Shadowing-Übung: How does a nuclear power plant work? - Englisch Sprechen Lernen mit Video
Lektion wird erstellt...
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Electra -Belle has seven nuclear power plants, four in Doule and three in Tiange,
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covering half of the electricity consumption in Belgium without producing CO2.
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But how exactly does a nuclear power plant work?
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A nuclear power plant works to a large extent like a conventional thermal power plant.
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Water is converted into steam, which drives a turbine connected to a generator.
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This generator converts the mechanical energy into electrical energy.
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The only difference is that the heat, which converts water into steam, is produced by nuclear fission and not by burning coal, natural gas or biomass.
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The nuclear power plants of Duhl and Tiange use fissile uranium oxide.
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Uranium oxide is compressed into fuel pellets and packed into sealed fuel rods.
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Multiple rods in turn form fuel elements which are immersed in water within a reactor vessel made of 20 cm thick steel.
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The reactor vessel is subsequently hermetically sealed.
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The fission of the uranium can now begin by bombarding it with neutrons.
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In each fission, two or three neutrons are released.
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They in turn cause new fissions and thus creating a chain reaction.
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In a nuclear reactor, it's important that this chain reaction is controlled.
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After each fission, only one released neutron should cause a new fission.
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Boric acid in the water of the reactor vessel and lowered control rods absorb the oversupply of neutrons.
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By lowering all the control rods at the same time, the chain reaction is stopped within 1 .3 seconds.
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A nuclear power plant with a pressurized water reactor, such as Dool and Tiange, has three completely separated water circuits.
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A primary circuit, a secondary circuit, a tertiary circuit.
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In the primary circuit, the heat released during the fission of the uranium nuclei heats
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up the water in the reactor vessel to the temperature of 320 degrees Celsius.
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The pressure regulator keeps everything under high pressure, so the water does not boil or form steam hence the name High Pressure Reactor.
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The hot water passes via the primary circuit to a heat exchanger or steam generator.
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This is a cylindrical device with thousands of pipes in reverse U shape.
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The water runs through these pipes and gives the heat to the water of the secondary circuit, which flows alongside the exterior of the pipes.
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The water in the secondary circuit heats up and turns into steam.
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The steam from the steam generators drives one or more steam turbines.
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These turbines consist of a series of blades installed on a shaft.
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The high pressure of the steam causes the shaft to rotate very fast.
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This, in turn, drives a generator, which ultimately produces electricity, somewhat like a dynamo on a bicycle.
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Transformers increase the voltage of the electricity produced by the generator, allowing transportation of the electricity to the end users with as little loss as possible.
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To cool down, the steam coming from the turbines passes through a condenser.
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The cooling water from the tertiary circuit passes through the tubes of the condenser.
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In Dool, this cooling water comes from the schelder, in tiage, from the mass.
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The steam from the secondary circuit condenses to water and is returned to the steam generator to be heated again to steam.
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The warmed cooling water is brought to the cooling tower.
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There, it cools through contact with an ascending airflow, the natural chimney effect as it were.
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The majority of this water is collected in a basin at the bottom of the cooling tower
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and then returned to the condenser.
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Almost all the water is subsequently discharged back into the schelder or the mass.
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Only a small part leaves the cooling tower as water vapor.
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Wortschatz und Sprechhinweise zu dieser Lektion
Dieses Video enthält 42 Sätze und 605 Wörter zum Nachsprechen. Der gesprochene Teil dauert 3:56. Der Sprecher spricht in natürlichem Tempo, etwa 154 Wörter pro Minute, ähnlich wie im Alltagsgespräch. Nur 70 % der Wörter gehören zu den 3.000 häufigsten im Englischen, der Wortschatz ist also anspruchsvoll.
Wichtiger Wortschatz in diesem Video
15 lernenswerte Wörter aus dem Video, mit Aussprache und Bedeutung:
| Wort | Aussprache | Bedeutung |
|---|---|---|
| circuit Substantiv | /ˈsɝ.kɪt/ | Umlauf |
| generator Substantiv | /ˈdʒɛnəɹeɪtə(ɹ)/ | Generator |
| reactor Substantiv | /ɹiˈæktɚ/ | Reaktor |
| vessel Substantiv | /ˈvɛsəl/ | Schiff, Boot |
| uranium Substantiv | /ˌjuː.ˈɹeɪ.ni.əm/ | Uran |
| turbine Substantiv | /ˈtɜː.baɪn/ | Turbine |
| pipe Substantiv | /ˈpaɪp/ | Flöte |
| convert Verb | /kənˈvɝt/ | konvertieren, umwandeln |
| seal Substantiv | /siːl/ | Stempel, Siegel |
| subsequently Adverb | /ˈsʌb.sɪ.kwənt.li/ | anschließend, danach |
| shaft Substantiv | /ˈʃɑːft/ | Schaft |
| oxide Substantiv | /ˈɑksaɪd/ | Oxid |
| tertiary Adjektiv | /ˈtɜː.ʃi.ə.ɹiː/ | tertiär |
| extent Substantiv | /ɪkˈstɛnt/ | Umfang, Ausdehnung |
| element Substantiv | /ˈɛləmənt/ | Element |
Phrasal Verbs, die du hören wirst
| Wort | Aussprache | Bedeutung |
|---|---|---|
| cool down Verb | /kuːl ˈdaʊn/ | sich abkühlen, abkühlen |
| heat up Verb | erhitzen, aufheizen | |
| run through Verb | durchgehen |
Aussprache, auf die du achten solltest
- Die „th“-Laute: thick /θɪk/, thermal /ˈθɜːməl/
- Die Laute „sh“ und „zh“: shaft /ˈʃɑːft/, tertiary /ˈtɜː.ʃi.ə.ɹiː/, consumption /kənˈsʌmp.ʃən/, conventional /kənˈvɛnʃənl̩/, fission /ˈfɪʃən/
- Lange Wörter – auf die Betonung achten: generator /ˈdʒɛnəɹeɪtə(ɹ)/, electricity /ɪˌlɛkˈtɹɪsɪti/, uranium /ˌjuː.ˈɹeɪ.ni.əm/, subsequently /ˈsʌb.sɪ.kwənt.li/, tertiary /ˈtɜː.ʃi.ə.ɹiː/
So übst du mit diesem Video
- Höre dir das ganze Video einmal an, ohne zu sprechen, und notiere die Wörter, die du nicht kennst.
- Beginne mit 0,75-facher Geschwindigkeit, sprich Satz für Satz nach und wechsle zur normalen Geschwindigkeit, sobald es leichtfällt.
- Nimm dich auf und vergleiche mit dem Original; achte dabei auf Wörter wie circuit, generator, reactor.
Was ist die Shadowing-Technik?
Shadowing ist eine wissenschaftlich fundierte Sprachlerntechnik, die ursprünglich für die professionelle Dolmetscherausbildung entwickelt und durch den Polyglotten Dr. Alexander Arguelles populär gemacht wurde. Die Methode ist einfach aber wirkungsvoll: Du hörst englisches Audio von Muttersprachlern und wiederholst es sofort laut — wie ein Schatten, der dem Sprecher mit nur 1–2 Sekunden Verzögerung folgt. Anders als passives Hören oder Grammatikübungen zwingt Shadowing dein Gehirn und deine Mundmuskulatur, gleichzeitig echte Sprachmuster zu verarbeiten und zu reproduzieren. Studien zeigen, dass es Aussprachegenauigkeit, Intonation, Rhythmus, verbundene Sprache, Hörverständnis und Sprechflüssigkeit signifikant verbessert — was es zu einer der effektivsten Methoden für die IELTS Speaking-Vorbereitung und reale englische Kommunikation macht.