The theme of Yashilin Instruments' lecture hall today is: wind speed calculation of high and low temperature test chamber;
Wind speed refers to the rate of air movement relative to a fixed location on the earth. The common unit of wind speed is m / s, 1m / s = 3.6 km / h. There is no grade for wind speed, only wind has grade. Wind speed is the basis for dividing wind grade. Generally speaking, the higher the wind speed, the higher the wind level and the more destructive the wind.
Anyone who knows the high and low temperature test box knows that the circulation system of the test box uses high and low temperature resistant stainless steel multi-wing impellers to achieve forced convection vertical diffusion circulation, so that the temperature and humidity in the laboratory are uniform and stable. The test wind speed is also mentioned in some test standards. The wind speed of the high and low temperature box in the standard is calculated as follows:
V = (VA + VB + …… + VM) / n
In the formula: V——wind speed, m / s;
(VA, VB ..., VM)-wind speed at each measuring point, m / s;
n——the number of measuring points.
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