Evaporative Cooling Duct Sizing

The next step to choosing an evaporative cooler is to find a correctly sized unit. The potential of evaporative cooling adiabatic cooling when 2 2 lbs 1kg of moisture is delivered to the air by an adiabatic humidifier 680w of evaporative cooling is achieved. Pmi evaporative cooling sizing calculator.

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Use the calculator below to determine the appropriate cooler sizing based on your needs.

Evaporative cooling duct sizing.

Duct sizing equal pressure method on the chart we start by drawing a line from 0 65 pa m all the way up and then draw a line across from our required volume flow rate in this case for section c we need 0 21m3 s. Like air conditioners evaporative coolers need to be the right size in order to adequately cool a room. The resulted will appear to the right. Evap cooling takes more air flow than heating so the ducts need to be sized for the cooling.

When it comes to choosing a portable air conditioner one of the most important factors to take into account is the model s btu rating. As a single adiabatic humidifier can provide up to 2 200 lbs hr 1 000 kg h of moisture from as little as 300w of electricity their potential for providing low cost adiabatic cooling in air handling units is great. A good installer retailer will also take into consideration your local humidity levels before giving you an accurate quote. Refine your configuration by adjusting static pressure desired indoor temperature air change method and ceiling height.

You could size the main trunk line by the volume of the ducts to registers or you could just maintain the cooler outlet size. Start by selecting the a geographic location the cooler will be used in and then cooler model. To select the size of an evaporative cooler you have to consider the airflow and the size of the area you have in mind to cool.