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Lie Systems, Jl. minutes off would require a 2.25 kg (4.96 Ib) of 0 per equivalent man-day generation rate as opposed to the 1.40 kg J3 08 ib) 02 used 6. The size and weight of the existing cell frames were used in this analysis This results in a cell active area of 0 0093 m2 (0.10 ft ) which is not necessarily optimized for the 0 generation rate chosen. The cell area optimization was not incluaed in this analysis since it is a state-of-the-art comparison. Possible weight savings projected at this time based on cell weight are small when compared to total equivalent weight OGS Schematic and Component List The OGS schematic is shown in Figure 4. The corresponding components list with the weight, volume and power for each indicated component in the schematic is given in Table 2. Figure 4 also indicates the OGS interfaces with other elements of an ARS These are summarized inTable3 TheprincipaloutputsoftheOGSare02forcrewconsumptionand H2 for the CO2 collection (EDC) and CO2 reduction processes OGS Mass Balance Subsystem operating conditions and fluid flow quantities were defined and are presented in the mass balance described in Figure 5 and Table4 Allfluidflowratesinthetablearegivenonaperman-daybasis. Product Gas Aerosol Formation Studies. The objective of this study was to determine whether or not potassium hydroxide (KOH) was lost from the SFWEM as an aerosol, and if so, in what quantity. Visible aerosol had been noticed in the past, following initial module startups. This had been assumed to be due to the "wet" conditions characteristic of a fresh electrolyte charge and low pressure operation. A break-in period of at least 24 hours of running after a fresh charge eliminated all visible aerosols. Additional testing was conducted to verify that elimination of visible aerosol also meant stoppage of all aerosoling. First a technique to measure possible aerosoling was derived and used for all testing. Samples were taken by directing the SFWEM effluent into a test chamber containing quartz wool which trapped the aerosol particles on its absorbent fibrous surfaces. Samples were then removed from the system and analyzed The quartz wool was placed in a clean beaker and rinsed thoroughly with triply distilled water. This rinsed water was then placed in a volumetric flask and titrated with 0.1 normal hydrochloric acid (HCl) and 0.01 normal KOH FouraerosolcollectiontestswererunasshowninTable5 Thefirsttess used a blank tube to calibrate the equipment. Test 2 was run at 108 mA/cm (100 ASF), ambient pressure, and 355K (180F) during the time when aerosol was visibly present. A total of 0.0015 g of KOH was detected Test 3 was run after the module had been operated for 42 hours and no aerosol was visibly 2 detectable The six-cell module at that time had been operated at 216 mA/cm (200 ASF), ambient pressure, and 355K (180F). No KOH was detected. Another sample (Test 4) was obtained when the module had operated for 64 hours after starting and at the above conditions. Again, no KOH was observed or detectable by the analytical technique described. 12PDF Image | STATIC FEED WATER ELECTROLYSIS PROCESS
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