A 9-hp Case steam traction engine:
It speaks to the inefficiency of those machines that such a monster generated 9 horsepower. But in the 1880s, there wasn't another option.
A blog by a "sucker" and a "loser" who served her country in the Navy.
If you're one of the Covidiots who believe that COVID-19 is "just the flu",
that the 2020 election was stolen, or
especially if you supported the 1/6/21 insurrection,
leave now.
Slava Ukraini!
Friday, April 15, 2022
5 comments:
House Rules #1, #2 and #6 apply to all comments. Rule #3 also applies to political comments.
In short, don't be a jackass. THIS MEANS YOU!
If you never see your comments posted, see Rule #7.
All comments must be on point and address either the points raised in the blog post or points raised by commenters in response.
Any comments that drift off onto other topics are subject to deletion.
(Please don't feed the trolls.)
中國詞不評論，冒抹除的風險。僅英語。
COMMENT MODERATION IS IN EFFECT UFN. This means that if you are an insulting dick, nobody will ever see it.
"...only 9 hp" Watching this, I was thinking what a useful source of power that could used in myriad ways on a farm or homestead.
ReplyDeleteThey had the advantage of being easier to manage than teams
ReplyDeleteof horses. Steam (and electric) had the advantage of nearly
100% starting torque from startup/stalled. That and able
to provide rotary motion useful for other machines
(saws, mill work).
Efficient, maybe lower than IC but mostly due to waste heat
up the stack compared to out the tail pipe.
They are fun to watch operate. Most work on many
sources of BTUs (oils, coal, Wood, peat, dung).
Eck!
Yes. Yes, there were options: ten (10) horses ... ;)
ReplyDeleteInstant torque, and gobs of it!
ReplyDeleteIt takes wild amounts of ICE horsepower to pull the loads these machines pulled without effort.
Look up Steam Tractor at Pickneyville on Utube to see one at full power
The reason it's only nine horsepower is because it operates at very low rpm, maybe 200 rpm. Horsepower is basically torque times RPM, so if you have low RPM, it's going to have low horsepower. So: H = T x rpm/5252,
ReplyDeleteH * 5252 = T * rpm
so at 200 RPM, 9 * 5252 / 200 = 236 ft/lbs of torque.
That's a lot of grunt, even if it isn't a lot of power.