Question: S . 1 3 8 0 1 2 0 c m l lerindeki 8 milimetre kal nl nda bir cam d n n z .

S.1380120cmllerindeki 8 milimetre kalnlnda bir cam dnnz. Bu cam 18C scaklndaki bir ortamla -12C, scaklndaki dier ortam birbirinden ayrmaktadr. Camn ?1s1 iletim katsays0,78WmK, i yzeyin tann kat says20Wm2K, d yzeyin tanm katsayis7Wm2K olduuna gre;
a) Bu candan kaybolan 1siy1,
b) Camn scak tarafa bakan yzey scakln bulunuz.
Bu cam yerine 4 mm kalnlnda iki cam kullanlmas, iki cam arasndaki boluun 12 mm olmas1, iki cam arasndaki havann tann kat says2.5Wm2K olduunu varsayarak;
c) Yalitmli camdan kaybolan 131 y 1,
d) Camin scak yzeye bakan i yzey scakln,
e)ift cam kullanlmas durumunda 151 kaybinda azalmay bulunuz.
S . 1 3 8 0 1 2 0 c m l lerindeki 8 milimetre kal

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