$60,000l\frac{b}{h}$ of petroleum fraction will be cooled from $250F$ to $150F$ using water with a range of $85F$ to $120F.$ For each stream, the inlet pressure will be $50a$ and a maximum pressure drop of $10$ is specified. A fouling factor of $0\mathrm{.}002h.f{t}^{2\text{@}}\frac{F}{B}tu$ is required for each stream. The petroleum fraction is not corrosive, and its properties may be assumed constant at the values given below,

$\backslash$table$[[$Property$,$Petroleum Fraction,Water$],[$Cp$($Btu$/$lbm$.$ F$),0\mathrm{.}52,1\mathrm{.}0],[$K $($Btu$/$h$.$ft$.($:$F$