See our installation manuals and other useful technical data for the development of any mist system project
- Low Pressure System Installation Manual
- High Pressure System Installation Manual
- Misting Pipes and the maximum permissible flow rates for each.
- Calculating the Water Speed through pipes
What is misting?
Water misting and evaporation techniques have been around since ancient times in order to refresh the environment..
The process consists in dissolving the water in air, by extracting the latent heat; in other words the energy that is released by changing it from the liquid phase to a gaseous form (vaporizing heat).
In the best of cases, each gram of water vaporized at 100 C° provides us with 2257 watts per gram.
If a medium sized nozzle can vaporize 1.25 gram/sec, it will provide 2.821watts/sec, or 673 Kcal /sec or 673 Frigories (refrigeration capacity). We can even estimate an average performance of around 55%, given that through the theory of physics it establishes this principle in lab conditions at a water temperature of 100 C°, but our system can generate a large amount of frigories with a small requirement of water to produce them.
This is why it is a very highly demanded system for bar terraces, restaurant terraces, chalets, leisure areas, on fields, etc…
We mainly manage two mist systems that are very similar in their method but very different when it comes to effectivity. One uses “Low Pressure” water, up to 14 Bar, and the other uses 70 bar pumps, that we call “High Pressure”.
The main difference between water misting in either high or low pressure is the size of the droplet that you obtain through the misting process.
The higher the pressure, the smaller the droplet size and the quicker its dissolution in air. Consequently, you get a better extraction of ‘latent heat’ in the water.
High pressure always requires pumping equipment as the working pressure is 70 Bar. With this pressure, the water droplet achieves a minimum size which allows immediate dissolution of the water in the air, thus reaching maximum effectiveness. This is necessary for facilities in bars, restaurants, public places, farms, etc…
It’s highly efficient.
An excellent effectiveness / price relation in regards to installation.
Very low consumption in relation to performance.
It isn’t a well-known system.
Low pressure systems become effective starting at 3.5 Bar and performance improves as we increase the pressure.
If we use direct the pressure from the water supply network we are limited by that pressure, unless we install a small pressure pump, in which case we can get probably around 10 Bar.
Use of low pressure is only advisable in private outdoor zones, farms, etc…
Pros: very low cost
Cons: the system will always drip. You have to install it in an area where it doesn’t matter that the floor will get wet. The effectiveness is quite inferior to “High Pressure” systems.
This system in our opinion is more adequate for personal use or housekeeping, but never for commercial or professional use.