Know-How Effective Are Swamp Coolers?

Swamp Coolers
HVAC & Plumbing

What is a Swamp Cooler?

Swamp coolers are an alternative to air conditioning. They can significantly cool the air while using relatively little energy.

Although they can be extremely effective, their effectiveness is dependent on the local climate and the efficiency of the evaporative medium.

Swamp Cooler Effectiveness

Swamp coolers evaporate water into the atmosphere. The water evaporates into the air and takes energy from it, which cools off the temperature.

How hot the air is and how high the humidity is will determine the effectiveness of the process. Swamp coolers can be very effective in lowering the temperature of hot air by as much as 30 degrees when humidity is low, such as 20% relative humidity.

Hot means more than 90 degrees F. You will experience a lower temperature drop at lower temperatures and greater humidity.

A swamp cooler can drop from 125°F to 83°F at 2% relative humidity. But, at 80% humidity, it can only drop 75°F to 72°F.

These theoretical potentials are only estimates. Swamp coolers’ actual effectiveness depends on their evaporative media, as well as access to fresh air.

Evaporative Media and Swamp Cooler Effectiveness

The effectiveness of swamp coolers can be greatly affected by the design of evaporative media. You want an evaporative medium that can absorb a lot of water, and then put that water in contact with moving air.

Swamp coolers can achieve 95% efficiency with the best evaporative media. Evaporative media that are poorly designed might only achieve half the effectiveness.

Evaporative media can also degrade over time. Many evaporative media, such as aspen pads, degrade quite quickly. They lose effectiveness as they become less effective.

Evaporative media can lose its effectiveness over time if they get clogged with debris. As long as the media is intended to do so, it is a good idea to clean the inlet of evaporative media as often as possible.

Air Access is Critical to Evaporative Cooler Efficiency

Air conditioners rely on being able to recirculate and cool air step-by-step. Evaporative coolers on the other side need to have access to hot, fresh air in order to function. An evaporative cooler that only takes in cool air will have lower effectiveness because the air it draws in is cooler and humid.

An evaporative cooler must have hot air access in order to be effective. This can be done by placing it outside, next to an open window, or having an external vent.

Portacool Evaporative Coolers Maximize Effectiveness

Portacool is a high-performance evaporative cooler. Portacool uses Kuul Comfort evaporative media. Kuul Comfort evaporative materials are well-engineered and made from the finest materials. Portacool units can achieve the theoretical maximum potential of evaporative coolers. It is extremely durable and doesn’t lose its effectiveness quickly so you don’t need to replace it often. Kuul evaporative medium is specially designed to work with Portacool coolers. This ensures the best results.

Portacool evaporative coolers have powerful fans that can suck in large amounts of outside air to cool very large areas.

To ensure that all Portacool customers are satisfied with their evaporative coolers’ effectiveness, we offer best-in-class warranties as well as customer service.

We at Preferred Climate Solutions provide an array of portable cooling and heating rental solutions 24/7. We also offer swamp cooler rental. We have locations in Houston, Dallas/Ft Worth & Austin Texas. Though Houston is our home, we offer on-site delivery and set up anywhere in the state of Texas. Call us anytime and we are ready to help you.

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