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V Cone Flowmeters

McCrometer is a leading global flow instrumentation specialist which specialises in the design, manufacture, installation and testing of flow metering solutions. Instrument, process, facility and consulting engineers worldwide have confidently chosen McCrometer’s flow meters for 50 years. McCrometer’s flow technologies serve in a wide range of complex and harsh applications. McCrometer's application engineers, researchers and designers apply their expertise in flow physics and real-world operating dynamics. The results are some of the most accurate, innovative and trusted flow meters on the market. McCrometer is a global leader in providing flow measurement solutions including differential pressure (DP), electromagnetic, propeller, and variable area technologies. Its flow meter products are used in many liquid, gas and steam fluid processes in various industries: Chemical, Electric Power, Facilities, Food, HVAC, Irrigation, Oil/Gas, Water and Waste Water.

The following links are compliments of our valued sponsor McCrometer - Please support our sponsors, without them ICEweb could not exist.

The following papers are made available thanks to Dr Bob Peters of McCrometer

New Compact Wet Gas Meter Based on a Microwave Water Detection Technique and Differential Pressure Flow Measurement- Dr Øystein Lund Bø and Dr Ebbe Nyfors, Roxar Flow Measurement, Dr Tore Løland, Statoil and Dr Jean Paul Couput, TotalFinaElf

Testing the Wafer V-Cone Flowmeters in accordance with API 5.7 “Testing Protocol for Differential Pressure Flow Measurement Devices” in the CEESI Colorado Test Facility- Dr R.J.W.Peters – Flow Measurement Technology Manager, McCrometer,Dr Richard Steven – Multiphase Meter Development Manager, McCrometer, Steve Caldwell – Vice President, CEESI, Bill Johansen – Engineering Manager, CEESI

Tests of the V-Cone Flow Meter at Southwest Research Institute® and Utah State University in Accordance with the New API Chapter 5.7 Test Protocol (2.3 Meg)-Dr. Darin L. George – Senior Research Engineer, Southwest Research Institute, Mr. Edgar B. Bowles – Fluid Systems Engineering Manager, Southwest Research Institute, Ms. Marybeth Nored – Research Engineer, Southwest Research Institute, Dr. R.J.W. Peters – Flow Measurement Technology Manager, McCrometer, Dr. Richard Steven – Multiphase Development Manager, McCrometer

The Use of a V-Cone Fuel Flow Meter to Measure the Coke Oven Gas and Natural Gas Flow in a Combined Heat and Power Plant - Ann McIver and Dr. R.J.W. Peters

Other papers from McCrometer

4.10 Liquid & Gas Flow Measurement for Oil/Gas FPSO Vessels - Marcus Davis -The ability to eliminate long required straight pipe runs for flow meter technologies while meeting necessary technical specifications reduces installation real estate and allows for flexible layouts while cutting overall pipe weight, material and installation costs. McCrometer’s uniquely designed differential pressure V-Cone® Flow Meter is now frequently utilised by the industry’s major FPSO Vessel builders and operators.

FPSO Flow Meter Fits Just Right - Space-Saving Flow Meter Gets Engineers Out Of Tight Spots In Offshore Applications: Ideal for Measuring Wet Gas, Condensate and Dirty or Abrasive Flows.
Custody Transfer Measurement with the V-Cone Flowmeter - Stephen A. Ifft - This paper discusses the approval of the McCrometer V-Cone flowmeter for custody transfer measurement in Canada.

V-Cone®, An Alternative to Orifice Meter in Wet Gas Applications - Stephen A. Ifft - This paper will discuss the use of the V-Cone differential pressure flowmeter to measure the flow of wet gas. Wet gas flow measurement is gaining considerable attention due to its importance in the oil and gas industry. Separator and well-head flow lines are two examples where wet gas can occur in a production system. Orifice plates have long been used for these applications. While orifice plates offer good measurement in clean gas applications, an alternative is needed that will provide better performance in the harsh environment of wet gas flow.

