How long does it take to heat a vessel?

[Modrisco89]

Looks like I'm not out tench yet, so I'm assuming it should be in watts per kelvin for the k value, thermal conductance of air perhaps?

 

[Modrisco89]

I found kA/L

So k = air thermal conductance and A = surface area of tank, what would L be?

 

[Chestermiller]

Looks like I'm not out tench yet, so I'm assuming it should be in watts per kelvin for the k value, thermal conductance of air perhaps?

Start with a value of k equal to the surface area times 10 $\frac{W}{m^2.C}$.

 

[Modrisco89]

Start with a value of k equal to the surface area times 10 $\frac{W}{m^2.C}$.

That's perfect; my values are coming out longer than the original equation I had for time, thank very much for all the help and sorry for my maths

 

[Modrisco89]

Can I ask one question, when you solved that DE, what were your initial conditions? I assumed it to be T(0) would it be something else? like k(Ta-To)?

 

[Chestermiller]

Can I ask one question, when you solved that DE, what were your initial conditions? I assumed it to be T(0) would it be something else? like k(Ta-To)?

The initial condition is $T=T_0$ at time t = 0.

 

[Modrisco89]

Can I ask one question, when you solved that DE, what were your initial conditions? I assumed it to be T(0) would it be something else? like T(0)-Ta?

The initial condition is $T=T_0$ at time t = 0.

Ya I thought that made sense, I'll have to double triple check my maths and find out why the LTM is not working for me, thanks

Marking as solved