Insulation of FRP (fiberglass reinforced plastic) Tanks

H

Hock Siew

Dear everyone,

I have a question regarding the insulation of FRP tanks, which I hope that someone can help out with.

We have a proposal for a tank of which is required to store hot water at 80°C. We need to provide insulation for the walls of the tank if the outside of the tank is 25°C. We propose to have FRP panels with insulating material inside. I have the value of thermal conductivity for the material that we will use. The tank is 4m x 4m x 4m. I am trying to work out how thick should the insulation material be.

I am assuming the following,
- That the insulation of the FRP material is negligible and that we are only considering the insulation of the insulating material.
- That the corners of the tank are negligible and we only need to consider the surfaces. Although the surfaces will not actually be flat; I would assume flat surfaces. Therefore, the size of the tank would actually be irrelevant.
- We will not consider the roof of the tank. Whether the tank is full or not, the insulation can only be better if the tank is not full.

Thanks very much for any help that anyone can give.

Regards,
Hock Siew
 
M

machrk

Re: Insulation of FRP Tanks

hi

have you seen the http://www.nace.org online corrosion forums ? - could be a good question to post there

- you don't have to be a financial member of NACE

cheers
@KerrieAnne & @steelyqueen on Twitter :agree:
- NACE financial member
 

harry

Trusted Information Resource
There are contractors specializing in this kind of work. Just get them to give you a proposal - based on what and how you are going to use the tank.
 
Hi

Long ago we worked on similar projects; at that time we used two layers of FRP sheets to make the tank with the gap in between filled with Phenolic Foam. I don't know if this is still acceptable and available. Please check.

With kind regards,

Ramakrishnan
 
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