Why our glycol system cannot make our wort cold enough?
- Jul 28, 2017
- 72
- beer
Why our glycol system cannot make our wort cold enough?
Generally if the cooling result is too much difference with the reasonable range, there may be two reasons: a. There may be some mistakes with the internal structure of the heat exchanger b. The city water flow capacity is not big enough. But the probability of an error on heat exchanger is too small.. So let us analyze as below:
1. When the glycol water temperature exceed 20 celsius, how many hours it will need for the chillers reduced it back to -4. If it could reduce 4-5 celsius/Hr, just mean the chillers works normally.
2. How about the flow capacity of your city water? Generally for the 15bbl system, the city water flow cannot less than 3T/hr. If the water flow is enough, the city water temperature should raise to above 50 celsius after it cooled the wort, now a effective heat exchanging occured. And now the wort temperature should at about 40-50 celsius.
3. How long it takes for the wort cooling? In theory, the wort cooling better being finished within 50min, if you cooling problem happened based on this time, it must be unnormal. But if the cooling time only takes 30mins, it is too short..
We finally have a small suggestion, which can be used temporarily:
Before the wort cooling, it is available to modulate the controller of the chillers to "Manual", and let the glycol water cooled to -8 celsius. Then it will be better for wort cooling.
And you can modulate the controller back to " Auto" again when the wort cooling is over. ( As -8 celsius is not quite suitable for the fermentation tanks).
Edited by Laura
Sales Manager in Tiantai Company
Email: [email protected]
Generally if the cooling result is too much difference with the reasonable range, there may be two reasons: a. There may be some mistakes with the internal structure of the heat exchanger b. The city water flow capacity is not big enough. But the probability of an error on heat exchanger is too small.. So let us analyze as below:
1. When the glycol water temperature exceed 20 celsius, how many hours it will need for the chillers reduced it back to -4. If it could reduce 4-5 celsius/Hr, just mean the chillers works normally.
2. How about the flow capacity of your city water? Generally for the 15bbl system, the city water flow cannot less than 3T/hr. If the water flow is enough, the city water temperature should raise to above 50 celsius after it cooled the wort, now a effective heat exchanging occured. And now the wort temperature should at about 40-50 celsius.
3. How long it takes for the wort cooling? In theory, the wort cooling better being finished within 50min, if you cooling problem happened based on this time, it must be unnormal. But if the cooling time only takes 30mins, it is too short..
We finally have a small suggestion, which can be used temporarily:
Before the wort cooling, it is available to modulate the controller of the chillers to "Manual", and let the glycol water cooled to -8 celsius. Then it will be better for wort cooling.
And you can modulate the controller back to " Auto" again when the wort cooling is over. ( As -8 celsius is not quite suitable for the fermentation tanks).
Edited by Laura
Sales Manager in Tiantai Company
Email: [email protected]
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