The calculation formula of wind speed and air volume is: air volume = wind speed * cross-sectional area. Take a diameter of 6 mm and wind speed of 12 meters per second as an example, and air volume =12*36*3.14*.6*.6/4.
1. air volume (q): the so-called air volume (also known as volume flow rate) refers to the velocity of airflow passing through the cross-sectional area of the air duct, which is generally expressed by the following formula:
Q=6VAQ (air volume) = ＝m3/min V (wind speed) = m/sec a (cross-sectional area) = m2.
2. How to convert wind speed and air volume?
conversion formula of wind speed and air volume: l = 36 * f * v.
in the formula, the ventilation area of F tuyere is m2.
V measured average wind speed at the tuyere (m/s).
calculate the air volume, wind speed and pipe diameter at the outlet of the exhaust fan: pipe diameter d (m); Wind speed u (m/s); Air volume q (m3/h); S cross-sectional area (m). L pipeline length (m) d = √ {4q/(3.14U36)} u = q * 4/{(d/2) 2 * 3.14 * 36}.
symbol:
The total volume of air sent or sucked by the fan of air-cooled radiator per minute, if calculated by cubic feet, is CFM；; If calculated by cubic meter, it is CMM, and the air volume unit often used in radiator products is CFM.
under the condition of the same radiator material, the air volume is the most important index to measure the heat dissipation capacity of air-cooled radiator. Obviously, the larger the air volume, the higher the heat dissipation capacity of the radiator. This is because the heat capacity of air is fixed, and the greater the air volume, that is, more air can take away more heat per unit time. Of course, the heat dissipation effect is related to the wind flow mode under the same air volume.