Geothermal Energy · 地热能
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| Geothermal/ˌdʒiːəʊˈθɜːml/ | 地热能 | dì rè néng |
| turbine/ˈtɜːbaɪn/ | 涡轮机 | wō lún jī |
| Volcanic/vɒlˈkænɪk/ | 火山 | huǒ shān |
| renewable/rɪˈnjuːəbl/ | 可再生 | kě zài shēng |
Heat from deep below
- Deep inside the Earth, rock is intensely hot.
- Geothermal 地热能 energy taps that underground heat.
- In some places the heat comes close to the surface.
- We can use it to warm buildings and make electricity.
来自深处的热量
- 在地球深处,岩石极其炽热。
- 地热(geothermal)能利用那地下的热量。
- 在有些地方,热量靠近地表。
- 我们能用它给建筑供暖并发电。
How it makes power
- Water is pumped down to the hot rock deep below.
- The heat flashes the water into high-pressure steam.
- The steam rushes up and spins a turbine 涡轮机.
- The turbine drives a generator, and the water is pumped back down.
它如何产生电
- 水被泵到深处下面的热岩石那里。
- 热量把水瞬间变成高压蒸汽。
- 蒸汽向上奔涌并转动一台涡轮机(turbine)。
- 涡轮机驱动发电机,水被泵回下面。
Geothermal energy comes from… · 地热能来自……
Geothermal energy taps the natural heat stored inside the Earth. · 地热能利用储存在地球内部的自然热量。
Where it works best
- It is easiest where hot rock is near the surface.
- Volcanic 火山 regions like Iceland are ideal.
- There, geothermal supplies heat and electricity cheaply.
- Elsewhere the hot rock is too deep to reach easily.
它在哪里效果最好
- 它在热岩石靠近地表的地方最容易实现。
- 冰岛等火山(volcanic)地区是理想的。
- 在那里,地热便宜地供应热量和电。
- 别处的热岩石太深,不易到达。
How geothermal power works · 地热发电如何工作
Follow Earth's underground heat up to electricity in the wires. · 跟随地球的地下热量向上到电线里的电。
Geothermal power is easiest where… · 地热发电在以下地方最容易……
Where volcanic activity brings hot rock close to the surface, like Iceland, geothermal is cheap and easy. · 在火山活动把热岩石带到靠近地表的地方,比如冰岛,地热便宜又容易。
Because Earth's heat keeps flowing, geothermal is a ____ energy source. · 因为地球的热量一直流动,地热是一种____能源。
Earth's internal heat is effectively endless, so geothermal is renewable. · 地球的内部热量实际上是无尽的,所以地热是可再生的。
The benefits
- Earth's heat keeps flowing, so it is renewable 可再生.
- It releases very little CO2 — no burning.
- It runs steadily day and night, in any weather.
- So it avoids the intermittency problem of solar and wind.
好处
- 地球的热量一直流动,所以它是可再生(renewable)的。
- 它释放很少的CO2——没有燃烧。
- 它日夜稳定运行,在任何天气下。
- 所以它避免了太阳能和风能的间歇性问题。
Geothermal power releases far less CO2 than burning coal. · 地热发电释放的CO2远少于燃烧煤。
Geothermal uses Earth's heat, not combustion, so it emits very little CO2. · 地热使用地球的热量,不是燃烧,所以它排放很少的CO2。
Select all · 所有 advantages of geothermal energy. · 选出地热能的所有优势。
Geothermal is renewable, low-CO2, and steady day and night — but only easy where hot rock is near the surface. · 地热可再生、低CO2、日夜稳定——但只在热岩石靠近地表的地方容易实现。
Geothermal's one big limit is location. It's renewable, low-carbon, and steady — better than solar or wind in some ways — but it's only cheap and easy where volcanic activity brings hot rock near the surface. A cloudy, wind-poor country over a volcanic hotspot (like Iceland) is perfectly placed; a flat, stable continent is not.
地热的一个大限制是位置。它可再生、低碳、稳定——在某些方面比太阳能或风能好——但它只在火山活动把热岩石带到靠近地表的地方才便宜又容易。一个多云、风少的国家位于火山热点上(比如冰岛)位置绝佳;一块平坦、稳定的大陆则不然。
Iceland's advantage:
- It sits on a volcanic hotspot, so scalding rock is just below the surface.
- Water pumped down comes back up as steam, spinning turbines for electricity — and piped hot water heats nearly every home.
- The same setup would cost a fortune to drill on a stable, cold plain far from any volcano.
冰岛的优势:
- 它坐落在火山热点上,所以滚烫的岩石就在地表下面。
- 泵下去的水以蒸汽的形式回来,转动涡轮机发电——而管道热水几乎给每个家供暖。
- 同样的装置在远离任何火山的稳定、寒冷的平原上钻探会花费一大笔钱。
Geothermal energy uses heat from inside the Earth: water pumped to hot rock returns as steam that spins a turbine. It is renewable, low-CO2, and runs day and night — avoiding solar and wind's intermittency. Its one big limit is location: it is easy only where volcanic activity brings hot rock near the surface.
地热能使用来自地球内部的热量:泵到热岩石的水以蒸汽的形式回来,转动涡轮机。它可再生、低CO2、日夜运行——避免了太阳能和风能的间歇性。它的一个大限制是位置:只在火山活动把热岩石带到靠近地表的地方才容易实现。