The energy carrier wood is a renewable energy source. The wood for producing energy can be taken from the waste of carpenter works or trees that have disease or fall down from storms. How can you win energy from wood? The wood sticks or pallets that are burned, generate heath and this is were the energy comes from. Also something that is associated with wood a lot is charcoal. Charcoal is a solid fuel and is produced when air-dry wood is heated to 275 ° C without air and without oxygen. Charcoal is made by heating wood with the exclusion of air. In 2018, 141'000 tons of charcoal were used.
Advantage: Wood is a renewable energy source. With proper use, the growth of forests covers the need for firewood. This means that future generations can have the same resources as we do today.
Disadvantage: There must be enough space to store the wood. Sticks and loose wood chips in particular need a lot of space.
Interesting Examples
Wood energy can be used for many things. Here we have two common examples for you:
1. Wood energy is most commonly used to heat houses, flats or apartments. This is also an example that many are familiar with and for which wood energy is known.
2. Wood energy can also be used for electricity. How does this work? Wood can be burned in a boiler to heat water and produce steam. The steam can be used to power machines. Using steam to rotate turbines generates electricity
Deepening Knowlegde about WOOD
Here is the link to our post (https://2020.the-horse.education)
Quiz
How much trees are cut down each year?
a) 6 billion to 10 billion
b) 3.5 billion to 7 billion
c) 5.5 billion to 8 billion
Vocabulary
carpenter - Schreiner
charcoal - Holzkohle
wood chips - Holzschnitzel
steam - Dampf
rotate - drehen
Sources
Energy source wood for heating (journals.sagepub.com,1982)
Energy source wood for electricity (banr.nrel.colostate.edu,2020)
What is charcoal? (www.wikipedia.org,2020)
Use of energy charcoal (www.bfs.admin.ch,2018)
Quiz (www.ran.org,2017)
Advantage and Disadvantage (www.gesundes-haus.ch)
Pic wood pellets (www.power-technology.com)
Pic heating system (www.wood-pellet-mill.com)
Team
Nicole & Zeynep