Which of the following shows the proper sequence of energy conversion in a
Geothermal powerplant?
A. Mechanical energy → heat energy → electrical energy
B. Electrical energy → mechanical energy → heat energy
C. Heat energy → mechanical energy → electrical energy
D. Heat energy → electrical energy → mechanical energy
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Answer:
B. Electrical energy → mechanical energy → heat energy
Explanation:
potentntial energy ( water Fall ) → Kinetic energy → Mechanical Energy
↓
Electrical energy
↓
Heat or Light Energy
The water accumulation as stored in the dam have potential energy. When this potential energy is released as water falls, it now then converted to kinetic energy and triggers the turbine to turn (mechanical energy). As the turbines of the generator turns, it converted mechanical energy to electrical energy. The electrical energy generated will be distributed to the different consumers and produces light and heat energy.
Geothermal Power Plant Energy Transformation
Thermal Energy → Kinetic energy (steam) → Mechanical Energy
↓
Electrical energy
↓
Heat or Light Energy
The heat accumulation as stored in the mantel have thermal energy. When this thermal energy is released, it produces steam which flow towards the turbine (kinetic energy) and triggers the turbine to turn (mechanical energy). As the turbines of the generator turns, it converted mechanical energy to electrical energy. The electrical energy generated will be distributed to the different consumers and produces light and heat energy