Q. Consider the following statements in relation to the term OTEC (Ocean Thermal Energy Conversion): - OTEC uses the temperature difference between cooler deep and warmer shallow or surface ocean waters to run a heat engine and produce electricity.
- OTEC provides energy 24hrs/day all year long with higher economic efficiency.
Which of the above statements is/are correct?
Answer:
Only 1
Notes: Ocean Thermal Energy Conversion technology, or OTEC, uses the ocean's natural thermal gradient to generate power. In geographical areas with warm surface water and cold deep water, this temperature difference can be leveraged to drive a steam cycle that turns a turbine and produces power. OTEC is a base load electricity generation system, meaning it provides power 24 hours a day, all year long. However, since the temperature differential is small, the efficiency is low, which decreases the economic feasibility of ocean thermal energy for producing electricity. Hence, the second statement is partially incorrect, making Option 1 the correct answer.