PLEASE SOLVE THIS IMMEDIATELY AND ALSO STEP BY STEP SOLUTION WITH CORRECT ANSWERS REQUIRED. IF DONE SO WELL, DEFINATELY

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PLEASE SOLVE THIS IMMEDIATELY AND ALSO STEP BY STEP SOLUTION WITH CORRECT ANSWERS REQUIRED. IF DONE SO WELL, DEFINATELY A THUMBS UP AND PERFECT FEEDBACK WILL BE GIVEN.
Part B: 10 marks A Roof mounted solar panel with a surface area of dimensions 5m long and 1m wide is mounted horizontally on a flat roof. It is heated by the sun to a maximum mid-day temperature of 88°C, while the ambient air temperature is only 25°C. Determine the Nusselt number, Rayleigh number and hence the heat transfer co-efficent and total rate of heat transfer from the top of the PV panel at mid-day. You may use the properties below (table 4-1) and the Ra & Nu correlations (table 4-2): Table 4-1: Properties of air at the film temperature Pr P ср kg/m3 kJ/kg. N.s/m2 m2/s 1.1509 1.007 1.86E-05 1.62E-05 k W/m.K 0.0265 a m2/s 2.30E-05 0.71 (20-19 (20-201 Table 4-2: Correlations for natural convection Empirical correlations for the age Nusselt number for natural convection over surfaces Characteristic Geometry length Range of Ra Nu 10410 Nu=0.59R 10.100 Nu 0.1 0.327 Nu = 0.825 - { 11 + 10.492/Poje complex but more accurate) Use vertical plate equations for the upper Inclined pe surface of a cold plate and the lower Surface of a hot plate Replaces by cow to Re 10" 1 (20-22) Hope Surface and perimeter) a) Lipper urface of the plate for lower face of a cold plate) 10410 101-10 Nu 0.54R Nu = 0.15 (20-22) (20-230 Hace Alp Local a he plate for appar face of cold plate) 1010 Nu = 0.27281" (20-24) Vertical A vertical cylinder can be treated as a vertical plate when IU D