Stirlingengineforum.com

Ahhhh.... Stroller beat me to it. LOL Regarding the copper verses steel block, I assume it is a weight difference. Just remember moving the displacer up and down is a temperature difference. Although both would move, I would think there would be a difference. I don't know how much. Pressure would be...

If the starting pressure at 300k and 100cc was 1atm + the added pressure of the 102g piston, it would be a basic pv=nrt calc. But if the temperature of 100cc at 300k and just 14.7psi is doubled to 600k, any additional weight will no longer allow expansion to 200cc. The only way to continue expansio...

The end of the compression stroke and beginning of the expansion stroke is where the displacer is moving away from the hot side pushing the gas to the hot side through the regenerator away from the cold side at the highest rate. The piston is at the top of its travel and is moving at its slowest rat...

Heat is not internal energy. To imply that the two are the same, as you often do, is misleading. To claim gases contract, as you do, is misleading. A Stirling engine has to concentrate heat by other means, certainly not by heat being "rejected to the cold plate". Especially considering at ...

Orifice=expansion valve=properly designed capillary tube=manually adjusted valve=needle valve All of which are missing. If you expect someone to believe that a short tiny length of not much smaller diameter tubing in a system with a tiny pump is equivalent to an orifice, please show us the numbers. ...

The "lost" kinetic energy is converted into heat. What is less misleading? 1: The "lost" kinetic energy is converted into heat. 2: The "lost" kinetic energy is converted into internal energy as seen by a temperature and pressure rise in the gas. Or are you implying tha...

A turbo charged diesel engine uses an intercooler between the compressor and intake to the cylinder. Pretty sure Tom was talking heat of compression, the very basis of diesel ignition. Turbocharging and intercooling diesels has improved them to the point where they can be an effective automobile en...

The name calling is against forum rules. Please stop. Main Board Rules: General Rules A) Please treat everyone with respect. If you have a point, then make it. Driving it on and on will not be tolerated. You post to nearly all the threads, and you drive in over and over the same anti Carnot and educ...

I'm going to tell you a little secret. Your opinions here aren't better than anyone else's. Eliminating people out of disrespect or administrator interaction is not helping this site. Just remember that other people being wrong is no reason to disrespect them. Your actions here are very disrespectfu...

... When you have those two values, work out .. blah blah blah... We will reconsider your temperature anomaly. ... I could care less what you or "we" consider or don't consider. Your concerns are not my concerns. Do your own experiments. Seems like you have nothing better to do than gawk ...

Towards the end of the Stirling's compression stroke the displacer is moving the gas to the hot side, and the regenerator is heating the gas. Your description is misleading.

A turbo charged diesel engine uses an intercooler between the compressor and intake to the cylinder.

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 temp...

Tom, how about some simple old world math where eff = output/input as in simply measure work out vs heat in ? No waterfall, tug o' war, or calculus req'd... I think we've already discussed a number of perceived problems in doing that. How to get a verifiably accurate measurement of heat "in&qu...

Another thing I think happens is on the return stroke the air in the cylinder is compressed, maybe not to the extent that air is compressed in a fire piston, but the principle is the same. https://youtu.be/-39wmSBO2FM It seems strange that you have ignored that fact and are now attempting to conjur...