[Stoves] the 150 gasifier in operation in Vietnam (Matt Redmond)

[Paul Olivier]

Matt,

One way to solve the problem of what material to use in a wire mesh dome
 is to view the wire mesh as a disposable item that might last but a few
months.
I found an easy way to insert a 304 stainless steel wire mesh disk (30
mesh) into a rigid receiving structure that is dome-shaped.
When a flat wire mesh disk is pushed into the shape of a dome, it exerts a
lot of pressure against the receiving structure.
Nothing has to be welded.
When it wears out, it is pulled out, and another disk is put in its place.

Thanks.
Paul

On Wed, Mar 7, 2012 at 7:44 PM, Matthew Redmond <mredmond3 at gatech.edu>wrote:

> Ron, List,
>
> Interesting find. You reported that the silicon carbide meshes for drywall
> sanding are really just paper meshes coated with silicon carbide.
>
> I was trying to think of other materials that can handle high temperatures
> and ceramics came to mind. Ceramics are often used in metal casting
> processes. Aluminum Oxide, or even some sorts of fiberglass have high
> working temperatures.  Ceramics generally have higher emissivity than
> metals (~ 0.7 I think).
>
> It looks like fiberglass meshes are often used to filter molten aluminum
> and iron for casting operations.  Perhaps something like this would have
> longer lifetimes? Again, cost may become a big issue, but here are 2 that I
> found:
>
> http://www.ecplaza.net/trade-leads-seller/fiberglass-mesh-for-aluminium-filtration--6816138.html
> http://www.king-in-china.com/productview.asp?id=954
>
> Just throwing a few more ideas out there.
>
> -Matt Redmond
>
>
>
>


-- 
Paul A. Olivier PhD
27C Pham Hong Thai Street
Dalat
Vietnam

Louisiana telephone: 1-337-447-4124 (rings Vietnam)
Mobile: 090-694-1573 (in Vietnam)
Skype address: Xpolivier
http://www.esrla.com/
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