SubZero Esky — Portable Cooler Simulator

How long will your drinks stay cold? Ice melt physics • insulation modelling • solar gain • lid discipline

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🧊 Esky Cross-Section

Internal Temperature

Ice Remaining

Heat Ingress Breakdown

Optimiser Results


  

Esky Design Report


Results

Ice Lasts
hours
Drinks Cold (<6°C)
hours
Final Drink Temp
°C
Ice Remaining
kg
Total Heat Ingress
kJ
Lid Loss
% of total

Heat Breakdown

Through Walls
kJ
Through Lid
kJ
Through Floor
kJ
Solar Gain
kJ
Lid Opens
kJ
Drink Pre-cool
kJ (absorbed from drinks)

Esky Specs

Internal Volume
litres
R-value (walls)
m²K/W
Total UA
W/K
Weight (empty)
kg
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