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Evaporative cooling and aquaponics  RSS feed

 
Aery Eltibrizi
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Hello Permies,
I must admit I never heard this word before today, maybe because most people have other words for this such as biological/natural, etc.
Non the less I am glad I found this website, more like relieved actually..I have been having questions to which google doesn't seem to be helpful, maybe my questions where just too long or unclear, but I hope some of you folks can help me out <3.
Before I start with my story and questions I want to ask for your patience, english is not my first language and I also have ABI disability so if you could explain things more widely I would really really appreciate it!!!

Originally I live in the Netherlands, but later this year I am moving to africa, North-East Sudan to be exact, and well.. I want to chase my long lost dream, farming. Now I am a complete newbie at farming, but this is not something I just wanna do out of a crazy idea, I am serious about this despite my disability, I plan to be doing farming for the rest of my life.
However moving to a different continent with a complex climate is gonna test that new found love for green life.
The city I will be living in is Port Sudan, its on the coast of red sea, has high humidity in air around 60-70%, degrees as high as 35-40c (80-105f) during summer months and slightly lower in winter months. More on Port Sudan https://en.wikipedia.org/wiki/Port_Sudan
We bought a few hectares of land in the city and it's not far from the sea.
Now the golden question, can i grow strawberries/blueberries in a cooled greenhouse and not be called crazy? I really tried doing google research on this before asking...and have been chasing the invisible rabbit for weeks now, never really getting close to a clear answer...
I was thinking of doing it with aquaponics, growing berries in hanging pipes in the greenhouse and adding honeycombed cardboard evaporative pad cooling system to keep the temperatures low. Living near the sea, maybe I could even convert the seawater to fresh water, that I get from my well.
Since I'm a little nuts I want to keep my fish happy too, so I was thinking instead let the poor fish swim in a water tank I would create a cute pond in the garden for them and add pipings and pomps there instead of keeping the fish in the greenhouse, or would Koi need lower temperatures as well like the berries?

So here are my few questions.

- Is it crazy or ok to grow berries in cooled greenhouse in terms of electric bill and long term?
- Is Saltwater converting to freshwater system worth investing in?
- Also I read somewhere that evaporating cooling is not that great in humidity airs, but rather dry air, how much of this is true and is it worth for me to use evaporating cooling with 60-70% humidity?
- Keeping fish outdoors in a cute pond in garden then pumping the water up to my greenhouse flowerbeds, then draining the plant water back to the pond, will that work alright with the eco system?
- Can the fish pond be big or does it have to be small in order for the necessary nutritients from fish waste to keep the plants thriving?
- Does the fish waste dissolve in water or does it collect at the bottom of the pond in which case i could create few deeper areas in the pond for the pipes to pump up the waste from there?
- More tips are welcome! <3
- Would tinting my greenhouse with anti UV films work in terms of keeping the temperatures even lower, or would it be bad for strawberries in terms of not enough sunlight?

I know some of these questions sound really silly, I do apologize, I tried figuring this out on my own, but it only made me more confused due to my disability.
I will appreciate any help, suggestions, ideas, etc.

Thank you for reading! <3
 
Kyrt Ryder
Posts: 746
Location: Graham, Washington [Zone 7b, 47.041 Latitude] 41inches average annual rainfall, cool summer drought
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At 19.617 North Latitude, you're in the true tropics. Strawberries and Blueberries are going to require more than just cooling, they'll also require manipulation of the amount of daylight hours they receive.
 
Roy Hinkley
Posts: 268
Location: S. Ontario Canada
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I would not even try to grow northern climate berries in a tropical climate. To save a lot of headaches use what is native to your climate.
The more humid your climate the less evaporative cooling will work.
If a fish pond is small toxins will build up more quickly than a large pond. You have to pump or filter more often to keep the fish alive.
Why a greenhouse? Do you need warmer temperatures? Are you protecting from cold nights?
 
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