An Offshore OTEC Facility Operates with a Warm Reservoir Temperature $22 ^ { \circ } \mathrm { C }$

question 14

Essay

An offshore OTEC facility operates with a warm reservoir temperature of $22 ^ { \circ } \mathrm { C }$ and a cold reservoir temperature of $5 ^ { \circ } \mathrm { C }$ .
(a) If $65 \%$ of the output power is required for operation of the facility (e.g., primarily water pumps), what is the net efficiency?
(b) In order to transport the electricity that has been generated to land, hydrogen is used as an energy storage mechanism. Hydrogen is produced by the electrolysis of water and is converted back to electricity using a fuel cell, with an overall efficiency of $40 \%$ (see Section 20.9). What is the net overall efficiency, and how does this compare with, for example, wind or solar photovoltaics?

Identify factors that cause movements along the short-run aggregate supply curve.

Describe conditions that lead to shifts in the short-run aggregate supply curve.

Analyze the impact of expectations on short-run economic outcomes.

Discuss the concept of potential output and factors that influence it.

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Definitions:

Memory B Cells

B cells that continue to produce antibodies after the immune system overcomes an infection.

Antibody

A protein produced by the immune system that recognizes and binds to foreign substances (antigens), facilitating their destruction.

Plasma Cells

Specialized white blood cells that produce antibodies, playing a key role in the body's immune response to infection.

Cytotoxic T Cells

Immune cells known for their capacity to kill cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.