If you have even the slightest inclination for mechanical things, you should visit. The biggest draw is, of course, the massive 3-story diesel engine that is operated two Sundays a month.
The explanations before the engine start are in Danish, so if you want to know the details, you'll have to read online beforehand. Because the engine is so large, it actually blocks your view of its moving parts. The two places with good views are the second story mezzanine directly facing the engine. Or, go all the way up to the fourth floor museum exhibit, and you'll get a clear view of the moving exhaust vales. Although from the fourth floor, you won't be able to hear the explanations or the engine, but you're also protected from the diesel fumes. Come at 10:30 for the 11 am start, as it's surprisingly popular and the viewing area is cramped.
The museum itself presents a detailed history of the diesel engine and its role in Danish commerce, especially shipping (not surprisingly, naval themes are popular in Danish museums). But even more interesting are the working collection of model engines. Each one is beautifully made and wonderful to look at. Push a button and they move, with lights to show you when combustion takes place. read more