Heat and Mass Transfer (ENGG*3430)
Winter 2014 (Useful Math)
Useful Information:
&
&
First Law of Thermodynamics for closed system: Ein Eout = dE
dt
=
system
dU
dt
= mCv
system
dT
dT
= (V )Cv
dt
dt
Useful Integration:
x n +1
x dx = n + 1 + C1
1
ln(ax + b
Differential equation for temperature distribution inside a geometry having variable thermal
conductivity and cross-sectional area
L
&
Qx
system
x
x
x+x
Insulated surface
&
Q x + x
k=thermal conductivity
Ac=cross-sectional area
Apply first law of thermody
ENGG3430: Heat and Mass Transfer
Midterm Exam
Winter 2012
Problem 1: A 60W electric bulb converts only l0% of its input electric energy to light. The remainingg0%o of the
input energy is converted to heat and dissipated to the surounding environment (T*:2
ENGG*3430: Heat and Mass Transfer
Winter 2013 Lab
Last Name
First Name
Signature:
Date of performing Experiments 1 & 2: March 28, 2013
Date of performing Experiments 3 & 4: March 21, 2013
Student ID
ENGG*3430: Heat and Mass transfer
Winter 2013 Lab
Table