scholarly journals ANALYSIS OF DATA FROM RAW WATER FLOW METER IN LOCAL TREATMENT WATER STATION

Author(s):  
Rafał Chorzępa ◽  
Radosław Cieslak
2013 ◽  
Vol 15 (3) ◽  
pp. 888-896 ◽  
Author(s):  
Songhao Wang ◽  
Ronald Garcia

The objective of this paper is to present the feasibility of a self-rechargeable digital water flow meter (SRDFM) system for water pipes using the latest data processing and wireless communication technologies while causing negligible water pressure drop (head loss). The system uses a Pelton turbine generator to power the electronic circuit, which processes and transmits the signals generated by several flow meters. ZigBee technology was used to process and send wireless signals. Signals from two water meters were acquired, processed, and transmitted with only one control/transmission unit during this study. The new system was assessed experimentally, reaching a maximum of 80 m of wireless transmittance distance at a minimum flow rate of 5 L/min for a 16-mm diameter pipe (self-charged).


2014 ◽  
Vol 14 (1) ◽  
pp. 55-64
Author(s):  
Titis Rosari ◽  
Wahyono Hadi ◽  
Ali Masduqi

Solar still atap kaca merupakan salah satu inovasi renewable energy untuk proses desalinasi. Penambahan reflektor parabolic trough berfungsi untuk meningkatkan suhu dalam sistem. Tujuan penelitian ini adalah menganalisa volume air tawar yang dihasilkan dengan parabolic trough, memisahkan DHL dan TDS dari air olahan, menentukan tinggi air optimum, dan efek warna pada basin. Penelitian menggunakan aliran semi kontinu dengan pengaturan aliran air menggunakan pelampung air. Air baku yang digunakan berasal dari sumur warga Kejawan Putih. Penggunaan parabolic trough pada sistem desalinasi dapat meningkatkan volume produksi hingga 66% dibandingkan tanpa menggunakan parabolic trough. Efisiensi destilasi ekperimen mencapai 18,12%.  Volume yang dihasilkan sebesar 2,494 L/m2 dalam satu hari dengan laju destilasi 0,312 L/m2. Kemampuan penyisihan TDS dan DHL sebesar 99,9%. Pada eksperimen ini variabel warna bak dan ketinggian air tidak berpengaruh signifikan terhadap hasil kondensat. Solar still is one of the inovations of renewable energy for desalination process. The function of using parabolic trough reflector is to increase temperature on the system. The purposes of this study was to analyze fresh water yield by using of parabolic trough, removing DHL and TDS from brackish water’s samples, and effect of color on the basin. This research using semi-continuous flow with water flow setting by water buoy. Raw water used was came from wells at Kejawan Putih subdistrict.. The using of the parabolic trough desalination system can increase production volume by 66% when compared without parabolic trough. Experimental distillation efficiency reached 18.12%. Condensate yield has been found to be 2,494 L/m2 in one day and distillation rate of 0.312 L/m2.  These process can allowance 99.9% of the TDS and DHL. In this experiment the variable of basin color and depth water did not significantly influence to condensate yield.


2013 ◽  
Vol 726-731 ◽  
pp. 3934-3937
Author(s):  
Lin Li

The experiment was conducted by small perspex ring groove, which generated infinitely long water flow, under axenic condition and constant temperature and light, to understand the effects of water flow onMicrocystis aeruginosagrowth in early summer and autumn raw water. The results showed that the algae growth was promoted and the specific growth rate was accelerated by water flow. The maximum biomass ofM. aeruginosain autumn raw water was higher than in early summer raw water at every flow rate. The optimum flow rate ofM. aeruginosain early summer and autumn raw water were 25 cm·s-1and 35cm·s-1, respectively. The phenomenon may be the interaction of the colloid produced by death and decomposition of algae, and colony formation inM. aeruginosaunder fluid motion. Therefore, The decomposition and morphology ofMicrocystishave an important role to growth and reproduction of algae, the results provided the scientific basis for revealing algal blooms.


1991 ◽  
Vol 11 (Supplement2) ◽  
pp. 289-294 ◽  
Author(s):  
Kyoji KAMEMOTO ◽  
Yosifumi YOKOI ◽  
Satosi SAITO ◽  
Eiji TANAKA ◽  
Yutaka OGAWA
Keyword(s):  

2021 ◽  
Vol 58 (1) ◽  
pp. 4302-4306
Author(s):  
Dr. A. Thomas Paul Roy, Dr. S. Satheesbabu, Dr. S. K. Somasundaram

Water is a fundamental asset for people, and its administration is a central point of contention. To conserve water, this system improves the expanded use of water. Internet of things is arrangement of interrelated processing gadgets, computing entities, vehicles, home machines and different things installed with electronic chips and sensors. The system is planned utilizing Nodemcu, ESP8266 and sensors. ESP8266, which is a less cost cloud microchip. This framework will comprise of a water pipe with water flow meter associated with it and a Nodemcu board and ESP8266 associated with it. First we utilize a water flow meter and gather the information as water moves through it.ESP8266 Wi-Fi module is a minimal effort CPU that gathers and sends the data to the cloud. We utilize the Nodemcu to arrange between water flow meter and the ESP 8266 module and afterward utilize the Thing speak Internet of things investigation stage to break down and show the information in visual organization. The yield of this system will be utilized for checking the water and it tends to be shown visually through the graph. The venture can be fundamentally valuable for household and agricultural purposes as it assists with limiting the loss of water.. Index Terms: Internet of Things (IoT), Embedded systems, Wi-Fi module, water flow Sensors.


10.7125/40.17 ◽  
2015 ◽  
Vol 40 (0) ◽  
pp. 114
Author(s):  
Ankith S ◽  
Anjana S ◽  
Sahana M N ◽  
Praneeta Mallela ◽  
Natarajan K ◽  
...  

1940 ◽  
Vol 17 (4) ◽  
pp. 93-94 ◽  
Author(s):  
E C Childs
Keyword(s):  

Author(s):  
Li Song ◽  
Gang Wang ◽  
Atul Swamy ◽  
Gyujin Shim

In this paper, a virtual Air handling unit (AHU) level water flow meter using a control valve as a measurement device is experimentally validated through two different sizes of control valves on cooling coils. The flow through the valve is indirectly calculated using in-situ valve resistance coefficient curve, differential pressure over both the valve and its associated coil and valve stem positions. It was concluded in previous studies that the in-situ valve resistance coefficient curve is critical for determining the accuracy of the virtual valve flow meter. In this paper, an experimental approach and a theoretical approach of obtaining the in-situ valve resistance coefficient curve are introduced and as a result, accuracy of the virtual valve flow meters, using two different sizes of control valves: a smaller valve with design water flow rate of 25GPM and a larger valve with design water flow rate of 300GPM, is compared with an ultrasonic meter. The comparison show less than 4% of error over the full measurement range.


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