Plastic heat exchanger - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel
 Not a Member? 

Diesel This is a new forum dedicated to diesel engines and their applicable accessories.


Like Tree1Likes
  • 1 Post By MobjackB32
Reply
 
LinkBack Thread Tools
  #1  
Old 08-19-2010
MobjackB32's Avatar
Waterman
 
Join Date: Mar 2010
Location: Va Beach, VA
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
MobjackB32 is on a distinguished road
Plastic heat exchanger

I am looking for any information on plastic heat exchangers. I saw in a picture what appeared to be one on a Bristol 32. I have a Bristol 32 with a Universal 5424. The concept seems to make a lot of sense. It would seem you would eliminate most of the corrosion potential in your raw water system that way. Does anyone have one, know of someone who does, or have info as to where you can find them?

Thanks!

Jeff
Froggy likes this.
Reply With Quote Share with Facebook
  #2  
Old 08-19-2010
hellosailor's Avatar
Plausible Deniability
 
Join Date: Apr 2006
Posts: 10,541
Thanks: 2
Thanked 82 Times in 80 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Jeff, plastic just doesn't transfer heat well.

There are a number of heat exhangers and radiators built using plastic caps (top caps or end caps) but AFAIK the actual tubing is still going to be metal simply because it transfers heat SO much better.

With the right metals and an adequate zinc, corrosion should not be a problem.
Reply With Quote Share with Facebook
  #3  
Old 08-19-2010
MobjackB32's Avatar
Waterman
 
Join Date: Mar 2010
Location: Va Beach, VA
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
MobjackB32 is on a distinguished road
The problem with zincs is getting to them. In my boat you have to be a contortionist to get to the HE zinc so it doesnt get changed enough. Do you know who manufactors them so I can research them?
Reply With Quote Share with Facebook
  #4  
Old 08-19-2010
hellosailor's Avatar
Plausible Deniability
 
Join Date: Apr 2006
Posts: 10,541
Thanks: 2
Thanked 82 Times in 80 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Not offhand. I suspect you'd have to check local suppliers to see what they deal in, since freight tends to be steep on that kind of stuff.
Reply With Quote Share with Facebook
  #5  
Old 08-19-2010
JimsCAL's Avatar
Senior Member
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,383
Thanks: 1
Thanked 34 Times in 33 Posts
Rep Power: 8
JimsCAL is on a distinguished road
As hellosailor said, the shell and heads may be plastic but the tubes or other heat transfer surfaces will be copper or other similar metals. Plastic is a lousy conductor of heat!
Reply With Quote Share with Facebook
  #6  
Old 08-19-2010
Senior Member
 
Join Date: Aug 2009
Posts: 266
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 5
sailor50 is on a distinguished road
It's usually a pencil zinc, the size of a small screw on the underside of the exchanger. Get a teenager who doesn't smoke (they won't drop it, and then say.. wow man!) and offer them a prepaid phone card, pizza, or something else they may be into.
Reply With Quote Share with Facebook
  #7  
Old 08-19-2010
CalebD's Avatar
Tartan 27' owner
 
Join Date: Jan 2008
Location: NYC
Posts: 4,515
Thanks: 4
Thanked 84 Times in 77 Posts
Rep Power: 7
CalebD will become famous soon enough
Yes, heat exchanger (HX) zincs need to be replaced and it would seem frequently as there can be a lot of dissimilar metals in a HX. Catalinadirect.com carries all three sizes used on various Universal engines and they cost about $10 each.
Read this page: Catalina Direct: The Unknown Zinc
and buy all 3 sizes to start with and once you know what size yours takes buy a few of them. Give the ones that are the wrong size away.
HX = extra life on your engine + extra maintenance.
__________________
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen

Everybody has one:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
Reply


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

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



All times are GMT -4. The time now is 05:37 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.