Q1W5 ES Energy Sources

Match

Match the following temperatures to the type of geothermal energy.

• Low-temperature geothermal energy

• Medium – temperature geothermal energy

• High – temperature geothermal energy

20°C to 90°C

90°C to 160°C

> 160°C

• 20°C to 90°C

• 90°C to 160°C

• > 160°C

Multiple Choice

How does a dry steam power plant work?

• Hot water from underground is piped directly into turbines, which powers the generator

• Hot steam from underground is piped directly into turbines, which powers the generator

• Hot water from underground is pumped into a cooler temperature flash tank and the steam powers the generator

• Hot steam from underground is pumped through a heat exchanger which heats a second liquid that transforms into a steam

Reorder

Arrange in order how electricity is generated from a flash steam.

• Fluid at temperatures greater than 360 °F (182 °C) is pumped under high pressure into a lower-pressure tank

• Changes in pressure causes some of the fluid to rapidly vaporize, or "flash".

• The vapor then drives a turbine, which drives a generator.

• Remaining liquid in the tank are flashed again to a second tank to extract even more energy.

1

2

3

4

• 1
• 2
• 3
• 4

Categorize

Options (6)

the oldest geothermal technology

uses hydrothermal fluids that are primarily steam

the most common type of geothermal power today

pulls deep, high-pressure hot water into cooler, low-pressure water

closed-loop system

the water/steam from the geothermal reservoir never comes in contact with the turbine/generator

Categorize the following descriptions to the type of geothermal power plant.

Dry steam

Flash steam

Binary System

Categorize

Options (7)

the most common technology which uses a dam to create a large reservoir

Electricity is made when water passes through turbines in the dam.

similar to impoundment but have a second reservoir below the dam.

Water is pumped from the lower reservoir to the upper reservoir, storing energy for use later

rely more on natural water flow rates

diverts just a portion of river water through turbines

sometimes does not use a dam or reservoirs

Organize these options into the right type of hydropower plants.

Impoundment facilities

Pumped storage facilities

Run-of river facilities

Multiple Choice

The following are the main components of a hydropower plant EXCEPT

• Dam

• Pen stock

• Loop system

• Powerhouse

Multiple Choice

The following are the main components of a hydropower plant EXCEPT

• Dam

• Pen stock

• Loop system

• Powerhouse

Multiple Choice

How does a dry steam power plant work?

• Hot water from underground is piped directly into turbines, which powers the generator

• Hot steam from underground is piped directly into turbines, which powers the generator

• Hot water from underground is pumped into a cooler temperature flash tank and the steam powers the generator

• Hot steam from underground is pumped through a heat exchanger which heats a second liquid that transforms into a steam

Open Ended

ABSTRACTION.

Differentiate geothermal and hydroelectric energy.

Open Ended

APPLICATION.

What are the advantages of having an hydroelectric plants in the community?

Open Ended

APPLICATION.

What are the advantages of having a geothermal plants in the community?

Multiple Choice

What are the advantages of both hydroelectric and geothermal plants in the community?

• Both produce zero air emissions

• Both are reliable and renewable energy

• Both are not associated with negative health impacts

• All of the above

Open Ended

APPLICATION.

Critique how you are using energy and write the things that you're going to change for you to conserve energy.

Open Ended

What are the social and economic implications of putting a power plant near a hot spring, which are often developed as tourist areas?

Open Ended

GENERALIZATION.

Explain how heat from inside the earth (geothermal) and from flowing water (hydroelectric) are tapped as a source of energy for human use.