AC Motor Braking
There are several different methods useful for causing an AC induction motor to brake, or slow down: DC injection Dynamic braking Regenerative braking Plugging DC injection uses the technique of…
Basics of Orifice Plates
Orifice plates are typically sandwiched between two flanges of a pipe joint, allowing for easy installation for fluid to flow through the pipe.
Square-root characteristics of Differential Pressure Flow Meters
Differential pressure developed by a venturi, orifice plate, pitot tube, or any other flow element is proportional to the square-root of flow rate.
Mass Flow Calculations
Measurements of mass flow are preferred over measurements of volumetric flow in process applications where mass balance is important.
Volumetric Flow Calculations
Volumetric Flow Calculations use differential pressure produced by any flow element tube with any particular fluid density at a specified flow rate.
Hydraulic Systems Objective Questions
Hydraulic Systems Objective Questions 1. Heavy lifting work is often accomplished by shifting fluids in big machines. The power system of such machines can be described as a) Reciprocating b)…
SIS – Safety Instrumented System Example
A Safety instrumented system (SIS) consists of an engineered set of hardware and software controls which are especially used on critical process systems. SIS - Safety Instrumented System Example Examples…
Use of line reactors
Regulating the electric power sent to an electric motor is a task performed by high-speed switching transistors inside a motor drive, modulating the pulse-width of a high-frequency square wave to…
Procedure for Crimping the Connector
Procedure for crimping the connector: For tubing we used double compression type fitting. Following are the procedure for the tubing: First select the proper size tube (Like as 6 mm,…
Process Pressure Measurement Objective Questions
Process Pressure Measurement Objective Questions 1. An ordinary commercial Bourdon gauge has a scale of 0 psi to 250 psi, and an accuracy of ±1 percent of span. If the…
