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OTEC & Heat Exchangers

Total questions: 15

Worksheet time: 12mins

Name
Class
Date
1.

•The simplest type of heat exchanger

•One fluid flows through the smaller pipe while the other fluid flows through the annular space

Statements above describe what type of heat exchanger?

a)

Plate and frame

b)

Shell and tube

c)

Double pipe

d)

Compact

2.

Figure represents equation for ?

a)

Fouling factor

b)

Effectiveness-NTU

c)

LMTD

d)

Overall heat transfer coefficient

3.

What is the type of flow arrangement shown?

a)

Parallel flow

b)

Counter flow

c)

Mixed Flow

d)

Cross flow

4.

Is Ocean Thermal Energy Conversion (OTEC) part of Renewable Energy?

a)

Yes

b)

No

5.

What is the temperature difference for OTEC technology to be economically viable?

a)

10 – 15 °C

b)

20 – 25 °C

c)

15 – 20 °C

d)

25 – 30 °C

6.

Where does the evaporation process takes place, what’s the name of the component?

a)

Condenser

b)

Evaporator

c)

Incinerator

d)

Electrolyser

7.

Important components for desalination process would be:

i) Turbine

ii) Condenser

iii) Evaporator

iv) Flash chamber

a)

i & ii

b)

i & iii

c)

ii, iii & iv

d)

ii & iv

8.

Important components for desalination process would be:

i) Turbine

ii) Condenser

iii) Evaporator

iv) Flash chamber

a)

i & ii

b)

i & iii

c)

ii, iii & iv

d)

ii & iv

9.

The Flash Chamber is vacuumed for Desalination Process.

a)

True

b)

False

10.

What is the phase of working fluid in and out of a Condenser?

a)

In: Liquid, Out: Vapour

b)

In: Solid, Out: Vapour

c)

In: Liquid, Out: Solid

d)

In: Vapour, Out: Liquid

11.

What is the phase of working fluid in and out of an Evaporator?

a)

In: Liquid, Out: Vapour

b)

In: Solid, Out: Vapour

c)

In: Liquid, Out: Solid

d)

In: Vapour, Out: Liquid

12.
Heat transfer in the image.
a)
conduction
b)
convection
c)
radiation
13.

What is heat?

a)

a gaseous substance

b)

thermal energy

c)

electricity

d)

light energy

14.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
d)
It can travel high to low and low to high. 
15.
What  is the formula to calculate heat energy required to raise the temperature of any substance?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ½mv
d)
m=QC