I had heard rumors of gas turbine propulsion, but steam turbines would make more sense from a developmental perspective, since Type 001 and 002 use ST and the future CVN class will use ST as well.
CV-18 Fujian/003 CATOBAR carrier thread
- Thread starter Jeff Head
- Start date
Unfortunately, 60 days is too outdated to keep up with last week's news.
lcloo
Captain
My understanding is QD models gas turbine are for Industrial power generation while QC models are for ship propulsion. AECC official website cited all QD gas turbine are for 工业发电, meaning Industrial electrical power generation. QD probably stands for qidian 气电 (abbreviated for 燃气机发电）.
QC models have been cited for ship used through out many years, and QC would be for qichuan汽船 (abbrivated for 燃气机船用）.
If the Chinese use gas turbine for this carrier, the gas turbines would certainly not be unique to this ship. It would almost certainly be Identical to propulsion plant on the 055 DDG, but doubled up. So there is neither significant additional logistic imposition in making her gas turbines powered, nor any significant developmental risk.
So I see no particular benefit to making this carrier steam turbine powered merely because Her predecessors inherited a soviet bequeathed steam plant, while her nuclear successor will also have to be steam powered. The steam plant on the Chinese nuclear carrier will almost certainly be very different from the ones on Liaoning and ShanDong. For one thing as part of nuclear plant it will likely be a wet steam unit, and not operate with supercritical steam like the plant in Liaoning. This carrier almost certainly will not use anything like the steam plant intended for her nuclear successor. what is the benefit of shoehorning supercritical steam plant into a ground up carrier design?
So I see no particular benefit to making this carrier steam turbine powered merely because Her predecessors inherited a soviet bequeathed steam plant, while her nuclear successor will also have to be steam powered. The steam plant on the Chinese nuclear carrier will almost certainly be very different from the ones on Liaoning and ShanDong. For one thing as part of nuclear plant it will likely be a wet steam unit, and not operate with supercritical steam like the plant in Liaoning. This carrier almost certainly will not use anything like the steam plant intended for her nuclear successor. what is the benefit of shoehorning supercritical steam plant into a ground up carrier design?
I don't think it would be identical to the ones in the 055. The carrier should require 150 MW at the lowest to the 200 MW preferred. I am not ready to see eight QC280 turbines running that thing. The engines should be derived from land based power generation units. My speculation is four x QC400 gas turbines, each a 40MW unit based on the QD400 power generation unit, combined with 4 x 12 MW diesel engines, like those used on the Type 075.
Argument against using gas turbines could be on the exhaust management. Might this require a twin island arrangement with two funnels for each island? EMALs would have better synergy using naval derivatives of gas turbine based electrical power generation units.
Argument for using steam turbines is an easier transition to nuclear power and better synergy with a steam catapult. However, boilers are a p**s of s**t to maintain. They don't nickname that particular US carrier "shitty kitty" for nothing. Was it last year or the year before that someone died a horrible death from leak in that Indian carrier's boilers? You can sense PLAN's silent opinion about steam engines, with DDG 167 Shenzhen being the only steam powered destroyer to do a Gulf of Aden escort mission, only did it once and never again. The four Sovremennys and the two 051C never once accomplished a single Gulf of Aden task force mission.
Argument against using gas turbines could be on the exhaust management. Might this require a twin island arrangement with two funnels for each island? EMALs would have better synergy using naval derivatives of gas turbine based electrical power generation units.
Argument for using steam turbines is an easier transition to nuclear power and better synergy with a steam catapult. However, boilers are a p**s of s**t to maintain. They don't nickname that particular US carrier "shitty kitty" for nothing. Was it last year or the year before that someone died a horrible death from leak in that Indian carrier's boilers? You can sense PLAN's silent opinion about steam engines, with DDG 167 Shenzhen being the only steam powered destroyer to do a Gulf of Aden escort mission, only did it once and never again. The four Sovremennys and the two 051C never once accomplished a single Gulf of Aden task force mission.
Sadly its not looking like a launch will happen in 2020 right? What are the chances? 10%? Wonder what people think here.
If you could guess what is most likely? Q2 2020? I guess they are having problems with the EMALS
If you could guess what is most likely? Q2 2020? I guess they are having problems with the EMALS
I think there shouldn't have been much realistic expectation for 003 to be launched in 2020, I'm not sure why you believe a launch in 2020 would have been reasonable to expect.
I personally have predicted for the last year or so that it would most likely be launched in 2021.
... But the launch date has nothing to do with the EM catapult's development, and there's been no rumours linking the launch date with the maturity of the EM catapult.
The reason why it is likely to be launched in 2021 is simply a reflection of when work on building the ship started and comparing it with the pace of construction of other carriers either in China or elsewhere.
Any suspicions on the construction pause of the last few months?
edit: suspicions of what is going on
I don't know what pause you're talking about.
We've seen additional modules become fabricated and set in the fabrication area, and the movement of the mobile roof covers suggests assembly of the modules is continuing apace.
