energy

/Tag: energy

March 2017

Energy resources in Zimbabwe

By |2017-03-27T08:57:36+02:00March 27th, 2017|Notes, O Level Geography, Ordinary Level Notes|

Wood is a popular fuel source in Zimbabwe. Image credit Flickr.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Energy resources in Zimbabwe

  • The major sources of Zimbabwe’s electrical energy are coal from Hwange and water at Kariba HEP station.
  • Wood makes small but significant contributions.
  • All the oil products used in […]
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Small scale energy sources: Wood stove

By |2017-03-27T08:36:43+02:00March 27th, 2017|Notes, O Level Geography, Ordinary Level Notes|

Wood stove. Image credit quadrafire.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Small scale energy sources and plants:Wood stove

  • A wood stove is a heating appliance capable of burning wood fuel and wood-derived biomass fuel, such as wood pellets.
  • Wood stove are usually made using a combination of metal(iron) and bricks
  • […]

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Small scale energy sources and plants:Bio-fuel

By |2017-03-27T08:20:38+02:00March 27th, 2017|Notes, O Level Geography, Ordinary Level Notes|

Jatropha plant. Image credit jatropha.org.za

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Small scale energy sources and plants:Bio-fuel

  • is a fuel that is produced through contemporary biological processes,
  • such as agriculture and anaerobic digestion,
  • rather than a fuel produced by geological processes such as those involved in the formation of fossil […]
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Small scale energy sources and plants:Solar energy

By |2017-03-27T08:01:42+02:00March 27th, 2017|Notes, O Level Geography, Ordinary Level Notes|

A Photo-voltaic power plant. Image credit oorjasolar.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Small scale energy sources and plants:Solar energy

  • Solar energy is converted into electrical energy in two ways
  • The first is through the use of solar panels
  • These are also known as photo voltaic power plants for reasons […]
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Small scale energy sources and plants:Biogas plant

By |2017-03-27T07:42:59+02:00March 27th, 2017|Notes, O Level Geography, Ordinary Level Notes|

Biogas Digestor in rural Zimbabwe. Image credit climatetracker.org

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Small scale energy sources and plants:Biogas plant

  • To install a bio-gas plant, a pit is dug underground near to the kitchen the depth of which is determined by the size of the plant the family wants […]
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Nuclear power: Factors affecting location

By |2017-03-27T07:29:39+02:00March 27th, 2017|Notes, O Level Geography, Ordinary Level Notes|

Pelindaba Nuclear station South Africa. Image credit thinkgeoenergy.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy: Nuclear power: Location factors

  • The pollution caused by nuclear power plants and the ever present danger of a melt down and nuclear fall-out have made such plants very sensitive in terms of location relative to […]
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Nuclear power: Introduction

By |2017-03-27T07:20:18+02:00March 27th, 2017|Notes, O Level Geography, Ordinary Level Notes|

Koeberg Nuclear Power Station South Africa. Image credit melkbos.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy: Nuclear power

  • Nuclear power production is similar to thermal power production in a number of ways.
  • Both require a fuel to heat water and convert it to steam.
  • However, in the case of nuclear power, […]
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Geothermal power: Locational factors

By |2017-03-27T07:08:07+02:00March 27th, 2017|Notes, O Level Geography, Ordinary Level Notes|

A geothermal station in Iceland. Image credit ucsusa.org

ZIMSEC O Level Geography Notes: Natural Resources: Energy: Geothermal power locational factors

  • Geothermal power can only be generated in areas of active volcanicity.
  • These areas are known as geothermal hotspots.
  • These are zones where volcanic activity underground makes rocks hot and these rocks […]
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Geothermal power: Introduction

By |2017-03-23T11:12:42+02:00March 23rd, 2017|Notes, O Level Geography, Ordinary Level Notes|

Geothermal Power Station. Image credit MediaWiki

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Geothermal power

  • Geothermal power is generated using steam rhythmically shooting out from underground at high pressure in the form of geysers.
  • To control the movement of steam, an intricate network of pipes is installed collecting and directing the […]
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Thermal Power: Locational Factors

By |2017-03-23T10:57:10+02:00March 23rd, 2017|Notes, O Level Geography, Ordinary Level Notes|

Cooling towers. Hwange Thermal. Image credit esi-africa.com

ZIMSEC O Level Geography Notes: Natural Resources: Energy:Thermal Power: Location Factors

Fuel source

  • Thermal power stations cab be located at the fuel source.
  • This is if the fuel is difficult to transport.
  • For example Hwange Thermal Power station is located at the coal fields.
  • The […]
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