服务器里的北京 - 老北京网

查看: 8598|回复: 9

太阳能自行车道 Solar Bike Paths

发表于 2014-11-23 19:43:36 | 显示全部楼层 |阅读模式
本帖最后由 穎太世澤 于 2014-11-23 22:58 编辑 & t7 A* G6 x( c$ {0 V1 n0 a

/ x9 C( w$ k* m7 f5 Z7 ~: c! }$ j
* m) v, ?  h/ m& o$ W/ t

8 w- I( ]7 H3 A太阳能自行车道 Solar Bike Paths
# b6 X0 w* ~$ M& F: c1 _
3 V" ]+ G8 D* ]& `9 M
A Dutch company is about to unveil the world'sfirst-ever bike path built entirely of solar panels. It's about 230 feet long —you can traverse it in few seconds of pedaling.

+ E/ B( f% `9 ~$ x. u+ V
It seems pretty neat at first. But there's also agood argument that this is a really inefficient way to generate solar power:

7 w+ a4 t$ ?2 x1 f" z6 l* U% M

太阳能自行车道 Solar Bike Paths

太阳能自行车道 Solar Bike Paths

0 M! {0 f4 ^# e
3 h$ {; S6 W- R- n* n2 c' s' a) x
自行车道,是厂商SolaRoad所建,主体由数行硅晶体太阳能电池构成,以混凝土外框包裹并覆盖以一层透光的强化玻璃层 。其将于1112日向公众开放。
The bike path, built by SolaRoad, "is made up of rows of crystal line silicon solar cells, encased with in concrete and covered with a translucent layer of tempered glass." It will open to the public on November 12.

1 h" I% ]% H+ z0 n; ~, v
The glass that overlays the panels has to be tough enough to withstand the thousands of cyclists who will ride on the path every day

# _% z, r$ G2 s2 A

太阳能自行车道 Solar Bike Paths

太阳能自行车道 Solar Bike Paths
  m! x1 ~: {1 V9 x0 g# R
. Q. T9 Y0 n+ Z: B$ [7 N
But is this even practical? The bike path will cost roughly $3.7 million and, when it's fully built out to 330 feet in 2016, will generate enough electricity to power… three house holds. Not very cost-effective. (That's more than 1,000 times costlier than the price of rooftop solar electricity in the United States.)

( p. L0 P3 e0 K$ _1 C0 x8 ?
: j+ l% D$ }+ c
Of course, one big hope for solar bike paths — much like with the Solar Road ways project being tested in Idaho — is that they mightbe able to scale up and provide a lot of electricity in the future. After all,we have all this open space on our roads and bike paths. Why not put it to use?

3 k0 {; C& B/ X! z
6 s0 J+ O: |# _, P. r+ S0 B
太阳能道路- 太阳能自行车道 的缺点
The downsides of solar roads — and solar bike paths

/ ]9 k& P- t# K8 |
# h# i+ D% s, \
Unfortunately, there are some big drawbacks here. For one, solar panels sitting underneath roads and bike paths can get covered in dirt and mud and ice and snow, reducing their effectiveness. SolaRoad is hoping to address this by tilting the panels slightly and giving them a non-adhesive coating, so that the rain washes the dirt off. It remains to beseen how effective this is.

% M' y4 ~5 z6 Z! Y: K/ e5 s3 q! N- \/ v, q$ K; i' d( ?9 \0 D* [
A better approach would be to put solar roofs over the bike paths

2 f  |7 x* H, T/ p2 X1 u7 H- j6 V( E+ x% |3 j! m
8 I/ ^+ W) z5 K7 D* Y& H
Another big problem is that these panels aren't tilted toward the sun, the way rooftop photovoltaic panels are. According to The Guardian, that means they're expected to produce 30 percent less electricity than conventional panels.
# `% d7 J; c- P5 S7 p
) b  o; ~( y0 x
在国际可再生能源杂志上,克雷格•莫里斯认为,一旦你把诸多因素如,阴影、冬季的结冰,与为防止骑行者车滑倒的粗糙表面等项,那些能板的表现可能会更糟糕的多。 他不喜欢这整个主意:他说“在这里我希望关于这些糟糕想法的消息迅速传开,因而使该计划不致在其他地方复制。
Over at Renewables International, Craig Morris argues that the panels will probably perform much, much worse than that once you factor in shading, ice in the winter, and the rough surface needed to prevent bicyclists from slipping. He's sour on the whole idea: "Here's hoping news about how terrible the idea is gets around fast so that the projectis not copied elsewhere."
* X; l" E$ T9 b. K

0 `  g8 q/ }' i( l( ?
- v5 o! ?( F( H( K% J* k
Indeed, if you really wanted a solar-powered bike path, Morris notes, there might be an easier alternative. You could install roofs above parts of the bike paths and then install solar panels on the roofs.Less dirt. You can angle the panels. More electricity with less hassle. (Plus it would shield cyclists from the frequent rain, although it would be less pleasant on sunny days.)
4 h4 I3 ~* V6 f5 m

+ B( B3 I5 F" T: b- \6 W- Q: E
A more creative use for solar roads
) ~1 |  g5 {8 a( v. W

+ x: w. Q/ C0 |% p" g6 h
That said, even if solar roads and bike paths are unlikely to generate a ton of electricity for household consumption, they might have more modest uses. Which is why the technology may still be worth testing.

