Air at 2 a t m 2 a t m and 500 K 500

Question:

Air at $2 a t m$ and $500 K$ with a velocity of $U = 20 m / s$ flows across a compact heat exchanger matrix having surface type I1.32-0737-S-R. The length of the matrix is $0.8 m$ . Calculate the heat transfer coefficient and the frictional pressure drop. Use the following properties of air at $500 K$ and $2 a t m : ρ = 1.41 k g / m^{3}; C_{p} = 1030$ $J / k g - K; μ = 2.69 \times 10^{- 5} k g / m - s; \Pr = 0.718$ .

Air at $2 a t m$ and $500 K$ with a velocity of $U = 20 m / s$ flows across a compact heat exchanger matrix having surface type 9.29-0.737-S-R. Calculate the heat transfer coefficient and the frictional pressure drop. The length of the matrix is $0.8 m$ .