Exam 7: Heat Exchangers

Heat exchanger effectiveness is linked to all of the following except:

Inside a tube with streamline fluid flow temperatures are relatively constant.

The heat exchanger that is designed to take the highest flow rates and largest temperature differences is:

Plate and frame heat exchangers tend to foul easily because they have close clearances and low pressure drops across the plates.

The basic components of a plate and frame heat exchanger include all of the following except:

Turbulent flow allows molecules of fluid to mix and absorb heat energy better than laminar but it enhances the stationary film along the shell and tube walls.

Hairpin heat exchangers are relatively easy to clean and install.

A term used to describe flow in a heat exchanger where tube-side flow and shell-side flow go in the same directions.

Internal buildup on the surface area of a heat exchanger that results in a restriction is referred to as:

Plate and frame heat exchangers are easy to clean and have high heat transfer coefficients.

A term used to describe flow in a heat exchanger where shell-side flow vertically crosses the horizontal tube flow.

List the parts of a floating head heat exchanger.

On a simple shell and tube heat exchanger a process technician would turn the device into a bomb if he closed which of the following valves first.

Draw a plate and frame heat exchanger. Identify each component! Show all flows!

A type of heat exchanger that uses a tubular bundle to heat and flash a liquid in an over-sized shell with a vapor disengaging cavity.

Draw a U-tube heat exchanger. Do not list parts. Show flows

A baffle that is designed to deflect high velocity fluids inside a heat exchanger.

A layer of fluid that tends to adhere to the walls of a heat exchanger is referred to as:

The tub head on a floating head heat exchanger is firmly attached to the tube sheet.

A shell and tube heat exchanger can be used to heat and cool a substance.