How to Heat Your Home Without Hurting the Planet | Kathy Hannun | TED Fellows

54,293 views ・ 2021-06-28

TED


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翻译人员: Frank Xu 校对人员: Helen Chang
00:14
[SHAPE YOUR FUTURE]
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[塑造你的未来]
00:17
One of the hallmarks of living in a technologically advanced society
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活在一个技术发达社会的标志之一
00:20
is even the little details of life that seem mundane
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便是即使生活看起来平凡的小细节
00:24
end up being astonishing,
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实际上也十分令人惊奇,
00:25
like the fact that it takes five gallons of water to produce a walnut,
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比如说产出一颗核桃 需要19升水这一事实,
00:29
or that half the plastic that's ever been made
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或者在所有已经生产出的塑料里
00:32
has been made in the past 15 years.
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有一半是在过去的15年里被制造的。
00:34
My favorite of these examples is what it takes
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这些例子里我最喜欢的是
将一个房间保持室温需要什么。
00:37
to keep a room room temperature.
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00:39
Allow me to explain.
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让我来解释一下。
00:41
Heating is generally done by combusting a fossil fuel.
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供暖通常是通过燃烧 一种化石燃料来做到的。
00:44
So first, we have to find the fuel.
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所以首先,我们要找到燃料。
00:46
Unfortunately, it tends to be buried
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不幸的是,燃料通常被埋藏在
00:48
more than a kilometer under the earth's surface,
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地球表面下超过一公里,
00:50
and all too often, in inconvenient places,
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而且通常不便触及的地方。
00:52
like the Arctic Circle, nations in conflict
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比如说北极圈,战乱国家
00:54
or under the bottom of the ocean.
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或者在海底。
00:56
Then there's the fact that the substance takes 60 to 600 million years
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除此以外还有这些物质 需要6千万到6亿年的时间
01:01
to form from dead plankton.
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由死去的浮游生物转变而成这一事实。
01:03
So there's that issue.
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所以那是个问题。
01:04
We drill these incredibly deep holes to get it.
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为了获取燃料我们钻出这些深深的孔。
01:07
Then we pipe it, truck it
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之后我们用管道输送,
01:09
and ship it in tankers across the world to refineries,
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用卡车还有运油船 送到世界各地的精炼厂。
01:12
which are these incredibly expensive industrial facilities
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而精炼厂是一些十分昂贵的工业设施。
01:15
that take in crude oil and gas,
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它们接收原油和天然气,
01:17
which are just a bunch of different hydrocarbon molecules,
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两者都只是不同的氢碳化合物分子,
01:20
in order to sort those molecules into refined products.
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精炼厂接收它们 来将那些分子分炼为精炼产品。
01:23
Refined natural gas is then delivered to homes and businesses
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之后精炼过的天然气 被送到住宅和商业场所,
01:27
via an invisible interstate highway system millions of miles long.
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而这是通过一个长达几百万英里的 隐形州际快速系统做到的。
01:32
It's invisible because it's underground.
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之所以说这系统是隐形的 是因为它在地下。
01:34
There's so much pipeline in this system that entire steel mills have been built
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这系统里的管道 多到数家钢厂被建造出来
01:39
only to produce pipeline for this system.
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就只为了给这个系统生产管线。
01:42
And because there are millions of miles of gas
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而因为有气体以几百万英里范围
01:46
getting pumped beneath us at high pressure at all times,
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在我们脚下被用泵不间断地高压输送,
01:49
engineers send these intelligent robots called "smart pigs"
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工程师将这些被叫做 “聪明小猪”的智能机器人
01:53
through the pipelines to check for safety defects.
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送进这些管道来检查安全上的瑕疵。
01:56
Doing this is called "pigging the pipeline."
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这个过程被叫做“小猪清管”。
01:58
(Pig snort sound)
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(哼哧)
01:59
Yeah, that's a real thing.
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没错,这是真事儿。
02:00
But even with these precautions, there are accidents.
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但即便有这些预防措施, 还是有事故发生。
02:03
In 2010, the San Bruno natural gas pipeline exploded in California.
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在2010年,圣布鲁诺天然气管道 在加利福尼亚州发生了爆炸。
02:08
Eight people died.
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八人死亡。
02:10
Eyewitnesses reported the blast looked like a wall of fire 1,000 feet tall.
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目击者报道说爆炸看起来 像是一堵1000英尺高的火墙。
02:15
More recently, in 2018, excess pressure in natural gas pipelines in Massachusetts
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更近的一次,在2018年,位于 马萨诸塞州的天然气管道里的过量压力
02:20
resulted in explosions that killed somebody
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造成了致一人死亡的多起爆炸,
02:23
and forced 50,000 others from their homes.
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该事件还使其他五万人被迫从家撤离。
02:25
But, you know, despite all of this,
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但你知道,即便如此,
02:27
we're actually jealous of people who live close enough to these insane pipelines
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我们实际上还羡慕那些 住在离这些危险管道足够近的人们,
02:32
to get gas into their homes,
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因为管道能把天然气送到他们家里,
02:34
because everyone else is stuck with even worse options,
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而其他所有人则不得不接受 更糟的选项,
02:38
like fuel oil and propane.
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比如燃油和丙烷。
02:39
These fuels don't have pipelines in place for delivery,
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这些燃料没有管道来运送,
02:42
so instead, tens of thousands of trucks go from home to home
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所以取而代之的是数以万计的 卡车挨家挨户
