Consider a Pizza shop that has an oven capable of cooking $3$ pizzas at a time. The batch load is $3.$

If the perfect pizza needs $10$ minutes of cook time in the oven, the following method determines the effective capacity of the oven $($the resource pool$)$

Unit load $($Ti$)$ of the oven is $10$ min.

Effective Capacity $(1/$Ti$)$ of the oven is multiplied by the size of the batch load that it can handle.