"Hi...We are new here!" First posts here (or anywhere is OK)

Discussion on Stirling or "hot air" engines (all types)
skyfridge
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Joined: Tue Nov 11, 2014 10:49 pm
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Re: "Hi" We are new here!

Post by skyfridge » Wed Nov 12, 2014 9:14 am

I'm here. I live off the grid and am looking for sustainable ways to git 'er done. We have a 200W solar array with a 12V 300(?)Ah deep cycle battery bank. It's not much, but it works for us.

I've been looking for a sustainable refrigeration solution that doesn't involve a consumable resource. I've done the math re radiative cooling, and I'm convinced that it will work. I just don't have enough practice with the table saw, so the prototype is a work in progress. For now, we have an icebox, but hauling ice over 8 miles of dirt road is getting old.

Ian S C
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Location: New Zealand

Re: "Hi" We are new here!

Post by Ian S C » Thu Nov 13, 2014 1:52 am

skyfridge, I read somewhere of someone running a refrigeration unit from a wind turbine. Ian S C

skyfridge
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Re: "Hi" We are new here!

Post by skyfridge » Thu Nov 13, 2014 4:53 am

Ian S C wrote:skyfridge, I read somewhere of someone running a refrigeration unit from a wind turbine. Ian S C
Thanks, Ian. I guess I didn't finish the thought. I'm going to find a way to finish this prototype, and I am confident that it will work.

It is often very windy here. Someone in town told me that annually the airport records winds of 80mph. Some of the neighbors have turbines, in addition to solar. The local cattle ranchers have a windmill up the road to pump water, and the wind bent the blades. Now, they use solar.

Wind, solar or propane for refrigeration is pricey. Of course, they make DC fridges that are more efficient and more geared for renewable energy systems, but as I recall you're still talking an additional 400W in solar panels and the additional battery capacity. When we add on to the power capacity, Amy wants to use her coffee machine. (Yikes!)

Completely passive refrigeration would fit better into our energy budget. No fuel, no electricity and no external heat source. Just one big heat sink that is colder than the freezer needs to be.

To finish the thought in my previous post, I became interested in Stirling engines when I realized that the difference between ambient temperature and the effective sky temperature could be exploited to produce power. I am here to explore the potential of using an LTD Stirling engine to produce power from ambient heat. I am certain it is possible, but investigation is needed to determine if it would be more economical than using thermocouples or another device to exploit the temperature difference.

I look at it this way. If I was able to come up with the invention in US Patent 4624113 before I found the patent, I can devise a way to make a Stirling engine efficient and inexpensive enough to make it worthwhile.

Jack

jhc9000
Posts: 2
Joined: Sun Nov 23, 2014 4:49 pm

Re: "Hi" We are new here!

Post by jhc9000 » Sun Nov 23, 2014 5:25 pm

hello
My name is Jorge Hugo Cordero, I am Electrical Engineer, I live in La Plata (Argentina) and between my hobbies are heat engines.
It is one of the activities that help me keep my mind active.
I can read English well enough, but I find it difficult to write.
So I write in Spanish, I translate (with Google) to English and back to Spanish.
I change the syntax of written so that the result is similar to the original.
The translation result seems intelligible (at least in the case of English).
It's not perfect, but it seems to work.

Saludos
Jorge Cordero

original-----------------------------------------------------------
Hola
Mi nombre es Jorge Hugo Cordero, soy Ingeniero Electricista, vivo en La Plata (Argentina) y entre mis aficiones se encuentran las máquinas térmicas.
Es una de las actividades que me ayudan a mantener la mente activa.
Puedo leer bastante bien el Inglés, pero me resulta dificil escribirlo.
Por eso escribo en Español, lo traduzco (con Google) al Inglés y nuevamente al Español.
Yo modifico la sintaxis del escrito hasta que el resultado sea similar al original.
La traducción obtenida parece inteligible (por lo menos en el caso del Inglés).
No es perfecto, pero párece funcionar.

Ian S C
Posts: 2221
Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: "Hi" We are new here!

Post by Ian S C » Mon Nov 24, 2014 2:41 am

Jorge, the translation seems OK, it's easily understandable, and there are English speakers that have worse English than you have. Welcome to the forum. Ian S C

Swifty-
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Joined: Thu Dec 04, 2014 6:58 am

Re: "Hi" We are new here!

