Stirlingengineforum.com

Not sure what you mean. Either energy is transfered into (or out of) the gas or it isn't. Any isothermal process has no net gain or loss of internal energy, only an energy transfer 'thru' gas. So, your "Adding heat increases internal energy, work decreases internal energy." is not always ...

Temperature equates to internal energy through the following equation: Q=M•Cv•T=U Hey Fool, read this expression out loud and get back to us... Q notation requires extreme care and is usually restricted to a finite value in a relatively 'narrow' expression. I have no problem with common heat usage,...

Adding heat increases internal energy, work decreases internal energy. In reality for transfers to or from a gas, work or heat are just different words to describe a transfer of kinetic energy in or out of the gas. Actually identical on a molecular or atomic level. Fool likes to imagine some signif...

Work is a function of pressure x volume. always Pressure is a function of heat applied to a gas. sometimes But that does not mean that heat converts to work. no direct conversion Work is just a consequence of heat. sometimes, but 'consequence' denotes there are constraints and limits Heat creates p...

"The idea that heat wants to combine with cold, seeks out or finds itself compelled to flow to cold is just Caloric/Carnot theory mythology." Energy has nowhere to go but away from itself. Away from itself is the cold, or cooler. Energy will only stay separated if there are forces keeping...

All three rockets will heat the room equally. Mysteriously then, if the rockets are each placed within their respective piston and cylinder, and the same load differences are applied, the piston engine performing the work of lifting the weight 5ft off the ground will heat the room less? I won't kee...

It seems two horsepower was claimed. Maybe they were Shetland ponies? So when does air get drawn back in? Surely not during expansion, when there will be positive pressure?? Yep, near the end of the expansion stroke (see 1/2 dz lines under fig. 11). Hmmm, I doubt the guy who wrote this article saw ...

staska - here's the hot/cold gamma comparison within same values where both gamma have same PP volume - enjoy

When is air being vented to atmophere by the Wilcox engine? The first half of the compression phase? Yes, but I think first half of the compression piston stroke would be a better description. The output per cycle was likely so low that it required a team of horses to spin up the flywheel prior sta...

So, eff was ~25% before alternator. A table like this tells one story, but a PV would tell another. Considering how much time and moola went into this, I doubt we can expect a stand alone CHP anytime soon. I'm all too familiar will this NASA type of stuff, and currently sitting less than 2 miles fro...

The capillary tube is the "orifice". It's diameter and length must be sized to the pressure difference, and flow rate. Longer and narrower for lower flows and higher pressure drops. Shorter and wider for higher flows an lower pressure drops. Higher pressure drops are needed for higher tem...

At the start of the compression stroke (in a Stirling engine) the working fluid is cooling and contracting and the piston is driven in by atmospheric or buffer pressure. And where is the heat from this "cooling" going ??? Towards the end of the stroke heat and pressure build up suddenly a...

According to an article by Nikola Tesla some of the HEAT passing through a heat engine is CONVERTED into some other form of energy (mechanical motion, momentum etc.) and so never reaches the "sink". He envisioned that given a heat engine running on Ambient heat with great enough efficienc...

caught it prior edit...Your a bigger blowhard than "fool". AC units are fairly cheap these days, except for electricity. When I lived in Phoenix (early 1960s), the population was small and most people had swamp coolers and they worked great. However, as the population exploded, all the law...

According to Tesla's theory... If we first ran the Peltier module to cool the bottom plate. (Keeping it insulated of course, to preserve the cold). The engine could then run on the surrounding ambient heat, and with perfect insulation and a 100% efficient engine, it could run indefinitely. He recog...