Here is what happened. Before the test, the e-Cats are empty of H2.
They weighted the bottle on the scale. The reading was 13606.4 g. This is consistent with previous weighthings, since the bottle was at 13606.9 g on Oct. 6th. They then pressed the "zero" button, leaving the bottle on the scale. They let the test run. After the test, they went back to check the scale. The scale was reading -1700 g. Then they went on to fill the report. As you can see the report had been pre-printed. It was to be filled in manually. But the reporting format for the H2 consumption was weight (really mass) before test, weight after test. So they had to add the initial mass and the difference, and that's where they fucked up, adding -1.7 g instead of -1.7 kg. Happens all the time. They even wrote down kg instead of g. Obviously, they didn't have a 13 ton hydrogen bottle, right? Now, does 1.7 kg make sense? For the Oct. 6th demo, the consumption was 1.5 g. The Oct. 28th demo used 321 reactors, so that's 1700/321 = 5.3 g per reactor. Assuming the same 1.5 g per reactor, that leaves 3.8 g. At 2 g/mol, that's 1.9 x 321 = 610 mol of excess H2, which at 55 bar and 300 K will take a volume of 277 l. The modules were arranged in 8 or 10 rows of 5 m (since that is the dimension of the container). That's likely 40 to 50 m of tubing. That tubing with an inner radius of 2.66 - 3 mm. It all makes perfect sense to me. -- Berke Durak
