Goal: Optimize boiling heat transfer while also reducing the amount of gas burned to heat the kettle (i.e. minimize Ts). Restrictions/Variables: ● Brew kettles are usually heated by burning natural...

Goal: Optimize boiling heat transfer while also reducing the amount of gas burned to heat the kettle (i.e. minimize Ts).
Restrictions/Variables:
● Brew kettles are usually heated by burning natural gas. A thermostat measures the surface temperature (Ts) of the brew kettle and keeps the gas on if Ts is too low or turns the gas off if Ts reaches/exceeds the setpoint.
o You can use this feedback loop to maintain any Ts you wish.
● You must select a real brew kettle (tank) and use its properties for your calculations.

1. What type of boiling is most efficient?

2. Compare the optimum Ts values of at least 2 materials. What types of materials provide the lowest Ts?

Extracted text: 3. Complete the table below: Maximum Heat Flux (a) Brew Kettle Properties Material Optimum Surface Temp (T.) Brew Kettle #1 Brew Kettle #2 Нeat Valve Controller Natural Gas Thermocouple


Extracted text: Oside AU Øbottom Step 5: Boiling the Wort in the Brew Kettle Task: Sterilize the wort by boiling it in the brew kettle, which is heated by natural gas