A storage tank (volume V = 10 m3 , temperature T = 20oC, initial pressure p0 = 10 atm) contains methane (MM = 16 kg/kmol). For accidental reasons, a small hole of diameter D = 2 cm, is produced in the tank wall through which the methane is free to escape. Assuming adiabatic transformations for the gas (γ = 1.33), 1. check if the outgoing flow of methane is sonic; 2. calculate the specific flow rate of the outgoing gas at starting time;
A storage tank (volume V = 10 m3 , temperature T = 20oC, initial pressure p0 = 10 atm) contains methane (MM = 16 kg/kmol). For accidental reasons, a small hole of diameter D = 2 cm, is produced in the tank wall through which the methane is free to escape. Assuming adiabatic transformations for the gas (γ = 1.33), 1. check if the outgoing flow of methane is sonic; 2. calculate the specific flow rate of the outgoing gas at starting time;
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
A storage tank (volume V = 10 m3
, temperature T =
20oC, initial pressure p0 = 10 atm) contains methane
(MM = 16 kg/kmol). For accidental reasons, a small
hole of diameter D = 2 cm, is produced in the tank wall
through which the methane is free to escape. Assuming
adiabatic transformations for the gas (γ = 1.33),
1. check if the outgoing flow of methane is sonic;
2. calculate the specific flow rate of the outgoing gas
at starting time;
3. calculate the time t necessary in order to reduce
the pressure inside the tank up to 3 atm;
4. calculate the total mass of gas discharged from tank
in time t.
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