Abstract
This paper represents the analysis and design of the Water Distribution Network (WDN) system using EPANET for Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur, Bangladesh. Supply of water is essentially required for academic, administrative, student hostel and residential buildings according to their occupancies. Water supply system with sufficient pressure head and technical sustainability is nowadays a challenging task for the researcher, respected authority and government tackling the crisis in provided safe water due to the rapid increase in population. EPANET is a public domain software developed by the US Environmental Protection Agency (EPA) which is used widely to design and analysis of water supply network system with reference to technical sustainability. HSTU is a renowned public university located at northern part of Bangladesh having 89 acres campus area and population around Ten Thousand (2020) including teachers, students and staffs. Present Water Distribution System in HSTU campus has been found inadequate to cover the total campus and most the building has individual suction pump. In recent future such types of water distribution network system in HSTU may or may not be suitable. Hence, this study is all about the analysis and design of a new water distribution network and provide conclusion about the suitability of the network for recent future. Various public demands, quantities of inflows and out flows of the over-head reservoir are taken into consideration during the analysis. Study materials are to be used for this study include HSTU campus plan, network parameters such as block wise population, and water demand, elevations, pipe length and EPANET software. An extended period simulation of water distribution network system is carried out during the analysis using EPANET. This study is carried to provide the knowledge about various demands, pressure head, pipe flow and diameter, head losses and a new network of supply will make aware of the new demands. Water distribution network system design using EPANET will provide an overall improvement over the existing network and evaluate the supply network for future.
Highlights
Water is an inorganic and transparent chemical substance that is nearly tasteless, colorless and odorless
Water distribution network system in Hajee Mohammad Danesh Science and Technology University (HSTU) campus consists of 112 nodes or junctions, 112 cast iron links or pipes of varying diameter, 2 pumps, 2 elevated storage tanks and underground water as source reservoirs
An extended period simulation of Water Distribution Network (WDN) system using EPANET was conducted and changes in the hydraulic parameter like nodal demand, pressure and pipe flow, velocity, head loss were observed at each hydraulic time steps. 24 hours simulation period was selected within which water was supplied twice from 12 AM to 3 AM and 12PM to 3 PM
Summary
Water is an inorganic and transparent chemical substance that is nearly tasteless, colorless and odorless. It is the main component of the of the hydrosphere strata of the earth and compulsory for all living organisms. Greater portion of primitive civilizations rise near water sources. Around 3500 years ago human began transporting water through pipes [1]. With progressive population growth the needs, the incremental water supply demand substantially increased day by day. This is leading to a crisis of water management in many locations which is acknowledged in various international declaration [3]
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