Thermal/Fluids System Design: MECH-422-01
Quiz 11 (Open book): Thursday, April 29, 2021
Time available: 15 minutes
Given the following for a counterflow, double-pipe, heat exchanger, find the
required pipe length. Neglect resistance to heat transfer due to pipe wall
conduction.
Heat transfer = 10.0 kW
$T_{c,1}$ = 65°C, $T_{c,2}$ = 150°C
$T_{h,1}$ = 200°C, $T_{h,2}$ = 180°C
$d_1$ = 32.79 mm, $d_2$ = 34.93 mm.
$h_i$ = (1000 + M) W/m$^2$K, $h_o$ = (800 + D) W/m$^2$K.
Show all work, and clearly state your birth day, D, and birth month, M.
