Quote:
Originally posted by unregistered
sorry Ivo, I don't understand the question
the flow rate was measured with a Danfoss MAG 5000 flowmeter with MAG 1100 ¼in. magnetic flowtube (±1/2% of reading accuracy)
- magnetic flow meters read the velocity which must be within a certain range, had I wished to measure higher flow rates I would have used a larger flow tube (which I have up to 2" ID, and positive displacement pumps to match)
pressure drop with a Foxboro 823DP differential pressure transmitter and Digitek digital gauge (~±1 to 2% accuracy)
the pressure drop is accurate over the flow rates shown, and as Cathar has pointed out will increase exponentially beyond the flow rates tested
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varying the diameter of the column to be supported if it varies the pressure to be submitted to reach the same level
a bomb pushing a column with diameter of 1\2 inch reaches a height
the same bomb pushing a column with diameter of 3\4 of inch reaches another height
the commercial bombs are hour measured with a column in your exit diameter, hour measured with a diameter considered pattern by the manufacturer, or just for the generated psi.
I wanted something simple, I wanted to know when you speak in 3mh2o, that pressure you apply to the fluid to simulate that, I can like this in a rustic way to compare with the supported maximum columns published by the manufacturers of the bombs with yours, since they don't have a defined pattern
did you understand my considerations?