The most common form of solar cells are based on the photovoltaic (PV) effect
Two layer semi-conductor device produces a photovoltage or potential difference between the layers
No fuel cost or fuel supply problem
No pollution
High reliability
Small amount of power required
Depend on place and climate
Large scale:
Ocean navigation aid
Telecommunication system
Remote moni
A Sustainable City
Providing the highest quality of life with the lowest environmental footprint
100% Renewable Energy
Zero Waste
Net Zero Carbon
Fossil Fuel Free Zone
World cup park
1
Opening
Introduction
Purpose for establishing
Foundation course
Advantages & Disadvantages
Aim for develop
2
The contens
Video crip
3
Opening
Environmentalecologypark,
whichisinwestSeoul.
ItismadebySeoul Nanjilandfillecologyrestorationmovementwithsizeof3,471,090빕.
1. Introduction
4
Haneul(sky) park
1. Introduction
5
[ Introduction ]
Ⅰ. Need Of Alternative Energy
The need for alternative energy sources is getting urgent, hence the development of renewable energy is moving fast. Nationally and internationally various individuals and research companies are creating new and exciting energy systems. Some of these apparatus are great works and need improving for massive use. Politician's world-wide are dra
1.1 New Renewable Energy
New Renewable Energy= new energy+ Renewable Energy
New energy : future energy
Renewable energy: almost indefinitely energy
condition
1 Replace petroleum
2 Carbon emits less than petroleum.
3 Sustainable energy can be used without depletion
What is Bioenergy?
Bioenergy is renewable energy made available from materials derived from biological sources. Biomass is any organic material which has stored sunlight in the form of chemical energy. As a fuel it may include wood, wood waste, straw, manure, sugarcane, and many other byproducts from a variety of agricultural processes.
So, Why do we produce Bioenergy?
One reason governments
염료 감응형 태양전지는 반도체 접합형 태양전지와는 달리, 고체/액체 접합의 광전
기화학형이며 가시광선을 흡수하여 전자-홀 쌍 (electron-hole pair)을 생성할 수 있
는 감응성 염료분자와, 생성된 전자를 전달하는 전이금속 산화물을 주된 구성 재료
로 하는 광전기 화학적 태양전지이다. Fig. 2.2. 에서
It got increased markedly to twenty two trillion won when the government made a public statement about the Master plan of Restoration of four major rivers .
In the government's investment plan, the total cost is twenty two trillions. But except of the total cost of this state undertaking, twenty two trillions, two thousand billions, it will be vast.
First of all, if water improvement bu
1906 Plant opens in Brazil & Belgium Production of oxygen begins
1969 Opens U.S. subsidiary.
1986 Acquires Big Three Industries, becomes second largest industrial
gas producer in the United States.
1994 Begins power cogeneration activities, including acquisition of
power generation company Bayou Cogen and construction of
new plants in
3. Foundation course
1) How to construct the park on the landfill
To solve the environmental problem caused by a waste disposal site in NanJiDo, Seoul city government started the construction to stabilize the environment in NanjiDo like these ways: 'landfill cover soil' construction in upper part of ground -> be smooth down the slope -> leachate disposal facility -> landfill gas disposal faci