Lab 2 Flashcards
1
Q
thermocouple
A
transient response
its a curve from t0 to infinity - steady state
2
Q
thermal time constant
A
t = pVc/hcA
3
Q
Bi number
A
Bi = hl/K
4
Q
Lumped capacitance
A
for when Bi < 0.1
pVc dT/dt = hcA(Tinf-T(t))
5
Q
steady-state comparative method for solid thermal conductivity measurements
A
ignores surface heat loss, assumes 1d steady state heat conduction
q = krAr(T1-T2/deltax = ksAs(T3-T4)/deltax = T2-T3/Rcont
6
Q
fins
A
they get rid of heat by increasing the surface area for heat convection
there is a table that gives you the equation you need
7
Q
transient measurment of heat capacity
A
step by step
lumped capacitance condition
bi number
then lumped capacitance stuff
8
Q
for small t and steady state - exp 3
A
T(t) = T0 + (q/pVc)t
