Process Integration Quiz 3

Pinch Analysis involves an analysis of the potential maximum heat recovery for a process.

• True

• False

The minimum approach temperature difference (DT_min) between composite curves influences the heat transfer area, and the operating cost of a process.

• True

• False

The DT_min should be as small as possible to ensure that energy saving can be maximised and to maintain an overall process profitability.

• True

• False

The sum of heat excess (heat surplus) minus sum of heat demands equals the minimum energy targets for a process.

• True

• False

The shifted temperature interval is used to factor in energy losses from hot and cold composites

• True

• False

Setting the minimum energy target using Problem Table Analysis (PTA) is a process getting the overall sum of net enthalpies throughout temperature intervals.

• True

• False

In the PTA, a negative heat flow across temperature intervals will give the hot utility target.

• True

• False

If there exist energy surplus at a lower temperature interval, it is good to use it to satisfy energy demand at a higher temperature interval.

• True

• False

Heat can be transferred from low temperature to a high temperature, with the aid of energy.

• True

• False

Knowing the Pinch Point allows engineers to identify if there are suboptimal heat exchange within a process.

• True

• False