Shadowing Practice: How Pumped Storage Power Plants Work (Hydropower) - Learn English Speaking with Video
Les maken...
1
So in this lesson, we're going to have a look at a special type of hydropower plant known as a pump storage power plant.
2
We've already looked at how various types of hydropower plant work, and this type is not much different from some of the others we've seen.
3
However, it's got quite a unique operating characteristic, which I'm going to discuss with you in a moment.
4
So we can see we've got our water inlet, and that is on the opposite side of this reservoir wall.
5
I'll spin around so we can actually go down and have a look at the inlet.
6
There is the inlet.
7
We can see we've also got a gate so we can close off the water inlet to the penstock.
8
We've then got our penstock which comes down, comes all the way down the hill.
9
This is actually quite a large head of pressure or a large head to have with this type of power plant.
10
Now having a large to medium head is a characteristic of a pump storage power plant.
11
What's unusual here is that the penstock is split into two and feeds two separate turbines.
12
Remember, you don't normally see that on power plants where you have a medium to large head.
13
Normally, one penstock will supply one turbine.
14
Now, I'm gonna go and have a look at the turbines and generators from the outside, because I did actually try and look earlier from inside and it's quite cramped.
15
We can see that we've got a turbine runner which is housed within this casing, and the water itself comes from the penstock.
16
You can see it coming in here.
17
It's fed to the turbine runner, And then it's discharged and it will go out through the draft tube and into the river.
18
See if we can find the draft tube.
19
And this is it here, and on the opposite side, we also have another draft tube.
20
So this is very similar in a way to some of the other hydro plants that we looked at.
21
It's just that the head is much larger.
22
If we've got a larger head, then that means we can have either a Pelton type turbine
23
or a Francis type turbine we're not going to have a Kaplan type turbine because the head is simply too large.
24
Pump storage power plants though only utilize a Francis type turbine.
25
They do not use Pelton type turbines or Kaplan.
26
And there's a very simple reason for this.
27
Francis type turbines can be used to pump water back up the mountain.
28
That means we can generate electricity when water flows down the mountain
29
and then we can pump the water back up again to the upper reservoir in order to refill the upper reservoir.
30
But why would we do this?
31
Why would we pump water back up and then let water back down again later?
32
Well a pump storage hydropower plant is very similar to a battery, except we're not storing chemical energy.
33
We're actually storing the potential energy of the water at a higher elevation.
34
Let's imagine for a moment that it's a very sunny, windy day.
35
And that means that we're generating a lot of electricity from wind turbines and solar power.
36
This also means that electricity is cheap.
37
It's in abundance.
38
So imagine we're paying one cent per kilowatt hour just to keep things simple.
39
Now it might be that the people operating this pump storage plant think
40
that one cent per kilowatt hour is very cheap
41
and they'll buy the electricity in order that they can power the Francis turbines and pump the water from the lower reservoir,
42
in this case a river, up to the upper reservoir.
43
And they'll do this all day because it's been sunny all day and there's also been a lot of wind, so we've got a lot of cheap electricity.
44
When the upper reservoir's full, and this may take eight to 10 hours,
45
maybe more, maybe less, we'll hold on to all of this stored potential energy.
46
And what we'll do, we'll wait until it's dark And all of a sudden, all of that abundant electrical supply that was provided by the sun from solar power,
47
and maybe the wind dies down as well, all of that abundant electrical power will disappear.
48
It'll no longer be available in the national grid.
49
If you like this video and would like to see more engineering related tutorials, then check out some of the links in the video description area.
50
And if you click on these links, you'll get a special discount price for all of our engineering video courses.
51
If you wanna support the channel, then please do like this video or share it on social media.
52
Really does help us out.
53
You can also leave a comment in the comment section.
54
And if you've got any questions, then please just ask, and I will try to respond to you within 48 hours.
55
Thanks very much for your time.
✨ Aanbevolen Video
C11
59 zinnen
How does a Thermal power plant work?
University StudentsWorking Adults
C19
169 zinnen
SpaceX Is HIDING Something! | Starship Update
IELTS PrepTOEFL PrepUniversity Students
C12
84 zinnen
Kathy's dissertation on water pumps: IELTS LISTENING Vol 5 Test 6 Section 3
IELTS PrepTOEFL PrepUniversity Students
C110
54 zinnen
What If It Rains Bananas For A Single Day? (Spoiler: It's Bad)
IELTS PrepTOEFL PrepUniversity Students
C11
150 zinnen
Parallel Pump Operation
Business EnglishUniversity StudentsWorking Adults
B16
26 zinnen
Phát âm chuẩn cùng VOA - Anh ngữ đặc biệt: Bladeless Wind-Powered Generator (VOA)
American AccentIELTS PrepTOEFL PrepUniversity Students
C14
28 zinnen
SVINutes: Collateral Circulation
IELTS PrepTOEFL PrepUniversity Students
B23
61 zinnen
RE3 Unit 7A
IELTS PrepTOEFL PrepUniversity Students
C11
106 zinnen
EDFR GWO BTT Training Center - Nicolas Riou Wind
Business EnglishUniversity StudentsWorking Adults
B23
13 zinnen
Dig Deep, Power a City
IELTS PrepTOEFL PrepUniversity Students
C12
31 zinnen
bài học 13 - 2
IELTS PrepTOEFL PrepUniversity Students
B24
285 zinnen
How The US Stole The Panama Canal, Mapped
American AccentIELTS PrepTOEFL PrepUniversity Students
Woordenschat en spreektips bij deze les
Deze spreekles op niveau C1 is gebaseerd op de video “How Pumped Storage Power Plants Work”. Deze woorden komen het vaakst terug: turbine, plant, type, pump, penstock. Deze video bevat 55 zinnen en 835 woorden om na te spreken. Het gesproken deel duurt 4:54. De spreker praat in een natuurlijk tempo van ongeveer 171 woorden per minuut, dicht bij een alledaags gesprek. 84% van de woorden hoort bij de 3.000 meest gebruikte Engelse woorden; de rest kun je beter vooraf bekijken.
