Search found 209 matches

by Trevor
Sat Jun 22, 2019 1:32 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Proposed Air Cooling Tower
Replies: 7
Views: 460

Re: Proposed Air Cooling Tower

Hi Mike and Ian
I would be running the model for a couple of hours. Water evaporation isn't a problem as the bottom tank would be getting topped up as it is being used.
Trev
by Trevor
Sat Jun 22, 2019 12:15 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Robinson Hot Air Engine
Replies: 13
Views: 746

Re: Robinson Hot Air Engine

The pic shows the water pump and gearing for same. I originally had problems with the heater with so much back heat onto the burner and wood work I had to change it dramatically.
by Trevor
Sat Jun 22, 2019 12:03 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Robinson Hot Air Engine
Replies: 13
Views: 746

Re: Robinson Hot Air Engine

Nice one Ian - I made a few changes to the motor and also removed the door. It is now fitted with a water pump and runs extremely well. One good thing it runs at a realistic slow speed and the water cooling works quite well as the only cooling the engine has is the top plate. Here's a pic of it with...
by Trevor
Thu Jun 20, 2019 3:04 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Proposed Air Cooling Tower
Replies: 7
Views: 460

Re: Proposed Air Cooling Tower

I see your point Ian. One of the computer radiators are cheap and seem effective as I have used them before. Possible solution is to mount the radiator up at 300mm high with a box fixed around it with vent holes in the bottom. As the radiator gets hot an airflow should start automatically from below...
by Trevor
Thu Jun 20, 2019 1:09 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Proposed Air Cooling Tower
Replies: 7
Views: 460

Re: Proposed Air Cooling Tower

I was going to use a pump with the model using a tower to cool the water. The more I think of it though, it would have to be 400mm high for it to work as a natural ventilated system. The water at the top would be warm which would get the air flow coming in from the bottom. Feasible I think, However ...
by Trevor
Thu Jun 20, 2019 1:02 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Robinson Hot Air Engine
Replies: 13
Views: 746

Re: Robinson Hot Air Engine

Yep! Should have listened to you Ian - Painted it, and guess what! It would not go no matter how hard I tried :sad: , however I eventually got it finished and operating correctly. Certainly isn't any horse power here, but it does run realistically - didn't need to add water to the cooling as it run ...
by Trevor
Wed Jun 19, 2019 1:52 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Proposed Air Cooling Tower
Replies: 7
Views: 460

Proposed Air Cooling Tower

I am looking at making a cooling tower for one of my hot air model engine. The design will be as below, but I am wondering if anyone out there on the Forum has successfully made something like this that works.
Trev
by Trevor
Mon Jun 17, 2019 2:33 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Robinson Hot Air Engine
Replies: 13
Views: 746

Re: Robinson Hot Air Engine

That's quite a beautiful engine you have made Ian and I do like the radiator. I have just recently brought a computer radiator which suits a small fan and I will be looking forward to using it on a small power house like the one you have built. I must try and contact the two modelers you have mentio...
by Trevor
Mon Jun 17, 2019 4:12 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Ltd engine?
Replies: 4
Views: 289

Re: Ltd engine?

Also Mr Scott, look at Hutch687 on the forum - listed just a couple doen the line
Trev

2 KWh LTD Stirling Engine
by Hutch687 » Fri Jan 27, 2017 4:21 am
by Trevor
Mon Jun 17, 2019 4:03 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Ltd engine?
Replies: 4
Views: 289

Re: Ltd engine?

Yes you can. If you look under utube SunPulse they give you the plans basically for doing it. I would expect it to be costly, especially the heating of the oil and or water. Here is the links - https://www.youtube.com/watch?v=OmgJsjgWpHI - https://www.youtube.com/watch?v=mpBa0ntXANI&feature=share Tr...
by Trevor
Sun Jun 16, 2019 5:41 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Ltd engine?
Replies: 4
Views: 289

Re: Ltd engine?

Hi Mr Scott
The size of an LTD engine you are speaking of would be around 2 to 3 mtrs Diameter. Here is a link for you to have a look at. It is Sunpulse Engine around 1.5kW at Tamera Village.
Trev
by Trevor
Sun Jun 16, 2019 5:17 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Robinson Hot Air Engine
Replies: 13
Views: 746

Re: Robinson Hot Air Engine

The Pictures as finished articles
Trev
by Trevor
Sun Jun 16, 2019 5:15 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Robinson Hot Air Engine
Replies: 13
Views: 746

Re: Robinson Hot Air Engine

Know that feeling Ian (hee hee). Here are some pictures of the finished parts I did. I still need to finish the meths burner and fire box proper. Had to borrow a milling machine from my mate to make water channels in the main block and then screw on a top plate, Whew!!! That was a chore and many scr...
by Trevor
Sat Jun 15, 2019 2:19 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Robinson Hot Air Engine
Replies: 13
Views: 746

Re: Robinson Hot Air Engine

Pretty awesome. Certainly would be nice to have one of those. I made up the displacer and the regenerator and finally got it all together today. I ended up with a 20mm depth displacer and a 20mm stroke. Fired it up and away she went. Pretty good watching the linkage work. I will set up some pics aft...
by Trevor
Thu Jun 13, 2019 5:13 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Robinson Hot Air Engine
Replies: 13
Views: 746

Re: Robinson Hot Air Engine

Thanks Ian. Nice looking engines and I hope mine will look something of the same. I used a small milling machine from a neighbour to make a water channel through the top section and I might as well make a small water cooler on the bottom as well. After a lot of thought, I will go with an internal re...