02:46
in neighborhoods throughout the country,
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在乡间的各个社区里,
02:48
pumping these fuels into tanks in homeowners' basements and yards.
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将这些燃料泵到屋主们 位于地下室和院子里的储存罐里。
02:52
And regardless of what heating fuel you use -- gas, propane or oil --
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而不论你用哪种供暖燃料-- 天然气、丙烷或者燃油--
02:56
you better have a carbon monoxide detector
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你最好要有一个一氧化碳检测器
02:58
so your heating system doesn't accidentally kill you in the night,
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来保证你的供暖系统 不会在夜里意外把你杀死,
03:01
because hundreds of Americans die in exactly that way each year.
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因为每年数以百计的美国人 恰恰就是以这种方式丧命的。
03:05
So that's the system we have today.
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这就是我们现今所有的系统。
03:08
Safe to say, it has some downsides.
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可以肯定地说,它有一些缺点。
03:11
Don't get me wrong -- it's a marvel of human ingenuity,
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别误解了,它是人类智慧的一大成就,
03:13
but with some pretty serious drawbacks.
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但是也有些严重的缺点。
03:16
And the rigamarole of conventional heating feels even more over the top
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而传统制暖带来的繁琐 甚至更加令人感到夸张,
03:20
when you consider that every home
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因为当你考虑到每座住宅
03:21
is already sitting right on top of a vast reservoir of renewable energy:
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其实都正好已经被建造在 一片广大的可再生能源储备库上:
03:26
geothermal energy.
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那就是地热能。
03:28
Let's talk about geothermal energy.
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让我们来谈谈地热能吧。
03:30
Starting a few feet under the earth's surface,
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从地表以下几英尺开始,
03:32
the ground is awash in thermal energy.
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大地浸满了热能量。
03:35
This is why caves and wine cellars, they never get too hot or too cold.
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这就是为什么山洞和酒窖 永远不会变得太热或太冷。
03:38
They're just bathed in this low-grade heat.
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它们就这样被这种低位热量包裹着。
03:41
Geothermal heating systems draw on this heat,
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地热供暖系统汲取这种热量,
03:43
using what are called "ground loops,"
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使用这些被称为“地环路”的
03:45
which are just simple plastic pipes buried under the yard.
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埋在庭院里的简单塑料管道。
03:48
These ground loops are then connected to a heat pump that sits inside the home,
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然后这些地环路被连接到 放置在住宅里的一台热泵,
03:52
typically where a furnace once was.
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通常在之前火炉的位置上。
03:54
More and more homeowners are choosing geothermal over fuel-based options.
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越来越多的房主选择使用地热能而不是基于燃料的选项。
03:59
I see this shift up close every day,
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我每天都能近距离地看到这个改变,
04:01
because I cofounded a company to create a new kind of ground-up utility
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因为我联合创办了一家公司, 通过将从传统制热方式换为地热
04:05
by making it as easy and inexpensive as possible
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变得尽可能简单和便宜
04:08
to switch from conventional heating to geothermal.
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来创造出一种新型地面设施。
04:11
We've done this by creating a service
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我们通过创造出一项服务做到了这一点。
04:13
where homeowners can fill out a form on our website,
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在这项服务中,业主们 能在我们的网站上填出一张表,
04:15
we design a geothermal heating system for them,
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我们为他们设计一套地热制暖系统,
04:17
and then we install that system using purpose-built tools and equipment.
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然后我们使用特制工具和装备 来安装那个系统。
04:21
Once the installation is done,
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在安装完成后,
04:22
that home will have moved on from fossil heating forever,
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那栋房子将会永远脱离化石燃料制暖,
04:25
because those ground loops, they'll last as long as the home itself.
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因为那些地环路的寿命 将和房屋本身一样持久。
04:28
As each home switches over, a new kind of utility is taking hold --
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在每家更换的同时, 一项新的公共事业正在扎根:
04:32
a distributed utility,
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一项被分布的公共事业,
04:34
made up of homes exchanging renewable energy with the ground.
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由住宅与大地交换可再生能量构成。
04:38
This new infrastructure is simple, local and inexpensive to operate,
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这个新基础设施是简单、 本地化以及低操作成本的,
04:43
and it represents a permanent and wholesale shift
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它还代表着一次永久且大规模的
04:45
away from fossil fuels.
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自使用化石燃料向其它方式的转变。
04:47
The groundwork is being laid, so to speak,
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可以这么说,
04:49
for the idea that maybe we don't need to destroy the world
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为了我们或许不需要 毁掉世界来让我们的房间
04:52
in order to keep our rooms at a comfortable temperature.
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保持在一个舒适温度的理念, 基础工作正在进行。
04:55
Let's leave the Arctic Circle and the seafloor alone,
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让我们避开北极圈和海底,
04:58
bypass the refineries and the pipelines
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避开炼油厂和输油管,
05:00
and stop worrying that our families will accidentally be poisoned in the night.
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并停止担心我们的家人 会在夜里意外中毒。
05:04
Instead, let's use the massive amounts of energy
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取而代之的,让我们使用
05:07
that are already right there for the taking,
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就存在于地球上每栋建筑底下的
05:10
right beneath every building on earth.
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大量现成能源。
05:13
Thank you.
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谢谢。
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