Professor Flow

You ask, Professor Flow answers

Question Asked List

Q00036	I am putting together some work plans for an upgrade to a refinery and some of the work activities reqire recalibration of some flow meters
Q00035	Do you have a list of choke coefficients used to estimate gas flow rates for natural gas wells?
Q00034	What flowmeters can be used for steam applications?
Q00033	I suspect someone has been tampering with our Flow Computers when we are offloading petroleum products through the night
Q00032	I have a problem measuring flow on a 1 inch Freon line. I can see from the sight glass 12 inches away from the valve that the freon is bubbly sometimes and sometimes it is not
Q00031	I have an application for flowmeters on large pipes that are full of raw sewage. We need a low cost solution for 1M diameters pipes.
Q00030	I need to find flow measurement devices that will not contaminate the liquids in the plant. Any bacteria that enters the batch will become a very serious problem for the company.
Q00029	I need a good computer simulation program to help me solve a difficult flow problem in a fixed bed catalytic reactor
Q00028	I have a problem and have to fix a drifting flow meter, It is a standard liquid-flow transmitter with an orifice and differential pressure transmitter mounted in a pipeline
Q00027	Could you please explain briefly what is meant by pressure and temperature compensation
Q00026	I am interesting with LPG metering. Curently, we use PD or turbine meter for the LPG liquid line and no metering for the vapour return. Since the LPG price is increasing, they are asking to have more accurate LPG metering.
Q00025	I am looking for a tiny flow meter because I only want to measure a very little amount of gas approximately 0.001-0.004 ml/min
Q00024	I was asked to develop a new cold potable water meter; but, I have only very little knowledge on the design principles of volumetric (positive displacement) and velocity (turbine) water meter.
Q00023	I need to buy a flowmeter, but i don't know what kind the flowmeter i have to buy. for your information, i am a technical support for medical equiptment like anesthesia machine, ventilator
Q00022	We have installed 3 electromagnetic meters on our 10 inch diesel lines at 40 deg celcius . The flange rating for the meters is 300 ANSI. We don't understand why the flow readings are going all over the place
Q00021	We have some wells collectively producing large amounts of liquid crude, water , natural gas and sand in different quantities depending on several factors. I would like to know what type of technology is available for the measurement of all four
Q00020	Today I had trouble with this meter -the readings are going crazy !! They seem to be going up and down all the time and don't reflect the actual flow rates
Q00019	I have a 3" line coming off of a digester that I'm looking to measure the flow from..
Q00018	Re-install several clamp on transit time ultrasonic flowmeters on carbon steel pipes
Q00017	Would like to fabricate a reasonably quick and dirty system to measure/calibrate different automotive mass air flow meters
Q00016	Looking for a cost effective mass flow meter solution to sense FLEETCOL 9081
Q00015	I am interested in knowing what is considered accepted practice for 'revenue quality' metering for steam
Q00014	Need to measure a stream of 19% aqueous ammonia ranging from 15 to 35 lb/hr @ 60 to 70 PSIG through a 1/2" pipe
Q00013	Recommend a type of flow sensor for flue gas desulfurization slurrys
Q00012	What type of meter would your recommend in terms of cost, maintenance, and relative accuracy (not custody transfer accuracy) for crude oil measurement service
Q00011	Seeking advice on an economical flow meter
Q00010	Locate a meter for use in liquid propane with a flow rate of 1/4-1 gallon per minute
Q00009	Final year project based on digital flowmetering
Q00008	Double isolation arrangement
Q00007	A fairly cheap venturi principal valve to attach to my ir compressor
Q00006	The complete comparison table of all flow measurement methods
Q00005	What a flowmeter does and what could happen if one did not work correctly
Q00004	Venturi effect
Q00003	A suitable flow meter for the measurement of Hydrogen Peroxide
Q00002	Trying to find the standard AGA7 publication for fuel gas measurement
Q00001	Need an off-the-shelf instrument to monitor gas flow in a 1" pipe, arround 200 cfm