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Posted By: GotanewlifeJust being logical, I assumed that if I convert the max extract to l/s (161 m^3/h = 44.7 l/s) and then multiplied it by 3.2 I would get 146W but it is 134W - OK 10% out is not much but it worries me.161'000/3600 * 3.2 = 143.111…, not 134. Much closer to 146. Did you swap the digits?
Posted By: Ed DaviesDid you swap the digits?Thanks Ed. can't reproduce error, it is late and I have spend 12 hours today on trying to solve my ventilation problems. Still it is nice to know I can use a fans max FID figure with the Wattage to get SFP and hence compare units.
Posted By: barneySFP is a unit of measure across the operating range of the fan
Posted By: barneyComparing max SFP from unit to unit is pointless.
Posted By: barneyie Specific fan power is measured in watts per litre per second - if you assume seconds to be constant then it's watts per litreMore like joules per litre.
Posted By: Ed DaviesAn easy mistake to makePosted By: barneyie Specific fan power is measured in watts per litre per second - if you assume seconds to be constant then it's watts per litreMore like joules per litre.
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