Gas Metering Pt-11 371t

Determination of Flow Rate at Site • Determine, in how much time the meter counter completes cir cle of 10 Cuft or es 10 Cuft gas

FLOWRATE

10 FT3 / 6 SEC 10/6 X3600 6000 FT3 / Hr

• Alternatively we can determine flow rate by noting that how m uch volume of gas has ed in one minute. Suppose that it comes = 100 Cuft in 1 minute then flowrate will be

100 X 60 = 6000 Cuft/Hr

Determination of flow rate of the meter in video?

Calculation of Bill Domestic Consumer: Meter Reading (Previous Month) = 0.450 M3 Meter Reading (Current Month) = 68.000 M3 Difference (Gas Consumed) = 67.550 M3 Apply P and T factors to arrive at Standard Volume. In case of Domestic Consumers such factors are not applied Conversion to Hm3 = 67.550/100 = 0.67 Hm3

If the Readings are in Cuft then conversion to Hm3 as follows: (Cuft × 0.02817385) / 100

= Cuft /(35.31467×100) Hm3

Conversion of Hm3 to MMBTU = (0.67 × 100)/0.02817385 × CV

(Btus/SCF)

× 1/1000,000

Conversion of Hm3 to MMBTU = (0.67 × CV (Btus/SCF) ) × 100 × 35.31467 / 1000,000= 2.19

Complete Bill also includes GST and Meter Rent Slab = (no of days/30) × (Hm3 × GCV ) × 100 × 35.31467 / 1000,000

Domestic Slab Rates Slab

Usage of gas in Hm3

Rs. Per MMBtu

1

Upto 1 Hm3

95.0

2

1 to 3

190.0

3

3 to 5

800.0

4

Over 5 and Above

1006.4

1.57× 95.01 = 149.16 0.62× 99.48 = 61.68

Conversion Factors 1 m3 (Cum) = 35.31467 ft3 (Cuft)

1 MCF = 1000 CF

(MCF means thousand Cubic feet)

1 MMCF = 1000 MCF

Btu = Cuft × GCV

(MMCF means Million Cubic feet)

(Gross Calorific Value in Btus per SCF)

MMBtu = MMCF × GCV °F = 1.8 × °C + 32 1 bar = 14.50377 psi