Connecticut Maple Syrup Thermodynamics

Every late winter in Connecticut, "sugaring season" begins. Farmers boil thousands of gallons of raw maple sap to create syrup. This simulation models the thermodynamics of the process: applying thermal energy to drive a phase change (evaporating water) and observing boiling point elevation as the sugar concentration increases.

NGSS HS-PS1-5: Apply scientific principles and evidence to provide an explanation about the effects of changing the temperature or concentration of the reacting particles on the rate at which a reaction occurs. *(Note: While evaporation is a physical change, the principles of particle energy, concentration, and phase dynamics strongly align here).*

Evaporator Pan Cross-Section

Time: 0 min
Fluid Temp: 20.0 °C
Boiling Point: 100.0 °C
Sugar Conc.: 2.0 %
Fluid Vol.: 40.0 Gal
Evap Rate: 0.0 G/m
Syrup Finished! (66% Sugar)
Evaporator Pan is Full!

Thermodynamic Variables

More thermal energy = faster temperature rise and faster evaporation rate.

Sugar maple sap ranges from 1% to 4%. Higher starting concentration means less boiling required.

Boiling Point Elevation

As water evaporates, sugar concentration increases. Sugar molecules disrupt water's ability to evaporate, requiring higher temperatures to boil!