Many thanks for your encouraging comment!

@@myengines2443 Have you tried experimenting with catalytic combustion of gas in a mesh of copper wire?

Thanks, nice to hear from you too.

Thanks, nice to hear from you too.

@@myengines2443 🔴 What Is Islam? 🔴 Islam is not just another religion. 🔵 It is the same message preached by Moses, Jesus and Abraham. 🔴 Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God. 🔵 It reminds us that since God created us, no one should be worshipped except God alone. 🔴 It also teaches that God is nothing like a human being or like anything that we can imagine. 🌍 The concept of God is summarized in the Quran as: 📖 { “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4) 📚 🔴 Becoming a Muslim is not turning your back to Jesus. 🔵 Rather it’s going back to the original teachings of Jesus and obeying him.

Thanks, nice to hear from you again.

Thanksfor the nice comment , I wish I could see one of these beautiful engines also.

Many thanks for your kind words

Thanks!

Hi Viper, I do lubricate the gears with a little bit (in earlier times a little bit more) adhesive grease. But too much can contaminate the heat exchangers and increase the risk of diesel effects which cause a lethal explosion.

@@myengines2443 I see, thank you for the explanation. Looking forward to your next update, as always!

As I have to wait for some parts to go on I will just start the next video describing the details of the engine. Thanks for the nice comment.

Thanks, I had a lot of other projects in the last years and nice to hear from you too.

Thank you for the nice comment, you are an inspiring role model for me

thanks

Thanks!

Yes, you are right but the way they move provides the best volume variations for the Stirling engine cycle. If it is more efficient to move the way you describe is surely worth an investigation. Thanks for your hint I will examine this.

Thanks, nice to hear from you again.

Thanks, keep up your good work, its very interesting.

Thanks

Nice that you want to build a Stirling also. I hope I find the files and search for some free webspace. Give me a few days and I will post the link here.

Hi, I uploaded some Files of the half rhombic drive to a free webspace. When I find more files I will add them. Here is the link: www.mediafire.com/folder/i564pwe49lhod/Half_Rhombic_Drive I hope you can use them.

Yes at this test phase I am using propane but later I will use self-made biogas as you can see in an older Video. We have also much wood and this will even work in any case, if you turn it into wood gas.

Going to use a rocket stove type design for wood heat?

@@artdeco7729 maybe, haven't decided yet. The plan was to integrate a Stirling engine to a central-heating furnace. But maybe a standalone generator would be simpler

Thanks

Thanks, the engine is still in development and it will still take some time to bring it to final status.

@@myengines2443 Bro, the most important work has already been done, the concept is working, don't delay it. So many good things remained only in the hands of the master... just because he couldn't achieve capitalist success. It seems to me that this is not how it should be arranged.

I actually just bought a 130mm (weights 18 kg) diameter block of 1.4571 stainless steel for a bigger version of the rhombic. When I dont't find a better concept I will build. But it is very much work and will take month of hard work which will push my machines the its limits. The theoretical performance will be much larger as it raises with the swept volume when I can design the heat exchangers accordingly. So the bigger bore will lead to 4 to 8 times the power if done right. Unfourtunately the pistons have to run dry and I am always searching for better material pairings but still have quit good ones I think (cast iron/ss and Igus W300 tribological plastic)

@@myengines2443 I see! I found that your size of engine was already impressively efficient. I have observed other designes that were easily 50% larger that only attained 300 watts. In your case, you already have an impressive engine at its current scale. How come the piston must run dry (asking for my own education)? It makes perfect sense that you would have low service life as a result. Could you try to attempt dry-lubricant coatings (graphite / molybdenum)? Thank you for your answers. I am learning a great deal.

No, I want to power the Stirling engine with self generated biogas (see an older Video for this) and then charge the lithium battery of our solar system when the sun is not shining in the winter.

​@@myengines2443 Thanks for answering :) Thought it might have been that but heard solar too so wasn't sure. BioGas + EV + LiBattery, got it.

At max power Tc=50 C and Th=600 C so delta T is about 550 C. In the Video I am just running in the engine with much lower Tc of maybe 400-500 C I did not measure it. Greetings

Firstly I build it for our own energy production but if I can develop it to a powerful and reliable engine maybe I will sell them. But this is still a long way as the price would be far to high at the moment.

I think COP is the factor electricity to generated heat of a heat pump? If u mean the efficiency of chemical energy of the Fuel to generated electrical energy this is something I will do in this comparison test. Where you cant expect too much for such a small generator.

@@myengines2443 electrical power to fuel consumption would be great, as it would do the coefficient of performance of the whole system. Butane is roughly 50Mj/kg which is /3.6Mj per kWh is 13kWh of heat per kg. So if it is 300W power and consumes say 200g of fuel per hour = 300/2600 = 11.5% COP of the system as a whole.

Maybe when I developed it to my satisfaction in a small series or as an unique piece when I settle to an other configuration. But both possibilities will still take a long time of development I think... In each case the price won't be a bargain.

Thanks

I made some experiments with helium but I have to try there a bit more

CO2 will have worse perfomance than air as it has larger and so less mobile average molecule. The best performance will be with gases with small molecule, eg Hydrogen or Helium.

You are right, the Ringbom engine is a very interesting configuration and I studied it a lot. But optimization seems to be very difficult along with other problems. Maybe one day I will experiment wit it, thanks for your hint.

@@myengines2443 Yes, it is even more difficult to get right.

The engine is still in development and far away from being ready for serial production. And in sigle piece production it is far to expensive... Greetings