I'm told the steam engine is the most mechanically efficient engine ever made

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finite automaton

Golden Member
Apr 30, 2008
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Originally posted by: geno
Watch this to see why living with a steam engine won't work for everyday use. It takes too much prep time to get up and running.

This is also a great vid for anyone who's unfamiliar with steam engines.

I enjoyed that, thanks.
 

Mucho

Guest
Oct 20, 2001
8,231
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Originally posted by: geno
Watch this to see why living with a steam engine won't work for everyday use. It takes too much prep time to get up and running.

This is also a great vid for anyone who's unfamiliar with steam engines.

Thats an amazing video,
 

FlashG

Platinum Member
Dec 23, 1999
2,709
2
0
Originally posted by: geno
Watch this to see why living with a steam engine won't work for everyday use. It takes too much prep time to get up and running.

This is also a great vid for anyone who's unfamiliar with steam engines.

That was a sweet vid!

 

preslove

Lifer
Sep 10, 2003
16,754
64
91
Originally posted by: geno
Watch this to see why living with a steam engine won't work for everyday use. It takes too much prep time to get up and running.

This is also a great vid for anyone who's unfamiliar with steam engines.

Every time I see Lenno's car site I think that he really needs to turn it into a cable tv show once he retires from the tonight show. Especially because the tonight show sucks!
 
Sep 12, 2004
16,852
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Originally posted by: sdifox
wtf, steam engine is not efficient...
I think the key word that people are overlooking is "mechanically." For energy efficiency a steam engine is far from the best. For mechanical efficiency it's hard to beat simply because of its simplicity.
 

DrPizza

Administrator Elite Member Goat Whisperer
Mar 5, 2001
49,601
167
111
www.slatebrookfarm.com
Originally posted by: JohnOfSheffield
Originally posted by: bobross419
Couldn't you just store up methane... maybe by a clever adapter in your car seat and power it off of the burnt gas?

Hydrogen is a better alternative and it's been in production for a few years by now, we need better production methods and storage for it though.

The Hindenburg somehow still lingers in the minds of some idiots.

JoS, it's been pointed out to you multiple times that hydrogen is NOT a energy source. It's not an "alternative" but rather is a storage and transportation medium. If you're burning fossil fuels for the energy used to obtain the hydrogen (and the majority of electricity in the U.S. comes from burning fossil fuels), then you're actually making the problem worse.
 

Raduque

Lifer
Aug 22, 2004
13,140
138
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Originally posted by: 91TTZ
Originally posted by: enwar3
The engine can reach speeds high enough for today's use, can accelerate and decelerate much faster than gasoline engines in cars today, and can burn something plentiful like kerosene.

He also told me the only reason the steam engine hasn't taken off is because 1. oil companies and 2. you have to carry fuel.

So is the steam engine a good idea? Or do I have some facts wrong?

You have some facts wrong. They do not put out much power compared to gasoline engines of the same size and they don't accelerate and decelerate nearly as fast as gasoline engines.

You must have missed the Jay Leno Stanley Steamer video just above your post, where he SHOWS you how fast it accelerates, and explains how he takes it on the freeway and it'll do 60-65mph all day long. He said it has something like 700lb-ft of torque, and it's direct drive so you just open the throttle as fast as you want the car to go.

And that car's 100 years old. Imagine what we could do with today's technology. Butane auto-lighting systems, automatic electric pressurizers, possibilities to modernize steam powered cars are endless.
 

So

Lifer
Jul 2, 2001
25,923
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Originally posted by: Raduque
Originally posted by: 91TTZ
Originally posted by: enwar3
The engine can reach speeds high enough for today's use, can accelerate and decelerate much faster than gasoline engines in cars today, and can burn something plentiful like kerosene.

He also told me the only reason the steam engine hasn't taken off is because 1. oil companies and 2. you have to carry fuel.

So is the steam engine a good idea? Or do I have some facts wrong?

You have some facts wrong. They do not put out much power compared to gasoline engines of the same size and they don't accelerate and decelerate nearly as fast as gasoline engines.

You must have missed the Jay Leno Stanley Steamer video just above your post, where he SHOWS you how fast it accelerates, and explains how he takes it on the freeway and it'll do 60-65mph all day long. He said it has something like 700lb-ft of torque, and it's direct drive so you just open the throttle as fast as you want the car to go.

And that car's 100 years old. Imagine what we could do with today's technology. Butane auto-lighting systems, automatic electric pressurizers, possibilities to modernize steam powered cars are endless.

And you still have to wait a half an hour to start you car and get a head of steam up.

The internal combustion engine has an awesome power to weight ratio. Power plants still use steam turbines which I guarantee are more efficient.
 

zinfamous

No Lifer
Jul 12, 2006
111,860
31,346
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Originally posted by: finite automaton
Originally posted by: geno
Watch this to see why living with a steam engine won't work for everyday use. It takes too much prep time to get up and running.

This is also a great vid for anyone who's unfamiliar with steam engines.

I enjoyed that, thanks.

ditto.
:beer:
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
What? I haven't read the thread, but that's nonsense.

Well.. It's going to vary a lot by your method of getting steam, I suppose. Also, do you mean stem engine or steam turbine?

