Water Pressure Management for Khao Chaison Branch PWA by EPANET 2.0 Mathematical Model

Abstract

Water pressure management for the Khao Chaison Provincial Waterworks Authority by using the EPANET 2.0 mathematical model. 1.To study the hydraulic behavior of the water supply system in the area of the Bang Kaeo water distribution station and water distribution station Provincial Waterworks Authority Khao Chaison Branch Using the EPANET 2.0 math model and 2. to apply the EPANET 2.0 mathematical model in water pressure management. of the Provincial Waterworks Authority, Khao Chaison Branch; and 3. To analyze the capacity of the pipeline network. In the case of water demand and water loss increased by 30 percent from the present, this study can simulate the water supply system of the study area in EPANET 2.0 program with 555 Node demand points representing the current water users and Number of nodes representing water pressure measurement points for calibration: 17 points, 21 closed state water valves, 12 controlled water gates, three reservoirs, and 578 pipelines. The model was calibrated with 17 local water pressure values. It was found that the mean water pressure from the model was 12.108 m, and the average water pressure in the field was 12.126 m. The difference was 0.245 m., or as %, the difference was 2.572 %. The square root of the mean square error (RMSE) was 0.789, and the correlation coefficient r was 0.890. Found the Demand calibration results in the model in the supply area. Khao Chaison district water, the low zone, has the highest water loss rate and water pressure management results With the EPANET 2.0 mathematical model using data on water user demand and water loss in October 2018 for analysis. It was found that the EPANET 2.0 mathematical model can help in the research and management of water pressure. The simulation of adjusting the water supply boundary and adjusting the water distribution model, installing a control valve device, placing a pressure pipe well defined, and finding the water pressure was sufficient. And suitable for use in all areas and amount of water demand of each area in time intervals. It also affects the reduction of the rate of water leakage in the system. That means water pressure management. It can apply the model's guidelines, and from the above results, the results of water pressure management can be concluded.