Application of No-Negative-Pressure Variable Frequency Water-Supply System in Campus

2013 ◽  
Vol 671-674 ◽  
pp. 2567-2570
Author(s):  
Hong Yun Xing
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Negative Pressure ◽  
Current Situation ◽  
Supply System ◽  
Water Supply System ◽  
Variable Frequency ◽  
Advantages And Disadvantages ◽  
Pressure Variable

The principle of no-negative-pressure variable frequency water-supply system and the current situation and characteristics of the water consumption in campus are analyzed, and at the same time, water-supply design precautions are put forward. With a example, the advantages and disadvantages of no-negative-pressure variable frequency water-supply system in campus are summarized. This paper holds this point that the system is suitable to be used in campus.

Research of Constant Pressure Water Supply System Based on PLC

2014 ◽  
Vol 624 ◽  
pp. 465-468 ◽  
Author(s):  
Mei Fang Wan
Keyword(s):  
Control System ◽  
Water Supply ◽  
Constant Pressure ◽  
Frequency Converter ◽  
Supply System ◽  
Water Supply System ◽  
Variable Frequency ◽  
Variable Flow ◽  
Pressure Water ◽  
Pump Pressure

This article designs one constant pressure water supply system based on PLC. In this system, PLC and frequency converter is the main control system. Moreover, the water-supply system with a variable frequency and constant pressure is based on PCL and combines with water supply pump, pressure gage and other equipment. Water supply system realizes the water supply of constant pressure and variable flow.

scholarly journals Optimization of water reservoir volume in an urban water supply system

2021 ◽  
Author(s):  
Lucija Plantak ◽  
Bojan Đurin ◽  
Tatjana Džeba ◽  
Sara Dadar
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Water Reservoir ◽  
Supply System ◽  
Water Supply System ◽  
Urban Water ◽  
Urban Water Supply ◽  
Functional Relationships ◽  
Reservoir Volume ◽  
Water Pumping

In this paper, the water pumping regime, as well as the water consumption regime with regard to the required quantities and the example of water consumption, with an emphasis on changes in water volume, are examined. This aims to show the functioning of the regime of water consumption, water pumping, as well as finding functional relationships between the mentioned sizes and the volume of the water reservoir. The analysis focuses on questions such as how and in what way, changes in the onset and duration of pumping, as well as different water consumption regimes affect the size of the reservoir volume. The entire analysis in this paper was done to develop a scientifically innovative, but also applicable mathematical model, which is a contribution to the profession and a good basis for further scientific research to improve the operation of the urban water supply system.

scholarly journals IOT Based Prepaid Purified Water Supply And Monitoring System For Housing Society

2020 ◽  
pp. 22-28
Keyword(s):  
Water Supply ◽  
Flow Control ◽  
Monitoring System ◽  
Water Consumption ◽  
Low Cost ◽  
Supply System ◽  
Water Supply System ◽  
Automated System ◽  
Huge Amount ◽  
Human Errors

There are so many diseases which are caused because of unfiltered water. In the market many products are available for filtration of water, but all that product needs a huge amount of cost for maintenance and installation process. So there is the need for filtration of water at low cost and efficiently. For that there will be an automated system which takes payment in advance and then supplies the water according to the purchased plan ,which is based on the user's needs. Hence the purpose of this project is to develop a system which is based on prepaid payment for water supply and monitoring water supply system for housing society. Water supply is measured by using flow control to control the flow of water according to the usage of the user. By doing this we can decrease the rate of human errors. All payment transactions are recorded in the system for further reference. This System evolves Automatically because it detects the recharge details from the message. After that it will give supply to that user according to their recharge details. This System is fully automated which can overcome the problems of improper bill creation, delay in bill availability and delay in payment process. Also system notify users for upcoming recharge and for water consumption.

MATHEMATICAL MODELLING OF URBAN WATER SUPPLY SYSTEM CRISIS

Engevista ◽  
2011 ◽  
Vol 13 (1) ◽  
Author(s):  
Marco Antonio Almeida de Souza ◽  
Welitom Ttatom Pereira da Silva
Keyword(s):  
Water Supply ◽  
Conceptual Model ◽  
Urban Environment ◽  
Influencing Factors ◽  
Water Consumption ◽  
Water Availability ◽  
Supply System ◽  
Water Supply System ◽  
Urban Water ◽  
Urban Water Supply

Purpose – The chaotic growth of cities results in numerous problems related to public health and urban environment. One of these problems is the crisis in urban water supply systems. The objective of this paper is to develop a mathematical model for the water supply system crisis in urban environment (WSC) able to tackle with the ambiguity of the real available data.Design/methodology/approach – The applied methodology comprises the following steps: (1) identification of the influencing factors in WSC; (2) proposal of a conceptual model for WSC description; (3) gathering and simulation of the necessary and available data; (4) optimization of the conceptual model parameters; and (5) verification of the proposed model performance.Findings – The results indicated that there is a great amount of influencing factors in WSC (showed in the complete text); the conceptual model that was developed is composed by two others partial models ( ). The first partial model explained the water consumption ( ),and the second partial model explained the water availability ( ), in which functions are related to influencing factors in water consumption (i.e. temperature, relative humidity, rainfall, revenues collected, unemployment indicator), and functions are related to the influencing factors in water availability (i.e. total water-loss, intermittence in water supply system). The proposed conceptual model has showed good agreement to the simulated data.Originality/value – The paper is among the first works to describe a WSC model and to analyze the possibility of applying fuzzy logic to deal with the ambiguity of the real data. The water supply crisis in urban environments was adequately modelled.