There is no way that a normal 19th century steam piston engine is as efficient as a modern diesel engine. Not even a modern gasoline engine.

Besides, even if it were 100% efficient.. there's the whole practicality issue. To say the least. Basically, you want to drive around on a bomb. Would bring a whole new meaning to the car accident. Any breach of the boiler and you would be poached.

It would take an incredible amount of energy to supply enough steam to be able to propel a car forward. Where would that come from? Would we all have to carry a trailer of coal?

:laugh:
 

So

Lifer
Jul 2, 2001
25,923
17
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Originally posted by: Eli
What? I haven't read the thread, but that's nonsense.

Well.. It's going to vary a lot by your method of getting steam, I suppose. Also, do you mean stem engine or steam turbine?

There is no way that a normal 19th century steam piston engine is as efficient as a modern diesel engine. Not even a modern gasoline engine.

Besides, even if it were 100% efficient.. there's the whole practicality issue. To say the least. Basically, you want to drive around on a bomb. Would bring a whole new meaning to the car accident. Any breach of the boiler and you would be poached.

It would take an incredible amount of energy to supply enough steam to be able to propel a car forward. Where would that come from? Would we all have to carry a trailer of coal?

:laugh:

I want my ford nucleon, damnit!
 

sdifox

No Lifer
Sep 30, 2005
100,265
17,901
126
Originally posted by: TastesLikeChicken
Originally posted by: sdifox
wtf, steam engine is not efficient...
I think the key word that people are overlooking is "mechanically." For energy efficiency a steam engine is far from the best. For mechanical efficiency it's hard to beat simply because of its simplicity.

turbine beats piston any day of the week in terms of power conversion.
 

Fritzo

Lifer
Jan 3, 2001
41,920
2,161
126
LOL- I can imagine someone with one of those beach sand shovels adding coal to their glove compartment while on the highway...
 
Sep 12, 2004
16,852
59
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Originally posted by: sdifox
Originally posted by: TastesLikeChicken
Originally posted by: sdifox
wtf, steam engine is not efficient...
I think the key word that people are overlooking is "mechanically." For energy efficiency a steam engine is far from the best. For mechanical efficiency it's hard to beat simply because of its simplicity.

turbine beats piston any day of the week in terms of power conversion.
Only at high RPMs. A steam piston engine will kick the snot out of a turbine at low RPMs. That's why steam turbines were never really adapted for use in cars, trucks, or trains. Makes no sense to have a turbine spinning at thousands of RPMs while you're idling or going slow and you end up losing mechanical efficiency through the gearing/transmission that would be required.
 

Ruptga

Lifer
Aug 3, 2006
10,246
207
106
Originally posted by: Lonyo
We used to use steam engines on trains, then switched to diesel and then electric.
See a pattern?

actually the electric ones still burn diesel, but use electric motors for the actual locomotion. Apparantly it's more efficient to do it that way because electric motors give better torque, etc
 
Jul 10, 2007
12,041
3
0
Originally posted by: 91TTZ
Originally posted by: enwar3
The engine can reach speeds high enough for today's use, can accelerate and decelerate much faster than gasoline engines in cars today, and can burn something plentiful like kerosene.

He also told me the only reason the steam engine hasn't taken off is because 1. oil companies and 2. you have to carry fuel.

So is the steam engine a good idea? Or do I have some facts wrong?

You have some facts wrong. They do not put out much power compared to gasoline engines of the same size and they don't accelerate and decelerate nearly as fast as gasoline engines.




yeah, i questioned that when i read it too, but i wasn't sure.
 

finite automaton

Golden Member
Apr 30, 2008
1,226
0
0
Originally posted by: BlahBlahYouToo
Originally posted by: 91TTZ
Originally posted by: enwar3
The engine can reach speeds high enough for today's use, can accelerate and decelerate much faster than gasoline engines in cars today, and can burn something plentiful like kerosene.

He also told me the only reason the steam engine hasn't taken off is because 1. oil companies and 2. you have to carry fuel.

So is the steam engine a good idea? Or do I have some facts wrong?

You have some facts wrong. They do not put out much power compared to gasoline engines of the same size and they don't accelerate and decelerate nearly as fast as gasoline engines.




yeah, i questioned that when i read it too, but i wasn't sure.


Obviously neither of you watched the video. Leno's car only has 20HP, but it has "700-800" ft/lbs of torque, and does 65mph at ~350rpmile. Not bad for a car that is 100 years old.
 

sdifox

No Lifer
Sep 30, 2005
100,265
17,901
126
Originally posted by: TastesLikeChicken
Originally posted by: sdifox
Originally posted by: TastesLikeChicken
Originally posted by: sdifox
wtf, steam engine is not efficient...
I think the key word that people are overlooking is "mechanically." For energy efficiency a steam engine is far from the best. For mechanical efficiency it's hard to beat simply because of its simplicity.

turbine beats piston any day of the week in terms of power conversion.
Only at high RPMs. A steam piston engine will kick the snot out of a turbine at low RPMs. That's why steam turbines were never really adapted for use in cars, trucks, or trains. Makes no sense to have a turbine spinning at thousands of RPMs while you're idling or going slow and you end up losing mechanical efficiency through the gearing/transmission that would be required.

We were talking about steam piston engine efficiency and not practical adaptation to automotive propulsion.