what is the relation between flow and pressure.for example
relationship between level and pressure is p = phg like
that i want ans for this question.and also how to calculate
orifice sizing and flow transmitter. pls some one ans for
this questions.
Answers were Sorted based on User's Feedback
Answer / vishal
flow is directly proportional to square root of dp.
| Is This Answer Correct ? | 12 Yes | 0 No |
Answer / parmar chintan v
the propotionality is not linear bt d square root
relationship in dat flow rate is propotional 2 d square root
of diffrential pressure
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / yashpal saraswat
these all question answer is at place, go to this link
http://www.omega.com/literature/transactions/volume4/T9904-07-DIFF.html
| Is This Answer Correct ? | 0 Yes | 0 No |
Differentiate between PLC, SCADA and DCS systems
1 Answers Mumias Sugar, SRF, Trimula Industries,
how to connect 3 wire 4-20 mA transmitter in Plc system PLC system and how explain how the measuring data communicate with plc system.
pls give me presant awerness quistion and answer in my emailid.
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1. What means HART communicator / where it is used / how to use it? 2. Types of Thermocouples and its temperature ranges / output of thermocouple? 3. Types of RTDs and its temperature ranges / output of RTD? 4. Idea about Temperature Transmitters? 5. Difference between Analog and Digital signals? 6. Difference between “2 wire” and “4 wire” system / instruments? 7. Difference between “Potential” and “Potential free” contact? 8. Types of flow meters / transmitters? 9. Types of level transmitters? 10. Difference between “Power/Control” cable and “Instrument” cable? 11. What means “shield” and “screen” in cables / how it is useful? 12. Draw a schematic of closed loop circuit of flow / level / pressure / temperature? 13. Idea about calibration of Control valve / positioned / I/P? 14. How to bypass a digital/analog signal in PLC/DCS by hardwire and software?
Why we use 4 to 20 mA, (This is International Standard) instaed of this can we use 4-16, or 4-24 or 3- 15 or any other range
what is the differnce between PLC & DCS
Why we are using temperature and pressure as a reference when measuring flow of steam?
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