts. I think I have two failed panels. I have a message into the vendor. I will let you know what happens. These panels were hitting 320-350 watts three weeks ago.
__________________

__________________
Dave Frye
Fryedaze, MC 42 (Monk 42') 1989 Overseas Co
http://mvfryedaze.blogspot.com/
fryedaze 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





All times are GMT -5. The time now is 01:35 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012