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M.Akram
Member

Join Date: Dec 2010
Location: Lahore ,Pakistan
Posts: 9

Natural Gas Meter Sizing

12/24/2010 4:35 AM

Meter REQUIREMENT

I am a manager Process (Chemical Engineer)

I want to size a natural gas meter oin the basis of below given data:

Flow - Minimum/Normal/Maximum: 100 / 1500 / 3600 NM3/Hour

Pressure - Minimum/Normal/Maximum: 0.1 / 2.2 / 6 Barg.

Temperature - Minimum/Normal/Maximum: 5 / 15 / 33 0 C

Density – 0.84 Kg/NM3

Pipe Size – 6" Sch. 40

Please help me out to size the meter.

Akram
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josej
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Join Date: Mar 2008
Location: Mumbai
Posts: 250
Good Answers: 2
#1

Re: Natural Gas Meter sizing

12/24/2010 5:46 AM

Try To contact Daniel , Instromet Elster, or other approved vendor, They size and give accuracy curve.

Regards

Jose
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nikunjjain
Active Contributor

Join Date: May 2008
Location: Mumbai
Posts: 11
Good Answers: 1
#2

Re: Natural Gas Meter sizing

12/24/2010 8:50 AM

what kind of meter are you looking at?? i.e. massflowmeter, orifice meter, etc

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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
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#3

Re: Natural Gas Meter Sizing

12/24/2010 5:59 PM

(Pasted from reply to duplicate thread):

That's probably manufacturer-specific.

The single value of density over the rather high range of pressures looks a bit odd.

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adeebulrehman
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Pakistan - Member - New Member

Join Date: Dec 2009
Posts: 29
#4

Re: Natural Gas Meter Sizing

12/31/2010 8:05 PM

Dear Mr. Akram, Hope that you are fine. Following are the calculation from Krohne Vortex Sizing KROVOR Sizing KROVOR 1.0.0.425 Database 1.1.1.4 Customer : ATTN. M AKRAM PA no. : VK no. : Pos. : Tag No : Reference : Physical data Fluid : Natural Gas (gas mix) i-Butane 0.03 % n-Butane 0.03 % Carbon dioxyd 0.9 % Ethane 2.5 % Hydrogen Sulfide 1.0 % Methane 94.0 % Nitrogen 1.3 % Oxygen 0.02 % i-Pentane 0.01 % n-Pentane 0.01 % Propane 0.2 % Temperature : 2.2 ° C Pressure : 15.0 bar gauge Density : 12.462 kg/m³ (Norm 0.763967 kg/m³) Viscosity : 0.7 mPa.s Q-Max value : 3600.0 m³/h norm norm. Norm conditions System : Norm (DIN) Temperature : 0.0 ° C Pressure : 0.0 bar gauge (101.325 kPa abs.) Density : 0.763967 kg/m³ Meter selection Meter : OPTISWIRL 4070 - DN 50 part. V-Number : VG17_7 Suitable Sizing details Flow range: 1295.35 - 6332.99 m³/h norm Velocity range: 11.23 - 54.92 m/s Pressure loss range: 0.0148995 - 0.356137 bar Reynolds number at min. flow: 10000.0 OPTISWIRL 4070 DN 50 VNumber: VG17_7 Application turndown: 1:2.78 Vortex frequency at 3600.0 m³/h norm: 491.5 Hz Velocity (tube) at 3600.0 m³/h norm: 31.22 m/s Regard's ADEEB CSE

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M.Akram
Member

Join Date: Dec 2010
Location: Lahore ,Pakistan
Posts: 9
#5

Re: Natural Gas Meter Sizing

02/06/2011 11:58 PM

Dear Friends,

We need NG meter for most accuarate gas flow measurement.Density of gas increases with increase in length of pipe for same base pressure.The desnsity given here is just upstream of metering point.

Can any boy tell me few well known vendors in this concern?

Akram
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adeebulrehman
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Pakistan - Member - New Member

Join Date: Dec 2009
Posts: 29
#6
In reply to #5

Re: Natural Gas Meter Sizing

02/08/2011 11:13 AM

Dear Mr. Ikram, Krohne is world leading Manufacturer of Flow Meters. There various Vortex flow Meter are installed all over major industries for know there actual consumption. Check these. www.krohne.com/index.php?id=16629 http://www.krohne.com/OPTISWIRL_4070_put_to_test.16509.0.html Regard's AUR

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adeebulrehman (2); josej (1); M.Akram (1); nikunjjain (1); Tornado (1)

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