Pre-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
Pre-cooling for HVAC explainedPre Cooling Study – COLDMISTPre 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
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Industrial Low Volume Water Evaporation +
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Rotational mould cooling +
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Concrete Curing +
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People Cooling at Festivals +
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Evaporative spot cooling in factories +
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