Large hoses or ducts are used to deliver the fog to the stage. Dry ice fog creates a magical environment - not unlike the fog over a body of water on a crisp cool morning - as it swirls around the performers feet, swirling and shifting dramatically in reaction to movement on the stage. Today, most fluid-based fog machines work by rapidly heating a mixture of water and glycol, producing a vapor. The expanding vapor is forced out of a nozzle where the warm, moist vapor mixes with the cooler air to form fog.
Fluid-based machines are manufactured by a number of companies including Rosco, Ultratec, and High End. While there are a number of innovations and minor variations, for the most part they are similar in that they consist of a fluid reservoir and a pump for moving the fluid to the heat exchanger and a nozzle through which the vapor leaves the machine.
Mobile Newsletter banner close. Mobile Newsletter chat close. Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Mobile Newsletter chat subscribe. How do fog machines work? In other cases, water vapor machines act by condensing water vapor out of the air, such as may be seen when a freezer door is opened. Many commercial smoke machines use water vapor in some fashion. Actively scan device characteristics for identification.
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List of Partners vendors. Share Flipboard Email. The machine is made up of a pump, a tank, and a heat exchanger , which is an enclosed area with an input hole and a small output nozzle. The mixture turns into steam and is forced out of the nozzle on the front of the fog machine. When the steam makes contact with the relatively cool air outside, it condenses somewhat and turns into fog.
This fog is still hotter than the outside air, so it rises up towards the ceiling, creating billowing clouds.
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