CIEN $422$ Environmental Engineering Design Instructor: Dimitrios Dermisis

Design Problem III

You are requested to design the pipeline network connecting the source, S$,$ with cities A$,$ B$,$ and C$.$ Cities consist of up to $4-$story buildings and the minimum required pressure head is given from the formula $h_{\text{m}\text{i}\text{n}}=4(n+1),$ where $n$ is the number of stories$/$floors$.$

Specifically you need to come up with two different designs:

Design A: Use a common service tank for all $3$ cities.

Design B: Use $2$ different tanks.

For your decision consider the following:

$($a$)$ You need to minimize the length of the pipelines, especially the ones from the service tank to the city that predominately have greater diameter.

$($b$)$ You need to satisfy the pressure at the maximum elevation within each city.

$($c$)$ Avoid high elevation points.

For designs A and B plot the cross$-$section of the pipeline. similarlv to Figure $5\mathrm{.}12$ in vour texthnok