News
Welcome to the News community!
Rules:
1. Be civil
Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban.
2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.
Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.
3. No bots, spam or self-promotion.
Only approved bots, which follow the guidelines for bots set by the instance, are allowed.
4. Post titles should be the same as the article used as source.
Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.
5. Only recent news is allowed.
Posts must be news from the most recent 30 days.
6. All posts must be news articles.
No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.
7. No duplicate posts.
If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.
8. Misinformation is prohibited.
Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.
9. No link shorteners.
The auto mod will contact you if a link shortener is detected, please delete your post if they are right.
10. Don't copy entire article in your post body
For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.
view the rest of the comments
That's some good diligence!
It looks like the ecoflow values are lower:
https://www.inchcalculator.com/convert/kilowatt-to-btu-per-hour/
30 KWh/day x 365 days x 3,412 Btu/KWh = 37,361,400 Btu
Which is half the value I found for 2015. Does ecoflow have more current data and houses are twice as efficient? Maybe. They're also trying to sell something, so maybe it's based on data from their products. They don't mention where they got it from.
The welovecycling conversion is off by 1000 (maybe the kilocalorie threw them off?)
https://www.inchcalculator.com/convert/joule-to-kilocalorie/
1 kcal = 4,184 J so 1 J = 1/4,184 kcal = 0.00023900573613 kcal
Otherwise, your math was right, just off by 3 zeros, so a household is more like 3.6 bagels per hour.
The nist site also doesn't specify a unit of time, but if it is 20 watts/hour (Wh) we'd only need to move it 3 places for KWh, or 0.020 KWh.
Too many conversions can introduce errors, so we can go from KWh to kcal directly:
https://www.inchcalculator.com/convert/kilowatt-to-kilocalorie-per-hour/
0.020 KWh x 860 kcalh/KWh = 17.2 kcalh
Which, yeah, is not much of a bagel per hour. Keep in mind that the daily recommended calories for an average adult is 2000 kcal.
All in all, this was a fun thought experiment, so thanks for looking into it further!
Nice! I knew my math was off by three zeros somewhere, but it was late at night, and the exercise per se was fun enough so I wrapped it up.
Your corrections make everything make more sense, at least on the brain side. Considering the 2000 calories per day recommendation for the whole body, which is 83 cals per hour, the brain consuming 17.2 cals, or 20% of it sounds about right - though from another point of view, 20% consumption of the whole energy intake sounds like a lot! The brain weighs about 3 lbs, so in an adult male weighing 190 lbs, that's roughly 1.5%.
1.5% of the "cell population" consumes 20% of the total energy. That's some Occupy Wall Street stuff right there!
And bringing it back to bagels, 17.2 cals represents less than 10% of a bagel. So, a bagel bite. The brain consumes a bagel bite per hour. Which is wild given how complex it is (at least, complex to us.)
Finally, I said "at least on the brain side" because a household requiring just 3.6 bagels per hour sounds quite low. You mean to tell me that if I burn 4 bagels, I can power my TV, my fridge and my AC for a full hour? Now I know what to do with expired bagels!!!
Anyway. Thanks for humoring me! Awesome exercise and awesome discussion. It was fun!