Food Processing Technology - Lecture 2 (ADFTO)

What is process engineering?

• an attempt to combine all types of processing into one

• Process engineering are called operational units

• Process engineering is an attempt to combine all forms of physical processing into a small number of basic operations, which are called unit operations.

• Process engineering is the mixture of science, engineering and processes.

Food processes may seem bewildering in their diversity, but careful analysis will show that these complicated and differing processes can be broken down into a small number of ________.

• operational unified process

• unit operations

• operation

• unit

Unit operations are like the different jobs that need to be done to make our food.

• True

• False

Heat transfer is all about how heat moves from one thing to another.

• True

• False

_______ where heat moves through a liquid or gas, like when you boil water in a pot.

• Conduction

• Radiation

• Convection

• Irradiation

The law of conservation of energy says that energy can't just disappear or come out of nowhere. It can change from one form to another, like from movement to heat, but the total amount of energy stays the same.

• True

• False

The law of conduction of mass states that mass can neither be created nor destroyed.

• True

• False

For total plant energy, the balance must include: ,

• the conversion in the pump of electrical energy to kinetic and heat energy

• the kinetic and potential energies of the milk entering and leaving the plant and the various kinds of energy in the heating and cooling sections

• the exiting heat, kinetic and potential energies

• All of the above

To the food technologist, the speed affecting the product are the most important.

• True

• False

Important unit operations in the food industry are;

• fluid flow

• heat flow

• drying

• all of the above