Belangrijke woorden in deze video
De 15 moeilijkste woorden uit de video, met uitspraak en betekenis:
| Woord | Uitspraak | Betekenis |
|---|---|---|
| turbine zelfstandig naamwoord | /ˈtɜː.baɪn/ | turbine |
| reservoir zelfstandig naamwoord | /ˈɹɛz.ə(ɹ).vwɑɹ/ | reservoir |
| inlet zelfstandig naamwoord | /ˈɪnlət/ | inham |
| hydropower zelfstandig naamwoord | waterkracht, hydro-energie | |
| abundant bijvoeglijk naamwoord | /əˈbʌn.dənt/ | overvloedig, rijkelijk voorhanden |
| characteristic zelfstandig naamwoord | /ˌkæɹ(ə)ktəˈɹɪstɪk/ | trekje, karakteristiek |
| sunny bijvoeglijk naamwoord | /ˈsʌni/ | zonnig |
| hydroelectric bijvoeglijk naamwoord | /ˌhʌɪdrəʊɪˈlɛktrɪk/ | hydro-elektrisch |
| refill zelfstandig naamwoord | /ˈɹiː.fɪl/ | tankbeurt |
| windy bijvoeglijk naamwoord | /ˈwɪn.di/ | winderig |
| tutorial zelfstandig naamwoord | /ˌtjuːˈtɔːɹɪəl/ | snelcursus, tutorial |
| abundance zelfstandig naamwoord | /əˈbʌn.dn̩s/ | overvloed |
| discharge werkwoord | /dɪsˈtʃɑɹdʒ/ | voltooien |
| generator zelfstandig naamwoord | /ˈdʒɛnəɹeɪtə(ɹ)/ | generator |
| disappear werkwoord | /dɪsəˈpɪɹ/ | verdwijnen, verzwinden |
Phrasal verbs die je zult horen
| Woord | Betekenis |
|---|---|
| back up werkwoord | teruggaan |
| check out werkwoord | onderzoeken |
| go down werkwoord | afdalen |
| go out werkwoord | naar buiten gaan |
Grammatica in deze video
De structuren die de spreker het meest gebruikt, met de exacte woorden uit de video:
| Structuur | In de video |
|---|---|
| Voorwaardelijke zinnen if + zin, will/would + werkwoord — een voorwaarde en het gevolg | If you like this video and would like · if you click on these links, you'll get |
| Lijdende vorm be + voltooid deelwoord — het gaat om wat er gebeurt, niet om wie het doet | is split · is housed · was provided |
Uitspraak om op te letten
De spreker gebruikt 28 samentrekkingen en verkorte vormen, zoals we've, we're, we'll. Spreek ze kort uit, zoals je ze hoort.
- Lange woorden — let op de klemtoon: characteristic /ˌkæɹ(ə)ktəˈɹɪstɪk/, hydroelectric /ˌhʌɪdrəʊɪˈlɛktrɪk/, generator /ˈdʒɛnəɹeɪtə(ɹ)/
Klanken die Nederlandstaligen lastig vinden:
- Stemhebbende eindmedeklinker — /b/, /d/, /g/, /z/, /v/ niet verscherpen: utilize /ˈjuː.tɪ.laɪz/, discharge /dɪsˈtʃɑɹdʒ/
- /w/ — met ronde lippen: reservoir /ˈɹɛz.ə(ɹ).vwɑɹ/, kilowatt /ˈkɪ.ləˌwɒt/, windy /ˈwɪn.di/
Zo oefen je met deze video
- Luister de hele video één keer zonder te spreken en noteer de woorden die je niet kent.
- Begin op 0,75× snelheid, spreek zin voor zin na en ga terug naar normale snelheid zodra het makkelijk gaat.
- Neem jezelf op en vergelijk met het origineel; let daarbij op woorden als turbine, reservoir, inlet.
Wat is de Shadowing-techniek?
Shadowing is een wetenschappelijk onderbouwde taalleermethode die oorspronkelijk is ontwikkeld voor professionele tolkentraining en gepopulariseerd door polyglot Dr. Alexander Arguelles. De methode is eenvoudig maar krachtig: je luistert naar native Engelse audio en herhaalt het onmiddellijk hardop — als een schaduw die de spreker volgt met slechts 1–2 seconden vertraging. In tegenstelling tot passief luisteren of grammaticadrills, dwingt shadowing je hersenen en mondspieren om echte spraakpatronen tegelijkertijd te verwerken en te reproduceren. Onderzoek toont aan dat het de uitspraaknauwkeurigheid, intonatie, ritme, verbonden spraak, luisterbegrip en spreekvaardigheid aanzienlijk verbetert — waardoor het een van de meest effectieve methoden is voor IELTS Speaking-voorbereiding en echte Engelse communicatie.