Heat exchanger

Question 1

Describe a heat exchanger

Answer 1

a series of thin plates that form adjacent channels for fluid to flow through, they are corrugated which gives a bigger surface are and stiffness, turbulence improves heat transfer and tends to give less scale

Question 2

4 advantages of plate type heat exchangers

Answer 2

1. plate coolers are light and smaller than tube and have same efficiency
2. easy to dismantle and replace the plates
3. extra plates can be added to increase capacity
4. simple to clean

Question 3

4. disadvantages

Answer 3

1. titanium plates are expensive
2. joints can deteriorate and make maintenance expensive
3. leaks hard to find
4. over tightening can cause damage to the plates