KNOWX: Ambient, interior and dewpoint temperanures. Vehicle speed and dimensions of windsitield. Heat transfer comelation for external flow:

FIND: Minimum value of couvection coefficient needed to prevent condensation on interior surface of windshield

SCHE$$LTIC:

ASSUMPTIONS: $(1)$ Steady$-$state, $(2)$ One$-$dimentional heat transfer, $(3)$ Constant properties.

PROPERTIES: Table $4-3,$ glass: $k_e-1\mathrm{.}4WmK.$ Prescribed air $k=0\mathrm{.}023\frac{W}{m}*K,v=12\mathrm{.}5{10}^{-5}\frac{m^2}{s},Pr=0\mathrm{.}70$