Partially Closed Valve Effects on the V-Cone Flowmeter - Stephen A. Ifft - Research conducted indicates that the V-Cone flowmeter is less susceptible to upstream flow disturbances than traditional flowmeters. This  testing has placed various flow disturbances upstream of the V-Cone including single elbows, double elbows out-of-plane, valves, and swirl generators. In an effort to further quantify the effects of partially closed valves on the V-Cone, McCrometer has completed the first in a series of valve installation effects tests.

Permanent Pressure Loss Comparison Among Various Flowmeter Technologies - Stephen A. Ifft - This paper explores the issue of permanent pressure loss through various types of flow metering technologies. Of particular interest is the V-Cone. The V-Cone flowmeter is a differential pressure device produced by McCrometer, Hemet, California, USA. By design, the V-Cone measures differential pressure created by a cone positioned in the center of the pipe. The open area through which the fluid passes is stretched over the edge of the cone. This annular space appears to constrict flow dramatically compared to other metering technologies. This paper compares the permanent pressure loss among meters in a typical application.

Signal Noise Ratio Comparison for V-Cone and Orifice Plate Flowmeter - Stephen A. Ifft - This paper discusses and compares the relative signal noise between the V-Cone differential pressure flowmeter and a typical orifice plate differential pressure flowmeter.

03.11 Subsea Flow Measurement - Flow measurement in subsea production systems, modules and templates is a challenge for flow meters. The complexity of subsea production systems ranges from simple satellite wells with one line to complex multiple well sites with a network of lines. Several pipe lines join together below the surface and will eventually extend to a fixed platform, Floating Production Storage and Offloading Vessel (FPSO), or perhaps a pipeline running to a land-based operation. Flow measurement is required in all phases of these operations, especially at well heads and where lines merge. Flow meters monitor critical processes and directly measure gases and liquids including crude, gas condensate, water, chemicals such as MEG (methyl ethyl glycol), gas for gas injection and gas lift, and many others. Subsea oil and gas production requires highly specialized and reliable precision equipment and instrumentation.

Field Experiences with V-Cone Technology - Philip A. Lawrence -This paper describes the principles and field use of the V-cone D.P. flowmeter used in the role of wellhead metering, injection measurement allocation metering / custody transfer both topside and sub-sea in on-offshore oil and gas production applications.

Northsea 1997 Flow Measurement Workshop "Wet Gas Testing with V-Cone" - This paper details a series of tests conducted on Wet Gas applications.

North Sea 2003 Flow Measurement Workshop - "Research Developments in Wet Gas Metering with V-Cone Meters" - Philip A. Lawrence, and Richard Steven - This paper briefly summarises the V-Cone meter technology and then discusses the results of repeat wet gas flow tests at NEL in May 2003 (at nominally 15 and 60 Bar) for the 0.75 beta ratio V-Cone meter, to show the repeatability of the meter with wet gas flows and the reliability of the previously published wet gas flow correlation within the NEL parameter range.

Test Separator Using Offshore Metering - Philip A. Lawrence - This paper highlights the advantages of using V-Cone Meters on Test Separators

Wet Gas Metering with V-Cone - Dr. Richard Steven and  Dr. RJW Peters - With the industrial requirement to meter wet gas flows increasing worldwide McCrometer has tested the performance of the single phase V-Cone meter (a Differential Pressure (DP) type meter) in wet gas flows in both the NEL and CEESI wet gas loops. These tests have shown how the V-Cone meter responds to different amounts of liquid entrained in a gas flow and have enabled correction factors to be developed.

