The fuel cell is operated in the pressure regulation mode: the gas flow rates are regulated thanks to mass flow controllers placed upstream of the stack and the gas pressures at stack inlets are controlled by regulation valves located downstream of the stack. The choice of the various tests to...
However, when the water loading is a substantial proportion of the total liquid loading, the water and condensate can separate out at low flow rates, leading to the accumulation of stagnant water at low points in the line. The presence of stagnant water can lead to the production of water ...
The temperature is stable within 3.1 K during an experimental run with a maximum length of around 17 h and corresponds to room temperature. With this setup it is possible to measure pressures in the range of 10 to 100,000 Pa with Capacitance diaphragm gauges (CDG). This type of sensor ...
if the initial pressures on both sides are equal, gas will flow from the low-temperature side to the high-temperature side to cause the high-temperature pressure to increase. The latter situation is called thermal transpiration, and the steady-state result is called thethermomolecular pressure dif...
Ariturk MS (2019) Optimizing the production and injection wells flow rates in geothermal field using artificial intelligence. In: Environmental science Aulia A, Rahman A, Quijano Velasco JJ (2014) Strategic well test planning using random forest. In: All days. SPE. https://doi.org/10.2118/167...
phenomena, improve separation technologies, and mitigate the uncertainty and risk associated with separator design and operation at elevated pressures, high-pressure separation tests have been conducted at 1,500 psig and 2,600 psig over a wide range of gas flow rates and inlet liquid concentrations....
Recently, nasal high flow (NHF) therapy has been investigated as an alternative, especially in CPAP-intolerant children. The present study aimed to compare and contrast the positive airway pressures and expired gas washout generated by NHF versus CPAP in child nasal airway replicas. Methods NHF ...
Figure 4 shows the flow process of the separator, demister, and flash tank. The separation process is isobaric once the flash takes place. The pressures at states 1, 2, and 3 are equivalent and equal to the separator pressure (\({P}_{1}={P}_{2}={P}_{3}={P}_{separator})\),...
, Ng. In order to solve this set of equations, some supplementary equations are needed including capillary pressure equation to relate water and gas partial pressures to each other, and the relative permeability equations (e.g. van Genuchten, 1980). Eq. (7) is usually solved using numerical ...
At gas velocities above 15 m/s, it can be seen that the liquid holdup is irrelevant to gas velocities at pressures of 10 and 20 MPa. This is due to the no-slip assumption of the proposed model. Download: Download high-res image (279KB) Download: Download full-size image Fig. ...