Post by Swifty- » Thu Dec 04, 2014 9:57 am

Hello everyone, Steve here from Norwich UK (Better known as Swifty)...I do hope to get some knowledge, and help about my first Stirling engine, so you will probably see me around ...Thanks

Bill-W
Posts: 14
Joined: Sat Dec 13, 2014 8:01 pm

Re: "Hi" We are new here!

Post by Bill-W » Sun Dec 21, 2014 9:59 pm

Hello,

Bill-W retired 4 years ago and recently bought a metal lathe and interested in small projects to learn with

Stirling Engines seem perfect and they can become big projects too.

Currently googling and trawling the internet for any and all info available - that is how I found this forum

Was thinking on starting off small and simple and easy and then progressing to small and simple and lots of shinybling technical looking bits that go whizz.

Biggest I see me doing is a Moriya fan by Dr. Senft and smallest would be size of a coffee cup.

Save me some googling - any recommended downloads for newbies anywhere ? Plans Technical books Generally good web pages - I'v found a few stunning lookking dutch web pages and this one and a few with instructuions for using coke cans.



Regards

Bill

Ian S C
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Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: "Hi" We are new here!

Post by Ian S C » Mon Dec 22, 2014 2:45 am

Welcome Bill, I see you'v found Dr Senft, another to look out for is James G, Rizzo, any of his books including "The Stirling Engine Manual" volumes 1 and 2. A free down load is "Making Stirling Engines" by Andy Ross.
Ian S C

Andy
Posts: 5
Joined: Sun Jan 18, 2015 12:40 pm

Re: "Hi" We are new here!

Post by Andy » Sun Jan 18, 2015 1:06 pm

Hi all, I am from Pretoria South-Africa. I have 14 years experiance in speciality composites fabrication. I would like to build a Alpha engine that can produce real usable power.

Thanks for having me

Andre

Rog Tallbloke
Posts: 9
Joined: Wed Jan 21, 2015 11:06 am

Re: "Hi" We are new here!

Post by Rog Tallbloke » Wed Jan 21, 2015 11:12 am

Hi all,
I've built a couple of pop can stirling engines and want to try something more ambitious that has a practical application.
I'm an engineer by trade and like motorcycle camping in my summer free time.

Chriske
Posts: 87
Joined: Sat Oct 02, 2010 1:24 am

Re: "Hi" We are new here!

Post by Chriske » Sun Feb 08, 2015 1:01 pm

Hi,

Had some health issues, have 'some' reading to do here.... :wink:

Chris
Mijn thuis is waar mijn draaibank staat...

Ian S C
Posts: 2221
Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: "Hi" We are new here!

Post by Ian S C » Tue Feb 10, 2015 1:46 am

Chris, sorry to hear of the health issues, hope you get that sorted soon, it's been exciting hearing how you and your pupils have got on year to year building Stirling Engines, an inspiration to all who follow you.
Ian S C

Hobblerian
Posts: 3
Joined: Tue Feb 10, 2015 3:27 am

Re: "Hi" We are new here!

Post by Hobblerian » Tue Feb 10, 2015 3:48 am

Ello all, I'm Ian, I'm alive n I hobble.

Just been trying to make couple of fans for my woodburner, 1 Peltier module based one, and a more challenging stirling based one.

Needless to say the Peltier is up and running, however the stirling has a few more niggles that need knocking out of it. Chief of which is, I can't get it running at the moment but I've not given up on it yet :smile:

Ian S C
Posts: 2221
Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: "Hi" We are new here!

Post by Ian S C » Wed Feb 11, 2015 1:51 am

Hi Ian, I'm Ian also, and I hobble a bit too. You will see Images 18 to the right of this post click on that, and go to page 2, you will see my stovetop Stirling Engine Fan.
Ian S C

Hobblerian
Posts: 3
Joined: Tue Feb 10, 2015 3:27 am

Re: "Hi" We are new here!

Post by Hobblerian » Wed Feb 11, 2015 4:33 pm

Very nice, when I get the chance I'll upload a picture or 2 of my fan project in my personal album. Though as of yet it's not running. I still got a couple of things in mind to try with it, I haven't thrown in the towel just yet. It was while searching for Ideas and inspiration I stumbled across this forum. :smile:

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