이번에 처음으로 알게 되었다.
1. 탄광 속의 카나리아(Canary in a CoalMine)의 의미
멀고먼 옛날, 탄광에는 특별한 환기 시설이 없었기 때문에 광부들은 항상 독가스에 중독될 지 모르는 위험을 감수해야 했다. 어떻게 알아냈는지는 모르겠지만, 이들은 광산에 들어갈 때 카나리아를 데리고 들어갔다.
Ⅰ. 서론
고착화 된 고유가 상황과 비전통 천연가스 개발 기술의 발전으로 셰일가스와 더불어 석탄층메탄가스(coalbed methane, CBM) 개발 사업도 많은 주목을 받고 있다. 96% 이상의 에너지 자원을 수입하는 우리나라에게 천연가스는 원유 대체연료로써 그리고 최근의 비전통 천연가스의 경쟁적 개발 상황
II. How is CBM formed
Coalbed methane (CH4) forms in one of two ways. During the earliest stage of coalification (the process that turns plant detritus into coal), biogenic methane is generated as a by-product of bacterial respiration. Aerobic bacteria (those that use oxygen in respiration) first metabolize any free oxygen left in the plant remains and the surrounding sediments. In fresh water
Coalbed methane is a form of natural gas that is trapped within coal seams.
In recent decades it has become an important source of energy in United States, Canada, and other countries.
It is called sweet gas.
Enhanced coal bed methane recovery
is a method of producing additional coalbed methane from source rock.
This technique may be used in conjunction with carbon capture
and stora
‘Green issues’ is still a very wide and rather vague overarching term for a broad range of topics
‘Sustainability’ means developing and managing attractions which are as environmentally friendly, socially equitable and economically viable as possible
How Consumers & Organizations Can Become Greener
Symbolic action in relation to the day-to-day operation of the organization, such as th
2. 응용분야
2-1. 나노입자제조
위에 언급된 초임계 유체의 여러 장점들을 바탕으로 최근에는 결정화 분야를 비롯한 나노 분야 전반에 걸쳐 초임계 유체 기술이 이용되고 있다. 초임계 나노 입자 제조는 열에 민감한 의약품이나 단백질, 비타민등을 잔존용매 없이 미세화 하는데 매우 효과적이며, 약
coal increased throughout the country, the reliance on coal increased. Since the First World War, coal-fired power plants had a combined in the United States each year. In 1986 such plants had a combined generating capacity of 289,000 megawatts and consumed 83 percent of the nearly 900 million tons of coalmined in the country that year. Given the uncertainty in the future growth of the nearly 90
mine. Dont come back, you stupid son of a bitch.
Didnt I tell you to watch the roof?
Now we all couldve been killed cause you didnt have the sense to look up!
Thats my dad.
Homer.
Howd it go?
Well, I told you. You spend the summer shovelin coal...
and youll be playin linebacker next fall.
Whats the matter, Homer? Not cut out for mining coal?
Me neither.
Lets get that mess cleaned up!
Lets get som
Other Problems
· Swap Station Problems
- standardization among EV is not in place
· Batteries as Environmental Disadvantage
- battery manufacturing is an energy-intensive
process, involving hazardous chemicals
· Coal as Electricity Generator
- EV requires more coal mining and burning
Technical Issue
• Standardization (plug, phases, data protocol)
• Cros