scholarly journals Eagle Creek Post-Fire Monitoring for Water Temperature & Water Stage

2020 ◽  
Author(s):  
Sylas Daughtrey
Keyword(s):  
Water Temperature ◽  
Fire Monitoring ◽  
Water Stage ◽  
Temperature Water

scholarly journals Macro benthic fauna in relation to limnological variables in a migratory bird visiting lake at Jahangirnagar University, Bangladesh

2018 ◽  
Vol 4 (2) ◽  
pp. 99-106
Author(s):  
S Sharmin ◽  
SH Rahman ◽  
MN Naser ◽  
S Hoque
Keyword(s):  
Water Temperature ◽  
Diversity Index ◽  
Winter Season ◽  
Benthic Fauna ◽  
Migratory Bird ◽  
Soil Parameters ◽  
Benthic Organisms ◽  
Wiener Diversity Index ◽  
Water Ph ◽  
Temperature Water

The abundance of macro benthic organisms was observed from a migratory bird visiting lake in Jahangirnagar University, Savar for a period from July 2016 to June 2017. A total of 22 species belonging to three phyla (viz. Mollusca, Annelida and Arthropoda) and 14 families was recorded with maximum abundance in summer season and minimum in winter season. Molluscan population (37%) was dominant in benthos, followed by Annelida (31%) and Arthropoda (28%). Average values of water temperature, dissolved oxygen and water pH were within standard permissible ranges in the aquatic habitats of the country. Water and soil parameters were in suitable ranges for the growth and abundance of benthos. Correlation indicated that Mollusca and Annelida were closely dependent on water temperature, water pH, water depth, soil organic carbon and soil organic matters, whereas Arthropoda had less dependency on them. In the present study lower Shanon-Wiener diversity index (2.55-2.92) and low species richness (18-24) clearly demonstrated that the lake is moderately polluted. J. Biodivers. Conserv. Bioresour. Manag. 2018, 4(2): 99-106

Effects on the Transparency of Corn Starch Dumpling Wrappers

2012 ◽  
Vol 554-556 ◽  
pp. 1049-1052
Author(s):  
Jun He Zhang ◽  
Guang Lei Li ◽  
Jie Zeng
Keyword(s):  
Water Temperature ◽  
Corn Starch ◽  
Design Method ◽  
Orthogonal Experimental Design ◽  
Water Addition ◽  
Range Analysis ◽  
Technical Parameters ◽  
Experimental Design Method ◽  
Dumpling Wrappers ◽  
Temperature Water

Effects of the water temperature, water addition, sucrose and the phosphate monoester starch on the transparency of corn starch dumpling wrappers were investigated by orthogonal experimental design method. Range analysis and variance analysis methods were carried out to analyse the test results. The results showed that the phosphate monoester starch significantly affected the transparency of corn starch dumpling wrappers (p=0.0414＜0.05), then followed by water temperature, water addition and sucrose in sequence. The optimal technical parameters of corn starch dumpling wrappers were as follows: water temperature 90°C, water addition100%, sucrose 1~1.5%, and phosphate monoester starch 7% (count as corn starch ).

Power Consumption Saving of Chiller Water System for Semiconductor Factory in Taiwan

2011 ◽  
Vol 314-316 ◽  
pp. 1492-1501
Author(s):  
Ching Liang Chen ◽  
Yung Chung Chang
Keyword(s):  
Power Consumption ◽  
Water Supply ◽  
Water Temperature ◽  
Cooling Tower ◽  
Reducing Power ◽  
Total Power ◽  
Water Cooling ◽  
Cooling Temperature ◽  
Total Power Consumption ◽  
Temperature Water

Recently, the semiconductor manufacturing industry has exhibited not only fast growth, but intense power consumption. Consequently, reducing power consumption is critical for running reliability. A view of literature reveals that the power consumption of facility system is 56.6 % in the fabs. Among all facility systems, chiller plants are the largest energy users, consuming 27.2 % of the total power consumption. Therefore, saving power consumption for chiller plants involves a considerable economic benefit. In addition, cooling the water temperature further improves the efficiency of chillers. Hence, this report analyzes the optimal temperature between the chiller and cooling tower. Currently, controlling the chiller and cooling tower are separate processes, though, in fact, they should not be. This is because the water cooling temperature affects the efficiency of the chiller. Each reduced degree of the chiller condenser temperature reduces the electrical power by approximately 2 % in the cooling tower, in contrast to the chiller. Therefore, the optimal water cooling water temperature must be analyzed. The analysis method in this report is linear regression. First, determine the equations of power consumption for the chiller and cooling tower with variables representing the water cooling temperature, water supply temperature of the chiller, and outdoor loading and wet-bulb temperatures. Second, add the coefficient of the same variable to obtain the total power consumption equation for the chiller and cooling tower. The result shows the relationships of power consumption with water cooling temperature under identical conditions of the water cooling temperature, water supply temperature of chiller, and outdoor loading and wet-bulb temperatures. Finally, use the differential method to determine the optimal water cooling temperature.

