ABOUT THE SPEAKER
Adam Grosser - Venture capitalist
Adam Grosser is a general partner at Foundation Capital -- and a refrigeration visionary.

Why you should listen

Adam Grosser is a venture capitalist, working with startups that are exploring new ideas in data communications, electronics and energy management. With a background in engineering and entertainment, he enjoys looking for opportunities that map over a few of his passions -- which also include greentech.

His passion for a sustainable solution to refrigeration -- for storing food and medicines -- led to the project he describes in his 2007 TEDTalk. 

 

More profile about the speaker
Adam Grosser | Speaker | TED.com
TED2007

Adam Grosser: A mobile fridge for vaccines

Adam Grossert和他的可持续冰箱

Filmed:
973,042 views

Adam Grosser的项目是关于建造一种不需使用电的冰箱,并利用它把重要的需要冷藏的医疗物品运往世界各地的村庄和诊所。目前通过对一些旧技术的调整,他已经有一套系统可以做到这一点。
- Venture capitalist
Adam Grosser is a general partner at Foundation Capital -- and a refrigeration visionary. Full bio

Double-click the English transcript below to play the video.

00:13
This is a work in process处理,
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这项工作目前还在进行中
00:16
based基于 on some comments注释 that were made制作
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主要是基于先前的一些意见
00:19
at TEDTED two years年份 ago
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两年前在TED所提出的
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about the need for the storage存储 of vaccine疫苗.
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关于疫苗的储藏问题
00:24
(Music音乐)
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(音乐)
00:25
(Video视频) Narrator旁白: On this planet行星,
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在29年以前,我有这样一位热能学老师。
00:26
1.6 billion十亿 people
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他讲过一些关于吸收作用和制冷的相关知识
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don't have access访问 to electricity电力,
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之后我一直詺记于心中
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refrigeration冷藏
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它有些像斯特林发动机
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or stored存储 fuels燃料.
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它很厉害但是你不知道它能用在什么地方
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This is a problem问题.
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1858年Ferdinand Carre发明了它
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It impacts影响:
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但是他没法制造出来
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the spread传播 of disease疾病,
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因为当时的工具条件不允许
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the storage存储 of food餐饮 and medicine医学
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后来有个疯狂的加拿大人Powell Crosley
00:49
and the quality质量 of life.
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在1928年將这个项目商业化,命名為Icyball
00:52
So here's这里的 the plan计划: inexpensive便宜 refrigeration冷藏 that doesn't use electricity电力,
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这是个绝妙的想法
00:55
propane丙烷, gas加油站, kerosene煤油 or consumables耗材.
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但我会告诉大家为什么没有成功
01:00
Time for some thermodynamics热力学.
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先解析一下运作原理
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And the story故事 of the Intermittent断断续续的 Absorption吸收 Refrigerator冰箱.
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这里有两个半球体,中间有一定的距离。
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Adam亚当 Grosser格罗瑟: So 29 years年份 ago, I had this thermo teacher老师
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一个装有工作介质,含水和氨。
01:09
who talked about absorption吸收 and refrigeration冷藏.
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另一个是冷凝器
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It's one of those things that stuck卡住 in my head.
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当你將一侧加热时,热的这一侧
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It was a lot like the Stirling斯特林 engine发动机:
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氨开始蒸发
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it was cool, but you didn't know what to do with it.
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然后它会在另一侧重新凝固
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And it was invented发明 in 1858, by this guy Ferdinand费迪南德 Carre卡雷,
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之后让它降到室温
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but he couldn't不能 actually其实 build建立 anything with it
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当氨重新蒸发时会与水结合
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because of the tools工具 of the time.
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回到先前的热的一侧
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This crazy Canadian加拿大 named命名 Powel鲍威尔 Crosley克罗斯利
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它会产生很强大的制冷效果
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commercialized商业化 this thing called the IcyBallIcyBall in 1928,
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这个想法虽然很好,但是不可行:它会炸掉
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and it was a really neat整齐 idea理念,
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因为用氨会产生很大的压力
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and I'll get to why it didn't work,
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如果你的加热不当
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but here's这里的 how it works作品.
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压力会超过每平方寸400磅,有毒的氨会四处飞溅。
01:34
There's two spheres and they're separated分离 in distance距离.
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但这个想法很不错。
01:36
One has a working加工 fluid流体, water and ammonia,
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所以到了2006年事情有了进展
01:39
and the other is a condenser聚光器.
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我们可以用很多数据来计算研究
01:40
You heat up one side, the hot side.
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我们还得到斯坦福大学
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The ammonia evaporates蒸发
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热力学系的参与
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and it re-condenses重新冷凝 in the other side.
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基于大量流体力学的研究计算
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You let it cool to room房间 temperature温度,
