I'm trying to calculate how long it will take for a 5 Liter HDPE container with a wall thickness of 0.005 m filled with 50 degree water to equalize with the outside temperature of 20 degrees.
Thermal Conductivity of HDPE. -Approx. 0.88W/mk
Total surface area exposed to water is - 0.169m ²
So i used Fouriers law:
I calculated 892.32 Watts
My question is what does this relate to? Im realy confused how I use this to determine the time it will take for the water temp to equalise.
Thanks for your help!