Looking for "Australian boiler test" document

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Woodbass34

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Hello! My name is Casey and I'm having a difficult time trying to find a document that I previously bookmarked. I've tried using the search feature as well as searching the filename on google etc. but had no luck.

It was a pdf document where the authors pressurized several boilers to destruction. It was very interesting and I sadly did not download it. The link now is broken: https://cdn.gscalecentral.net/2018/02/402343_boiler-tests1.pdf "Microsoft Word - Jointdesigntestsfinal1.2.doc - 402343_boiler-tests1.pdf"

I was wondering if anyone would be kind enough to post the document or point me to where I could find it again?
 
Woodbass34 said:
Hello! My name is Casey and I'm having a difficult time trying to find a document that I previously bookmarked. I've tried using the search feature as well as searching the filename on google etc. but had no luck.

It was a pdf document where the authors pressurized several boilers to destruction. It was very interesting and I sadly did not download it. The link now is broken: https://cdn.gscalecentral.net/2018/02/402343_boiler-tests1.pdf "Microsoft Word - Jointdesigntestsfinal1.2.doc - 402343_boiler-tests1.pdf"

I was wondering if anyone would be kind enough to post the document or point me to where I could find it again?
Click to expand...
Not from your neck of the woods but this should do. Cert link bottom of green preamble.
www.16mm.org.uk

Loco Maintenance and Pressure Testing - Association of 16mm Narrow Gauge Modellers

Locomotive Maintenance Documentation Insurance and Boiler testing video This video is an explanation and demonstration of the Insurance and Boiler testing scheme for members of the Association. How to Carry Out Your Annual Steam Test Not for you, you’ll understand, but for your locos. We all...
www.16mm.org.uk www.16mm.org.uk
 
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Woodbass34 said:
Hello! My name is Casey and I'm having a difficult time trying to find a document that I previously bookmarked. I've tried using the search feature as well as searching the filename on google etc. but had no luck.

It was a pdf document where the authors pressurized several boilers to destruction. It was very interesting and I sadly did not download it. The link now is broken: https://cdn.gscalecentral.net/2018/02/402343_boiler-tests1.pdf "Microsoft Word - Jointdesigntestsfinal1.2.doc - 402343_boiler-tests1.pdf"

I was wondering if anyone would be kind enough to post the document or point me to where I could find it again?
Click to expand...
I have a copy but am unable to attach it here. If you send me a DM with your email address I can forward to you. Something every live steamer ought to read.
 
I think the OP wants the figures that the boilers failed at?

But not knowing the original document, I would guess whilst entertaining and food for thought, it is statistically meaningless?

If each boiler-type was a sample of one, it means nothing except to that one boiler. - You would need to test several, and hopefully get similar results for all of them, to get meaningful data.

Other than anecdote, and negating 'Model Engineering' scales, are there many (any) verified cases of so-called boiler explosions?

PhilP.
 
PhilP said:
I think the OP wants the figures that the boilers failed at?

But not knowing the original document, I would guess whilst entertaining and food for thought, it is statistically meaningless?

If each boiler-type was a sample of one, it means nothing except to that one boiler. - You would need to test several, and hopefully get similar results for all of them, to get meaningful data.

Other than anecdote, and negating 'Model Engineering' scales, are there many (any) verified cases of so-called boiler explosions?

PhilP.
Click to expand...
Several boilers of different types were tested. They were all copper and silver soldered. Generally they distorted at around 400 psi, either by barrelling or squashing the flue tube. Most finally leaked at around 1,000 psi when a split opened up around a bush. None of them exploded!
 
As ever speed reading got the better of me, as a general rule fixtures and fittings joints tend to go before a boiler blows. I seam to remember Those tests vaguely, just the boiler sealed as well as it could be and heated up to extreme. I doubt one of our puffers could last to that pressure with steam likely being emitted via the regulator first quite likely.
 
The boilers in the tests were all identical construction. They were hydrostatically tested to failure and pressures recorded.
The central flue would crush before the boiler failed. This would have put out a fire in the boiler before any further steam pressure could be raised. The tests showed that an explosion of a boiler that is constructed properly with silver solder assembly is highly unlikely to fail. (Barring stupidity of the user.)
 
PhilP said:
I think the OP wants the figures that the boilers failed at?

But not knowing the original document, I would guess whilst entertaining and food for thought, it is statistically meaningless?

If each boiler-type was a sample of one, it means nothing except to that one boiler. - You would need to test several, and hopefully get similar results for all of them, to get meaningful data.

Other than anecdote, and negating 'Model Engineering' scales, are there many (any) verified cases of so-called boiler explosions?

PhilP.
Click to expand...
I found it to be a very interesting document, because I haven't come across one like it before. Just wanted to save it to look at from time to time.
dunnyrail said:
Not from your neck of the woods but this should do. Cert link bottom of green preamble.
www.16mm.org.uk

Loco Maintenance and Pressure Testing - Association of 16mm Narrow Gauge Modellers

Locomotive Maintenance Documentation Insurance and Boiler testing video This video is an explanation and demonstration of the Insurance and Boiler testing scheme for members of the Association. How to Carry Out Your Annual Steam Test Not for you, you’ll understand, but for your locos. We all...
www.16mm.org.uk www.16mm.org.uk
Click to expand...
Thank you for the link, I will definitely be looking through the info!
PhilP said:
I think the OP wants the figures that the boilers failed at?

But not knowing the original document, I would guess whilst entertaining and food for thought, it is statistically meaningless?

If each boiler-type was a sample of one, it means nothing except to that one boiler. - You would need to test several, and hopefully get similar results for all of them, to get meaningful data.

Other than anecdote, and negating 'Model Engineering' scales, are there many (any) verified cases of so-called boiler explosions?

PhilP.
Click to expand...
I just like archiving things I find interesting. I am in the process of making a boiler and will be testing it with pressurized water. I just wanted to get my hands on the document again!
 
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