Two Stage Evaporative Coolers Take the "Swamp" From Swamp Cooler

2 stage evaporative coolers are essentially new addition to the family of alternate cooling appliances. The benefit two stage coolers have over conventional, single stage designs is the production of air that is cool with 10%-30 % much less humidity (depending on the climate) of yours.

The steps of a 2 point cooler are referred to as "indirect" for the earliest place, and "direct" for the second stage.

A conventional swamp cooler, by the nature of its, gives additional moisture to the air it cools. To address this, a pre cooling, or perhaps indirect stage, was added.

In the indirect stage, hot, air which is dry is pre-cooled by passing by way of a heat exchanger cooled by evaporation on the outdoors. As the air source to the second stage evaporator is pre cooled, the end result is cool air with 50%-70 % relative humidity as opposed to 80 % humidity from a conventional single stage cooler.

An additional advantage of first stage pre-cooling and reduced moisture is extending - http://www.wordreference.com/definition/extending the product's usefulness into hotter and much more humid conditions.

2 stage evaporative coolers are usually fitted directly into an exterior structure or chillwell portable ac casement window - mouse click the next document - https://www.courierherald.com/national-marketplace/chillwell-portable-ac... , at ground level supported by a small concrete pad. The devices need a 115 VAC electrical connection, a supply water connection as well as, in case they have a water bleed off mechanism to reduce mineral deposits, a method for water disposal.

The largest units get a cooling capability of three tons, a source air flow of 1,400+ cubic feet a minute and consume around three gallons of water every hour. This is sufficient cooling capacity for up to 1,700 square feet of living space.

Since a 2 phase evaporative cooler brings outside air into the house in a relatively high rate and does not recycle indoor air, positive air pressure builds up within the home. In order for the system to work effectively, the pressure should be relieved by opening a handful of windows a few of inches, or installing an exhaust duct or maybe stress operated damper in the attic or even an outside wall.