I have a orifice installed in plant which is design for
0~100 inH2O for 0~80MMSCFD, now due to process change the
maximum flow is change to 120 MMSCFD so for this new
process value what will be the DP across orifice.
- 1 Answers
- 7253 Views
- I also Faced
- E-Mail Answers
Answer Posted / carl_ellis
100 in H2O = 80 MMSCFD
x = 120 MMSCFD
Maximum flow rate is the square root of the normalized
percentage of the maximum DP (at the maximum flow rate)
The maximum flow rate increases 150% of the original max
flow rate:
120/80 = 1.50, so 120 MMSCFD is 150% of 80 MMSCFD, or a 50%
increase in maximum flow rate
To calculate the corresponding DP at a max flow rate 150%
higher than the original, where X = DP
sq rt of X = 1.50 (square root of normalized percentage of DP)
X = 1.50^2 = 2.25
2.25 = 225% (work in normalized percentage)
225% of 100 inH2O = 225 in H2O at a max flow rate of 120 MMSCFD
Carl Ellis
Measure First
| Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
What are de-saturators?
If fire would be inside the plant which fire detector is to detected the fire.
What is three element in drum level?
Draw block digram for well head from well to shipping pump?
What is stripper & spilitter ? Diffrence in this.?
what is diffrance between FF & SMART, explain with difination
what happen if i increase height of displacer type LT.accuracy or sensitivity are affected.why?
What are advantages and disadvantage of the ac supply load cell?
what can of fault ofently come in vibration mesurement?
Please can anybody help for control valve sizing step by step procedure?
1. what is modbus cable? 2. what kind of communication we are using for the interface of DCS, ESD and Third party cabinets? 3. What is serial communication and peer to peer communication?
i have done DAE in Instrumentation and Process Control. i have applied for an apprentice training in chemical company after three day my interview will be conduct but i need more information about industrial process control and controller. my e mail is imran_dilsetu@yahoo.com please tell me interview question relative to instrumentation ?
CONTROL VALVE OPERATING IN MANUAL BUT NOT IN MANUAL. WHAT SHOULD BE THE PROBLEM ?
I want to know the questions asked in ONGC interview(after being selected in the written exam) for Instrumentation branch.Kindly help.
Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.
