water flow direction, inlet locates downside and outlet locates upside.
Through this, we can know that axial impeller is not suitable. Also, because of wide width of tank, it has poor mixing.
Second, there is a problem with chemicals. PAC is injected with Cl2, so activation of Cl2 must be restricted.
Also, using alum may cause settling.
Alum lowered pH in localized area. To overcome this
BoP (Bottom of the Pyramid)
The group which is the largest, but poorest group
2.5 billion people living by less than $2.50 per day
Base of Pyramid
Unable to purchase daily necessities
South Asia and Central-South Africa
Bath BoP Market : Central-South AFRICA
Central-South Africa
Poor water supply, unable to use washing tools
Village and towns on the high reaches
Washing bod
water, those free complex carbohydrates turned into fermentable sources through pre-treatment process - saccharification. Then, it can be changed ethanol form through fermentation by yeast or genetically engineered E.coli and we can produce biofuel from that ethanol. Now, the way of decreasing process and cost are studied from a few researchers. So we will show the whole process of the production
2. Objective
1) To investigate of solid-liquid mixture flow characteristics 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
Cooling tower location
Hazardous area
Cooling tower fog control
Winter operation
Cooling water 화학적 처리 목적
냉각 표면의 SCALE 방지
Cooling water와 접촉되는 금속의 부식 방지
냉각 탑 자체와 냉각표면의 FOULING 방지
COOLING TOWER TIMBER
① PCA: 가끔 오심과 구토를 호소할수 있으므로, 침대에서 일어날 때 측위로 누웠다가 서서히 머리 를 일으키도록 교육한다.
② 배액관이 막히지 않았는지 확인하고 삼출물의 양 색깔, 냄새 관찰. 주기적으로 비워준다.
⑺ 불편감과 통증
①대상자의 통증 행동을 관찰하고 통증의 정도를
1) 사용목적
- 정맥 내 주사를 하기위해 사용되며 응급상태에서 약물을 신속하게 공급할 수 있다. 또한 수액의 교환에 있어 용이하다.
2) 사용방법
① 주사할 부위 선정 후 피부 준비 - 선정된 부위 2 ~ 3 인치 상방에 지혈대 감는다.
② 정맥 촉지, 팔의 경우에는 주먹 쥐었다 폈다 하도록 시킴.
3. 냉각판의 설계와 해석 결과
Consider a cold plate fabricated from aluminum(k=190W/mK) with regularly spaced rectangular channels through which the water is passed.
Assume the top surface of the cold plate to be insulated. System reliability considerations dictate that the maximum cold plate temperature must not exceed 40℃.
(a) Determine h and calculate the pumping power.
1. Introduction
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine
per hour. However, these respirators are capable to remain the flow ‘laminar’ that passes through their gill slits. These abilities to remain ‘laminar’ are explained throughout this paper and it will be shown by the case of a Skipjack Tuna. Equations that are developed from the basic interflow of fluid dynamics are also used for the rectangular tube figure of secondary lamellae.