Answer Posted / murthy
PID- proportional integral and derivative
there different types of controlling techniques,
combinations of these parameters in designing controllers.
it depends on what type of errror occurs in ur
system,deviation from ur set point,time u want ur
controller to take action.
if u want quick acting one then go for only proportional
controller,the disadvantage is you get higher deviation.
if u want to minimze error (measured-set value) go for
integrated controller,disadvantage-your final forms cyclic
fluctuations.
derivative is taken into acount when u want zero cycling
always it is not suggeted to go for PID controller,as it is
costly,ur system may not need it at all.for eg if u want to
control level of a tank with 2 feeds and one withdrawl u
dont need integral action so u can go for PD controller
only
Is This Answer Correct ? | 7 Yes | 1 No |
Post New Answer View All Answers
if i added hypo before DM plant so i will affect my resins of anion or cation. if affect it so do prevent what kind of step should be taken to remove hypo before DM inlet?
how can I find out a sulfuric acid recovery plant disigner?
What kind of concerns is associated with temperature pinch points in condensers?
What are the advantages of using a ball mill over other conventional methods of crushing?
What are some guidelines for sizing a psv for a fire scenario on a vessel in a refinery service?
What is % of piping & equipment cost for a chemical plant having batch process?
What is an isochoric process?
which reformer efficiencywise best?
is extractive distillationӞH
What type of heat exchangers are most commonly used for a large-scale plant-cooling loop using seawater as the utility?
What is a surfactant?
Define condensate lift?
At what temperature does water have maximum density?
Are there any special considerations to be taken into account for combustion ammonia?
What particle sizes are electrostatic precipitators used to remove?