Hello,
This is my first post so if I don't have all of the information you need, please ask. I have a single jacket 30 bbl BBT which I have filled about 8 bbl worth for a test batch. I cannot get the temperature down below 46F even though I have the controller set to 36F. I transferred the beer under pressure from my FV and that seemed to go well. The CO2 pressure is currently at 15PSI and holding steady from the transfer. The temperature at the glycol chiller which is outside is set to 27F and I have a thermostat on my supply header inside and it reads 32F. The pressure on the glycol lines are set at 15PSI and the reading is on the return side. I get frost on the piping around the inlet solenoid valve and also some ice buildup on the outlet port of the tank. I also feel the glycol solution in the pipe coming out the outlet of the tank.
I removed the thermocoupler from the thermowell and inserted a hand held digital thermometer in the thermowell and it read around 46F as well. The thermowell is at the same height on the tank as the inlet to the jacket. I also have an autovent at the highest point in my glycol loop and if I turn the chiller pump off I do hear air releasing from it for a few minutes and then it stops.
I have tried to lessen the pressure on the glycol loop thinking that more contact time would be better. I do have some heat transfer compound on order for the thermowell but I cannot think that would help more than a few degrees. Also, this BBT is not in a cold room.
Thanks,
George Adams
GAEL Brewing Company
Geneva, NY
This is my first post so if I don't have all of the information you need, please ask. I have a single jacket 30 bbl BBT which I have filled about 8 bbl worth for a test batch. I cannot get the temperature down below 46F even though I have the controller set to 36F. I transferred the beer under pressure from my FV and that seemed to go well. The CO2 pressure is currently at 15PSI and holding steady from the transfer. The temperature at the glycol chiller which is outside is set to 27F and I have a thermostat on my supply header inside and it reads 32F. The pressure on the glycol lines are set at 15PSI and the reading is on the return side. I get frost on the piping around the inlet solenoid valve and also some ice buildup on the outlet port of the tank. I also feel the glycol solution in the pipe coming out the outlet of the tank.
I removed the thermocoupler from the thermowell and inserted a hand held digital thermometer in the thermowell and it read around 46F as well. The thermowell is at the same height on the tank as the inlet to the jacket. I also have an autovent at the highest point in my glycol loop and if I turn the chiller pump off I do hear air releasing from it for a few minutes and then it stops.
I have tried to lessen the pressure on the glycol loop thinking that more contact time would be better. I do have some heat transfer compound on order for the thermowell but I cannot think that would help more than a few degrees. Also, this BBT is not in a cold room.
Thanks,
George Adams
GAEL Brewing Company
Geneva, NY
Comment