precooloing-setupPre-Cooling of HVAC & Refrigeration Units through Evaporative Fogging

Why PreCooling is an especially important technology

•    Refrigeration and air conditioning account for up to 70% of a typical commercial building’s energy usage.  Hospitals, fresh produce suppliers and restaurants will have an even greater energy consumption.    

•    HVAC systems and refrigeration units not only run longer under high ambient temperatures - they also draw more power whilst operating.
•    The only method to reduce energy usage is to make the HVAC systems run more efficiently by means of a pre-cooling system


Pre-Cooling systems include:

Coldmist nozzle-based misting systems – specifically designed around the HVAC units - installed and commissioned according to individual project requirements.

BENEFITS OF THE PRO-Series ROTARY ATOMIZER – no clogging of nozzles, no high pressure pump OR water filters required - minimal maintenance!

How Pre-Cooling works

• A  customized  evaporative fogging system is attached to each air conditioning unit which lowers the temperature of the air entering the condenser. This allows  the  condenser  to reject more heat  which lowers head pressures and compression ratios, thereby causing the compressor to draw less power, consume less energy, require less maintenance and last longer!

• The pre-cooling application performs best at the exact time when commercial buildings require increased refrigeration system performance – that is , during  peak heat. In fact, the higher  the ambient temperature, the greater the energy and cost savings potential.

Benefits of pre-cooling air conditioner condenser coils

  • Reduced energy costs
  • Reduced air conditioner maintenance costs
  • Increased peak cooling capacity
  • Reduced energy (kWh) usage
  • Reduced peak energy demand (kW)

Download Brochures

pdfPre-cooling for HVAC explained
pdfPre Cooling Study – COLDMIST
pdfPre Cooling Condensers – Energy Saving

Coldmist Cooling is designed to operate where conventional air conditioning is not practical, possible or simply too expensive. As a derivative of the climate control systems used in livestock cooling applications such as - chicken hatcheries, piggeries and dairies - the design incorporates the injection of water pressurized to 1000 psi through specially designed and patented misting nozzles. The resultant finely atomized 5 micron water droplets, when introduced into the surrounding air  - effectively flash evaporate and reduce the ambient temperature by 10- 12° C.

PRE-COOLING applications :
Coldmist nozzle-based misting system – is customized around the HVAC unit and installed and commissioned according to the demands of individual projects. Water filters and a high pressure pump/controller are integral to this system which will significantly reduce energy usage.

The ColdMist PRO-Series Water Atomizers produce a high-volume, ultrafine mist and being nozzle-free will not clog. Spray droplets of varying micron sizes – from 20 µ to 150 µ – can be achieved. These systems are extremely easy to install and operate and provide evaporative solutions  for a diverse range of industrial applications.

Industry Applications

  • Industrial Low Volume Water Evaporation +

    How low do you go? Low volume spraying - from a few cc's per minute and more - can be problematic, especially Read More
  • Rotational mould cooling +

    Rotational mould cooling The Aquafog atomizer's powerful combination of airflow and fog rapidly cools rotational moulds. Hang one or more fogging fans close Read More
  • Concrete Curing +

    Concrete Curing Virtually any concrete application where fog can be 'contained' around the product will benefit from the use of the powerful Read More
  • People Cooling at Festivals +

    People Cooling at Festivals The mobile and enormously powerful Aquafog HRSM water atomizer targets cooling applications on construction and mine sites , industrial and factory cooling Read More
  • Evaporative spot cooling in factories +

    Industrial and Commercial Cooling and the impact of temperature on productivity Scientific studies confirm that the temperature in closed environments Read More
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