Name: 燃料電池備份客車 -- 無排放的交通工具 (The fuel cell postbus -- An emissions-free drive)
Uploaded: 2021-01-14T06:23:56.000Z
Duration: 4 min 21 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

The future of public transportation is now.

The first five PostBuses with revolutionary fuel cell drive

have been in continuous operation in Brugg  since December 2011.

So far, this is still a large-scale pilot project carried out in close cooperation with various partners.

But if successful, it could permanently change  public transportation of the future.

During the five-year testphase alone,  PostBus will save 2000 tonnes of CO2.

The hydrogen fuelling station for busses in Brugg,  the first in Switzerland,

At the core of the system is an electrolyser, where water is split into hydrogen and oxygen,

The hydrogen thus obtained is stored in gaseous form  in a high-pressure tank.

Additional hydrogen is available in trailers  to secure a steady supply.

This hydrogen is a byproduct of the chemical industry.

The five vehicles can therefore  be fuelled quickly and safely, as needed.

The secret of the fuel cell PostBuses  lies in the fuel cell itself.

Hydrogen and oxygen are combined in a controlled environment at a so-called ion-exchange Membrane.

The membrane allows the hydrogen nuclei to pass through easily.

generating electric current to drive the electric engines of the fuel cell PostBuses.

On the other side of the membrane,  the hydrogen is combined with the oxygen again,

This reaction causes heat to be released, and therefore, what the fuel cell PostBuses emit,

A fuel cell drive system is considerably more efficient than a conventional internal combustion engine.

Fully fuelled, a fuel cell PostBus  has a range of approximately 250 km.

To further increase performance, the fuel cell PostBus  is equipped with a lythium-iron battery,

where electric energy is temporarily stored.

Every time the fuel cell PostBus brakes,  the electric engines generate power,

This is a significant efficiency advantage,

as PostBuses frequently have to slow down, stop,  and accelerate again.

There are many reasons why fuel cell technology  is the energy system of the future.

For PostBus, the environment and the passengers.