It runs without water until it's flooded so i dont see why not, it would probably take longer to stop without the water but should be able to
From what a could see when I rode Pulsar the water trough is slightly below the water line so automatically fills the trough when the pumps are off, so if there was a power cut I imagine the splash section would auto fill and slow the train like an usual cycleBut is it programmed to do that?
Another question would be what happens if the splashpool flooding malfunctions? Will it by itself come to a stop in the correct place or will the ride ops have to evacuate it and call over maintence to reset the ride after the flooding is fixed?
This is correct - it can be seen quite clearly here (note in particular the pumps that start up to drain the splashdown once the train has passed through its final time):From what a could see when I rode Pulsar the water trough is slightly below the water line so automatically fills the trough when the pumps are off, so if there was a power cut I imagine the splash section would auto fill and slow the train like an usual cycle
The short answer is it will not work without water in the channel.
The rides control system is expecting to see certain water levels at specific points during the ride cycle. If the reported level is not what the system is expecting then the ride shuts down with a fault displayed.
That being said, it is possible to fool the ride into thinking the water level is correct in order to make it run, but then you would end up with a boat that wouldn't stop like it's being expected to and would likely overshoot the motors, parking itself back in the splash area with no way to recover itself. However, just because something is possible doesn't mean it should be done. Particularly if it involves overriding safety critical features such as a significant ammount of braking power.
How I picture you saying this.But.... but.... Pulsar does work without water
I had this convo with a co-worker and really didn't know how often energy storage tech is applied in amusement parks - is it common to use a capacitor for short-term energy storage with LSMs? Under the right operational conditions (and assuming you can crank enough operational cycles per hour), it could definitely be a cost efficient solution, but wasn't aware if that is the actual case.They could indeed have a dry mode added that basically ignores the water level and gate sensors and alters the overcurrent threshold and braking curve for the LSM's to allow for the drive having to provide all the braking power.
As far as extra equipment is concerned, the only thing that would need changing is how much energy the LSM system can handle in braking mode. The drive will either use a resistor grid to dissipate the energy as heat or a capacitor bank to store the energy for use on the next start up.
The system should be capable of providing a full motor only stop for safetys sake, but I doubt it would be capable of doing it every cycle.
If the drive is not set up to handle stopping a boat without the water doing most of the work, you would run into slight problems............. like fireand capacitors that want to become small nuclear weapons.
I'ts not impossible to do, I just don't think it's worth doing considering it's likely never to get used that way.
But.... but.... Pulsar does work without water, of course it does, it does it on every single lap. The train passes through the channel 3 times without water, right? Backwards, forwards and backwards again. If, for whatever reason, the channel doesn't fill up with water in time for the fourth and final pass, then... well, what can you do about it at that point? Yes, the ride control system may recognise that the water level isn't what it should be, but without any brake fins on the far tower it won't be able to do anything about it, apart from maybe apply the actual brakes on the speed hump a bit harder so it doesn't overshoot the station. Even if it does overshoot the station, it would only start climbing the near tower and then roll back anyway, right?
Bottom line is... riders wouldn't get wet. End of. ?
I had this convo with a co-worker and really didn't know how often energy storage tech is applied in amusement parks - is it common to use a capacitor for short-term energy storage with LSMs? Under the right operational conditions (and assuming you can crank enough operational cycles per hour), it could definitely be a cost efficient solution, but wasn't aware if that is the actual case.
You are correct, in order to start the ride, the system needs to see a low water level so that the boat can be chucked up the tower a couple of times.
The gates that control the water level would be set up so that if there is a failure, the water gets dumped back into the channel.
Regenerative braking is becoming more common but is still less popular than resistive braking.
The new Gyro Swing at a Swedish amusement park generates 4-G forces and moves at over 100 km/h, with ABB’s variable speed drive keeping the fun safely under controlnew.abb.com
LSM's on coasters aren't really suited for regen braking because they are only ever used as a brake in an emergency as opposed to the station drives which are used to stop the train every cycle.
Next time you ride Colossus or Stealth (or pretty much any Intamin for that matter) pay attention to the station and you will notice a distinct lack of friction brakes. This is because every time the train slows down and stops in the station, the drives are using dynamic braking and sending the power to a resistor grid.
Helpful! Since I work with electric vehicles for a living, I deal with electric motors and regenerative braking all the time; definitely a fun moment where your profession jumps to your hobby!Or pretty much... any B&M
When you say “resistor grid” - is this just a matter of dissipating the energy across the structure (essentially grounding current)?
Or pretty much... any B&M
I would have thought Mack would have at least a dry maintenance mode where they can cycle it.
I'm sure if a customer requested the option to run it dry they would oblige, sort of like how you can get a Super splash with adjustable mag brakes to alter the amount of splash depending on the time of year.