Problem $03($from an old exam$)$:

For the chemical production of $$A$$ and $$B$,$ it is scheduled to produce the same number of batches

for A and B$.$

Below is a Table that summarizes their processing time $($in hr$).$

Step $01$ Step $02$ Step $03$ Step $04$ Density

A $2\mathrm{.}51\mathrm{.}54\mathrm{.}550\mathrm{.}9$ kg$/$L

B $3\mathrm{.}53\mathrm{.}55\mathrm{.}541$ kg$/$L

a$)$ Assume that each product will be produced in separate campaigns $($AAA$...$BBB$...),$ and

there is NO OVERLAP between campaigns $($that is$,$ step $01$ for product B cannot start

before step $04$ of product A$).$

Determine the number of batches for each product $($A and B$)$ required each month

$($makespan per month $=600$h$)$ in these two separate scenarios:

a$\mathrm{.}1$ Assuming a non$-$overlapping policy. Answer: # batches A $=$ # batches B $=\_\_\_\_\_\_$

a$\mathrm{.}2$ Assuming a Zero wait policy. Answer: # batches A $=$ # batches B $=\_\_\_\_\_\_$

b$)$ From part a$2($zero$-$wait policy$),$ if the yearly demand for product B is $180,000$ kg$/$year$,$

determine the storage capacity $($volume$)$ for this product B assuming constant demand for

B$.$

Answer: Storage volume for product B $=\_\_\_\_\_\_\_\_\_$liters