determine the gas-solid heat transfer efficiency.
By using the metallic foam, journal explains the schematic diagram of the test.
In this work, heat transfer experiments were run with each foam sample under eight different flow superficial velocities.
“Heat transfer between the foam structures and the fluid was described by a dynamic, heterogeneous two-phase one-dimensional(1D) model.”
model in ISD. Dick & Carey model and R2D2 model also exist in ISD and these two things compared with ADDIE model several time by many expert. At first, we will search about ADDIE.
ADDIE model
The ADDIE model is most well-known model among many ISD model. This model is the generic process traditionally used by instructional designers and training developers. The five phases-Analysis, Desig
1. 서론
1.1. 연구목적 및 방법
■ 연구의 목적
자동차 배기가스로 인한 환경오염을 해결하기 위해 무연휘발유를 개발하였다. 무연휘발유는 옥탄가 향상제로 산소계 화합물인 에테르 화합물은 높은 산소 비율로 휘발유 불완전 연소 감소 및 배기가스 중 일산화탄소의 양을 줄여 대기오염의 감소 효
offering customers powerful, richly configured systems at competitive prices. Dell introduced the latest relevant technology much more quickly than companies with slow-moving, indirect distribution channels, turning over inventory an average of every four days. In less than two decades, Dell became the number-one retailer of personal computers, outselling IBM, Hewlett-Packard, and Compaq (2002).
Ⅱ. Theory
1. 기본 물성값
이번 프로젝트에서 선택한 물질은 에탄올과 DMC(ethanol/Dimethyl carbonate)이다. 그 물성치들은 아래와 같다.
MW
ρ/gcm3
R J. Gmehling, U. Onken, and W. Arlt, Vapor-Liquid Equilibrium Data Collection, Chemistry Data Wervice, DECHEMA, Frankfurt/Main, 1984-1990
Q1)
46.07
0.7851
2.1055
1.9728
(1) 에탄올 (ethanol, C2H5OH)