Since yesterday we are trying to tackle down the problem of the water which gets too hot during the day. Yesterday the water in the tank started from 28.8 oC and after 8 hours the water temperature rose to 31.8 oC. Initially we tried to put a dozen of icepacks inside the black 1m3 tank. However, as expected this showed no difference to the temperature, some icepacks are not enough to cool 1 m3 of water!
putting icepacks in the tank
Today we tried another solution: We made the pipe of the concentrate stream to pass from a bucket full of icecubes and icepacks before ending in the 1m3 tank. we hoped that the ice could cool down the concentrate stream before it returned to the tank.However, the material of the pipe proved to be a good isolator, and heat exchange with the ice was not achieved.
concentrate stream (in a spiral configuration) inside a bucket full of ice
we have to think about a heat exchanger solution probably using a spiral coil, placed inside the 1m3 tank.
we have to think about a heat exchanger solution probably using a spiral coil, placed inside the 1m3 tank.
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