Development of Analytical Method for Mass …
549
Fig. 1 A photograph of developed permselectivity test bench and manufactured permeation cell
[3]
In this study, Nitrogen is used as a fluid, supplied by Air Liquide with purity
of 99.99%. The real-time monitoring of all the input parameters (mass flowrate,
pressure, and temperature) and their control during the experiments is facilitated by
the LabVIEW program that has been developed. Three Coriolis mass flow meters
are used to monitor the outflow. In addition, two mass flow controllers are placed at
the inlet in order to measure the mass flowrate of the fluid entering into the porous
tube. Moreover, pressure transducers and thermocouples are connected to a NI data
acquisition system to measure the transient variation of parameters at inlet and outlets.
More details regarding the test bench can be found in the previous article [9, 10].
3 Results and Discussion
As described above, three mass flow meters are placed at outlets in order to measure
the flow through primary and secondary outlets. The aim is to determine the mass
flowrate from each cell (i.e., eight primary outlets) and secondary outlet. In this
method, the mass flowrate from each cell is measured one by one by changing the
position of the mass flow meters along the length of the porous tube. It can be achieved
by repeating the same test four times in which position of the mass flow meters will
be changed after each test. A series of tests are performed using this method and it
is found that the recovered flow for 0.30 g/s case is 37% (see Table 1). This may
549
Fig. 1 A photograph of developed permselectivity test bench and manufactured permeation cell
[3]
In this study, Nitrogen is used as a fluid, supplied by Air Liquide with purity
of 99.99%. The real-time monitoring of all the input parameters (mass flowrate,
pressure, and temperature) and their control during the experiments is facilitated by
the LabVIEW program that has been developed. Three Coriolis mass flow meters
are used to monitor the outflow. In addition, two mass flow controllers are placed at
the inlet in order to measure the mass flowrate of the fluid entering into the porous
tube. Moreover, pressure transducers and thermocouples are connected to a NI data
acquisition system to measure the transient variation of parameters at inlet and outlets.
More details regarding the test bench can be found in the previous article [9, 10].
3 Results and Discussion
As described above, three mass flow meters are placed at outlets in order to measure
the flow through primary and secondary outlets. The aim is to determine the mass
flowrate from each cell (i.e., eight primary outlets) and secondary outlet. In this
method, the mass flowrate from each cell is measured one by one by changing the
position of the mass flow meters along the length of the porous tube. It can be achieved
by repeating the same test four times in which position of the mass flow meters will
be changed after each test. A series of tests are performed using this method and it
is found that the recovered flow for 0.30 g/s case is 37% (see Table 1). This may