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Recent content by EnzoAus

  1. EnzoAus

    Correct way to define a cable sag

    Costin, please note that the Australian Standard does NOT quote a 6% maximum, so it would be useful to get the source document for your quoted 6%. It is always possible that your source (be it a company policy or other standard) may have a different definition of sag.
  2. EnzoAus

    Correct way to define a cable sag

    Australian standard AS7000:2016 for Overhead Line Design defines the vertical sag as "The maximum vertical departure of the catenary from a chord joining the support points (approximately mid span)". Whilst this will be at the midpoint of the span if both ends are terminated at the same...
  3. EnzoAus

    To replace faulty power alternator with a smaller unit

    The following link might be useful. It is a technical note about sizing an alternator to a gas turbine (you did not mention what type of turbine)...
  4. EnzoAus

    CS Energy Ltd Callide C4. The coverup continues after RTS at vast cost with no insurance

    Last year (2024) the Australian Energy Regulator launched Federal Court action against Callide Power Trading (CPT), over the failure of the Callide C4 unit. "On Tuesday, a Federal Court judge ordered CPT, which is a "scheduled generator" and a "registered participant" on behalf of the joint...
  5. EnzoAus

    CS Energy Ltd Callide C4. The coverup continues after RTS at vast cost with no insurance

    More local commentary (linkedin) from concerned individuals in Australia if you filter out the political biases. There is no doubt that one can't avoid the sense that those individuals responsible for the incident seem to get off scot-free whilst the public pick up the bill...
  6. EnzoAus

    type b plug for thailand

    The Thai Industrial Standards Institute lists TIS 166-2549 as a compulsory standard for plugs and socket outlets for household and similar purposes. The link of all compulsory standards is available at https://www.tisi.go.th/website/standardlist/comp_thai/en. It might be appropriate to check...
  7. EnzoAus

    thread248-375754 Hello everyone.

    Martin, we don't have underfloor heating in my part of the world, but given that you are fairly certain that the sound is emanating from the heating wiring, then the hum is probably the result of magnetic forces on the wiring that are not satisfactorily restrained. May I suggest downloading an...
  8. EnzoAus

    Callide Power Station C4 Generator Failure Update

    For completeness, the final Brady Heywood Report can be found at https://www.csenergy.com.au/news/release-of-brady-heywood-report-and-c3-cooling-tower-report. It's a 28MB download BUT the appendices have not been included! It may be interesting for some to note the issue with the particular...
  9. EnzoAus

    Who constitutes a client of a professional engineer?

    James, I'm in a different country in a different engineering profession, but have previously taken on several challenges to correct perceived "wrongs"; both professionally and otherwise. Whilst I had some wins I have come to recognise that my crusades required at least some obsessiveness which...
  10. EnzoAus

    Callide Power Station C4 Generator Failure Update

    The draft Brady Heywood reports into Callide C4 incident have been released and are available from CS Energy's website. https://www.csenergy.com.au/news/release-of-draft-brady-heywood-reports-into-callide-c4-incident A quick recap of the technical causes for those needing a refresher: [ol 1]...
  11. EnzoAus

    Callide Power Station C4 Generator Failure Update

    Richard, A 3 year delay in producing an independent report seems unacceptable and the use of legal privilege to retain the rights to that investigation raises doubts about any intended transparency. It's disappointing, particularly given that CS Energy is a publicly owned company. An online...
  12. EnzoAus

    Green jet fuel - problematical

    Tug, If the dataset, albeit large, is constrained to a specific geographic area, the suggestion, respectfully, is that the results from any analysis of that data may not be representative of other geographic areas. IF the NTSB are demonstrating no increase in turbulence related accident rates...
  13. EnzoAus

    Green jet fuel - problematical

    Tug, Thanks for the link to the NTSB paper above. Having been a passenger on a Europe to Singapore flight less than 12 hours after the recent one where a passenger died during a severe turbulence event, I found it very interesting. The seatbelts sign was called twice that I recall during our...
  14. EnzoAus

    Increasing number of ads on Eng-Tips

    I use latest Firefox browser with Adblock Plus on my PC and get the occasional advertisement. My android devices using DuckDuckGo browser also gets ads. Sometimes more frequently than at others. Presently the impact seems to be a bit less than in the past.
  15. EnzoAus

    CHEVRON announces its first solar-to-hydrogen production project in California's central valley

    Greg, I think your error was in inverting the division. If 43MJ elec produces 1 kg H2 with a calorific value of 142 MJ/kg, the efficiency is 142/43 (330%). My understanding of the typical conversion efficiency is that it is about 50% excluding pressurisation and transportation. Maybe a 30MW...
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