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...
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...
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...
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...
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...
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]...
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...
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...
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...
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.
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...
Richard, some very interesting questions, particularly the decision to separate the C4 charger whilst C4 was in service. Given that the batteries could not be paralleled, simply separating the C4 Battery Charger from the Station Battery Charger & Battery would immediately leave C4 without any...
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CS Energy has released its technical report into the 2021 C4 424MW steam powered generator failure of May 2021. At least one other independent report is expected to follow. The report is available at...
It looks like Boeing is withdrawing its bid for a safety exemption on 737 Max 7.
https://www.reuters.com/business/aerospace-defense/boeing-withdraws-bid-safety-exemption-boeing-737-max-7-2024-01-30/
OP has not provided specifics of the two separate systems but there could be valid technical reasons for maintaining separation. One example is where the earth of an earth return system (eg. electrified rail) has to be separated from a system (eg TNS) where the earth only carries fault current...
Not my area of experience but aren't these engines designed to contain any dislodged material and isn't there a fire suppression system which would normally extinguish an engine fire?
If so, then it appears that the originating incident might have pierced two levels of safeguards.
ABC (Australia) is reporting an engine fire on an Atlas Air Boeing 747 cargo plane. The link includes the article and a video of the plane on fire. Apparently a tennis ball-sized hole was found above the engine after it landed safely. The Atlas Boeing 747-8 is eight years old according to the...
Xtal01,
Although only a past electronics enthusiast, in the absence of more learned responses, I think your review of the circuit is legitimate. Before replying to your questions I offer the following suggestions.
1. By all reports the "circuit is working" as "they have been used for years"...
If the utilities in your jurisdiction are similar to those in Australia, they often set unrealistic requirements on PV installations without thinking through the ramifications. A good example has been a requirement here to maintain minimum power factor at all times - impossible to achieve if...
