Ocean Thermal Energy Conversion


 
 
Concept Explanation
 

Ocean Thermal Energy Conversion

Ocean Thermal Energy Conversion (OTEC): 

Solar energy falling on the surface of the ocean warms it. The water at the surface of the ocean is warmer than the water deep below. Generally, the difference in temperature is about 20°C between the surface water and the water at a depth of 1 km.

This temperature difference can be used to operate an ocean thermal energy conversion (OTEC) plant. Clearly, the ultimate source of the stored thermal energy of the ocean is the Sun.

In one system for OTEC, a fluid with low boiling point such as chlorofluorocarbon (CFC) is used as the "working fluid'.

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Sample Questions
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Question : 1

In a system for ocean thermal energy conversion , a fluid with low boiling point such _____________ is used as the "working fluid'.

Right Option : B
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Question : 2

The temperature difference of water at the surface of sea and that at a depth in the sea can be used to operate an ocean _____________________ conversion plant .

Right Option : A
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Question : 3

Ocean - thermal - energy can be utilized when the temperature difference between the water at the surface and water at depths up to 2 km is __________

Right Option : C
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