First stage finished and under vacuuming!
https://i.ibb.co/WxPt6BM/IMG-20220108-225653.jpg
https://i.ibb.co/jb35XMj/IMG-20220108-225749.jpg
https://i.ibb.co/wpZJcJH/IMG-20220108-225733.jpg
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Type: Posts; User: Obijuan83; Keyword(s):
First stage finished and under vacuuming!
https://i.ibb.co/WxPt6BM/IMG-20220108-225653.jpg
https://i.ibb.co/jb35XMj/IMG-20220108-225749.jpg
https://i.ibb.co/wpZJcJH/IMG-20220108-225733.jpg
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https://i.ibb.co/Pr4S8Z0/IMG-20211118-222559-jpg-bea659b4b7ed299ca6b67498c62f027f.jpg
https://i.ibb.co/3FHMfc9/IMG-20211120-211701-jpg-dbfb04fe5ac36b23f1ef0c2ad627585e.jpg
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https://i.ibb.co/BLWCdLw/IMG-20211104-234436-jpg-e97a14b7c05eb14d8ee7fd457d9461e4.jpg
https://i.ibb.co/hXgddj5/IMG-20211106-113148-jpg-03471f420ec6775f7a6d3db8fd13cf6b.jpg
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https://i.ibb.co/rdYg00H/IMG-20211030-223528-jpg-65c63aff212436301a536a051927d608.jpg
https://i.ibb.co/gzgvZjK/IMG-20211030-230144-jpg-a72d412f22b7944b93e7983ead64c18e.jpg
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After my first attempt decided to try a Cascade with reciprocating compressors for quiet operation.
Will consist of:
1st Stage
-Tecumseh-L'unite 34cc 1.5HP Compressor
- 3KW Condenser
https://i.ibb.co/dBgrr3X/image-id-2543897-png-57b5f27895260739039dcb52bee57572.png
https://i.ibb.co/0nTc08T/image-id-2544200-png-ed6349881d8a3511cd746261a279ae4f.png
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Some result with Cascade
https://i.ibb.co/d0jcQw1/image-id-2554018.png
https://i.ibb.co/1XjH8Ld/image-id-2542172.png
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Finally after 4 months of building the Cascade its time for some numbers!
https://i.ibb.co/KKqB30y/IMG-20210714-215004.jpg
https://i.ibb.co/G5ZKXz4/IMG-20210714-220836.jpg
First stage up and running, fully insulated!
https://i.ibb.co/PtYNC3c/IMG-20210703-181516.jpg
https://i.ibb.co/b15Z8xh/IMG-20210703-181718.jpg
Time has come, only filling the 2 stages with r404a and r1150 remains
https://i.ibb.co/q56dZy7/IMG-20210619-074612.jpg
https://i.ibb.co/y5GnjFT/IMG-20210628-000121.jpg
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Thanks, its a really compact cascade, a bit tricky to fit them all in 50x70cm base but I am used to work in limited space :) ( human abdomen )
Protective frame
https://i.ibb.co/qFxRrZ6/IMG-20210428-180526.jpg
https://i.ibb.co/5x5MYwG/IMG-20210428-180623.jpg
First stage is ready
https://i.ibb.co/wCVWYmr/IMG-20210417-231449.jpg
https://i.ibb.co/bXbDCpp/IMG-20210417-231948.jpg
Also progress to 2nd stage, waiting for evaporator.
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Thanks, I would like to have -115C idle/-100C Load @ 350-400w.
A little more progress
https://i.ibb.co/6n05g1h/IMG-20210408-190517.jpg
https://i.ibb.co/5WndPwS/IMG-20210408-190556.jpg
And...
Some electric components arrived
https://i.ibb.co/dLbBGxm/IMG-20210405-200158.jpg
https://i.ibb.co/C1qn6fs/IMG-20210405-200131.jpg
https://i.ibb.co/KxNPjtL/IMG-20210405-213952.jpg
Some progress
https://i.ibb.co/0Z7ns2q/IMG-20210404-222837.jpg
https://i.ibb.co/mS4xRSQ/IMG-20210404-222925.jpg
Its time for the next step in Phase Change cooling, so decided to build a 2 Stage Cascade.
It will consist of:
1st Stage
- Mitsubishi RE313VDMT Rotary 18k BTU/31.3cc
- 3KW Condenser...
Its a long time I finished it, but had no time testing it in action.
At slightly in vacuum it goes down to -28 without fan working, I have to tune it at load...
I recently revisited s775 and decided to build a tiny chipset SS
I used:
1/10hp 2.95cm? r134 Compressor
Condenser 21x17cm
Base plate 27x24cm
3m 0.8mm captube
1/4"discharge line...
Some aesthetic improvements!
All up and running
https://i.ibb.co/cymvzKL/IMG-20201213-220252.jpg
https://i.ibb.co/PZbG9Sq/IMG-20201213-220411.jpg
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R404a/r507 should used in an SS.
For -50C @ load you have to use a Rotary compressor as in the SS in first page
Thanks!
Its almost finished, only charge with r404a left.
https://i.ibb.co/7Gnkfgs/IMG-20201209-160443.jpg
https://i.ibb.co/M5P6ZNT/IMG-20201209-160404.jpg
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Adding gauges to the "small" SS
https://i.ibb.co/JdGYqJH/IMG-20201207-220542.jpg
https://i.ibb.co/vmTDGsx/IMG-20201207-220507.jpg
Its idle temperature
Some improvements, I add a 220v fan regulator due to low ambient temp.
https://i.ibb.co/GptfqrW/IMG-20201128-230220.jpg
https://i.ibb.co/ftM9tCZ/IMG-20201128-230435.jpg