Definition

Noun: A device or system that lowers air temperature by using the natural process of water evaporation. It works by drawing warm, dry air through water-saturated pads, causing the water to evaporate and absorb heat from the air, thereby cooling it.

Usage

An evaporative cooler is used for climate control, typically in hot, dry climates. It is an alternative to a standard refrigerant-based air conditioner.

Examples

• The evaporative cooler on the roof made the warehouse much more comfortable during the summer heatwave.
• Because they require less energy, many homes in arid regions use an evaporative cooler instead of traditional air conditioning.
• The efficiency of an evaporative cooler depends on the relative humidity of the outside air.

Advanced Usage

• Technical Context: In engineering, the term describes the principle of adiabatic cooling, where the sensible heat of the air is converted to latent heat through evaporation.
• Industrial Application: Large-scale evaporative coolers are used in data centers and industrial facilities for cost-effective cooling.

Variants and Related Words

• Swamp cooler (n): A common colloquial term for an evaporative cooler, especially a residential unit.
• Evaporative cooling (n): The physical process itself, which can occur naturally or be engineered.
• Air cooler (n): A broader term that can sometimes refer to an evaporative cooler, but may also refer to fans or other devices.

Synonyms

• Swamp cooler
• Desert cooler

Key Distinction

An evaporative cooler adds moisture to the air while cooling it, whereas a standard air conditioner removes moisture from the air.

Noun

1. a cooling system that cools by evaporation