heat exchanger

Question 1

heat exchanger for gas to gas

Answer 1

intercool and aftercool

Question 2

heat exchanger to liquid to gas

Answer 2

shell and tube

Question 3

liquid or gas in the tubes of shell and tube heat exchanger

Answer 3

liquid

Question 4

heat transfer through contact of the fluid with a metal surface

Answer 4

conduction

Question 5

heat transfer as a result of movement of gas or fluid from a warm location to a cooler one

Answer 5

convection

Question 6

rate conductor best to worst

metal, liquid, gas

Answer 6

metal
liquid
gas

Question 7

heat transfer from electromagnetic wave moving across a space

Answer 7

radiation

Question 8

flow path arrangement have both fluids flowing in the same direction

Answer 8

parallel flow

Question 9

flow path much more efficient than parallel flow

Answer 9

counter flow

Question 10

flow path that can create turbulance and used for efficiency

Answer 10

crossflow

Question 11

flow path often using baffles

Answer 11

mixed flow

Question 12

heat exchanger that has continually curving passage creating turbulance, scrubbing effect to reduce fouling and is true counterflow

Answer 12

spiral heat exchanger

Question 13

efficiency of water tower depends on

Answer 13

area of water surface
length of contact time between air and water
relative humidity

Question 14

water tower using fan

Answer 14

mechanical draft

Question 15

water tower without fans

Answer 15

natural draft

Question 16

mechanical cooling tower use fan to push air through the tower

Answer 16

force draft

Question 17

mechanical cooling tower has fan at top of tower that pulls the air up

Answer 17

induced draft

Question 18

induced draft or forced draft cooling tower is more efficicient

Answer 18

induced

Question 19

heat exchanger for high pressure, low temperatures

Answer 19

double pipe

Question 20

heat exchanger for higher pressure, high temperatures

Answer 20

shell and tube

Question 21

tubesheet layout for most tubes

Answer 21

30 degrees

Question 22

tubesheet layout for easy cleaning

Answer 22

45 and 90

Question 23

tubesheet layout offers least resistance and least pressure drop

Answer 23

in line square

Question 24

purpose of baffles

Answer 24

cause turbulence and provide support to tubes

Question 25

dirty fluid in fixed tubesheet shell and tube heat exchanger

Answer 25

tube

Question 26

dirty fluid in u tube heat exchanger

Answer 26

shell

Question 27

2 determining factors of shell tube efficiency

Answer 27

tube length and shell diameter

Question 28

standard for hydrotesting

Answer 28

1.5 times working pressure