2. Objective
1) To investigate of solid-liquid mixture flowcharacteristics in a slim hole annulus
2) Effect of pipe rotation, fluid property, annulus inclination on the particle transport velocity, transport efficiency and pressure drop
3. Theoretical background
3.1 Reynolds number
Reynolds number can be defined for a number of different situations where a fluid is in relativ
flow-volume loop, Y축에 rate of airflow, X축에 total volume of expiration or inspiration
G. Calibration and quality control
Spirometer의 quality control은 calibration과 매우 밀접한 연관이 있다. calibration은 quality control을 위한 adjustment를 하는 과정이다. spirometer로 측정된 air quantity가 알고 있는 수치와 근사치인 경우 instrument는 accurate
the dimensions of each grit chamber:
Assuming width-to-depth ratio = 1: 1 , depth = 2 m
a. Width = 1 X 2 (m) = 2m
b. Length = volume/ (width*depth) = 12.996 / (2 X 2) = 3.25 m
Determining the detention time at average flow
Detention time = 12.996 M3 / 0.03610 M3/s = 6 min
Determining the air supply requirement (assume: Air supply per unit of length = 0.2 M3/m
air sealing & formed on strong support ->mechanical property is great & resistance from heat is great
Disadvantage: power density is small
Economical characteristic
Do not use expansive catalyst
Do not need reforming
Do not need electrolyte supplement
Price is cheaper than others
Technical characteristic
simple process caused by various fuels
(Natural gas/coa
● Definition of plasma
Plasma is one of the four fundamental states of matter, along with solid, liquid, and gas. It is an ionized gas consisting of a collection of charged particles, including ions, electrons, and neutral atoms or molecules. Plasma can be found naturally in the universe in the form of stars, lightning, and auroras, but it can also be artificially created and controlled for