2 Stroke Marine Diesel Engine MAN B&W: Operating Principle (Every engineer must see this)

2 stroke marine diesel engine: detailed explanation of operation and principle behind working. Indicator cards: Draw cards and power cards, explanation of various terms associated and related calculations. Principle behind fuel pumps and a lot more..

Comments

1. Can the same sort of efficiency be achieved with much smaller two stroke diesels?
2. tnx
3. Looks like MAN re-made the video in 2015. Updated footage, a british voice, but the same script! The fundementals don't change!
4. Awesome! Thank you. Funny how antiquated piston crank design is but still 40% efficient. שלום
5. Anybody know the size of this engine? Or model?
6. Those sound effects!
7. [P L A N K] PRESSURE X LENGTH X AREA X NO, CYL X RPM X 1/2 --4 STROKE
   =HP
8. Nice one
9. Good stuff, knowledge gained and locked into memory. Excellent vid!
10. The cameraman and the editor are geniuses. That rythm of parts and speeding up... I felt myself near to the engine. Thanks! This is movie! ☺
11. This is a must see movie !
12. Mmmmm a symphony in Diesel - wonderful.
13. There is something intoxicating about seeing a piston moving and reciprocating in a simple harmonic motion. I would say there is no other movement which would accelerate a piston from zero to a maximum velocity and retard it once again which is as efficient and as smooth as a simple harmonic motion. I suppose when the piston goes rises above the air intake skewed apertures the air will make its way to the underside of the piston and then it will be returned to the air intake unit when the piston goes down, which is not shown by the animated features. The water cooling through that piston rod necessitates the use of the technology used in a sliding trombone!
    You know to think that we are looking at a connected logic which the human mind did not know about since 1750. Since 10,000 BC to 1650 AD all the philosophers had no idea of such logic and all those years were brewing a mind which in 1650 Richard Harrison produced the first wooden clock, with an escapement wheel and a pendulum. For inertia reasons, the escapement wheel had to have a low inertia of rotation while the pendulum had to have a high inertia for good engineering reasons. The human mind can only build on previous knowledge and it took a 100 years till 1750 looking and observing the clock to conclude that if one made a heavy escapement wheel connected to a light piston , then instead of the escapement wheel driving the pendulum one could have a system where the pendulum as a piston would drive the heavy escapement wheel to be called a flywheel.
    I find it fascinating how the logic of the clock was what triggered the human mind to see the beauty of the silent logic in different shaped components synchronised together to form a more complex function where every contribution had to be right and guaranteed.
    
    I feel it is the ability to guarantee that different components will work together that actually gave rise to human ethics and social order. Before 1650 say 1550 the sensitivity of humans to pain was not so developed and up to then where the Romans enjoyed going to the Coluseums to see people getting killed, up to 1550 the Holy wars were still as horrendous about social ethics as they were a millenium before. Yes I do feel that the escapement wheel driving the pendulum was what triggered the human mind to get a piston to drive a flywheel and the crank was the most delightful manner in which to do it.
    
    In this film, I am reluctant to mention that the heavy moving parts moving the exhaust valve are pretty heavy and need a lot of power to accelerate them, and nowadays they use flexible hydraulic link to do that. I also appreciate the hidden wonders of the modern jet engines where compression rations of 50:1 is possible with multiple blades rather than a well fitting piston in a cylinder. But as an old man , the spectacle of a simple harmonic motion in the heart of a ship give it a life that is almost human as the human mind can easily keep up with it , understanding its rhythm and also feel its warmth. I feel this explains why so many men in the old days loved their cars and their steam engines and their diesel as they had life in them and a sensitive engineer would not want any machine to feel any pain!!! I am sure many old engineers above 75 feel like I do. Efficiency is good, but the warmth of being with a gentle giant of an engine is good company!!
14. From when does this film date?
15. This video is ancient, low video resolution and has rather cheesy sound effects, but it still offers an excellent explanation of all the major engine parts, actions and thermodynamics. Therefore this video remains relevant to this day. Modern engines of this type have improved thermal efficiency, now at about 50 percent. https://youtu.be/3n9UGc2noE4
16. I think; that Simba and Samoa were the first ingine with turbo, but can be wrong.
17. I was onboard in the sistership MS SAMOA 1953 quite new on her first trip to Australia.
18. the letter Δ ACTUALLY is not pronaounced ''d'' but ''th'' like the words '' there ''the'' etc
19. Holy MATH Batman !! Here I thought they just threw together what should work... Just kidding...
20. Note that the ingier uses metric calculations.