practical industrial flow measurement for engineers and technicians
DESCRIPTION
Practical industrial flow measurement is suitable for the engineer, electrician, technician, craftsperson, operator and others who require practical, specialist knowledge for selecting and implementing flow measurement systems. This workshop is ideal for cross-skill training. The workshop focuses on typical real-world applications. Close attention is given to special installation considerations and application limitations when selecting and installing different flow instruments. WHO SHOULD ATTEND? Those in the design, implementation and upgrading of industrial control systems and: Automation engineers Building service designers Control technicians Data systems planners and managers Electrical and instrumentation technicians Electrical engineers Electricians Energy management consultants Instrumentation and control engineers Maintenance engineers Power system protection and control engineers Process engineers MORE INFORMATION: http://www.idc-online.com/content/practical-industrial-flow-measurement-engineers-and-technicians-7TRANSCRIPT
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Practical Industrial Flow Measurement for Engineers
and Technicians
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Industries involved in flow measurement and control include: food and beverage;medical;mining and metallurgical; oil and gas transport; petrochemical;pneumatic and hydraulic transport of solids;power generation; pulp and paper; andwater distribution.
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Stationary plate
Moving plate
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Shear
Shear stress Shear rate
or:
Shear stress = µ. Shear rate
where:
µ = dynamic viscosity ( Pa.s)
Formerly = poise
where:
1 Pa.s = 10 poise
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Comparison of the viscosities of various fluids.
Fluid Temperature(C)
Viscosity (Pa.s)
Molasses 20 100Glycerine 20 1,5Engine oil (SAE 10) 30 0,2Milk 20 5 x 10 -3
Blood 37 4 x 10 -3
Water 0 1,8 x 10 -3
Ethyl alcohol 20 1,2 x 10 -3
Water 20 1 x 10 -3
Water 100 0,3 x 10 -3
Air 20 0.018 x 10 -3
Water vapour 100 0,013 x 10 -3
Hydrogen 0 0,009 x 10 -3
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Shear rate
Shearstress
Yield point
Newton
ian
Idea
l plas
tic
Pseudoplastic
Dilatan
t
Non-Newtonian fluids
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Ideal profile
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Laminar profile
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Turbulent profile
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Re = r.v.D/ µ
where:
r = density (kg/m3)
µ = viscosity (Pa.s)
v = mean flow velocity (m/s)
D = diameter of pipe (m)
Laminar Re < 2000
Transitional Re 2000 - 4000
Turbulent Re > 4000
Reynolds number
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Swirl
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Definitions Volumetric flow rate Velocity Point velocity
Mean flow velocity Volumetric flow rate Mass flow rate Rangeability
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