To compare wind speed versus PSI, start with their formal definitions. Wind speed measures how fast the wind is moving in a particular location. Pounds per square inch measures how much pressure a gas or liquid exerts on its container, based on the amount of force applied to 1 square inch of area.
Two naturally occurring factors create wind speed: the Coriolis effect and friction. The Coriolis effect are winds that steer other winds away from their naturally occurring path, creating an increase or decrease in wind speeds for certain areas. Friction from irregularities on the Earth's surface, such as mountains, also slow winds. PSI is generated artificially when air, liquid or a combination of the two is forced inside a power washer, air gun or a similar tool. In some cases, the mixture is released in a controlled manner to take advantage of the concentrated power.
Wind turbines rely on steady, constant wind speeds to create electricity. The aviation industry monitors winds speeds to ensure pilots have a safe flight. Scientists record wind speeds as an environmental variable during experiments. The slightest changes can affect test results. Tools for mechanics, carpenters and amateur craftsman use PSI. High-pressure tools remove paint, rust and encrusted dirt from surface areas. PSI is also important for tire inflation. Any deviation from manufacturing standards impact tire performance.
PSI measurements, based on the pascal unit of pressure, are similar for the United States and the United Kingdom. Wind speeds taken in the U.S. are converted into kilometers for use in the U.K. Nozzles must be replaced regularly on PSI-producing units to keep pressure levels consistent.