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1. moffka+(OP)[view] [source] 2023-01-12 21:48:46
Ramping it up is likely the problem, since all plants can reduce power on a dime by just varying the generator coil current I think.

You could just keep it spinning nonstop without a load I suppose, but for anything but nuclear it's not gonna be economical.

replies(1): >>Reason+v2
2. Reason+v2[view] [source] 2023-01-12 22:02:00
>>moffka+(OP)
A nuclear power plant can't just "keep spinning without a load" - all that energy has to go somewhere! If a nuclear plant is disconnected from the grid (tripped), the nuclear reaction must be stopped (eg: by inserting control rods into the core).
replies(1): >>moffka+O5
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3. moffka+O5[view] [source] [discussion] 2023-01-12 22:21:24
>>Reason+v2
Of course it can, just short the generator coils and you have a free brake. The turbine should then still have resistance and shouldn't overspeed. Or just idk, use it to pump some water in a loop or discharge through some resistors. Getting rid of power isn't that hard if you want to do it. Simplest solution would I suppose be to just have an outside radiator that brings the steam to cooling tower levels of manageability so you can throttle the turbine with just a valve.

The thing is, they don't really want to do it if they can save fuel by shutting down.

replies(1): >>Reason+q7
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4. Reason+q7[view] [source] [discussion] 2023-01-12 22:31:36
>>moffka+O5
> "just short the generator coils and you have a free brake"

You'll soon end up with a burning/melted generator.

> "pump some water in a loop"

OK, but you're going to need huge pumps (1000+ MW!). Expensive.

> "or discharge through some resistors"

Again, you'll need extremely large resistors, and a way to dissipate an awful lot of heat. We're talking about a huge amount of energy here!

replies(2): >>Scound+W9 >>moffka+ia
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5. Scound+W9[view] [source] [discussion] 2023-01-12 22:46:44
>>Reason+q7
sadly, my searches for "gigawatt resistor" and "gigawatt electric load" have been fruitless.
replies(1): >>blibbl+Ic
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6. moffka+ia[view] [source] [discussion] 2023-01-12 22:49:05
>>Reason+q7
Pump water in a loop through a radiator to cool the braking generators and the resistor bank :P

Could try also melting some salt on the side.

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7. blibbl+Ic[view] [source] [discussion] 2023-01-12 23:04:49
>>Scound+W9
try "reserve ultimate heat sink" instead of "gigawatt resistor"
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