A New Approach to the Maximum Quarterly Water Consumption Modeling on the Example of Individual Water Consumers in a Small Water Supply System

2021 ◽  
Vol 23 ◽  
pp. 180-197
Author(s):  
Anna Młyńska ◽  
Tomasz Bergel ◽  
Dariusz Młyński
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Probability Distributions ◽  
Simulation Method ◽  
Supply System ◽  
Water Supply System ◽  
Data Set ◽  
Small Water ◽  
Daily Water ◽  
Daily Water Consumption

Quarterly water consumption data collected in a small water supply system were used for elaboration of a new water consumption modeling approach. In this paper, multi-distribution statistical analysis was performed. As the Anderson-Darling test proved, at least a half out of the ten tested theoretical probability distributions can be used for description of the water consumption. The application of the PWRMSE criterion made it possible to determine, which of the tested theoretical distributions is the best-fitted to the empirical data set. In the case of total daily water consumption for the group of the households, it was Johnson distribution, whereas for the average daily water consumption per capita, it was GEV distribution. Based on the best-fitted probability distribution, a 25-year water consumption simulation with the Monte Carlo method was conducted. Because methodology of this study is based on the probability distributions, even if the type of theoretical distribution of the water consumption will change, it will be still possible to use this simulation method by assuming the other distribution.

Energy-Saving Applying Study of Fuzzy Control in the Variable Frequency and Constant Pressure Water Supply System

2012 ◽  
Vol 591-593 ◽  
pp. 1307-1310
Author(s):  
Yao Bin Hu ◽  
Yu Lin Wang ◽  
Liang Bin Hu ◽  
Peng Wei
Keyword(s):  
Fuzzy Control ◽  
Water Supply ◽  
Energy Saving ◽  
Constant Pressure ◽  
Supply System ◽  
Water Supply System ◽  
Fuzzy Arithmetic ◽  
Variable Frequency ◽  
Pipe Network ◽  
Pressure Water

A new energy-saving method of variable frequency and constant pressure water supply system based on fuzzy control theory and software control technique is presented in this paper. Firstly, collecting the pipe network pressure periodically through the pressure sensor, the differential pressure signal will be sent into fuzzy controller after comparing the pipe network pressure with the set pressure. Then send a precise control quantity into the PID regulator to control output frequency of the frequency converter after a series of fuzzy arithmetic and solution of fuzzy arithmetic, so as to achieve the purpose of pump speed and consumed power controlling. The operating principle of variable frequency and constant pressure water supply system and the design procedures of software programming are elaborated. Practical application shows that the variable frequency and constant pressure water supply system based on fuzzy control has good effect on energy saving and obvious economic benefits and is worth popularizing and applying.

scholarly journals Developing water supply system in Szőgye

2021 ◽  
Author(s):  
Nikolett Fecser ◽  
István Lakatos
Keyword(s):  
Water Management ◽  
Drinking Water ◽  
Water Supply ◽  
Water Consumption ◽  
Water Demand ◽  
Cost Reduction ◽  
Supply System ◽  
Water Supply System ◽  
The Cost

Abstract The deteriorative processes occurring in the environment, the growth of population, the water demand of industry and agriculture, point out day after day the increasing role of water management. The economical use of drinking-water consumption as well as the cost reduction is becoming more and more important. In this research, the measure of a water supplier of Győr was examined in terms of implementing the purposes above.

PECULIARITIES OF THE WATER SUPPLY SYSTEM IN THE URBAN TYPE SETTLEMENT VOLZHSKY OF SAMARA REGION AND TENDENCIES AND CHANGES IN WATER CONSUMPTION

2016 ◽  
Vol 6 (1) ◽  
pp. 8-14
Author(s):  
Svetlana Yur'evna TEPLYKH ◽  
Pavel Aleksandrovich GORSHKALEV ◽  
Mikhail Dmitrievich CHERNOSVITOV ◽  
Sergey Sergeevich YUROV ◽  
Anna Olegovna YUROVA
Keyword(s):  
Water Supply ◽  
Water Consumption ◽  
Water System ◽  
Supply System ◽  
Water Supply System ◽  
Clean Water ◽  
Water Treatment Plants ◽  
Type Settlement ◽  
Elevated Tanks ◽  
New Facilities

Water supply system in the urban type sett lement Volzhsky of Samara Region has typical structures: water intakes from wells, water treatment plants, a pumping station of the second elevation with clean water reservoirs, elevated tanks and water supply network. Water supply system plays a signifi cant role in providing consumers with water. Water supply pipelines in the urban type sett lement Volzhsky have considerable deterioration, some emergency pipelines have been replaced with new ones, but with a smaller diameter. Today, the sett lement water system proves equal to its tasks, but if we take into account the new trends in water consumption and putt ing new facilities in operation it will be clear that this system requires substantial modernization.

Sign in / Sign up

Export Citation Format

Share Document