scholarly journals Environmental impact of saltwater in a stratified flow system and its remedial measure

2006 ◽  
Author(s):  
H. N. Hashmi ◽  
N. E. Malik ◽  
G. A. Hamill
Keyword(s):  
Environmental Impact ◽  
Flow System ◽  
Stratified Flow ◽  
Remedial Measure

scholarly journals GENERATION OF TROUGHS BY DENSITY CURRENTS

1976 ◽  
Vol 1 (15) ◽  
pp. 126
Author(s):  
Hans Speekenbrink
Keyword(s):  
Flow System ◽  
Field Measurements ◽  
Stratified Flow ◽  
Density Currents

Along the northern bank of the so-called "Maasgeul" scour has occurred, causing a trough. It is concluded from field measurements that the trough development is induced by density currents along the slope of the bank. The stratified flow system is dealt with mathematically. The calculated results are compared with the field measurements and agree fairly well. Trough development can be avoided by flattening the slope or by a bottom protection.

Gas-Liquid Distributions in Upward Multi-Pass Channels of Compact Evaporator

2010 ◽  
Author(s):  
Zuradzman Mohamad Razlan ◽  
Ryota Isobe ◽  
Yasuhiro Mizuno ◽  
Hiroaki Goshima ◽  
Masafumi Hirota ◽  
...  
Keyword(s):  
Air Conditioning ◽  
Water Distribution ◽  
Flow System ◽  
Stratified Flow ◽  
Air Conditioning System ◽  
Inlet Condition ◽  
Mist Flow ◽  
Automobile Air Conditioning System ◽  
Parallel Channels ◽  
Gas Liquid Flow

The gas-liquid flow distributions in multi-pass upward parallel channels that simulate the evaporator for the automobile air-conditioning system were examined experimentally. Attention was directed to the influences of the backpressure condition at the branch outlets and of the flow-inlet condition at the header entrance on the gas-liquid distributions to the branches. Experiments were conducted in an isothermal air-water flow system. The influence of the backpressure condition on the flow distributions changed depending on the flow-inlet condition. In the stratified-flow inlet, the backpressure condition was highly influential in both the air and water distributions, and the uniform water distribution that was ideal for the evaporators could not be achieved even if air was distributed uniformly to all branches. In the mist-flow inlet, the water distribution was insensitive to the backpressure conditions and its uniformity was improved in comparison with that in the stratified-flow inlet.

Automated Burner and Biogas Register for Sewage Treatment Mini Stations

2010 ◽  
Vol 297-301 ◽  
pp. 1097-1102
Author(s):  
E. Godoy Junior ◽  
M.A. Marcelino ◽  
J.L. Silveira ◽  
J.R. Camargo ◽  
R.C. Correa ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Waste Treatment ◽  
Flow System ◽  
Sewage Treatment ◽  
Automated System ◽  
Low Flow ◽  
Registration System ◽  
Sewage Treatment Plants ◽  
Working Together ◽  
Destructive Potential

This paper aimed to develop a system of an automated biogas burner which records the amount of biogas burnt by a biogas low flow system. The biogas produced in miniSST (mini station of sewage treatment), biodigestors on a rural and residential, where there is a low production of biogas doesn`t economically justify its energy, it is only a case of an anaerobic waste treatment. The registration system of burnt biogas correctly calibrated may be homologated to obtain carbon credits. In these systems, of anaerobic waste treatment, due to the low flow of biogas discharged into the atmosphere includes methane it has a destructive potential 21 times greater than the CO2.The system developed was analyzed and the effects of the disposed gas produced by the burner converting it in CO2 proved to show less environmental impact. The automated system used in the small sewage treatment plants was almost insignificant when analyzed separately but when taken into consideration several systems working together there was a considerable positive environmental impact.

Reduced environmental impact of a reusable soft mist inhaler

2019 ◽  
Author(s):  
M Hänsel ◽  
T Bambach ◽  
H Wachtel
Keyword(s):  
Environmental Impact

Biodiesel production from non-edible oils: A review

2020 ◽  
pp. 149-159
Author(s):  
Jatinder Kataria ◽  
Saroj Kumar Mohapatra ◽  
Amit Pal
Keyword(s):  
Environmental Impact ◽  
Energy Demand ◽  
Fossil Fuels ◽  
World Wide ◽  
Edible Oils ◽  
Control Measure ◽  
Biodiesel Production ◽  
Pollution Level ◽  
Animal Fats ◽  
The World

The limited fossil reserves, spiraling price and environmental impact due to usage of fossil fuels leads the world wide researchers’ interest in using alternative renewable and environment safe fuels that can meet the energy demand. Biodiesel is an emerging renewable alternative fuel to conventional diesel which can be produced from both edible and non-edible oils, animal fats, algae etc. The society is in dire need of using renewable fuels as an immediate control measure to mitigate the pollution level. In this work an attempt is made to review the requisite and access the capability of the biodiesel in improving the environmental degradation.

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