Question

please I don't really want the answer but I really need a good explanation of how to clearly understand this especially when it comes to sketching

also please with a readable handwriting

Heat Transfer a. Define the thermal conductivity of a bar of material with a cross sectional area of A and a length L b. A student has a sheet of single pane traditional glass in their bedroom. On a cold day the temperature outside their window is 6°C and they set their thermostat to give a comfortable 20°C inside temperature. The glass is 10mm thick. The window measures 1.50m by 1.15m. The thermal conductivity coefficient k, of traditional window glass is 0.9 W.m'K1. Calculate the energy Q, that is conducted through the window every hour. Assume that there are no other heat losses. c. Sketch the expected temperature profile from inside the room through the window pane to the outside. d. A wind starts to blow outside the window described in part (b) above. This leads to significant convection taking place. Sketch the new expected temperature profile and explain how this will differ from the profile previously drawn in (c).

Answer 1

is given b ereacs o ed day heat ③Birde otten suell ther dattuu on astis-, y i.ng so ,uy encare mare ais hetroen Hir badia a So ,1 Cond.ela, d hest poeveda tAout dbio 엉 tlar Led- lat

/t time伫8600 sec. L- to n-6 t0 . 824x100 Watt . Glass Cn) Pona d) 2o c