Should I use a Regenerative Drive?
Load is driving motor so motor is actually working as generator. Is there any advantage of installing Regenerative drive?
By d on 19 March, 2019 - 3:38 pm
it is reducing power feed to the plant, so you are currently benefiting with no extra expense....
VFD on 300 KW , 440 Volts Compressor
Replacing Reduced voltage starter to VFD on 300KW Motor drive compressor
By d on 19 March, 2019 - 3:43 pm
That is only a 300 HP motor. To change the drive, you have to carryout a mechanical and process...
Model-free Controller Simulation
I am designing model-free controllers and I would like to simulate its performances.
I received a request for information about process safety time. I thought that some members of the list might be interested. ...
Online Calculator for Time-Optimal Jerk-Limited Trajectories
Calculate and download time-optimal trajectories with jerk limitation online
Induced Over Voltage Test of Transformer
What will be the normal current during during the test of induced over voltage of a 200KVA 11KV/400V 3 phase transformer?
Questions and Insights about Aeroderivative Gas Turbine
Some questions about the mechanical side of the aeroderivative GT.
By Paul on 7 March, 2019 - 4:54 pm
>what may cause the shaft to not rotate freely? i think this >has a relationship with the...
on 7 March, 2019 - 9:47 am
Isulamu, As mentioned, my knowledge of and experience with aeroderivative gas turbines is very...
By Eddie on 4 March, 2019 - 1:46 pm
CSA It is a control question. My sensor picked up hot temp spikes In the bellmouth. I have no...
By Eddie on 4 March, 2019 - 9:47 am
Hi everyone, Question to add to the above. 3rd...? Can there ever be a scenario where hot...
Piping & Instrumentation Diagram (P&ID) Analysis Tool
Developing an online tool for extracting information from PIDs
Matlab vs C++ in interfacing with electromechanical industrial systems
GE Fr9E Turbine Inner Barrel Temperature
GE Fr 9E Turbine inner barrel temperatures (TTIB) have increased from 155 Deg C to 195 Deg C while GT ramped up from 60MW to base load (125MW).
Photoelectric sensor sees small gap in product spacing and machine faults on insufficient gap
By James Ingraham on 6 March, 2019 - 4:47 pm
Yes. The most common way of doing this it with a delay-off timer in the PLC. You can also get...
Suitable Sensor for Detection of Carry Over Condensate in Gas Line
Liquid Carry Over Detection Solution in the pressurized gas line?
By Devin Liu on 28 February, 2019 - 1:11 am
We are a professional industrial sensor manufacturer in China. Maybe our engineer can help you with...
Pressure Transmitter Calibration
Issue checking a datasheet for pressure transmitter submitted by a contractor
By d on 4 March, 2019 - 1:30 pm
The end use max is within the allowable range of 100-2000 mbar, that part is okay. But you will...
Help converting AEG Logistat A020 statement code
Preselected Load in Generator
Operating the Turbine Generator on Preselected Load
What is difference between Triad and Pair cable?
Using SIL-2 Devices in SIL-3 Loops
Can we use two SIL-2 capable sensors in 1oo2 configuration in a SIL-3 loop?
By masoud sadra on 26 February, 2019 - 11:54 am
Ahmet, It`s not true. you can use lower SIL rated device in higher loop as long as you maintain...
Requirements for Sil 3 System
Questions about SIL 3 system requirements
By masoud Sadra on 26 February, 2019 - 10:52 am
Hi, To have a SIL 3 SIF, just buying a SIL 3 certified primary element (e.g. transmitter), the...
help for PID algorithm in C!
Posted by B. George on 30 July, 2001 - 5:36 am
temperature control with PID algorithm
Actuator Friction Modelling
My project is modeling an actuator. It consists of a contraction between a leadscrew and a spring. I have encountered some issues modeling the friction component of the system.
WHAT IS PURGE AIR AND WHAT IS OPERATION OF PURGE AIR
By Mick J on 21 February, 2019 - 1:45 am
Few points, the purge air is from the compressor discharge, not the atomizing air (which after the...
By Mick J on 15 February, 2019 - 1:16 am
Ah! I think you misunderstood, my fault, there is no gas used on this machine anymore. It is...
By Mick J on 14 February, 2019 - 4:05 am
The F5001 i am working on currently has had a combustion problem for many years. Investigations...
Liquid Fuel Burner FF Ratio
what is the Burner FF Ratio?
Different Loop Tuning Methods vs Trial and Error
Question is about whether to use lambda tuning or ziegler-nichols method versus trial and error loop tuning.
Coriolis Flow Meter Density Deviation
Coriolis Flow meter Density Deviation 44% and more