Handwarmers S07E02: Comparing electronic, to liquid fuel
Автор: Mountain Parameters
Загружено: 2022-11-02
Просмотров: 1289
Which handwarmer should I use today?
Now that we have both liquid fuel and electronic options for keeping our hands warm, we have to make choices when shopping for a hand warmer.
In my opinion, the arbitor of choice comes down to the planned activity. Electronic handwarmers are convenient. They are heavy, and don't last long. Liquid fuel handwarmers are messy and more troublesome to light, but can burn hotter and last all day. The reason is simple, the energy density of liquid fuel is 7 times greater than a battery of the same weight.
In this discussion, we look into this dynamic in greater detail.
00:20 Comparing weights
03:00 Comparing run times
04:45 Comparing energy densities
07:00 18650 cells in electronic handwarmer, how many you'd need for a full day out
07:40 weight comparison, full day of fuel compared to batteries
08:00 heated gloves
10:00 conclusions
References (charts used for energy density comparisons):
https://www.engineeringtoolbox.com/fo...
https://afdc.energy.gov/files/u/publi...
Handwarmer rebuilding parts, order form:
https://forms.gle/8JCcdLrzEG32sghd6
Доступные форматы для скачивания:
Скачать видео mp4
-
Информация по загрузке:
