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Science 9 (Finals) > Heat Transfer and Energy Transformation in a Geothermal Power Plant > Flashcards

Heat Transfer and Energy Transformation in a Geothermal Power Plant Flashcards

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1
Q

Energy is always _.

A

Conserved

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2
Q

Power is…

A

work / time

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3
Q

Power is _ from energy.

A

different.

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4
Q

Industrial facilities that use different sources of energy and convert them into electrical energy.

A

Power Plants

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5
Q

Most predominant kind of power plant.

A

Thermal Power Station

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6
Q

Facility that capitalizes on the flow of thermal energy or heat as the source of energy that is to be transformed into electricity.

A

Thermal Power Station

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7
Q

Enumerate the three parts of any thermal power plant.

A
  • the boiler
  • the turbine
  • the generator
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8
Q

Parts of a Thermal Power Station

Heats water to convert it into steam.

A

Boiler

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9
Q

Parts of a Thermal Power Station

Steam turns this part that is connected to a generator.

A

Turbine

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10
Q

Parts of a Thermal Power Station

Converts the mechanical energy (from the turbine) into electricity.

A

Generator

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11
Q

Enumerate the Types of Thermal Power Plants Based on the Source of Heat

A
  • Fossil fuel power
  • Biofuel
  • Nuclear power
  • Geothermal power
  • Solar power
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12
Q

Types of Thermal Power Plants Based on the Source of Heat

Coal, natural gas, petroleum are mined to serve as fuel.

A

Fossil fuel power

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13
Q

Types of Thermal Power Plants Based on the Source of Heat

This is the least sustainable power plant and the most used in the world.

A

Fossil fuel power

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14
Q

Types of Thermal Power Plants Based on the Source of Heat

Fuel from plant matter that is grown and processed.

A

Biofuel

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15
Q

Types of Thermal Power Plants Based on the Source of Heat

The fission or splitting of heavy radioactive atoms releases large amounts of energy with less massive radioactive atoms as a by-product.

A

Nuclear power

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16
Q

Geothermal comes from the Greek words “___”, which means “___”, and “_______”, which means “____”.

A

geo - earth
thermos - heat

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17
Q

Types of Thermal Power Plants Based on the Source of Heat

Heat from the depths of the Earth is used.

A

Geothermal power

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18
Q

Types of Thermal Power Plants Based on the Source of Heat

Radiation from the sun is harvested by photovoltaic cells.

A

Solar power

19
Q

When an energy resource is renewable and has very little negative impacts on the environment, it is also called…

A

green energy

20
Q

Refers to the way a resource is used so it is not depleted or permanently destroyed.

A

sustainability

21
Q

This kind of power plant is widely used in countries around the pacific ring of fire.

A

geothermal power plants

22
Q

Enumerate the 4 parts of a geothermal power plant.

A
  • Geothermal Vent
  • Steam Production Unit
  • Steam Turbine
  • Condenser
23
Q

Parts of a Geothermal Power Plant

Main access point of a geothermal power plant to the source of heat.

A

Geothermal Vent

24
Q

Parts of a Geothermal Power Plant

A geothermal vent should have a temperature range between _ and _ for the plant to generate electricity.

A

150°C – 370°C

25
Q

Parts of a Geothermal Power Plant

Heated water from the geothermal vent is made into steam.

A

Steam Production Unit

26
Q

Parts of a Geothermal Power Plant

Heat-resistant, specialized turbines that are resistant to heat are connected to the generator to produce electricity.

A

Steam Turbine

27
Q

Parts of a Geothermal Power Plant

Where the steam condenses back into water and fed into the geothermal vent.

A

Condenser

28
Q

Types of Geothermal Power Plants Based on Steam Utilization

Enumerate the 3 types of geothermal power plants based on steam utilization.

A
  • Dry Steam Geothermal Power Plant
  • Flash Steam Geothermal Power Plant
  • Binary Steam Geothermal Power Plant
29
Q

Types of Geothermal Power Plants Based on Steam Utilization

Water that is superheated by Earth is turned into dry steam.

A

Dry Steam Geothermal Power Plant

30
Q

Types of Geothermal Power Plants Based on Steam Utilization

It is saturated steam—it has no suspended water droplets in liquid form.

A

Dry Steam

31
Q

Types of Geothermal Power Plants Based on Steam Utilization

Pumps up the heated water into the flash tank.

A

Flash Steam Geothermal Power Plant

32
Q

Types of Geothermal Power Plants Based on Steam Utilization

The sudden change in conditions in the tank makes the heated water turn into steam, releasing kinetic energy.

A

Flash Steam Geothermal Power Plant

33
Q

Types of Geothermal Power Plants Based on Steam Utilization

Heated water or steam surges into a heat exchanger. The piping is immersed in another liquid with a lower evaporating temperature than water.

A

Binary Steam Geothermal Power Plant

34
Q

Types of Geothermal Power Plants Based on Steam Utilization

Involves two liquids, hot water or steam, and another liquid with a lower evaporating point than water.

A

Binary Steam Geothermal Power Plant

35
Q

Types of Geothermal Power Plants Based on Steam Utilization

Dry Steam and Flash Steam Geothermal Power Plants have to have a temperature of around _.

A

350°C

36
Q

_ _ use the transfer of heat to do work.

A

Heat pumps

37
Q

They make one side hot, and the other side cold by doing work.

A

Heat Pumps

38
Q

Two kinds of geothermal heat pumps.

A
  • closed loop system
  • open loop system
39
Q

Geothermal Heat Pumps

Pipes are filled with water or refrigerant that courses through Earth.

A

Closed Loop System

40
Q

Geothermal Power Plants

Water heated by the Earth is siphoned up and pumped into the home to heat up another liquid.

A

Open Loop System

41
Q

The Philippines uses _ for almost all of its power needs.

A

coal

42
Q

Geothermal Power Plants are responsible for _% of the Philippines’ power generation.

A

10.5

43
Q

Any phenomenon that involves the study of charges at rest or are moving is called….

A

electricity

Science 9 (Finals) (12 decks)

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