Welcome to OnlineConversion.com Forums 

Convert and Calculate Post any conversion related questions and discussions here. If you're having trouble converting something, this is where you should post. * Guest Posting is allowed. 

Thread Tools  Display Modes 
#1




kg/hr to MMSCFD
flow  700000 kg/hr
gas density  63 kg/m3 MW  20.4 press  986 psig temp  82.4F I did the conversion without taking into consideration the effects of temp and pressure and I got 9.42 MMSCFD Someone else did the conversion taking into consideration temp and pressure and got 677 MMSCFD I can't figure out how to arrive at the 677 MMSCFD solution. How is this done? Thank you. 
#2




Re: kg/hr to MMSCFD
700000 kg/hr / 63 kg/m^{3} = 11111.11 m^{3}/hr
11111.11 m^{3}/hr = 9 417 243.381 651 92 ft^{3}/day 9417243.38165192 ft^{3}/day / 1000000 = 9.417 MMCFD I got the same as you, not taking pressure and temperature into account. To convert MMCFD to MMSCFD you will need to know what standard temperature and pressure is. Then use the ideal gas law. (P_{i}V_{i})/T_{i} = (P_{f}V_{f})/T_{f} With P = Pressure, V = Volume, T = Temperature, i being initial and f being final. 
#3




Re: kg/hr to MMSCFD
As per the formula
(PV/T)i = (PV/T)f THE FINAL VOL = 9.4 MMCFD THE FINAL TEMP = 82.4 F FINLAL PRESSURE = 986PSIG FOR CONVERDION FROM MMCFD TO MMSCFD WHAT SHOULD BE THE BASE TEMP AND PRESSURE AND IN WHAT UNITS? THE IDELA GAS LAW IS APPLICABLE ONLY FOR LOW PRESSURES UPTO 45 PSIA, BUT IN THE ABOVE CASE THE PRESSURE IS 1000.7 PSIA, SO WHAT SHOULD BE THE FORMULA TO BE USED? 
#4




Re: kg/hr to MMSCFD
To covert kg/hr to MMscfd:
1. kg/hr / MW => kmol/hr 2. kmol/hr * 22.414 => Nm3/hr (1 kmol of gas occupies 22.414 Nm3 volume) 3. Nm3/hr * (273 + 15)/(273) => Sm3/hr (STP : 15 deg C , NTP 0 deg C) 4. Sm3/hr * (3.282^3 * 24 / 1E6) => MMscfd 
#5




Re: kg/hr to MMSCFD
Cumulative of sm3/h* 35.31 / 1 000 000 = MMSCFD

#6




Re: kg/hr to MMscfd
Hi all,
Please i'm having difficulty converting kg/h to MMscfd. For instance, i need to convert the following from kg/h to MMscfd: 930 000 and 516 240 respectively. I will appreciate. 
#7




Re: kg/hr to MMscfd
Quote:
You need to know what the gas is and its molecular weight. You also need to know what temperature your industry uses as "standard" in "standard cubic feet". It varies by industry. If not 15 °C, adjust that step in the outline. If you don't know either the molecular weight of your gas or its density at standard conditions, it is impossible to proceed. 
#8




Re: MMSCFD to M3
MMSCFD to M3.....??????

#9




Re: MMSCFD to M3
MMSCFD means million standard cubic feet per day. The standard means actual volume wasn't measured; it was calculated as though the gas was at some standard temperature and pressure (unfortunately different industries use different standards, so you don't really know what temperature)
The cubic feet can be converted to cubic meters, but because of the time element, it will be cubic meters per day 1 million cubic feet*(0.3048 m/1 ft)³ = 28317 m³ so 1 MMSCFD = 28317 m³/day measured at the "standard" temperature and pressure. 
#10




Re: kg/hr to MMSCFD
It's a great forum, many thanks, please keep doing the good work.

Thread Tools  
Display Modes  

