Swimming pool wavemachine fan start up - Westwave 

To bad they can't amplify the sound of the motor startup somehow so the people in the pool can hear it start too.

Kevin Benecke Some poeple get scared of it tho

@TBB747 I've heard a wolf howl at Great Wolf Lodge when their wave pool started

​@@KevinBenecke You can often hear it if you're underwater and close to the pool.

+Melvin Blunk Just don't ask Turbo Yoda if it'll fit on your Honda... :P

+Melvin Blunk Not only that, but it'd be fun to see if your intake manifold could reach orbit. :)

+weasel2htm Ha, liking the MCM reference.

💀💀💀

You wouldn't need an engine. The massive amount of air that generates would be plenty to move a small car.

Revising---I just watched another video on wavepools, with hydraulic flappers. So they do use flappers.

CassetteMaster 7 8886

My dad told me the same thing when I asked him how wave pools work when I was little.

When I was a kid I always imagined the grills were there to hide huge, wide-bore sucking pipes that could suck a kid in lol. Turns out it’s nothing like that. 😅

Get four huge check valves and then you have a FULL WAVE RECTIFIER!

Not really for me

See that mesh? That mesh is there not so you don't get sucked in but so you aren't crushed into the fan, as there is still airflow, look up differential pressure safety videos.

You just have to see more of it and the brain gets used to it. ;-)

It is

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-e_sk8t4XNV0.html This one is worse...

Indeed 😌

what is that wet slapping sound at 0:27 ?

@@TacticalPhoenixYT that is a air flaps opening up and closing, basically prepping itself for the blower startup

@@alexcaracal1017 thx

More like the people in front ofnour school at 8am

FrontSideBus Same here. I can't handle the excitement when my woodwork teacher starts up the rotary phase converter in the workshop. Could listen to it all day.

Same here mate

It's exactly what my laptop fan sounds like when I open Chrome.

Need this boost for running Minecraft on a windows XP 😂

***** It is going to happen... I have the videos. I just need the time to edit and upload... very different than what is seen here.

+LakeNipissing is your video uploaded yet?

+KillerJoeFIN Not yet. I have added ten or so recently, but I have dozens of videos to prepare, with this mechanical / hydraulic wave machines being one that I want to get right. I was hoping to make it somewhat of a technical / educational video than just camera footage without explanation of the operation principle. Winter brings a bit more spare time, so I am getting to videos. Proof... ten or more uploaded in the past month. I am getting to this!

Correct timing of the opening/closing and correct design of the baffle height in the pool. As water rushes back into the chamber the exhaust closes and the blower port opens to push water back out. If it builds up enough momentum in the water and is not timed right the water could go back into the blower/baffle room.

dash8brj 7x full load amps if memory serves me correct

@@julianpiper240Well usually the inrush current for a direct drive motor is in the neighborhood of 400-600% Full load current, but at least to my ear the motor does not have the usual oompf when you use a direct start so i'd suspect its most likely a soft starter. (Cant hear a star-delta transfer either) Just quickly calculating with the location given in the video (NZ) and the power of the motor, The full load current for the motor would be around 200A, so with a softstarter you could expect the current to hover around 400A at start. :)

Stick your face near it

@@John-cq9ew likely star connected, Ray says in the description it is a D.O.L. start and starting in delta would cause a rather large demand on the installation and is not permitted in the wiring rules or any Service & Installation Rules for motors that size. Reduced voltage, Y-D or primary resistance starters are all possibilities. More likely to be permanently connected in star as there is no real need to gain the extra torque from a delta config. I do wonder how large an autotrans starter would be for a blower this size?

​@@julianpiper240 With how smooth it started and ramped up I almost think it may be on a VFD? That would also give them excellent control over wave size and probably pay for itself with energy savings in the first year.

ooo almost, id still prefer the next size up, just to be safe ;)

You mean and GPU cooler. Or Intel CPU cooler.

nope i mean its the only way to keep the amd crap CPUs cool

LOL

Hey man don't go hating on AMD...

MTTT3000 Thanks mate for your comments.

+MTTT3000 I think that's coming up from a soft start not across the line, but either way, yeah, sounds fine.

RODALCO2007 how can I start the machine of the wave action

@@kleetus92*DOL using a single contactor

I'm a fan

It's prob the exhaust from one of the ports after the air blows in as it rushed back into the room. not the fan directly either suction in or air blowing out of pipe.

When the flapper valves open the air will blow your hand away from the pipe. Incredible amount of pressure and energy go through these machines! More than enough to make a lightbulb swing.

RODALCO2007 I have a question how can I to start the machine room of the waves

Actually, it depends on the weight of the blade.

Ikr, I want to use er as a leaf blower :)

Those valves control the airflow to the pressure chamber which makes the waves.

Oh

Although less efficient, this system is much safer. No-one could ever get trapped in the moving parts of the machinery. It's all high volume low pressure.

@@BartSliggers Which system? The blower one shown in this video or the pusher-style ones?

@@mbcommandnerd the one in the video

We have some like these in the US, in fact some are vacuum driven which create huge waves.

