1. 기존 PLANT 내의 제어실에 새로운 CONTROL SYSTEM 을 설치하고 기존 CONTROL SYSTEM 과의 DATA COMMUNICATION을 하려고 한다. 이때 고려해야할 사항을 설명하시오. 또한, OSI (Open System Interconnection) 7 Layer 에 대해 설명하고 TCP/IP 4계층과 비교 및 적용되는 Protocol의 예를 드시오.
① 이기종간의 제어시스템간의 데이타
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
power or DTP is a new and untested method of tidal power generation. It would involve creating large dam-like structure extending from the coast straight to the ocean, with a perpendicular barrier at the far end, forming a large 'T' shape.
The plant is to open the existing dam to allow the circulation and exchange of water between the Lake Sihwa and the sea.
The tidal plant will improv
5. C02 emision
this graph shows the amount of co2 emission for each energy source. coal is the highest source emitting co2, and then gas, petrol in a row.
6. energy dependence in korea
import rate : 96.62%, independence rate : 16.17%
South Korea consumed over two million barrels of oil per day in 2009, making it the tenth largest consumer of oil in the world. The country ha