Dry Ice
Thu, 26 May 2005, 02:30 pmBill Macpherson7 posts in thread
Dry Ice
Thu, 26 May 2005, 02:30 pmAnyone have any experience with using Dry Ice or the like on stage ?
Any idea if it affects people with Asthma or any other things to watch out for ?
cheers
Russell Chandler
Busselton rep.
Any idea if it affects people with Asthma or any other things to watch out for ?
cheers
Russell Chandler
Busselton rep.
Re: Dry Ice
Fri, 24 June 2005, 08:31 amI will heartily endorse David's comments.
As an orchestra I have had to endure dry ice 'flooding' the orchestra pit in mid winter!
The temperature in the pit drops 5-10 deg in minutes and tuning of instruments just goes crazy. I never had a problem in breathing although others claim they did (I'm sceptical).
Dry ice (Frozen gas in water) is good for one scene at the most if you want mist on the floor of the stage.
For a longer lasting effect use a fogger which is a different animal.
For a bit of both (a general mist that hangs in the air) use a smoke machine which is a different animal again for an effect that will last a short while.
D.
David Ashton wrote:
>
> Contrary to the common perception the fog produced with a dry
> ice machine is simply water vapour.The dry ice is simply a
> very cold medium to cool the water vapour[steam] and cause it
> to lay on the floor.It is very inconsistent, as it depends on
> the humidity of the venue as well as the temperature.It can
> only be used in short bursts as the water cools down in the
> machine and it ceases to function.In short avoid it like the
> plague unless you have time to experiment with it and never
> ever use it over an orchestra as the water vapour will stuff
> up the instruments and the musos will kill you.
As an orchestra I have had to endure dry ice 'flooding' the orchestra pit in mid winter!
The temperature in the pit drops 5-10 deg in minutes and tuning of instruments just goes crazy. I never had a problem in breathing although others claim they did (I'm sceptical).
Dry ice (Frozen gas in water) is good for one scene at the most if you want mist on the floor of the stage.
For a longer lasting effect use a fogger which is a different animal.
For a bit of both (a general mist that hangs in the air) use a smoke machine which is a different animal again for an effect that will last a short while.
D.
David Ashton wrote:
>
> Contrary to the common perception the fog produced with a dry
> ice machine is simply water vapour.The dry ice is simply a
> very cold medium to cool the water vapour[steam] and cause it
> to lay on the floor.It is very inconsistent, as it depends on
> the humidity of the venue as well as the temperature.It can
> only be used in short bursts as the water cools down in the
> machine and it ceases to function.In short avoid it like the
> plague unless you have time to experiment with it and never
> ever use it over an orchestra as the water vapour will stuff
> up the instruments and the musos will kill you.