Comments by "Cees Timmerman" (@CTimmerman) on "The Unfortunate Truth About Toyota's Hydrogen V8 Engine" video.

  1. Too bad the remote uses batteries, though. Poor child slave miners.
    5
  2.  zee  There are noisy gasoline RC cars as well for you to avoid.
    4
  3. TL;DW: According to an FSU edu PDF, the volumetric density of liquid H2 is 2600 Wh/L, but that requires extreme cooling. 150 bar H2 is only 405 Wh/L, which is greater than 250 Wh/L for lithium but that extra 62% is mostly lost due to inefficient fuel cells and compression compared to batteries. The Toyota Mirai uses carbon fibre-reinforced plastic tanks to store the hydrogen at a pressure of 700 bar and Wikipedia says under the United States Environmental Protection Agency (EPA) cycle, the 2016 model year Mirai has a range of 502 km (312 mi) on a full tank, with a combined city/highway fuel economy rating of 66 mpg‑US (3.6 L/100 km; 79 mpg‑imp) equivalent (MPG-equivalent). The official Toyota consumption declaration states hydrogen is consumed at the rate of 0.8 kg/100 km (2.8 lb/100 miles) on the combined urban/extra urban cycle. That still leaves compression losses and possible leaks to worry about, but renewables often overproduce and H2 doesn't pool on the floor so vents easily.
    1