Comments on: Mythbusters Blackpowder Engine Challenge

By: RetardedKidOnSugar

RetardedKidOnSugar — Tue, 09 Feb 2010 02:37:47 +0000

yes its a bad idea to make more then 1-2 grams of it

By: survivalhelper

survivalhelper — Tue, 09 Feb 2010 02:36:42 +0000

Gupnup, I have a perfect working knowledge of the engineering behind any engine, sadly this still is not an engine that is any different from a steam engine. Tell me, where does the combustion on a steam engine occur? Outside. Where and how is the power transmitted to the crankshaft? Via an internal piston driven by the pressure created OUTSIDE. Its not rocket science, it is a steam engine that runs off the black powder propellant burning outside. Its like saying coal runs a steam engine.

By: survivalhelper

survivalhelper — Tue, 09 Feb 2010 02:14:45 +0000

What I am saying is if you take a steam engine (which the maker of the video ADMITS) and you modify it to run on a scuba tank of oxygen, its not an oxygen engine, if it uses black powder, or nitrogen, or etc. IT IS STILL A STEAM ENGINE, THE DESIGN IS THE SAME YOUR ONLY CHANGING WHAT GIVES IT THE PRESSURE. Run a Briggs and Stratton on that fuel log, let me know how it works. What do you mean it doesn’t work? Maybe its because this engine is a steam engine running black powder for pressure? Nice !

By: pyrogeniuses

pyrogeniuses — Tue, 09 Feb 2010 02:03:21 +0000

no its .2 grams of it,2 grams would be so powerful youd kill youself igniting that with your face 1 ft to the side of it

By: roguespear91

roguespear91 — Tue, 09 Feb 2010 01:39:15 +0000

Dear God No.

By: CharlieMacklin1

CharlieMacklin1 — Tue, 09 Feb 2010 01:18:42 +0000

The black powder log is NOT OUTSIDE the system. Yes it is a “steam” engine, but in this configuration, combustion gases enter the cylinder (not steam), thus making it “internal”. Contact me for a sketch if you want.

Think of the expansion chamber/pressure vessel as a continuation of the cylinder.

If “internal” requires that actual flames hit the top of the piston, then I can build that kind of black powder engine. How about running a 2-cyl chainsaw engine on BP ? Challenge me.

By: survivalhelper

survivalhelper — Tue, 09 Feb 2010 00:37:57 +0000

Just because the combustion gas (BYPRODUCTS OF COMBUSTION) enter the cylinder does not make it an internal combustion engine.
I don’t have to think of the expansion chamber as an extension of the combustion chamber, it isn’t. Just like an intake manifold isn’t an extension of the combustion chamber.
Here is “the test” make ANY internal combustion engine run B/P and it in tern drives the motor for either 2 or 4 cycles. Try again, I don’t need a sketch, pressure engines have been around for eons

By: superfunnyman123

superfunnyman123 — Mon, 08 Feb 2010 23:39:06 +0000

ok now black pouder doesnt run this engine, all as your doing is using a black pouder log to !HEAT! your !FULE! witch is water/steam. you could just as well heat it on your stove or wood ect. to run the steam engine.

By: CharlieMacklin1

CharlieMacklin1 — Mon, 08 Feb 2010 23:22:24 +0000

NO !

There is no “water” or “steam” in the system. Only the hot gases produced by the burning black powder log.

There is no heat exchanger.

The system is open loop.

By: dellto529

dellto529 — Mon, 08 Feb 2010 23:03:42 +0000

When black powder is burned (combusted) it produces gases
(CO2, SO2, etc.) and solid pariculate matter (smoke). These gases are what drove the piston and produced motion. There was no visible smoke because the engine and internal filter trapped it.

BTW, it’s spelled powder, not “pouder” and it’s fuel not “fule”. Also, you should capitalize the first letter of a word that begins a sentence. Makes you look smart.

But then, you’re a comedian, right?