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At the New York Historical Society today.

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At the New York Historical Society today.

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    How to Restore your 19th-Century Lancashire Boiler to Hold 120 PSI

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    cybersecurity@poliverso.orgundefined
    How to Restore your 19th-Century Lancashire Boiler to Hold 120 PSIThe Industrial Revolution was powered by steam, with boilers being a crucial part of each steam engine, yet also one of the most dangerous elements due to the high pressures involved. The five Lancashire boilers at the Claymills Pumping Station are relatively benign in this regard, as they operate at a mere 80 PSI unlike e.g. high-pressure steam locomotives that can push 200 – 300 PSI. This doesn’t mean that refurbishing one of these boilers is an easy task and doesn’t involve plugging a lot of leaks, as the volunteers at this pumping station found out.At this Victorian-era pumping station there are a total of five of these twin-flue Lancashire boilers, all about 90 years old after a 1930s-era replacement, with them all gradually being brought back into service. The subject of the video is boiler 1, which was last used in 1971 before the pumping station was decommissioned. Boilers 2 and 3 were known to be in a pretty bad condition, and they needed a replacement for boiler 5 as it was about to go down for maintenance soon.Although the basic idea behind a Lancashire boiler is still to boil water to create steam, it’s engineered to do this as efficiently as possible to save fuel. This is why it has two flues where the burning coal deposits its thermal energy, which then goes on to heat the surrounding water. The resulting pressure from the steam also means that there are a lot of safeties to ensure that things do not get too spicy.Thus after removing lots of scale, grime and general detritus from decades of neglect, these safeties were all inspected and repaired or replaced as needed. Following this it was time for the hydraulic pressure test, which simulates the pressure from steam, but without all the fuss and lethal dangers. This took a few tries and a number of leaks, issues with old piping and ominous creaking, but eventually the boiler hit the 1.5x safety margin of 120 PSI and stayed there for the required thirty minutes without further issues.This clears boiler 1 for its official inspection by a boiler inspector who will sign off on it being taken back into use, and allowing this boiler to resume what it was doing up till that day in 1971 when the pump station was decommissioned.youtube.com/embed/sOkDChp-Vpk?…hackaday.com/2026/02/23/how-to…
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    how do you "turn off denormals"

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    kevingranade@mastodon.gamedev.placeundefined
    @aeva I thought that's what we did by coming here.
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    cwebber@social.coopundefined
    If data is the new oil then datacenters are the new oil pipelines.
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    hollie@social.coopundefined
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