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我们证明了大部分关于氨制冷的数据是错的
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and then, as the ammonia re-evaporates再蒸发 and combines联合收割机 with the water
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我们发现了一些无毒的制冷剂
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back on the erstwhile往昔的 hot side,
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能於極低蒸汽压下運作
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it creates创建 a powerful强大 cooling冷却 effect影响.
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这是从英国小组那里带来的——
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So, it was a great idea理念 that didn't work at all: it blew自爆 up.
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他們有很多优秀的冷冻学人才
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Because using运用 ammonia you get hugely巨大 high pressures压力
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在英国——
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if you heated加热 them wrong错误.
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并建立了一个试验台,并证明了
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It topped突破 400 psiPSI. The ammonia was toxic有毒的. It sprayed everywhere到处.
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我们可以造出低压力,无毒的制冷器
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But it was kind of an interesting有趣 thought.
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以下是运作原理
02:10
So, the great thing about 2006 is
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你可以在煮食炉灶上加热它
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there's a lot of really great computational计算 work you can do.
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全世界大部分人都有煮食炉灶吧
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So, we got the whole整个 thermodynamics热力学 department
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无论燃料是骆驼粪便或木材。
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at Stanford斯坦福 involved参与 --
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加热30分钟,之后凉一个小时
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a lot of computational计算 fluid流体 dynamics动力学.
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把它放入容器中
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We proved证实 that most of the ammonia refrigeration冷藏 tables are wrong错误.
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那么它就可以制冷24个小时
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We found发现 some non-toxic无毒 refrigerants制冷剂
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它看上去是这样的,这是第5个样机,还不是太完美。
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that worked工作 at very low vapor pressures压力.
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重大约8磅,它是这样用的。
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Brought in a team球队 from the U.K. --
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把它放入一个15升的容器中,大约三加仑,
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there's a lot of great refrigeration冷藏 people,
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它就可以冷却到冰点之上
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it turned转身 out, in the U.K. --
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高于冰点3度
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and built内置 a test测试 rig操纵, and proved证实 that, in fact事实,
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在30度的环境中保持24小时,而且它很便宜。
02:37
we could make a low pressure压力, non-toxic无毒 refrigerator冰箱.
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我们可以大批量的制造,价格约25美元。
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So, this is the way it works作品.
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小批量的价格约40美元。
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You put it on a cooking烹饪 fire.
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我们可以造出
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Most people have cooking烹饪 fires火灾 in the world世界,
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任何人都能拥有的冰箱
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whether是否 it's camel骆驼 dung or wood.
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谢谢
02:47
It heats预赛 up for about 30 minutes分钟, cools冷却 for an hour小时.
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(鼓掌)
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Put it into a container容器
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02:53
and it will refrigerate冷藏 for 24 hours小时.
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02:55
It looks容貌 like this. This is the fifth第五 prototype原型. It's not quite相当 doneDONE.
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02:59
Weighs晕死 about eight pounds英镑, and this is the way it works作品.
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03:02
You put it into a 15-liter-升 vessel船只, about three gallons加仑,
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03:06
and it'll它会 cool it down to just above以上 freezing冷冻 --
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03:08
three degrees above以上 freezing冷冻 --
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03:10
for 24 hours小时 in a 30 degree C environment环境. It's really cheap低廉.
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03:13
We think we can build建立 these in high volumes for about 25 dollars美元,
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03:16
in low volumes for about 40 dollars美元.
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03:18
And we think we can make refrigeration冷藏
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03:21
something that everybody每个人 can have.
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03:22
Thank you.
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03:23
(Applause掌声)
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Translated by yu wang
Reviewed by Calvin Chun-yu Chan

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ABOUT THE SPEAKER
Adam Grosser - Venture capitalist
Adam Grosser is a general partner at Foundation Capital -- and a refrigeration visionary.

Why you should listen

Adam Grosser is a venture capitalist, working with startups that are exploring new ideas in data communications, electronics and energy management. With a background in engineering and entertainment, he enjoys looking for opportunities that map over a few of his passions -- which also include greentech.

His passion for a sustainable solution to refrigeration -- for storing food and medicines -- led to the project he describes in his 2007 TEDTalk. 

 

More profile about the speaker
Adam Grosser | Speaker | TED.com