Regarding the issues with the exhaust fan, I only know about the negative pressure at the fan’s inlet, the temperature, and the diameter of the inlet pipe. How can I determine the flow rate?
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There is currently an exhaust fan available; its inlet negative pressure, inlet diameter, inlet medium, and temperature are known. . . How do I calculate its air intake volume? ? ? ? It would be better to explain the principle. Import negative pressure: -1500 Pa, inlet diameter: Φ1200 mm, inlet medium: air, temperature: 200 degrees. Does temperature have a big impact? What if the temperature is 190 degrees? Does it make a difference if the imported medium is different? Where can I find learning materials on this topic? More in detail. (I just arrived; there are many things I can’t see yet. I hope there are things that I will be able to see,, hehe)
The flow velocity can be estimated based on wind pressure; once the pipe diameter is known, it’s simple to calculate the flow rate. Alternatively, design manuals can be consulted, as they indicate the relationship between wind pressure and flow velocity. With the pipe diameter, the operating flow rate can then be determined (if a standard flow rate is required, it can be calculated using the formula P1V1/T1=P0V0/T0 to convert it to the value under standard conditions)
Based on the flow velocity of a fluid at a certain pressure, this value can be found in chemical process manuals; thereafter, the flow rate can be calculated using the pipe diameter and flow velocity (fluid calculations in chemical engineering principles)
Measure wind speed. ----- Determine air volume
Look up information on your own first, do more searches; forums have such materials and software available. It’s a common issue – don’t refrain from looking things up by yourself; if you don’t know something, ask others instead; it’s not good