Design equipment for heat exchange between a seawater stream and another fluid. Therefore, material selection is required to determine the dimensions and proceed with construction. For this equipment, the goal is to maximize the heat flux per unit area or maximize the heat flux per unit mass.

Some additional constraints to consider are:

$$ A significant pressure drop is permissible.

$$ The operating temperature is at least $420$ K$.$

$$ There is a limited budget.

For the decision$-$making process, Figures $1$ and $2$ can be utilized, where the relationship between the yield strength and thermal conductivity is provided. Additionally, the data presented in Table $1$ is available.

$\backslash$table$[[$Material$,$Cost per kg $($US$/$kg$),\backslash$table$[[$Marine corrosion$],[$resistance$]]],[$Brass families,$1\mathrm{.}0,$Very low$],[$Phosphor Bronze,$1\mathrm{.}5,$Low$],[$Al$-$Bronze,$2\mathrm{.}2,$Good$],[$Nl$-$Fe$-$Al$-$Bronze,$3\mathrm{.}5,$High$],[$Bronze$-$Silice,$2\mathrm{.}5,$Low$]]$

$\backslash$table$[[$Material$,$Cost per kg $($US$/$kg$),\backslash$table$[[$Marine corrosion$],[$resistance$]]],[$Brass families,$1\mathrm{.}0,$Very low$],[$Phosphor Bronze,$1\mathrm{.}5,$Low$],[$Al$-$Bronze,$2\mathrm{.}2,$Good$],[$NI$-$Fe$-$Al$-$Bronze,$3\mathrm{.}5,$High$],[$Bronze$-$Silice,$2\mathrm{.}5,$Low$]]$