Vertical Velocity

[Drkstarboard]

I have a question. Does V2 ever overheat but not breakdown? I'm asking because when My friend and I rode V2 last saturday V2 had a burning smell. Then again V2 did breakdown for 2 minutes before we rode. Anyway does anyone know?

[rct2wizard360]

I dont think it can but I Aero know's tha ride back and forth he should know.

[Aero737]

Yes, it can overheat, just as any other ride at the park. But because of the intense voltage and heat generated with the current, it is very suceptable to overheating, hence the reason why there are large cooling fans over the LIMs. In the winter, nice warm air blown off the electronics blows over the train.

Perhaps some of you who have a bit more knowledge on this ride can answer a bit more, but I don't think that overheating is really a problem. During intense hot summer days the ride seems to cycle normally. The temperature this weekend was not opressive (low to mid 80's). I don't think that the burning smell was the ride overheating.

[Carlo]

I noticed that they installed 4 new A/C Units in the utility Room for V2. (Which is under the station)

[FParker185]

The ride overheats I'd say on average every few hours, maybe a bit more on hot days. I hear there is a rule in place, they have to wait a certain amount of time between cycles(like either 60 or 90 seconds I think it is) before dispatching it again, and that helps the problem. Really it's just the nature of LIM technology when used in that fashion. And it never really causes a major problem, usually the ride just goes down and either maintenaince or a supervisor has to reset the ride and wait a few minutes for the blowers to do their thing.

CA Screamin over at DCA has a unique solution to the overheating problem, they just put fountains on the launch track that continiously soak the LIM's with cool water between launches.

[Papas]

That's the same with Xcelerator they have to wait x amount before launching and even if they do sometimes the ride overheats causing closures.

[SFGA Bob]

isn't Xcelerator hydrolic, though? I thought it didn't have any LIMs.

[planea380]

It still gives off a ton of heat.

[Aero737]

According to standard physics equations, when liquids or gasses are compressed then they heat up. Xcellerator uses hydrolics which is a lot of compressed oil. This heats up and becomes less viscous. Maybe Kyle can fill me in on the exact name of that equation (for gasses it's the ideal gas law).

Also, whenever there is an energy transfer heat is released. This is in accordance to the Second Law of Thermodynamics. Friction/Electrical resistance both contribute to this. If anything (even the bearings in coaster wheels) are run too long, they can over heat.

[Drkstarboard]

Someones been studying.

[rct2wizard360]

Physics is the bomb! Aslo what Aero said how the wheels can overheat...its very simple...FRICTION!!!!

[SFGA Bob]

I'm not saying it can't over heat because it uses hydrolics, I'm saying that they're two very seperate systems that behave very differently.

[RagingBullFan]

Its Physics Time!

School is Open.

Ok, First Jason, fluids CANNOT be compressed, their molecular layout prevents that, they turn to a solid if compressed.

Secondly...

The Ideal Gas Law is as follows

PV=nRT
P= Pressure in Atmospheres
V= Volume in L.
n= Moles of Gas
R= .0821
T= Temp. In Deg. Kelvin.

An increase in Temp can result from a increase in either pressure or volume. Usually pressure is what changes, Volume and Moles of Gas usually remain constant.

School is Closed.

[rct2wizard360]

IS there any homework ::hands back dunce cap:: still very impressive kyle.

[RagingBullFan]

Yeah, Tell me what Units of Measure R is in, get it right get a prize.

PM me the answer...

And try to keep at least a little on topic lol

[Drkstarboard]

To much learning inb one day.

[DejaVu28140]

Its Physics Time!

The Ideal Gas Law is as follows

PV=nRT
P= Pressure in Atmospheres
V= Volume in L.
n= Moles of Gas
R= .0821
T= Temp. In Deg. Kelvin.

NO!!! I hate that Ideal Gas Law. Stupid Physics and Chemistry!!

[coasterzak]

I know when I operated S:UE (V2's big brother) that we were told to launch it when the computer is ready. The ride knows when it is getting hot and has to wait for everything to cool down and charge back up. Usually, you couldn't even launch a train within a 60 second interval if you tried. I know for newer impulses (WT for sure) they can launch 45 secs after the train returns to the station. You guys are so lucky your impulse is up. Steel Venom (aka SUE) is yet to open and WT was down when I was at CP. I can't wait to get on an impulse, truly one of my favorite coasters. By the way, the ride can actually overheat. When it does it will get very hot and a warning comes up on the control panel. If you continue to ignore the 'problem' then the ride may E-stop causing everything to just shut down and go silent. Not good.

Edit - yes please, for future reference, it is HYDRAULICS not, hydrolics.

[SFGA Bob]

meh...I was never good at spelling.

I think I've actually seen V2 overheat in the manner that zak described. it launched, but didn't make the full circuit...erm...didn't cycle as many times as it normally does. it stopped on the launch track and all the cooling fans stopped. V2 was actually quiet for once, until everything restarted. when we got on the train, the heat coming off the LIMs was increadible. it was like there was a heating vent right over our heads in the middle of the summer.

[w00dland]

I believe I've also seen that. It wasn't the normal "Ride shuts down then the mechanic comes in 5 minutes and restarts the ride" kind of shut down. It was down for a good 20 minutes and everything turned off. After awhile you could hear the blowers turn on and they would wait for awhile before testing it.

[kahmooza]

One time I was two trains away from my ride and the train launched about 40ft and screeched to a halt leaving half the train out the front of the station.

I dont know how long it was down after that because everyone I was with got scared and wanted to go ride something else.

[Aero737]

If the LIMS overheat, I don't think the cooling fans would shut off. That would be worse for the LIMs. It is like an overheating car. If the car overheats and you drain the antifreeze, the car will take a long while (solid engine block) to cool. If the fans on the LIMs shut off, it will cause problems.

[twixmix0303]

Then again, overheating leads to fires, and it wouldn't be a good idea either to run a fan if a fire started.

[Aero737]

Running a fan straigh down wont do much to fan the flames, even then, there isn't much to burn.

[sixflagsguy5]

I was also in line for V2 when it launched about 40 ft and then stopped.