H1 was the Environment Agencies software tool to calculate the stack height for satisfactory dispersion of the substances handled. NOTE – H1 (D1) was WITHDRAWN in 2016 and is not the the Environment Agency’s current guidance. However, it is still …
These handy devices/programs allow you to calculate Areas, Velocities, Flowrates, Pressure Losses and a load more design criteria either using a simple hand held circular slide rule type device …. or more recently apps for your Android or Apple device. I have …
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