Jump to content
Funding the Forum - Thank You ! ×

SteamyTea

Members
  • Posts

    23493
  • Joined

  • Days Won

    192

Everything posted by SteamyTea

  1. Some cars don't let you do that now. They memory needs to be cleared, easy on my car, just press accelerator and brake then turn the key to the first position. My Mother's old car needed a laptop to change a side light. But I take your point, I work with numpties that have fixed views on everything and will never try anything different.
  2. I work with a Gemma https://www.makeuseof.com/googles-new-free-gemma-4-replaced-whole-local-llm-stack/
  3. Read a bit about Gemma the other day, seems it can be run on lightweight machines. https://deepmind.google/models/gemma/ I still find a manual switch more than adequate.
  4. From the pictures it looks more like a black mould, rather than corrosion. Stainless steels tend to fail when they are in an oxygen poor environment i.e. underwater, this is why they are not used structural elements on boats. Chlorine can affect SS, as can some other cleaning chemicals, but @AliG says his pool does not use chlorine. How is the pool treated, bromine or ozone maybe? Both of those can cause problems. Not sure about the galvanic problems, seems it can happen. This is from the British Stainless Steel Association What Forms of Corrosion can Occur in Stainless Steels The most common forms of corrosion in stainless steel are: Pitting corrosion – The passive layer on stainless steel can be attacked by certain chemical species. The chloride ion Cl- is the most common of these and is found in everyday materials such as salt and bleach. Pitting corrosion is avoided by making sure that stainless steel does not come into prolonged contact with harmful chemicals or by choosing a grade of steel which is more resistant to attack. The pitting corrosion resistance can be assessed using the Pitting Resistance Equivalent Number calculated from the alloy content. Crevice corrosion – Stainless steel requires a supply of oxygen to make sure that the passive layer can form on the surface. In very tight crevices, it is not always possible for the oxygen to gain access to the stainless steel surface thereby causing it to be vulnerable to attack. Crevice corrosion is avoided by sealing crevices with a flexible sealant or by using a more corrosion resistant grade. General corrosion – Normally, stainless steel does not corrode uniformly as do ordinary carbon and alloy steels. However, with some chemicals, notably acids, the passive layer may be attacked uniformly depending on concentration and temperature and the metal loss is distributed over the entire surface of the steel. Hydrochloric acid and Sulphuric acid at some concentrations are particular aggressive towards stainless steel. Stress corrosion cracking (SCC) – This is a relatively rare form of corrosion which requires a very specific combination of tensile stress, temperature and corrosive species, often the chloride ion, for it to occur. Typical applications where SCC can occur are hot water tanks and swimming pools. Another form known as sulphide stress corrosion cracking (SSCC) is associated with hydrogen sulphide in oil and gas exploration and production. Intergranular corrosion – This is now quite a rare form of corrosion. If the Carbon level in the steel is too high, Chromium can combine with Carbon to form Chromium Carbide. This occurs at temperatures between about 450-850 deg C. This process is also called sensitisation and typically occurs during welding. The Chromium available to form the passive layer is effectively reduced and corrosion can occur. It is avoided by choosing a low carbon grade the so-called ‘L’ grades or by using a steel with Titanium or Niobium which preferentially combines with Carbon. Galvanic corrosion – If two dissimilar metals are in contact with each other and with an electrolyte e.g. water or other solution, it is possible for a galvanic cell to be set up. This is rather like a battery and can accelerate corrosion of the less ‘noble’ metal. It can avoided by separating the metals with a non-metallic insulator such as rubber.
  5. Except a house can be in service for multiple generations, so may be others money as well.
  6. You get that drink from the kiddie's milk bar.
  7. Is that the Island of Lost Souls?
  8. SteamyTea

    Due Dil

    It is quite amazing how much information can be gleaned with some cross referencing.
  9. I keep the curtains open. Is that all it has, my phone has that much.
  10. Crapple pride themselves on the quality of their software, so they need to develop less memory hungry applications. If the can't, it just confirms what we all knew, all along.
  11. https://en.wikipedia.org/wiki/2024–present_global_memory_supply_shortage
  12. If you double the diameter of a circle, you quadruple the area. I have often wondered, if cooling (or heating) are marginally small most of the year, if enough flow can be passed though larger MVHR pipework. Just a case of doing the sums and seeing if larger pipework can be fitted in.
  13. Seems so. https://www.bbc.co.uk/news/articles/c87w5ld0p80o " it is hoped the SMRs will be on stream in the 2030s"
  14. Shall we have a sweep stake about how much it will really cost to get the first GWh out. https://www.gov.uk/government/news/great-british-energy-nuclear-and-rolls-royce-smr-sign-contract
  15. Rather minor reduction though. The shipping of petrolchemicals is very efficient. Probably the biggest problem would be processing, it is not a case of drilling a hole and piping it directly into the gas grid. Having grown up on oil refineries, I can tell you that they are not nice places, and very smelly.
  16. They are filming an episode down here, right this minute. I mentioned this episode, the company has gone bust. This is a future episode. I think they are going to get wet.
  17. Make a change from the pavement oysters and pizza that appear on a Saturday morning.
  18. They tend to be the high power, but low energy usage parts of the daily mix. Well they are if you do it right.
  19. Yes, and this is the major problem. Most of 'the savings' are really just playing about with retail tariffs. I can reliably store many kWhs per day in my, nearly 40 year old storage heaters. They have, so far, proved to be 100% reliable.
  20. When you find out, I need to cover some white lines near speed cameras.
  21. That assumes no one else is reducing FF burning. It is quite possibly that we have reached global peak CO2e.
  22. The car, or the motorway? Best to avoid.
  23. That totally ignores the climate change impacts though. And that is before we get involved in public health.
  24. I shall have a look at it when I have time. We need more 'calculators' like this.
×
×
  • Create New...