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Q 2. Ethane at an average flow rate of 8000 cm3/s enters a 1.5-in ID pipe...
Q 2. Ethane at an average flow rate of 8000 cm3/s enters a
1.5-in ID pipe at 40˚C and 13 bar and emerges at a point 300 m
lower than the inlet at 30˚C and 9 bar through a 1-in ID pipe.
Calculate
I. the velocity of the gas in the outlet? [1 Mark]
II. Δk (W)? [3 Marks]
III. Δk (W)? [1 marks]
Assuming that the methane behaves as an ideal gas, Mol.Wt
(C2H6) = 30.07 g/mol, g=9.81 m2/s.
Solutions
Amanda K answered 1 month agoRelated Solutions
Ethane gas (C2H6) is burned with air. The fuel flow rate is 0.1 kg/s and the...
Ethane gas (C2H6) is burned with air. The
fuel flow rate is 0.1 kg/s and the air flowrate is 2.2 kg/s.
Ethane’s enthalpy of formation is -84,680 kJ/kmol. Determine:
The equivalence ratio
Ethane’s lower heating value by deriving it from enthalpy of
formation data.
The heat release rate, in kW.
The mass fraction of oxygen in the products.
The mass of CO2 emitted per 1000 hours of operation.
The mass of fuel burned per 1000 hours of operation.
The adiabatic...
Fluid enters a tube with a flow rate of 0.021 kg/s and an inlet temperature of...
Fluid enters a tube with a flow rate of 0.021 kg/s and an inlet
temperature of 20°C. The tube, which has a length of 6.280 m and
diameter of 15 mm, has a surface temperature of 30°C. Determine the
heat transfer rate to the fluid if it is water. The heat transfer
rate to the fluid, in W is?
Flow enters a heated duct at v1 = 2000 m/s, T1 = 300 K, and q...
Flow enters a heated duct at v1 = 2000 m/s, T1 = 300 K, and q =
5 x 105 J/kg. Find Mach1 and Mach2 for He, Ne, Ar, Kr, and Xe
A sing-around sensor outputs frequency 40 Hz. Knowing that the average flow rate in the pipe...
A sing-around sensor outputs frequency 40 Hz. Knowing that the
average flow rate in the pipe is Q= 40 l/min and the pipe radius is
2cm. What would be the distance between the emitting and receiving
wires?
Ethane (C2H6) is burned with air in a steady-flow combustor. The mass flow rate of fuel...
Ethane (C2H6) is burned with air in a
steady-flow combustor. The mass flow rate of fuel entering the
combustor is 0.57 kg/s and the equivalence ratio is 0.64. The fuel
enters at 25oC and the air enters at 500 K.
Determine:
The heat release rate, in kW.
The mass flow rate of air, in kg/s.
The mole fraction of O2 in the products.
The mass fraction of CO2 in the products.
The total mass of CO2 produced per year (365...
Saturated water vapor has a flow rate of 1.5 kg/s and a pressure of 0.51 bar....
Saturated water vapor has a flow rate of 1.5 kg/s and a pressure
of 0.51 bar. The vapor is to be completely condensed to saturated
liquid in the shell of a shell-and-tube heat
exchanger. In this case, the water vapor enters and the water exits
at the same temperature, which represents a case with infinitely
high m_dot * Cp for this condensing steam application. On the tube
side, city water is used as the cold fluid. The city water enters...
Consider the following combined cycle. The mass flow rate of air is 73 kg/s. Air enters...
Consider the following combined cycle. The mass flow rate of air
is 73 kg/s. Air enters the compressor at state 1 with Patm =1 atm
and Tamb = 20°C. The compressor has a pressure ratio of 7.5 and an
efficiency ?c = 0.85. Air enters the combustor and is heated to a
temperature TH = 1250°C. The turbine has an efficiency of ?t,1 =
0.87. The air leaving the turbine enters the steam boiler where it
transfers heat to the...
Nitrogen (N2), at 300 K, 1 bar with a mass flow rate of 1 kg/s enters...
Nitrogen (N2), at 300 K, 1 bar with a mass flow rate of 1 kg/s
enters an insulated mixing chamber and mixes with carbon dioxide
(CO2) entering as a separate stream at 500 K, 1 bar with a mass
flow rate of 0.5 kg/s. The mixture exits at 1 bar. Assuming ideal
gas behavior, for steady-state operation, determine (a) the molar
analysis (i.e., the molar flow rate for each gas) of the exiting
mixture, (b) the exit mixture temperature, and...
There is a river whose average daily flow Q follows a normal distribution. The average flow...
There is a river whose average daily flow Q follows a normal
distribution. The average flow is 800 cfs and the standard
deviation is 1000 cfs. Determine the following:
(a) The probability that the flow observed on a given day
exceeds 10,000 cfs.
(b) The probability that the observed flow is between 5,000
and 7,000 cfs.
c) The value of the flow that has a 1% probability of
exceeding.
There is a river whose average daily flow Q follows a normal distribution. The average flow...
There is a river whose average daily flow Q follows a normal
distribution. The average flow is 8000 cfs and the standard
deviation is 1000 cfs. Determine the following:
(a) The probability that the flow observed on a given day
exceeds 10,000 cfs.
(b) The probability that the observed flow is between 5,000
and 7,000 cfs.
(c) The value of the flow that has a 1% probability of
exceeding.
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