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An evaporative cooler (also known as evaporative air conditioner, swamp cooler, swamp box, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression or absorption refrigeration cycles.
A pot-in-pot refrigerator, clay pot cooler [1] or zeer (Arabic: زير) is an evaporative cooling refrigeration device which does not use electricity. It uses a porous outer clay pot (lined with wet sand) containing an inner pot (which can be glazed to prevent penetration by the liquid) within which the food is placed.
The Pandur II has an all-welded steel body with optional armour upgrades. The basic armour package is designed to protect against 7.62 to 14.5 mm (0.300 to 0.571 in) armour-piercing rounds (customers may choose the armour thickness). The vehicle is designed to be transportable in a Lockheed Martin C-130 Hercules transport aircraft. The driver ...
Desert Steel’s Pumpkin Luminary Set is the chicest fall decor on the market. Shop the stylish addition at Costco and Amazon. Costco Is Selling the Chicest Halloween Pumpkins You Can Find
Water is inexpensive, non-toxic, and available over most of the earth's surface.Liquid cooling offers higher thermal conductivity than air cooling. Water has unusually high specific heat capacity among commonly available liquids at room temperature and atmospheric pressure allowing efficient heat transfer over distance with low rates of mass transfer.
On a hot afternoon in a desert climate, it is possible to cool by as much as 40 °F (22.2 °C), while in a humid climate hot-afternoon cooling potential can be just 10 °F (5.6 °C) or less. Nevertheless, there are many successful inlet-fogging installations in humid climates such as Thailand, Malaysia and the American Gulf States. [12]
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The most common radiative coolers found on buildings are white cool-roof paint coatings, which have solar reflectances of up to 0.94, and thermal emittances of up to 0.96. [27] The solar reflectance of the paints arises from optical scattering by the dielectric pigments embedded in the polymer paint resin, while the thermal emittance arises ...