Consider the possibility of extracting power from a flow of water of 1000 $\mathrm { L } / \mathrm { s }$ for the four following scenarios and calculate the power output. In all cases, assume a turbine/generator efficiency of $85 \%$.
(a) Geothermal water at $200 ^ { \circ } \mathrm { C }$ with a cold reservoir of $40 ^ { \circ } \mathrm { C }$.
(b) Hot water at $24 ^ { \circ } \mathrm { C }$ supplied to an OTEC facility where the cold water is at $4 ^ { \circ } \mathrm { C }$ and the indicated flow is the flow through the evaporator.
(c) Water falling through a head of $100 \mathrm {~m}$ in a high head hydroelectric installation.
(d) Water flowing through a run-of-the-river hydroelectric installation at a velocity of 5 m/s.

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The Answer of Consider the possibility of extracting power from a flow of water of 1000 $\mathrm { L } / \mathrm { s }$ for the four following scenarios and calculate the power output. In all cases, assume a turbine/generator efficiency of $85 \%$.
(a) Geothermal water at $200 ^ { \circ } \mathrm { C }$ with a cold reservoir of $40 ^ { \circ } \mathrm { C }$.
(b) Hot water at $24 ^ { \circ } \mathrm { C }$ supplied to an OTEC facility where the cold water is at $4 ^ { \circ } \mathrm { C }$ and the indicated flow is the flow through the evaporator.
(c) Water falling through a head of $100 \mathrm {~m}$ in a high head hydroelectric installation.
(d) Water flowing through a run-of-the-river hydroelectric installation at a velocity of 5 m/s.

Consider the Possibility of Extracting Power from a Flow of Water