CHEN$-200$ COMPUTATIONAL METHOdS IN CHEMICAL ENGINEERING HW #$4$

a$)$ Calculate the amount of time $($in minutes$)$ required to

reach the required operating temperature of $240C.$

Note #$1$: The energy required to raise the temperature of

an object is a product of the object's mass, heat capacity,

and the temperature rise.

Note #$2$: Remember, power is energy per unit time!

b$)$ Display the entire program code $($i$.$e$.,$ the script or m$-$

file$)$ used for your problem solution in MATLAB. Include

your name as a comment.

A batch chemical reactor $($and the chemicals inside of it$)$

need to be pre$-$warmed at the start of the workday so

that the product may be formed according to existing

operating specifications.

The reactor kettle and chemicals inside it must be

warmed from an initial temperature of $25C.$ The reactor

kettle is $3kg,$ and it has a heat capacity of $800\frac{J}{kg*K}.$

The chemicals inside are $5kg,$ and they have a heat

capacity of $3800\frac{J}{kg*K}.$ The heating mantle wrapped

around the reactor supplies electric heating power at the

level of $Q^{}=750W.$ Heat loss to the surroundings may

be ignored.