Recent Posts

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21
Solar energy / 24 hour growing period
« Last post by CG on September 08, 2022, 04:24:03 pm »
Grow LEDs come on at night, pump irrigates.
23
Heat Engines / Re: Some engine kits
« Last post by CG on August 31, 2022, 02:36:24 pm »
I guess after 100 years I'm very disappointed that there isnt a serious commercial unit available, even as a kit.
I would like to see the SunPulse unit or something similar.
24
Heat Engines / Some engine kits
« Last post by Caleb on August 31, 2022, 10:18:33 am »
These look pretty neat.

https://youtu.be/EDFTdYRK3Uw
25
Battery / Interesting new battery
« Last post by CG on August 26, 2022, 07:26:43 am »
26
Solar energy / Solar heat storage
« Last post by CG on August 22, 2022, 08:17:22 am »
I have been dreaming of a way to store solar heat, to keep my house warm for many years. Many obstacles have prevented me from doing anything about it.
About 57 years ago I made a parabolic trough solar collector, to heat water.( In Michigan.)
I only exposed it to the sun for about 15 minutes and the water got so hot that it burned my hand.
My idea was to collect the heat this way then store it in an insulated tank to be extraxtedcat a later time to keep us warm.
I'd like to do an experiment to see how long a well insulated container can store hot water. How long would the water stay hot if not disturbed?
I have some styrofoam around so I guess I'll try it.

27
Steam / More efficient steam engine 50%
« Last post by CG on August 21, 2022, 11:40:16 am »
Sandia lab at it again.
Using the Brayton cycle instead of the Rankine cycle, to get 50% efficiency. And closed loop.
https://www.sandia.gov/labnews/2022/08/11/weve-got-the-power/
28
Solar energy / Re: Radient cooling
« Last post by CG on August 19, 2022, 11:54:37 am »
I like the cooler that uses the descant.
29
Heat Engines / Re: 16 cylinder stirling engine
« Last post by Caleb on August 05, 2022, 10:48:34 am »
That looks like it is producing some power.
30
Heat Engines / 16 cylinder stirling engine
« Last post by CG on August 05, 2022, 09:54:59 am »
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