Stirling engine alpha

Pressurized alpha stirling engine. Balanced Ross yoke linkage.
This is another attempt for making power producing Stirling engine. This model was made for testing fluid power capability. Design costs: 3 monts for design, 4 weeks for welding and mashining, 300$ for laser cutting all sheets. Engine weight is about 30 kg.

To All stirling fans:
In the project I used an Excel table that can be found at www.sesusa.org/GCS2002.xls . I made the engine in rigid correspondence to the table and I got a calculated power output and RPM. It is a Best Result of the engine, not plans or design.

Category:

Science & Technology

Tags:

• stirling
• motor
• hot
• air
• power
• produce

[dalemi666]

Hello, can you explain what is the material of pistons seals and cilinder ??

thank you!

[sasafed1970]

@dalemi666 Piston Sealing is from graphite filled teflon. Cylinders is from mild steel. Not stainless because I do not plan for the engine to run for long period, only for tests. Base of pistons is aluminium, displacer is from mild steel. Stainless is preferred because of less thermal conductivity. Thanks!

[mkashifafzal]

Great work, i think you could have better output if the belt for the generator was a little short and not wobbling that much, it also looked excessively loose on place. I dont know why after such fine machining you did not detail the out put part of your project, ;) Good luck. Keep us all stirling fans updated.Thanks.

[sasafed1970]

@mkashifafzal Thanks. This engine has fully solved its destination. All detailed measurements will be executed on a next model that I worked on. See on the next year :)

[samcoinc]

Hi - have you calcualted the acutal efficency? You have power in and power out..  (as you say - it will never be over 50% - but I bet it is quite lower than that.) - oh 3kw in and 220w = 7.3% (just watched the video again) Still very cool!

thanks

sam

[sasafed1970]

@samcoinc Hi, sam! I have not calculated efficiency and have not measured hot and cold temperature. I made this engine to test some technical solutions and volumes of excangers and regenerator. Also I tested regenerator with fine screen mesh. All precise measurements will be made on a next engine. I think after half of year. Thanks.

[sadlert]

Very nice. One suggestion - you are losing a lot of power in your regenerator!. Try filling the corners of the regenerator with some solid steel cones, so that the air flows into and out of the regenerator like two funnels facing each other. The corners in your regenerator act like dead-space with no air actually flowing there. Dead space steals power from stirling engines. I would not be surprised if you gained more than 5 or 10% power. Thank you for posting, well done!

[ArmanErevancy]

Ребята классно ! Вы молодец, много поработали

над ним. Один совет, если не возражаете...

Большая площадь фланцов и множество стыков

способствуют большей потерии тепла = снижение

КПД и мощности. Желаю успехов )))

[leandrojwfolha]

great job! very good video montage of your engine. I liked the illustrations of how the engine works.

[sasafed1970]

@hdkivela2 Thank you, colleague!