They replaced those hydraulic sorts with pneumatic systems in the late 80s because of safety issues. It’s much easier to get caught up in or injured by hydraulic plates and pistons than it is to be injured in a pneumatic wave machine. That said I have heard a few stories of injuries due to these machines, one of which happened in my town. That’s why they started using ropes to keep people away from the grates and started insisting the caissons were covered by grates to stop people swimming inside the chambers. It’s fine when the machine is off but if you swim inside and the machine starts, you’ll get some serious pressure related injuries or possibly drown. And there’s always one that tries those stunts lol.

It uses that Same induction motor

So your idea is the desk floating on the air? The alternartive would be having your notes,computers etc far away.

Lol a meat grinder. Imagine pushing a giant sausage into the inlet while its running :D

WaveTek

Guillermo Lovato By Triangle, im assuming you mean Delta. VFD's can be set up ethier way but they don't switch from one to the other. Its either Star or Delta, only difference with a VFD is the ability to change the way the motor starts up as well as the speed by adjusting the frequency. Besides that, mostly set up the same way as a traditional AC 3 phase motor, just through the vfd itself rather then a direct power supply with a contactor/starter.

ikr

The valves are above the pool water level. When the air valve opens, air from the blower is directed into a concrete chamber at the end of the pool, forcing the water out. Then the valves switch, which lets the air out of the chamber, so it fills back up with water.

The other machinery were water circulating and air pumps for the spa's. That motor doesn't have a very long run down period as the impellor imposes a lot of drag.

Did enjoy the wave machine videos!

@@blockhead100 same 😊

Its this channel, you are right there. It went during time when I was dealing with various PTSD related illness as well. I still deal with them now and now I have a carer and support worker for it now.

@@mrunixman1579 Hi Vince, nice to see your comment! Will check out your other channel. Glad to hear you've got support with the PTSD. Stay safe. (Also, have you seen what's happened at Oasis Swindon, its a real shame - glad you got to see it / film it when you did)

@@blockhead100 Cheers for that, I am under close watch by nurse and support worker at the moment. It is indeed a shame about the oasis swindon.

~10000 CFM or more

douro20 I believe that was how the wave machine, or machines, worked at the West Edmonton Mall's "World Water Park" as well. It sounded a bit like a compactor in the back of a garbage truck when it was about to produce a wave.

OlegKostoglatov Exactly. There are 12 hydraulic rams (with only 8 active today for safety reasons) with 1,500 HP to generate the waves at the World Waterpark's _Blue Thunder_ wave pool. Those are seriously powerful machines, and have no problem making waves large enough for surfing.

Different makes have different methods

The one I filmed is really loud. Has a 135 HP motor also

The alarm is to warn parents with small children to keep an eye out for them or get them out of the water before the waves start.

Interesting reading 450 kW AC motor that is a lot for an organ.

I think that is the combined rating of all 9 blower motors

+Samos12 Air gets pushed into a large chamber which pushes the water down in it, pneumatic valves open and close and cause surging of the water which goes through large holes into the pool.

***** No I don't service that plant. I am a regular pool visitor and was curious to see how the machine worked. Just asked the supervisor and arranged a time to see the machines.

RODALCO2007 What an awesome supervisor!

***** They keep the doors open in this plant room. The airpressure is very noticeable

Hey, did the same at our waterpark, except they have 12 chambers and a single blower which is huge. They let me stand in the doorway and it was so god damn loud. I put the video on my channel, it is called Adventure Landing Wave Machine Plant room

Wow

Yukari Yakumo Strain doesn't seem to be to fluctuating as the motor is not growling. Half valves are open while the other half ducted valves are closed

+Yukari Yakumo It is a centrifugal blower, where restricting the airflow actually reduces the load on the motor. That is why a vacuum cleaner speeds up when you restrict the flow.

No, the motor and blower are underneath the high floor area between the wave pool and the lazy river. There is the motor room/valve area and a surge chamber. The air is pressurized underneath by the blower and blown into the surge chamber via the valves, into the surge chamber adjacent to the pool.

Thomas Pease It sounds more like an AHU blower

Ours in my video is 135 HP

We should make it jet engine powered instead.

Dude! That would be a perfect wave machine/ pool heater as well! You’d have to force the valves to open and close really fast if ur going to use a turbine lol. Too much air pressure will blow the water down below the chamber grilles causing huge bubbles to appear outside the pool wall.

Rieon It’s a metal flap valve

XYZedd: Huh? Zyan: What is that? XYZ: Wow..that looks weird.

There is a 1000 kVA transformer on site. No issues with D.O.L there.

The machine is branded and made by WaveTek, if you look closely at some parts of the machine, it says WaveTek

There is no vacuum in the pool. The air chambers are above the water level. And just push/pull the water up/down to make waves you can go right next to the grates in pool and be fine.

SAME HERE

Is damper

tabiās scot me too Mate.

+Alex Colderley Yes, so parents can keep an eye out for little kids ( which supposed to be at an arm lengths from the parent in this pool ) I have dragged out kids while parents are drinking a Latté in the coffee shop and forgotten about the little ones.