Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 18-06-2021, 06:06   #1
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 15,260
Refrigerator Insulation at engine

One big drawback to having the refrigerator and galley aft by the companionway is the chest ends up sharing a plywood partition with the engine compartment.

What are the easiest and best ways to prevent heat flow to the chest through this area?

Assume there is only 1/2" -1" available on the engine side.

Solving this problem will have long term benefits to the refrigerator system.

Some ideas:
1. Run a fan exhausting engine heat during operation and for 30-45 minutes.
2. What insulation on the ref side? - Would a glacier bay insulated panel be advisable?
rgleason is offline   Reply With Quote
Old 20-06-2021, 17:36   #2
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 15,260
Re: Refrigerator Insulation at engine

Use of aerogel


https://www.cruisersforum.com/forums...el-184708.html
rgleason is offline   Reply With Quote
Old 20-06-2021, 18:31   #3
Registered User
 
Uncle Bob's Avatar

Join Date: May 2010
Location: Sydney Australia
Boat: Fisher pilothouse sloop 32'
Posts: 2,455
Re: Refrigerator Insulation at engine

Hi, would a layer of the best thin insulation that you can find glued to the ply wood and then a sheet of really reflective stainless sheet screwed over the top of it with small standoff spacers to prevent compressing the insulation work to reduce the heat transfer?
__________________
Rob aka Uncle Bob Sydney Australia.

Life is 10% the cards you are dealt, 90% how you play em
Uncle Bob is online now   Reply With Quote
Old 21-06-2021, 03:58   #4
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 15,260
Re: Refrigerator Insulation at engine

Uncle Bob

I think if the SS was polished it would qualify as relective, and coupled with two-three layers of 1/4" aerogel encapsulated in fiberglass coating to prevent the aerogel from it shedding all over the boat, it would really help the whole system.

I could even leave an opening for the alternator bracket which is close to that partition.
rgleason is offline   Reply With Quote
Old 21-06-2021, 16:28   #5
Registered User
 
Uncle Bob's Avatar

Join Date: May 2010
Location: Sydney Australia
Boat: Fisher pilothouse sloop 32'
Posts: 2,455
Re: Refrigerator Insulation at engine

Quote:
Originally Posted by rgleason View Post
Uncle Bob

I think if the SS was polished it would qualify as relective, and coupled with two-three layers of 1/4" aerogel encapsulated in fiberglass coating to prevent the aerogel from it shedding all over the boat, it would really help the whole system.

I could even leave an opening for the alternator bracket which is close to that partition.
Hey, you could look at rockwool for the insulation as well, here one can buy compressed sheets used in the hvac industry.
__________________
Rob aka Uncle Bob Sydney Australia.

Life is 10% the cards you are dealt, 90% how you play em
Uncle Bob is online now   Reply With Quote
Old 22-06-2021, 05:27   #6
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 15,260
Re: Refrigerator Insulation at engine

Yes. I occurs to me SS might make engine noisier.
rgleason is offline   Reply With Quote
Old 24-06-2021, 08:53   #7
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 15,260
Re: Refrigerator Insulation at engine

R-50 from a commercial source, would be ideal against engine - refridge partition but no custom sizes.

https://www.r-50.com/

Also same deal no custom sizing
https://www.kingspan.com/us/en-us/pr...boards/optim-r




Maybe

http://ezkold.com/products/vacuum_in..._panels_-_vips
rgleason is offline   Reply With Quote
Old 26-06-2021, 14:03   #8
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 15,260
Re: Refrigerator Insulation at engine

Louie suggested I contact Rich Boren, Owner/Cruiser, Cruise RO Water and Technautics, about about the use of vacuum panels for a rebuild top access fridge. I am considering use of aerosol.

Rick advised that, "we use Glacier Corporation in Orange County, California to make VIP when we need them."

https://www.glaciercorp.com/index.html

rgleason is offline   Reply With Quote
Old 26-06-2021, 14:16   #9
RGN
Registered User

Join Date: Jun 2018
Location: stuck in Florida for vaccinations, bot stuck in the Chesapeake
Boat: Vanguard 33
Posts: 91
Re: Refrigerator Insulation at engine

Slightly off topic but, do Vacuum Panels leak over time?
RGN is offline   Reply With Quote
Old 26-06-2021, 17:43   #10
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 15,260
Re: Refrigerator Insulation at engine

If punctured, you've lost the insulation. Yes they could gradually leak. I don't know if they have done tests. I think aerogel would be better but it gets all over the place, so best to keep it off the boat, cut the pieces outdoors with a mask and encapsulate with several coats of epoxy and then take it to the boat.
rgleason is offline   Reply With Quote
Old 26-06-2021, 17:54   #11
Registered User

Join Date: Oct 2017
Location: Ft. Smith, AR
Boat: 1983 Catalina 30 5411 STD Rig
Posts: 73
Re: Refrigerator Insulation at engine

Face whatever you use in aluminum foil to reflect the radiant heat.

"The surface of aluminum has the ability not to absorb, but to reflect 95% of the infrared rays which strike it. Since aluminum foil has such a low mass to air ratio, very little conduction can take place, particularly when only 5% of the rays are absorbed."
How Radiant Barrier Works: Heat Gain/ Loss in Buildings - Radiant Barrier
fox9988 is offline   Reply With Quote
Old 26-06-2021, 18:50   #12
Registered User
 
Celestialsailor's Avatar

Join Date: Nov 2006
Location: Back in California working on the farm
Boat: Westsail 28 and 14ft.Whitehall pulling skiff.
Posts: 8,725
Images: 5
Re: Refrigerator Insulation at engine

Quote:
Originally Posted by rgleason View Post

Ditto on aerogel. Read up on iut. It is quite amazing. I woulk add a thin sheet of stainless steel to the bulkhead before the aerogel.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming: Wow - what a ride!"
Celestialsailor is offline   Reply With Quote
Old 27-06-2021, 03:54   #13
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 15,260
Re: Refrigerator Insulation at engine

Thanks for reminding me of this. Several layers of this with some space between would help. Perhaps it is the best top surface because it won't increase the noise too much.

Super Rģ Plus Heavy Duty - Radiant Barrier
rgleason is offline   Reply With Quote
Old 27-06-2021, 04:33   #14
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 15,260
Re: Refrigerator Insulation at engine

Actually since aerogel is mostly expensive air, inter layering the reflective membrane would help.


Here are some other links for aerogel and insulation
Search "aerogel" https://www.cruisersforum.com/forums...rchid=34090741

https://www.cruisersforum.com/forums...-a-247594.html

https://www.cruisersforum.com/forums...ox-247990.html

https://www.cruisersforum.com/forums...ft-220879.html

https://www.cruisersforum.com/forums...rt-226746.html

These are generally larger projects than mine.
rgleason is offline   Reply With Quote
Reply

Tags
engine, insulation, refrigerator

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Refrigerator Box insulation rebuild, Isotherm 2351 akopac Construction, Maintenance & Refit 48 11-06-2021 14:33
Refrigerator Insulation rms95835 Plumbing Systems and Fixtures 5 19-04-2017 08:40
Lid insulation for refrigerator RDW Construction, Maintenance & Refit 2 14-04-2015 11:15
Refrigerator box, new insulation question skipmac Plumbing Systems and Fixtures 13 26-04-2012 12:37
Engine room insulation? Strygaldwir Engines and Propulsion Systems 22 26-11-2006 10:34

Advertise Here


All times are GMT -7. The time now is 01:38.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.