and low dissolution rate to avoid precipitation of metal
Electrolyte :
lithium potassium carbonate
lithium sodium carbonate
Advantage :
no expensive electro-catalyst
CO can be fuel
waste heat allows the use of a bottoming cycle
Disadvantage :
very corrosive and mobile electrolyte
required CO2
high contact resistances and cathode resistance limit power density
- 동전위 분극 시험
icorr (μA/cm2) : corrosion current density
E.W. (Equivalent weight) = 1 / NEQ = 8.99
NEQ (total number of equivalent) = Σ (fi ni / ai )
- ai : atomic weight
- fi : mass fraction
- ni : electrons exchanged
Density (g/cm3) = 2.7
Introduction
Corroded heat element of GGH
Ref. 박승수․안희수․김기형․박광규, 배연탈황설비 Gas-Gas-Heater(GGH) Heat element 부식 원인규명, 한국대기환경학회 2006 추계학술대회 논문집
Pitting corrosion in a storage tank floor
Ref. M.B. Hoppenbrouwers MScRntgen Technische Dienst BV, Rotterdam, Advanced Ultrasonic Methods For In Ser
Objection
Metals, ceramics, polymers that represent material engineering can find easily in our real life. Compare corrosion degree in case of uncovered in same corrosion environment and corrosion difference inquires happened reason.
Consider how take advantage of Material in state that is more better in our real life.
TheoryA
kind of the corrosion
- General Corrosion
- Galva
(Controlled Atmosphere)컨테이너를 보유하고 있는데, CA컨테이너는 부패하기 쉬운 화물을 먼 곳의 목적지까지 최상의 상태로 운송 가능하게 하고 또 화물의 저장수명을 연장시켜주는 역할을 한다.
한진해운의 냉동컨테이너 서비스는 전문화된 인력과 광범위한 물류망으로 최상의 서비스를 제공하고 있다.
1.부식의 정의
-부식(corrosion)이란 금속이 어떠한 환경에서 화학적 반응에 의해 손상되는 현상으로 모든 금속 합금은 특정 환경에서는 내식성을 띄지만 다른 환경에서는 부식에 대해 민감하다. 일반적으로 모든 환경에서 내식적인 공업용 금속재료는 거의 존재하지 않을 것이다.
즉, 액체용액(液體溶
18. Jupiter is a gaseous planet with an atmosphere composed most of hydrogen
A B C
and helium.
D
19. Throughout her career Georgia O'Keeffe paid meticulous attention to her craft:
A B
her brushes were always clean, her colors fresh and brightness.
C
SPHERE
BY
PAUL ATTANASIO
Based on the novel by
Michael Crichton
BARRY LEVINSON VERSION SHOOTING SCRIPT
FADE IN:
EXT. OCEAN FLOOR - DAY
BEGIN TITLES.
MOVING AMONG the hallucinatory variety of creatures --
barbaric, distorted, sublime -- that haunt the ocean floor.
All but unknown to man except in the deep preconscious brain
that houses the family album of the race... Where we remember
that they ar