Difine flashing , Cavitaion & Noise?
how to minimize these effects
Answer Posted / ravi
Flashing:It is formation of vapour bubbles at vena-
contracta.
Cavitation:It is formation & collapse of vapour bubbles at
Vena-contracta.
Noise:Mech Noise,Hydrodynamic Noise,Aerodynamic Noise.
These all effects can be minimised by proper sizing of
Control valve as well as proper type & material of Valve
Body.
| Is This Answer Correct ? | 13 Yes | 0 No |
Post New Answer View All Answers
Difference between ultra sonic flow meter
what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?
What are different types of cable?
how to change measuring units from mmwc to cubm/h in rosemount air flow transmitter with hart communicator fluke 744
Explain operation of Haskel pump.
Make Heater Process Logic.
How will you calibrate PID controller? explain with example.
what is installation and commissioning of (fat & sat) of power plant dcs ? this question keeps in desirable conditions of one company .
How to Calibrate Flammable gas detector in field
WHAT ARE THE INSTRUMENTAL DIAGRAMSOF VALVES?
IN CONTROL VALVE SPECIFICATIONS GENERALLY TERM " DE- 200" ."DM -400"USED,, WHAT IS DE/ DM STANDS FOR?
How to measure the dust in chimney(spm)?
WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.
Q1]IF THE RANGE FOR FLOW IS -35 TO 125 WHAT WILL BE THE SPAN FOR ABSOLUTE AND FOR NORMAL? Q2]HOW TO CALIBRATE CAPILLARY TYPE LT? Q3]HOW MANY ERROR CALCULATIONS ARE THERE USED IN PROCESS INDUSTRIES? Q4]HOW TO CALIBRATE TEMPERATURE TRANSMITTER? Q5] HOW TO CALIBRATE LEVEL TROLL AND HOW TO CONNECT? Q6]PLEASE TELL ME THE BASIC FOR INSTRUMENTATION WHICH IS APPLIED FOR CALIBRATION AND FOR ALL? PLEASE MAIL THE ANSWER TO honest_yes@yahoo.in
What are the error values can accepted in flow transmitter calibration?could u give any formula for this?