, {8 a& N# j/ S' k
& K; C& d' f/ m2 r! ~) G: c
TreeHugger网上,劳埃德阿尔特 点出 1家荷兰公司对太阳能道路的远景:“用传感器搜集交通流量信息,可以帮助改善交通管理,甚至可以让车辆自动引导、其他可能的功能是可变换的道路标记、伴随LED灯的符号,以及冬天道路的加热。最终,用作无线能量的系统。“
Over at TreeHugger, Lloyd Alter points to one Dutch company's vision for solar roads: "Sensors gathering information about traffic circulation can help improve traffic management, or even allow automatic vehicle guidance. Other possible functions are variable road markings, ‘tag-along' LED-lights and heating in winter. And eventually, a system for wireless energy."

2 e) s7 E. i7 D" |+ I5 O4 I
) J; }) U7 V2 Y% D6 q
/ V; J. L5 ?, a3 \7 V
It may be unlikely that solar roads will ever be practical enough to power electric cars zipping up and down the highway. But smaller sensors or road de-icing systems? That's not quite as far-fetched.

9 X% h' X3 W2 n' n. J4 T- m9 W. F3 O: _$ l

$ s7 b1 i7 e* j! a" E; j6 _( g
发表于 2014-11-23 19:59:44 | 显示全部楼层
发表于 2014-11-23 21:46:36 | 显示全部楼层
发表于 2014-11-23 21:47:24 | 显示全部楼层
29335379 发表于 2014-11-23 21:46; H% C8 J: m; o* T! P
5 O+ {* V5 b" P; L  K- g
 楼主 发表于 2014-11-23 22:26:49 | 显示全部楼层
老程-山里人家 发表于 2014-11-23 19:597 P3 R3 t, B8 _$ [
, ]1 g$ Z5 Z; h8 Y4 ^
外国人就是有傻劲,不惜花大把钱去实验,产生许多异想天开的想法,譬如文中的LED路标,甚至可变换图案,在夜间显示等‥,主要是想利用太阳能并普及化,因为未来的工业革命(第三次工业革命)将重在环保与节能,明日的明星产业除了3D打印,绿能无疑是首选,特别是太阳能,即使是3D打印都配备太阳能的规划,因为在没有电力的艰难环境只要有太阳能即可运作。 所以外国人可以说在胡烧钱! 但中国有句话「天道酬勤」,那家荷兰公司对太阳能道路的远景也只有在这种天马行空的思维与环境下产生及可能实现,这也是近代中国一直不如外国的地方!
$ e; C2 T! ?8 A3 n* M0 b9 r3 b' s2 Y! ~
 楼主 发表于 2014-11-23 22:42:52 | 显示全部楼层
本帖最后由 穎太世澤 于 2014-11-23 22:45 编辑 " w* n- V  Z' m. w9 k, U7 I
29335379 发表于 2014-11-23 21:47' C9 O! b* K$ |2 u# B
3 i8 P2 n) J& `0 C7 r( r
After all, we have all this open space on our roads and bike paths. Why not put it to use?
: l& _; g5 Z! Q+ X& z  k
发表于 2014-11-24 00:52:20 | 显示全部楼层
本帖最后由 29335379 于 2014-11-24 00:58 编辑
' d! ?1 K' \3 M
穎太世澤 发表于 2014-11-23 22:42
+ B! [/ Q; K3 c' G主要是实验太阳能,利用自行车道的空间,也可谓一举两得。和自行车与骑行者的关系在自行车道,和实验者的 ...

( k8 j# l7 j( e原来是这么回事,知道了。谢谢!{:soso_e181:}! o, d  C# x- E5 w2 V
发表于 2014-11-26 08:39:03 | 显示全部楼层
发表于 2015-8-24 10:52:23 | 显示全部楼层
{:soso_e179:} wealthy  infrastructure,sooner or later into rich!  l0 P! K4 K7 [/ V9 Y
发表于 2015-8-28 00:20:16 | 显示全部楼层
穎太世澤 发表于 2014-11-23 22:266 {9 r& t% G& u0 F* M2 I# z: B
外国人就是有傻劲,不惜花大把钱去实验,产生许多异想天开的想法,譬如文中的LED路标,甚至可变换图案, ...

* L) s! A( [/ l亏这傻劲,蒸汽机、飞机、电灯、计算机...都出来了。# ]( @/ s; Q9 H# p# n
( ^- u+ I# P2 }; M
您需要登录后才可以回帖 登录 | 注册老北京网


2000.11.1,老北京网自创办之日起,已经运行了 | 意见反馈|百度|谷歌|老北京网

GMT+8, 2020-9-23 00:15 , Processed in 0.214118 second(s), 20 queries , Gzip On.

道义 良知 责任 担当

CopyRight © 2000-2050 oldbeijing Inc. All Rights Reserved.