[foodhackingbase] update on the experimental incubator testing

[Frantisek Algoldor Apfelbeck]

Hi to all,
I've uploaded graphs of the latest Marcel's and my testing of the 
experimental incubator:

https://foodhackingbase.org/wiki/Experimental_Incubator/2.1_mamut_tamna

I will play with them more later on at the moment proper legends are 
missing and the scales of all graphs are not same which may make 
understanding of what is the performance bit hard. Also I need to add 
detailed description of the hardware like volume of the chambers, power 
of the pelties etc.

Especially Marcel's experiment shows the fine heating potential hitting 
over 70C, still the cooling is not doing too well. My heating results 
are satisfactory hitting around 50C for culturing many fermented 
products which I and we here are into, cooling is definitely not. I 
still do not know how to switch polarity of the peltier so the 
cooling/heating would be done automatically by program. I need to buy 
good h-bridge (ideas?) or make one or use some set of relays (how to do 
that?). I'm looking forward for comments!

I wonder if Lars could think about what may be the issue with the 
cooling because the Warpzone prototype is doing much better, going down 
to around 8C at over 25C outer temperature, right?

Many thanks for any info, I will be working on this in the next few 
days, I just cut my hand so no field work for a while and soon I will be 
able to type again properly :-)

Sincerely,

-- 
Frantisek Algoldor Apfelbeck

biotechnologist&kvasir and hacker

http://www.frantisekapfelbeck.org

"There is no way to peace, peace is the way." Mohandas Karamchand Gandhi


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