Thermodynamics and SPL

[Aaron Clinton 2,372]

would someone like to try to explain the effects that I am starting to notice with the serious increase in humidity and temperature?

I have a faint Idea, but I was curious to hear from more experienced SPL'ers

[02BlackOnBlackSS 1]

Well, the Finn's use humidifiers in their spl cars. Thats all I know. I couldn't explain the effects of it on spl.

[Nikuk 1]

See if You can get Nick in here. NDMStang... he's the current acoustic's nut ...and smart.

Otherwise... If You search around the dBDrag site, You'll see a few competitors using BIG ac / condensor / humidifier type units... Cold air is denser, therefore will be 'heavier' when compressed by the pistonic motions and waves. at least thats the theory as i remember it.

That doesnt answer much for You, I'm sorry, but the root's technical side of this is outta my league & experience.

Are You see gains or losses?

[UndercoverPunk 0]

Anybody need a HVAC guy? LOL

[Aaron Clinton 2,372]

I am currently seeing some serious booming gains in my truck, it has been a long time since I have had to back my line driver down

[djjdnap 78]

heat would essentially make the rise go up right.

Moisture would make it also go up because that moisture is being heated like a catalyst.

Thats with heat though..

Thats my thoughts, havn't even taken the class yet, heard its hard as hell.

[NDMstang65 403]

Go outside on a night where it's 3 degrees and yell...

Go outside in Miami in the dead heat of July and yell...

Tell me what you find out

[djjdnap 78]

hmm, well sound travels more at night.

Because it is colder or something like that i kinda remember it from physics.

Something about camping and at night hearing people whisper across the lake, lol. good times

[Supa_c 1]

Go outside on a night where it's 3 degrees and yell...

Go outside in Miami in the dead heat of July and yell...

Tell me what you find out

<{POST_SNAPBACK}>

I just made a fool of myself ?

[ANeonRider 3]

sound travels faster/easier through a colder medium.

[Supa_c 1]

Well no wonder there are no SPL competition in cali.

So much heat

[djjdnap 78]

So your saying if i have the air conditioner on while at a comp it will be louder?

And can i put some vents into the trunk to make it icy cold in there as well and see results...

[Nikuk 1]

the problem with running the car's AC system is that it draws amperage away from Your battery....

External AC is better.

Dry Ice is tits.

[djjdnap 78]

people would think the trunk was on fire from dry ice, lol, all of the fog it would cause.

[UndercoverPunk 0]

How about Liquid nitrogen???

fun stuff!!!

[Nikuk 1]

How about Liquid nitrogen???

fun stuff!!!

<{POST_SNAPBACK}>

try it... lemme know how it works out for You.

[CBFryman 2]

Meh,

simple logic, Colder=More dense, the more dense it is the closer the molicles are. Remember that sound is a compresion wave, so one molucule has to bump into the next causing a rise then drop in pressure following the wave pattern. because the molicules are closer togather they more efficently the transfer of energy is.

think of it like that cradle thing (i forget the name) with the 5 balls. the balls are molicules, idealy they would be touching, but that is near imposible iwth a gas, so lets move thoes balls arpat, the closer they are to each otehr the more efficently they will transfer the mechanical energy form the swinging balls.

Humidity also raises the density of air, so it will have the same effect, to raise the density of air a whole lot you have to cool it quite a bit, so loading the air to 100% humidity is the easier way to get maximum density.

hope that helped

Just and FYI

if you want to try using a compresed gas to cool the air, look at the molar mass of each gas, the safest with highest molar mass will be best beause it will be most dense since 1mol of any gas is 22.1@STP (if memory serves) (STP=274? kelvin which is 0 celcius and 1atm, 101.27kPa, etc...) so the gas with the greatest molar mass will be most dense because it will have the greater mass per volume.

[ngsm13 1]

Meh,

simple logic, Colder=More dense, the more dense it is the closer the molicles are. Remember that sound is a compresion wave, so one molucule has to bump into the next causing a rise then drop in pressure following the wave pattern. because the molicules are closer togather they more efficently the transfer of energy is.

think of it like that cradle thing (i forget the name) with the 5 balls. the balls are molicules, idealy they would be touching, but that is near imposible iwth a gas, so lets move thoes balls arpat, the closer they are to each otehr the more efficently they will transfer the mechanical energy form the swinging balls.

Humidity also raises the density of air, so it will have the same effect, to raise the density of air a whole lot you have to cool it quite a bit, so loading the air to 100% humidity is the easier way to get maximum density.

hope that helped

Just and FYI

if you want to try using a compresed gas to cool the air, look at the molar mass of each gas, the safest with highest molar mass will be best beause it will be most dense since 1mol of any gas is 22.1@STP (if memory serves) (STP=274? kelvin which is 0 celcius and 1atm, 101.27kPa, etc...) so the gas with the greatest molar mass will be most dense because it will have the greater mass per volume.

<{POST_SNAPBACK}>

Nobody cares about you simpleton highschool chemistry stuff...

Oh...and it's 22.4

NG

[CBFryman 2]

noah is teh gay...like that is common knowldge...at least i pay attention...but i am no GD scolar like some...

::points and smirks::

no more chem for me for a year...then i gotta do AP hard stuff

[CBFryman 2]

oh but did i remeber the correct kelvin for STP, i dont feel like looking it up even though it would take like 5 sec on google...im going to bed ::yawn::

[ngsm13 1]

oh but did i remeber the correct kelvin for STP, i dont feel like looking it up even though it would take like 5 sec on google...im going to bed ::yawn::

<{POST_SNAPBACK}>

Nope, you messed up that as well...it's 273

NG

[UndercoverPunk 0]

And the Official 2005 nerd-off has begun!

[CBFryman 2]

well see who is saying that when noah and i are making mucho denaro and you are pulling a whopping 30grand a year being a MacDonalds Manager....

Since, we actually care about education (well me only sort of)

[Aaron Clinton 2,372]

And the Official 2005 nerd-off has begun!

[UndercoverPunk 0]

Jesus... can't casually pick on anybody around here?

I wasn't informed that this was SIN.