Confirmation of manometer outcome
I am looking to get a ball park estimate of the cfm of a range hood exhaust in a restaurant. I saw that to do a bathroom exhaust fan you create use a flow hood with a certain size hole. Instead I am going to use the building as the "flow hood." I am going to measure the pressure differential between the outside and inside with no fan running. Then I am going to turn the fan on and measure the pressure difference. If I subtract those two outcome it will give me Pa. of the exhaust hood. Then, based off of a trusty YouTube video, the formula to convert the Pa. to CFM is 1.06 x sqinhole x squareroot of deltaPa will give me flow in CFM. I am trying to find this without having to set up a blower door. Any thoughts would be appreciated.
Posted Thu, 09/26/2013 - 15:16
Other Questions in General questions