solar energy in a year. Carbon emission reduction in terms of carbon credit will attract lots of investment in the renewable energy.
3. Marketing Strategy
The analysis of the industry is crucial. The analysis would be carried out with the use of Porter’s Five Forces Analysis and the SWOT Analysis.
3.1 Porter’s Five Forces Analysis
The solarpanel business requires sophisticated
Strengths
No future expenditure in electricity
Environment-friendly
Weaknesses
High initial cost of solarpanels
Low efficiency of solar energy,
compared to other sources
Opportunities
Technology development can
improve efficiency of solar energy
Threats
Preference for current resources of
electricity over solar energy
The emergence of
▶find photoelectric effect
Heinrich R. Hertz
▶design solar cell experiment
Cell (Basic cell of the solar cell)
↓
Module (Form of assembling Cells)
↓
Array (Solarpanel)
Hole moves toward
P type semiconductor
Electron moves toward
N type semiconductor
↓
Electrode formed
Current flows
↓
Solar cell generate
plastic film type solar cell
Prospect : Due to th
1. 런던 콜레라지도(교재 p.4)를 조사하고 데이터 시각화의 필요성을 설명하시오.(7점)
1)런던 콜레라지도
1854년 8월 31일 영국 런던의 소호 지역에서 발생한 콜레라의 원인을 파악하기 위해 의사 존 스노는 런던 지도를 사용했다. 스노는 감염에 따른 사망자 수와 주소가 포함된 기초 데이터를 확보했
Phosphor (Energy Converter)
Inorganic phosphor materials
“Classical” inorganic phosphors usually consist of a host lattice with activator ions doped into it in small concentrations, typically a few mole percent or less.
Host lattice & Activator ion
1st type : weak interaction (Ln3+)
2nd type: strong interaction ( Mn2+, Eu2+, Ce3+, Pb2+,Sb3+, Ce3+, MoO42-, NbO43-)
Activator (+ Sensit
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
Ⅰ. 신재생에너지 (New Renewable)
- 현재 전 세계는 화석에너지와 원자력에너지에 크게 의존하고 있다. 하지만 화석에너지의 고갈과 원자력 발전 시에 발생하는 사고와 후유증의 위험을 감지하고 재생에너지의 비율을 높이려 노력하고 있다. 고갈되어 가는 화석연료를 대체할 수 있는 다양한 신,재생 에너
Converts sunlight directly into electricity
Non polluting
Long lasting sources of energy
No need of maintenance
In the long run, solar electricity is cheaper
Electrons of dye absorb solar energy
Electrons of dye are excited & Generate electron-hole pairs
Electrons transfer from dye to FTO via TiO2
1/2 I3- + e 3/2 I- at counter electrode
3/2 I- 1/2
Solar Cell, DSSC)
반도체 접합 태양전지와는 달리 광합성 원리를 이용한 광전기 화학적 태양전지로 비표면적이 큰 나노 입자에 흡착시킨 염료가 가시광을 흡수하여 전자를 생성하고 투명 전극으로 전달되어 전류를 발생시키는 원리이다. 특히, 산환-환원 전해질을 포함하기 때문에 산화-환원 속도 및 나