scholarly journals PENGARUH FAKTOR LINGKUNGAN TERHADAP KEBERADAAN GASTROPODA PADA EKOSISTEM MANGROVE DI DERMAGA LANTAMAL KELURAHAN KARANG INDAH DISTRIK MERAUKE KABUPATEN MERAUKE

2018 ◽  
pp. 33-48
Author(s):  
Rosiana Sari Mathius ◽  
Bonny Lantang ◽  
Modesta R. Maturbongs
Keyword(s):  
Environmental Factors ◽  
Data Collection ◽  
Water Temperature ◽  
Soil Ph ◽  
Field Data ◽  
Environmental Parameters ◽  
Mangrove Ecosystem ◽  
Field Data Collection ◽  
Water Ph ◽  
Temperature Water

This study aims to determine the type and effect of environmental factors on the presence of gastropods in the mangrove ecosystem. Field data collection is taken by measuring the environmental parameters directly, while gastropod data is obtained by calculating directly the amount obtained by each data collection. The results showed that in Lantamal Pier there were 8 species of gastropods : Littorina scabra, Cerithidea obtusa, Cassidula angulifera, Terebralia sulcata, Terebralia palustris, Ellobium aurisjudae, Telescopium-telescopium and Nerita lineata while environmental factors that affected to gastropods were water temperature, water pH, and soil pH.   Keywords: Gastropods; Environmental parameters.

scholarly journals Experimental and Numerical Study on the Effect of the Temperature-Control Curtain in Thermal Stratified Reservoirs

2019 ◽  
Vol 9 (24) ◽  
pp. 5354 ◽  
Author(s):  
Jijian Lian ◽  
Peiyao Li ◽  
Ye Yao ◽  
Wei He ◽  
Nan Shao
Keyword(s):  
Water Temperature ◽  
Temperature Control ◽  
Numerical Study ◽  
Three Dimensional ◽  
Experimental Tests ◽  
Engineering Practice ◽  
Maximum Increase ◽  
Study Results ◽  
New Facility ◽  
Temperature Water

The impoundment and power generation of dams cause the temperature of released water much lower than the original rivers in the thermal stratified reservoirs. In addition, the released low-temperature water would damage the downstream habitats of fish and other biological groups seriously. Available facilities, such as stop log gate intakes and multi-level intakes, are built to alleviate the problem. For overcoming the limitations of traditional facilities on construction conditions and the improved effect of water temperature, a new facility of the temperature control curtain (TCC), with the advantages of convenient regulation and no hydropower loss, has been proposed recently. However, to the author’s knowledge, the theory of TCC is not abundant, with incomplete experimental tests and few numerical simulations. In this paper, a rectangular tank is designed specifically to conduct experimental tests to verify the effects of TCC and explore its potential impacts on released water temperature (RWT) under four major influencing factors. The study results show that TCC has significant effects on improving RWT, with a maximum increase of 8.3 °C. In addition, a three-dimensional hydrodynamic model with the same size of experimental model is established for further research. The results show that RWT is mainly related to the temperature distribution of a reservoir and the water-retaining proportion of the curtain. Finally, a basic principle for TCC construction is proposed and all these laid an important theory foundation for its application in engineering practice.

EXTREME DETERIORATION OF WATER QUALITY AND FISH SUFFOCATION PHENOMENA IN THE MARINE ESTUARY

2017 ◽  
Author(s):  
Kira Slepchuk ◽  
Kira Slepchuk ◽  
Tatyana Khmara ◽  
Tatyana Khmara ◽  
Ekaterina Mankovskaya ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Temperature ◽  
River Runoff ◽  
Small River ◽  
Fish Kill ◽  
Water Stratification ◽  
Temperature Water

The factors that provoke fish suffocation in an estuary, namely: natural (small river runoff, high air and water temperature, water stratification) and anthropogenic (regulation of river, etc.) were marked. Taking into account these factors the calculations were carried out and the possible areas of the Dnieper-Bug estuary, where fish kill of different scale and genesis is found out were identified.

