Search found 46 matches

by gitPharm01
Thu Apr 06, 2023 7:19 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] 100W class LTD Stirling engine( Lesson 5-3 )
Replies: 32
Views: 9650

Re: [Translating resource] 100W class LTD Stirling engine( Lesson 5-3 )

The knowledge includes approaches that had been tried and tested. In this course, the professor presented these things and did not hide his failed attempts(in Lesson 5-1). He did not overemphasize the power of simulations and if you read my translation closely you will find out he did NOT use those ...
by gitPharm01
Tue Apr 04, 2023 10:27 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] 100W class LTD Stirling engine( Lesson 5-3 )
Replies: 32
Views: 9650

Re: [Translating resource] 100W class LTD Stirling engine( Lesson 5-3 )

Nothing personal,. I'm all for preserving history but 100 watts from something the size of a refrigerator? A 45 pound displacer? This weed Wacker is over 2 horsepower (more than 1500 watts) and the engine is about the size of a baseball. Need I say more? I think this points up the need for innovati...
by gitPharm01
Tue Apr 04, 2023 6:52 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Stirling cycle machines, appropriate technology and design ideas
Replies: 42
Views: 11095

Re: Stirling cycle machines, appropriate technology and design ideas

A flywheel above the stovepipe with shaft running down the center ? Maybe a shaft passing through an elbow in the pipe? I do like the basic concept of a shared heat source for some kind of multi cylinder engine, with multiple "collector ends" surrounding a central heat source, like a stov...
by gitPharm01
Tue Apr 04, 2023 3:06 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] 100W class LTD Stirling engine( Lesson 5-3 )
Replies: 32
Views: 9650

Re: [Translating resource] 100W class LTD Stirling engine( Lesson 5-3 )

Lesson 5 - 3 Experimental LTD Stirling engine with 100W output: part B There's many detailed drawings of this huge LTD Stirling engine in part B. The professor also reveled materials and other specs of this engine. A research paper is based on this model. You can get full text here: https://www.nmr...
by gitPharm01
Mon Apr 03, 2023 2:21 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] 100W class LTD Stirling engine( Lesson 5-3 )
Replies: 32
Views: 9650

[Translating resource] 100W class LTD Stirling engine( Lesson 5-3 )

Lesson 5 - 3 Experimental LTD Stirling engine with 100W output: part A This is a Stirling engine course translated from Fujio Toda's YouTube channel: https://www.youtube.com/@user-yw7eo3no6m/videos I've covered Lesson 5-1 and 5-2 in this post: https://stirlingengineforum.com/viewtopic.php?f=1&t...
by gitPharm01
Sat Apr 01, 2023 11:55 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] A Japanese Stirling engine course
Replies: 22
Views: 6851

Re: [Translating resource] A Japanese Stirling engine course

It is a propeller type published in 2001. That engine weighs only 20 gram but have 30W output, quite incredible... I must point out that that Dr. Doda mistakenly said 20 gram but it should weight 200 grams. 20 grams is impossible for that size of engine. I found a follow up research done in 2004 by...
by gitPharm01
Sat Apr 01, 2023 9:49 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] A Japanese Stirling engine course
Replies: 22
Views: 6851

Re: [Translating resource] A Japanese Stirling engine course

There is one interesting model which is worthy of mentioning: Stirling engine powered RC plane This is covered in Lesson 4-1 Educational Stirling engine models. It is a propeller type published in 2001. That engine weighs only 20 gram but have 30W output, quite incredible... You can see footage of i...
by gitPharm01
Sat Apr 01, 2023 7:57 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] A Japanese Stirling engine course
Replies: 22
Views: 6851

Re: [Translating resource] A Japanese Stirling engine course

Did he say what temperature it reached as a refrigerator? Especially if we knew the compression/expansion ratio of the engine it would be useful to know the low temperature reached. Unfortunately, he did not provide any detailed data of this experiment. From 49:28 to 50:20, he only mentioned that t...
by gitPharm01
Sat Apr 01, 2023 2:05 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] A Japanese Stirling engine course
Replies: 22
Views: 6851

Re: [Translating resource] A Japanese Stirling engine course

Lesson 5 - 2 100Watt experimental Stirling engine: part F This is the final part of 5-2. A conclusion is made for this experiment and I consider them quite valuable. Previously I got confused by the term "heater" and "heat block". I figured it out in this part. This experimental...
by gitPharm01
Fri Mar 31, 2023 7:53 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] A Japanese Stirling engine course
Replies: 22
Views: 6851

Re: [Translating resource] A Japanese Stirling engine course

Lesson 5 - 2 100Watt experimental Stirling engine: part E Experiment settings for testing this engine is discussed in this part. Measuring engine output is not enough. In order to understand which design is better and why it outperformed others, things like pressure loss and temperature differences...
by gitPharm01
Fri Mar 31, 2023 5:59 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Perpetual Ideas
Replies: 79
Views: 85894

Re: Perpetual Ideas

It's an actual kerosene lamp that uses thermoelectric to light up some additional light bulbs. But seriously? Eleven THOUSAND dollars? That is indeed NOT a reasonable price. There is one thermoelectric-powered camping equipment which somehow has some popularity: Biolite stove The cost is 149.95USD....
by gitPharm01
Thu Mar 30, 2023 9:31 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Three Stirling engine plans with complete part drawings (CNC & glass syringe needed)
Replies: 3
Views: 2344

Re: Three Stirling engine plans with complete part drawings (CNC & glass syringe needed)

Here are some questions I want to ask people who had experience in CNC or Lathe: 1.How much does it cost to make parts for each model? 2.Are these drawings complete enough to make engines shown in the pictures? (I am sorry that I lack basic knowledge in metalworking...) 3.Are these parts difficult t...
by gitPharm01
Thu Mar 30, 2023 7:58 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] A Japanese Stirling engine course
Replies: 22
Views: 6851

Re: [Translating resource] A Japanese Stirling engine course

Lesson 5 - 2 100Watt experimental Stirling engine: part D This part talks about the specification of the engine and its heat block. In order to become compact enough, some modifications were made on the design. The professor also shared his experience on metalworking as a student. (This part is a l...
by gitPharm01
Thu Mar 30, 2023 5:52 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Three Stirling engine plans with complete part drawings (CNC & glass syringe needed)
Replies: 3
Views: 2344

Re: Three Stirling engine plans with complete part drawings (CNC & glass syringe needed)

Downloads from that site were hosted on Yahoo and are no longer available there, but if the site URL's are browsed using the Internet Archive the zip files can still be downloaded from there. Thank you Tom. I have noticed many missing files in that ZIP file list. I'll use Wayback Machine to discove...
by gitPharm01
Wed Mar 29, 2023 9:52 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: [Translating resource] A Japanese Stirling engine course
Replies: 22
Views: 6851

Re: [Translating resource] A Japanese Stirling engine course

Lesson 5 - 2 100Watt experimental Stirling engine: part C This part talks about solving an issue of unbalanced power output from compression and expansion piston. An adequate mechanical part with high precision can make drastic changes on the performance a machine. This part starts from 14:12 to 22...