View Full Version : was thinking about this...
RacerXTT
10-22-2003, 01:33 AM
Gases are more dense when they are cold holding more molecules because they are closer together, right ? How come some gases such as nitrious yield better results when warmed ?
I was also thinking why they do not put a valve on ram air. A simple valve that would open more as you gain speed, this would also give you the option to close it on rainy days...I dunno just stuff that popped in my mind.
540Malibu
10-22-2003, 01:50 AM
the only thing th heat does is expand the gas in the bottle effectivley increasing pressure. Its still frozen coming out.
H3llphyre
10-22-2003, 01:55 AM
Originally posted by FatBlockMalibu
the only thing th heat does is expand the gas in the bottle effectivley increasing pressure. Its still frozen coming out.
Yes and no. At high pressure, the "gas" in a tank is actually a liquid. This is true for propane, NG, and nitrous. Warming it raises the pressure in the bottle, because the liquid starts to become a gas, hence taking up more space.
As for the ram air thing... There are kits out there that have flaps that close for rain. They had similiar things in the past on mopars. not sure about other makers. But, most people just put inserts in for when they don't want water/snow getting in.
bottledbird68
10-22-2003, 02:00 AM
Yup, old pontiacs actually had a pull cable under the dash to open and close the Ram Air flaps on some models. The cowl induction scoops on late 70's camaro's and early 80's bird's actually had a solenoid to open and close the flap depending on engine load :smokin:
540Malibu
10-22-2003, 02:11 AM
Originally posted by H3llphyre
Yes and no. At high pressure, the "gas" in a tank is actually a liquid. This is true for propane, NG, and nitrous. Warming it raises the pressure in the bottle, because the liquid starts to become a gas, hence taking up more space.
As for the ram air thing... There are kits out there that have flaps that close for rain. They had similiar things in the past on mopars. not sure about other makers. But, most people just put inserts in for when they don't want water/snow getting in.
nope, you not doing anything to any liquid that may be in the tank, you are expanding the gas, and since liquid cannot compress, you get a pressure rise.
H3llphyre
10-22-2003, 02:28 AM
Originally posted by FatBlockMalibu
nope, you not doing anything to any liquid that may be in the tank, you are expanding the gas, and since liquid cannot compress, you get a pressure rise.
heating the liquid makes it become gas... It also expands the gas that is already in there. remember the PV=NRT equation from chem? Temp has an effect on the liquid, as once it gains enough energy, it changes states.
540Malibu
10-22-2003, 02:36 AM
Nitrous oxide in liquid form is only a liquid because of the pressure exerted on itself, it has nothing to do with temperature. Thats like trying to say that H2O boils at 212 degrees, its just not true
540Malibu
10-22-2003, 02:38 AM
also, nitrous comes out of the bottle in a liquid state, if what your saying is true, then using a bottle heater would elimiante all the liquid because heating it makes it turn into a gas.
H3llphyre
10-22-2003, 02:47 AM
Originally posted by FatBlockMalibu
also, nitrous comes out of the bottle in a liquid state, if what your saying is true, then using a bottle heater would elimiante all the liquid because heating it makes it turn into a gas.
it would only turn all to gas if there was enough energy to convert it all to gas, at which point some element would give first. I am wrong, i thought nitrous came out of the bottom as a gas... my bad.
RacerXTT
10-22-2003, 04:17 PM
It depends on which you are using, wether it be gas or liquid though. But the fact remains when molecules are heated they expand and go into an excited stage. I was just wondering why gasous nitrious is better when warmed. I thought colder would be better cuz it would be more dense holding a lot more as they are packed tighter together.
H3llphyre
10-22-2003, 04:21 PM
Originally posted by RacerXTT
It depends on which you are using, wether it be gas or liquid though. But the fact remains when molecules are heated they expand and go into an excited stage. I was just wondering why gasous nitrious is better when warmed. I thought colder would be better cuz it would be more dense holding a lot more as they are packed tighter together.
higher pressure maybe?
Feral
10-22-2003, 04:34 PM
Originally posted by H3llphyre
higher pressure maybe? Bingo ... it's all about pressure.
540Malibu
10-22-2003, 06:37 PM
Originally posted by RacerXTT
It depends on which you are using, wether it be gas or liquid though. But the fact remains when molecules are heated they expand and go into an excited stage. I was just wondering why gasous nitrious is better when warmed. I thought colder would be better cuz it would be more dense holding a lot more as they are packed tighter together.
lets try this again, nitrous oxide is a liquid when it comes out of the 10 lbs bottle, if its a gas, there is not enough to use more than purge.
when you heat the bottle (not full, no need to heat a full bottle) the gas in the "top" of the bottle expands, increasing the pressure, the increase in pressure, turns more of the gas into a liquid, making it more useable, because nitrous liquifies under pressure.
Igetlaidalot
10-22-2003, 06:46 PM
exactly, heating a bottle just raises the pressure in it, making a half empty bottle function as a "full" bottle.
and you can heat the bottle up enough so that when you purge it you freeze telephone poles 20 ft up
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