temperature processes relate to materials development for corrosion resistance at high temperatures, high-temperature
membrane and separation processes, heat exchangers, and heat storage media. Design aspects and safety are also important for high-temperature processes.
-Thermo-chemical water splitting
For example, Thermo-chemical water splitting is the conversion of water into hydrogen an
2. 수치해석으로 구한 2-D 온도 프로파일 해석해 (temperature vs fin length)
2.1.1 discrete equation with the energy balance method(2-D)
일반적으로 control volume을 잡고 energy balance equation을 세우면 다음과 같다.
2차원 상에서 이므로, 위의 식은 다음과 같아진다.
그런데 가정에서 Steady State이고, Energy generation과 storage
temperature is cool by freezer.
• material milk
use marketing milk, powdered milk,
If marketing milk, using intact, or removing grease. skim powdered milk is more better than powdered milk.
• removing grease method
Don't use centrifugal, storage the milk in freezer one day. Then put away the yellow grease on the top.
• sterilization
marketing milk is unnecessary, bu
1) Steady-state
2) NO Energy generation & Energy storage
이제 Differential element를 고려해 식을 세우면
그리고 미소변화량은
로 나타낼 수 있다. 이제 두식을 연립하여 풀면
와 같이 나온다.
q와 에 대해 Fourier' law와 Newton's cooling law가 성립하므로
이고 이를 대입하면
I. Introduction
1. Understanding of Kimchi
History
Given the facts that Koreans have been using vegetables and making salt from ancient times, and the era of making fermented foods, such as pickled fishes and soy pastes, we can assume that some kinds of Kimchi have been made since the period of the Three States. Kimchi, Korean traditional fermented food, is stemmed from natural environment, su