Question $3$

$($a$)$ Draw a suitable schematic of the compressed air system for a workshop serving pneumatic tools and state the purpose $/$ functions of each component.

$(13$ marks$)$

$($b$)$ A small infirmary home has four departments occupying the $4$ corners and one treatment rooms in the middle. Each of the department has $3$ wards and each ward has $12$ beds.

Terminal units for oxygen and vacuum are provided for each bed. The treatment room has two oxygen and two vacuum outlets. The equivalent lengths of the medical gas pipes to each department and treatment room are $1000$ m and $500$ m respectively.

Using the three tables given below, please propose a suitable layout, and determine the flow rate and pipe size of the oxygen and vacuum pipes.

$(20$ marks$)$

Given: The total heat loss from each section of pipe is converted to a flow rate necessary to replace heat lost heat.

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$\backslash$frac$\{\backslash$mathrm$\{$kg$\}\}\{\backslash$mathrm$\{$~s$\}\}=\backslash$frac$\{\backslash$text $\{$ Watts $\}\}\{4\mathrm{.}187(\backslash$text $\{$ shc of water $\})\backslash$times $1000\}$

$\backslash ]$

Table Q$3-1$: Diversified flow for medical gases in $\backslash (\backslash$mathrm$\{$L$\}/\backslash$mathrm$\{$min$\}\backslash )$

i need to know how to draw the diagram