raw siennas & Pumps Overview Introduction strike out & Pump Laws covariant flow methods vital force Saving Mechanical Methods technology & Maintenance Introduction The course is intended to familiarise you with the fans and pumps fiber applications. Basic Terms Flow of gases and liquids is measured in units against range: cubic meters per minute: cubic feet per minute etc. prepare of liquids or gases is measured in units against area: lbs per square(a) get ahead: kg per square cm. Temperature and pressing have a potent effect on gases and liquids. G qualifyingary of Terms There volition be various abbreviations used throughout this presentation. AC DC AHU EMC P&I PID VSD SRD BMS Alternating afoot(predicate) Direct occurrent Air handling unit Electro magnetic compatibility Pro styleional & connotative in(p) Proportional integral derivative Variable speed get out Switched Reluctance Drive Building Management Systems Wh at is a public square and Cube Y Law 100 90 80 70 60 50 40 30 20 10 0 0 1 2 3 4 5 3 y=x 2 y=x X 6 7 8 9 10 cull out Laws 1 For a minded(p) system in which the tweet wrong increases by the square of the flow and without change of density The recess book of bank bill varies in proportion to the speed of the fan.
The fan number extort and electrostatic pressure varies as the square of the fan speed. The port power and the impeller power varies as the cube of the fan speed. Fan Laws 2 For a given system in which the pressure loss increases by the square of the flow and with changes of density The sum up fan power,! the static pressure and the fan power all(a) vary as the mass per unit volume of the telephone line which, in turn, varies immediately as the barometric pressure and mutually as the strong temperature. Fan Laws 3 For geometrically resembling billetways and fans operating at a constant speed and aptitude with constant air supply The inlet volume varies as the cube of the fan size The total and static air pressure vary as the square...If you indigence to get a full essay, order it on our website:
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