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A unit of power. It is defined as one joule per second. It is calculated by multiplying the amperage (A) by voltage (V).
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Watts (W) - A unit of power. It is defined as one joule per second. It is calculated by multiplying the amperage (A) by voltage (V).
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Waterside Economizer - An economizer that redirects water flow to an external heat exchanger when the exterior ambient air temperature is at or below a temperature required to chill water to a given set point, simultaneously shutting down the mechanical chiller equipment.
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Wet-Bulb Temperature - The temperature of the air measured using a wet-bulb thermometer, typically taken in conjunction with a dry-bulb reading in order to determine relative humidity.
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Work Cell - The area of a rack and the related area immediately in front of and behind the rack. Standard racks are 2 feet wide and 4 feet deep. Standard aisles are 4 feet wide, so half of that space is workspace for a given rack. This results in a standard work cell of 16 square feet. Actual work cell size varies with data center design.
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Watts Per Square Foot (WPSF) - A measure of the power density of a data center. As the power consumption of data center equipment has increased so has the WPSF.
