Steam vs. Diesel Who would Win

About ten years ago U of M did some research on steam and found it was not practical to make a new steamer. You may as will ask why not use a horse to replace a car. I love steam but it is not coming back.
 
From Southern Railway by Tom Murray
In August 1940, a significant event occurred in the dieselization of Southern Railway [first class 1 to fully dieselize] when EMC's first road freight diesel, the FT, arrived on the railroad for a series of demonstration runs. The four-unit, 5400-horsepower set, operating as Electro-Motive 103, was given the task of hauling tonnage between Cincinnati and Chattanooga. Most of the railroad's attention was focused on how the new diesel would do over the most demanding section of the CNO&TP, between Danville, Kentucky, and Oakdale, Tennessee [the Rathole] where a [single Ms-4 Heavy] 2-8-2 Mikado was rated for 1,750 tons. Paul K. Withers, in Diesels of the Southern Railway 1939-1982, writes,
The FT Demonstrator handled 4,000 tons over the entire division and sliced an hour off the normal run.

Southern was so impressed the bought the demonstrator set and several more sets until 1945. The Southern was completely dieselized by 1953 and would have earlier if it weren't for WWII. The last steam train on the Southern was on Wednesday, June 16, 1953, hauled by Southern (CNO&TP) Ms-4 6330 from Cincinnati to Chattanooga. (Ironically the same route the first diesel freights on the Southern took)

laststeam.jpg
 
As was said earlier, it is difficult to compare a steam locomotive to a diesel electric locomotive. I do how ever have some anecdotal evidence from a tourist railroad here in Maine. On the same grade with similar trains at similar speeds, I can tell you what the control settings were for a GE 70 ton switcher (#54) and a SJ (Statens Järnvägar) class B 4-6-0 (#1149). On #54 the throttle would be set at notch 5 or 6, while on #1149 the cut-off would be set at 40% and the throttle approximately 1/3 open (boiler pressure approximately 10 - 11.5 kg/sq cm) . However on occasion the engineers would slow to a crawl at the bottom of the grade and open the throttle as much as reasonably possible (or they dared). As long as it was still moving #1149 would out accelerate #54. On the other hand from a dead stop #54 was far better.

Again this is a bit like comparing apples to oranges, as the two locomotives differ significantly. In weight #1149 is about double the weight of #54, 140 tons to 71.5 tons. In their approximate tractive efforts it is #54 tat comes out ahead with 43,000 lbs. as opposed to #1149's 27,500 lbs (SJ figures). In terms of horsepower it was calculated that #1149 had double that of #54's 600hp.


 
Technically, nuclear powerplants use steam to turn the turbine generators to produce electricity. Not positive but, I believe nuclear subs also use steam to drive the props. So why not a nuclear powered steam engine?
 
i think people would be a little uneasy having a rolling nuclear bomb in there city plus how would you keep it from being captured and being detonated in a city by a terrorist
and on the subject of is steam better than Diesel lets call in the mythbusters :hehe:
 
I didn't think such an obvious joke required a smiley. Electric rail systems powered by nuclear powerplants are clearly the most ecologically responsible option over either diesel or steam.

For the record: nuclear reactor does not equal nuclear weapon. Reactor fuel requires considerable processing to become weapons grade. Reactors are designed to damp out by fully inserting control rods in the absence of other instructions (gravity is a wonderful thing).

Oh, and NIMBY is one reason we are still reliant on Middle East oil despite the fact that the worst nuclear power accident in the US didn't read above background.
 
still it mite not be weapons grade but can still kill people and nuclear pawer plants employ privet armed guards armed with m-4 and gloc 9's and there are hundreds of security check points plus if they don't know you very well you get an armed escort
 
Both the United States and the Union of Soviet Socialist Republics at one time looked at nuclear powered locomotives. In both cases it didn't really get out of the design stage due to technical problems.
 
No one could make a nuclear power plant small and light enough to run on rails.
The whole steam electric thing was settled 100 years ago, steam lost badly on every thing but cost of infrastructure.
 
Some electrified locos still run on coal but many now are nuclear.
By the way, I just saw a video on how to drive the ex SP 2472 1921 vintage 2-6-4 Pacific. It claims that it only has half power when starting and is maximum at 40-45 mph. It was set for a maximum cruising speed of 75 mph. By watching the video I hope to figure out how to operate Trainz steam from the cab.
 
More like maintainence and efficiency. A steamer is an external combustion engine - a diesel is an internal combustion engine. Far more efficient...(but I still say bring em back, lol).
Ben

Excellent point, Ben. Alas, it all boils down to :)hehe: ) that fact. The internal combustion engine is simply a more efficient heat engine than the external combustion engine. Yeah...bring 'em back anyway...:D

Cheers,
Fred

P.S. I've been reading a very good book on the subject..."Perfecting the American Steam Locomotive" by J. Parker Lamb. Recommended...
 
In regards to the size of neuclear power plants, anyone heard of the deep sea research vessel, NR1

From this site, http://web.archive.org/web/20030429014652/www.chinfo.navy.mil/navpalib/factfile/ships/ship-nr1.html

Name: Deep Submergence Vessel NR-1
Builder: General Dynamics Electric Boat
Laid down: 10 June 1967
Launched: 25 January 1969
In service: 27 October 1969
Out of service: 21 November 2008
Primary Function: Deep submergence research and engineering vehicle
Class: no class; this is a one-of-a-kind ship
Power Plant: One nuclear reactor, one turbo-alternator; Two motors (external), two propellers, Four ducted thrusters (two horizontal, two vertical)
Length: 150 feet (45.72 meters)
Displacement: 400 tons (406.42 metric tons)
Diameter: 12 feet (4.18 meters)
Maximum Operating Depth: 2,375 feet (724 meters)
Crew: 2 officer, 3 enlisted, 2 scientists
Armament: None
---------

I can't find out what the power output was but you can work out that it was plenty to power a train,
14,000 watts of outside lights :cool:
enough heating while working in below freezing depths
running the air scrubber and air curculation
running a desalination plant
all the scientific equipment and sonars
etc etc etc
and I did find this little bit on the needs of the sub while moored, " Capability to provide electrical power to the NR-1 while the NR-1 is moored alongside (3 phase, 440volts, 60Hz, 100 amperes) "
I couldn't find the size of the reactor itself but it fits in the 12 feet diameter of the sub.

And all this is over 40 year old technology :hehe:

Cheers David
 
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About ten years ago U of M did some research on steam and found it was not practical to make a new steamer. You may as will ask why not use a horse to replace a car. I love steam but it is not coming back.
U of M as in univercity of minnisota?
 
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