Study on one Dimensional Numerical Simulation in Filling Stage of Water-Assisted Injection Molding

2011 ◽  
Vol 179-180 ◽  
pp. 1193-1198 ◽  
Author(s):  
Tang Qing Kuang
Keyword(s):  
Numerical Simulation ◽  
Injection Molding ◽  
Water Temperature ◽  
Water Pressure ◽  
Mold Temperature ◽  
Processing Parameters ◽  
Melt Temperature ◽  
Filling Stage ◽  
Short Shot ◽  
Temperature Water

Water assisted injection molding is a pretty novel way to fabricate hollow or more complicated parts. Its molding window and process control are more critical and difficult since additional processing parameters are involved. A simulation model for the filling stage of a pipe cavity during short-shot water assisted injection molding was proposed. The finite element/finite difference/control volume methods were adopted for the numerical simulation. A numerical study, based on the single factor method, was conducted to characterize the effect of different processing parameters on the short shot water-assisted injection-molding of thermoplastic composites, including short-shot size, melt temperature, mold temperature, water temperature and water pressure. For the factors selected in the simulations, short-shot size was found to be the principal parameters affecting the water penetration length while melt temperature, mold temperature, water temperature, water pressure were found to have little effect on the penetration of water.

Research on Ultra-Fast Cooling Heat Transfer Coefficient Affecting Law for Hot Strip Mill

2014 ◽  
Vol 788 ◽  
pp. 346-350
Author(s):  
Lian Yun Jiang ◽  
Guo Yuan ◽  
Zhen Lei Li ◽  
Di Wu ◽  
Guo Dong Wang
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Water Temperature ◽  
Water Spray ◽  
Cooling Process ◽  
Running Speed ◽  
Ultra Fast Cooling ◽  
Fast Cooling ◽  
Temperature Water

The ultra-fast cooling technology has been developed rapidly in order to develop iron and steel material with high performance. A variety of factors including the strip running speed, water temperature, water spray speed and strip temperature will affect strip cooling aspect during ultra-fast cooling process. These factors, which affect heat transfer coefficient, should be analyzed in order to achieve accurate control of strip cooling path during ultra-fast cooling process. The heat transfer coefficients of the hot rolled strip with various cooling parameters were obtained by numerical calculation method. By comparison, the influencing law that the cooling process parameters had made to heat transfer coefficient were obtained. It was found that strip running speed can affect heat transfer coefficient by influencing residual water distribution on top of the strip surface. Water temperature, water spray speed and strip temperature can also affect heat transfer coefficient with different changing law.

scholarly journals Physico-chemical and Cyanophitic Variation of Ganga Sagar Lake, Jabalpur

2021 ◽  
Vol 10 (10) ◽  
pp. 36-42
Author(s):  
Preetraj Singh Patel Balendra Pratap Singh
Keyword(s):  
Water Temperature ◽  
Physicochemical Parameters ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Chemical Parameter ◽  
Post Monsoon ◽  
Physico Chemical ◽  
Scientific Name ◽  
Temperature Water

The present studies focused on the Physico-chemical parameter and Cyanophitic diversity of Ganga Sagar Lake, Jabalpur. The physicochemical parameters like temperature, water temperature, D.O., pH, free CO2, Total alkalinity, total hardness, calcium hardness, chloride, phosphate and nitrate were studied to analyze the Ganga Sagar Lake, Jabalpur. The study area selected was Cyanophitic diversity has been done with scientific name in this Lake. In these studies, an attempt has been made to identify the taxa of Cyanophyta in Pre-monsoon, monsoon, summer and Post monsoon from July 2017 to June 2019.

scholarly journals Effect of Flow Rate of Side-Type Orifice Intake on Withdrawn Water Temperature

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Xueping Gao ◽  
Guangning Li ◽  
Yunpeng Han
Keyword(s):  
Water Temperature ◽  
Flow Rate ◽  
Negative Effects ◽  
Flow Rates ◽  
Change Trend ◽  
Stratified Reservoir ◽  
The Difference ◽  
New Equation ◽  
Intake Flow ◽  
Temperature Water

Side-type orifice intake is a type of selective withdrawal facility used in managing reservoirs to mitigate the negative effects of low-temperature water. Based on the temperature data of a thermal stratified reservoir in China, an experiment was conducted in flume to study the influence of intake flow rate on withdrawn water temperature with different temperature distributions. Results indicated that withdrawn water temperature changed with different flow rates. The temperature change was determined by the water temperature gradients above and below the intake, whereas the change trend of temperature depended on the difference between the water temperature gradient above and below the intake. We likewise proposed a new equation with which the withdrawn water temperature of a thermal stratified reservoir using a side-type orifice could be calculated. These findings could be directly applied to the design and operation of side-type orifice intake in thermal stratified reservoirs.

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