(All Departments are of size... x-axis:12. y-axis:10.)

For the 9 department problem (layout given above), determine the number of units of the material handling system needed for the following data.

Vehicle Carrying Capacity= 400lb

Tote Weight= 10lb

Vehicle Travel Speed= 150ft/min

Loading & Unloading time= 30sec

Battery Charging during planning horizon= 30min

Assume Rectilinear measures (centroid to centroid) for calculating material handling distances.

Both Pick-up & drop-off points are located at the center of the departments.

Assume total loaded travel time= total unloaded travel time.

(this is the equation we were given)??? N=( (SUM(i) SUM(f) (fij*dij) / V) + (phi) (TLT) + SUM(i) SUM(j) (fij) (tL+tU) ) / ( e(T-tb) / (1+b+c) )

\begin{tabular}{|c|c|c|} \hline & & \\ \hline 1 & 2 & 6 \\ \hline 3 & & \\ & & \\ & & \\ 8 & & \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|} \hline Job Type & Number of Order/day & Process Sequence & Order Sizes & Job Weight (Ibs) \\ \hline 1 & 80 & 14289 & 50 & 70 \\ \hline 2 & 100 & 24358 & 100 & 60 \\ \hline 3 & 50 & 78632 & 200 & 40 \\ \hline 4 & 200 & 86435 & 100 & 30 \\ \hline 5 & 250 & 91426 & 400 & 40 \\ \hline \end{tabular} N=e(Ttb)(1+b+c)j(fijdij)V+(p(TLT)+ifj(tL+tU) \begin{tabular}{|c|c|c|} \hline & & \\ \hline 1 & 2 & 6 \\ \hline 3 & & \\ & & \\ & & \\ 8 & & \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|} \hline Job Type & Number of Order/day & Process Sequence & Order Sizes & Job Weight (Ibs) \\ \hline 1 & 80 & 14289 & 50 & 70 \\ \hline 2 & 100 & 24358 & 100 & 60 \\ \hline 3 & 50 & 78632 & 200 & 40 \\ \hline 4 & 200 & 86435 & 100 & 30 \\ \hline 5 & 250 & 91426 & 400 & 40 \\ \hline \end{tabular} N=e(Ttb)(1+b+c)j(fijdij)V+(p(TLT)+ifj(tL+tU)