V-Cone® Case Notes

3.11 V-Cone Flow Meters Solves Nuclear Lab Underwater Measurement Problem - Willem Smith -  NRG Lab faced a problem when the old vortex flow meter was wearing out and they found that model was no longer in production. The Lab plant managers needed a new flow metering solution with specific capabilities, including, electronics with a long life, low maintenance costs and a technology that performs well underwater and can withstand the effects of nuclear radiation

  Advanced Flow Meter Technology To The Rescue: V-Cone Reduces Installation Costs For Aging Power Plant - Markku Metsarinne Kouvo Automation Oy, Finland, Terttu Tuominen Metso Power Oy, Finland - Metso Power Oy, located in Finland, began a new project in 2002 to design and build a new flue gas treatment operation within the new power plant for client, Kotkan Energia Oy, located in Kotka, Finland. Metso Power had to design the flue gas treatment plant to fit into the section of the new plant, which was pre-determined by Kotkan Energia. The fact that the location of the flue gas treatment plant was selected in advance, added to the complexity of the project. It was necessary to fit the equipment into a limited space.

Don’t Let Valves Come Between You and Accurate Flow Measurement - Jim Panek -  Getting valves and flow meters to work together is sometimes a challenging task within industrial water and wastewater applications. Valves tend to create the kind of irregular media flow patterns in pipelines that make it a real challenge to achieve accurate flow measurement of liquids, gas or steam. That’s why many types of popular liquid flow meters require straight pipe runs. Unfortunately, the nature of the process or the kind of space required for long straight runs of pipe is often an impossible luxury in many of today’s plants.

Flow Meter Research for APS Beam-Lines - Jeff T. Collins & Brian Batzka - Many critical APS beam-line components, such as the photon shutters and fixed masks, utilise porous media for heat transfer enhancement and consequently rely on steady operation at design flow rates to ensure that the proper levels of heat transfer enhancement are maintained. it is therefore necessary to ensure that the flow metering system, which the component is interlocked on, has a high degree of reliability.

Flowmeter Smoothes City's Troubled Waters - An application note for the water industry.

The Economic and Technical Justification for changing from a Nozzle Flow Meter to a V-Cone Flow Meter on the outlet of a Steam Recovery Boiler in a Paper Plant - A very large integrated Paper Plant desired to improve productivity of paper production utilizing the existing equipment. The technical paper describes the reasons why the Paper Plant considered the replacement of a flow meter on the steam outlet of a Recovery Boiler.

Use of V-Cone Fuel Flow Meter to Measure Coke Oven Gas & Natural Gas Flow in a Combined Heat and Power Plant - Ann McIver and Dr. R.J.W. Peters - This paper describes key aspects of the Citizens Thermal Energy district energy system in Indianapolis. It will present the requirements imposed, through the continuous emissions monitoring rules established by the Environmental Protection Agency (EPA), as delineated in 40 CFR 75. The reason for the choice of the V-Cone, which is not a fuel flow metering technology specifically addressed in the regulations, will be presented and the tests required by the EPA to enable the V-Cone to be accepted. The results of the flow tests in an independent laboratory before and after a period in service will be given.

V-Cone Coke Oven Gas Case Study -  Flow monitoring of coke-oven gas is difficult due to solids build up on interior surfaces. Heavy accumulation often renders venturis, orifice and segmental orifice plates incapable of accurate flow measurement. In addition, the pressure-sensing ports of venturi or orifice plate flowmeters become plugged, making the readings of these primary differential pressure devices difficult, if not impossible. A 150mm diameter V-cone Differential Pressure Flowmeter with a full-scale range of 110mm water column was selected for evaluation by Svenskt Stal Oxelosund. Mr. Lekberg, Instrument Engineer for SSAB, was responsible for the installation and evaluation of the V-cone. After one month of continuous flow, Mr. Lekberg reported, “We had the meter installed for one month and then inspected it together with ANSKO (the local McCrometer representative), and to our surprise, the meter was clean and had no obvious wear on the cone. The performance of the meter was also excellent and to our full satisfaction”.

V-Cone® Application Notes

Further published articles and  independant reports are available on the McCrometer website.