answers
Aims of Industrial Plants Ans✓✓✓ - produce standard & high-quality
products
- market products & profit
- can be achieved through successful designs and control processes
air to close (fo) Ans✓✓✓ no flow, increased pressure closes
air to open (fc) Ans✓✓✓ full flow, increased pressure opens
Automation Ans✓✓✓ the use of largely automatic equipment without
much significant human intervention in a system of manufacturing or
other production process.
Ball Valve Ans✓✓✓ quick opening, linear
Batch process Ans✓✓✓ A type of process used to produce a small
quantity of products in groups or batches based on customer orders or
specifications.
Butterfly valve Ans✓✓✓ linear & equal percentage
Capitance Ans✓✓✓ the ability of a system to store energy/mass
, Cascade Control Ans✓✓✓ Combination of Feedforward Control and
Feedback Control
Cavitation Ans✓✓✓ Pressure recovers above vapor pressure of liquid
(break it away)
Choked flow occurs when Ans✓✓✓ An increase in pressure drop
across the valve no longer creates an increase in flow
Closed Control Loop Ans✓✓✓ Feedback control loop that measures
actual changes in the
controlled variable and manipulates the controlled device to bring about
change.
continous process Ans✓✓✓ a process that is highly automated and has
a continuous production flow
Control Ans✓✓✓ Set of technologies achieving desired patterns of
operational parameters by providing necessary input signals
Control Valve Ans✓✓✓ - valve connected to an actuator mechanism
capable of changing position of closure member in valve in response to a
signal
- considered most important FCE