This document provides a quick start tutorial for using SWMM (Storm Water Management Model) software. It describes creating a new project to model a 1.96 hectare urban catchment divided into three sub-catchments that drain into a network of storm sewer conduits and discharge into an open channel. The tutorial explains how to set up the project, draw the objects on the map, and assign properties to the objects.
This document contains information to set up a stormwater drainage model using SWMM. It includes details on the subcatchments, nodes, conduits, rainfall data, and initial parameters. The model contains 7 subcatchments that drain to 11 nodes connected by 11 conduits and 1 outfall. The document provides tables of properties for each subcatchment, node, and conduit to insert into the model. It describes how to insert the rainfall data and run the model simulations to check results such as flow rates and water levels at each node.
This document describes the formulation of a SWMM input file to model stormwater runoff and water quality in an urban watershed. Key steps include:
1) Defining pollutants, land uses, and assigning land use percentages to subcatchments
2) Specifying buildup and washoff parameters for pollutant loading
3) Adding low impact development (LID) controls to certain subcatchments
4) Comparing model results for hydrographs and pollutographs with and without LIDs to analyze their impact on peak flows and pollutant loads.
Planning & Design of Storm water Drainage system for Valsad cityMona Prajapati
This document presents a study on planning and designing a storm water drainage system for Valsad City, India. It discusses how the existing drainage system causes problems like property damage and health issues. The objectives are to provide an efficient drainage system to mitigate storm water runoff effects. The methodology includes data collection, analysis of rainfall data, and hydraulic calculations to design pipe diameters and layout. The results show a total watershed area of 84.02 hectares and recommend installing RCC NP-3 pipes to efficiently drain water from the area.
The document discusses the design of water distribution systems. It states that the design must satisfy water needs and maintain minimum residual pressures. It discusses pressure variations and velocity limits in distribution systems. It introduces the Hazen-Williams equation for calculating head loss in pipes based on flow rate, length, diameter and roughness coefficient. The document outlines Hardy's Cross Method for balancing flows in distribution networks using loop equations. It provides an example of applying the method to calculate pipe diameters and flows in a sample network.
It is based on Journal Paper named
"Mukherjee, M.K.2013, ’Flood Frequency Analysis of River Subernarekha, India, Using Gumbel’s extreme Value Distribution’, IJCER,Vol-3,Issue-7,pp-12-18."
I have studied the journal and make a PPT in the following.
I
This document discusses floods and methods for estimating peak flood discharge. It begins by defining a flood and design flood. It then describes various methods for estimating peak flood discharge, including using physical indicators, empirical formulas, unit hydrographs, the rational method, and flood frequency studies. As an example of applying the rational method, it calculates the peak discharge for a culvert project in Alberta, Canada with a 50-year return period. It also provides an example of using Gumbel's extreme value distribution to estimate flood discharges with 100-year and 150-year return periods based on annual maximum flood data from 1951-1977.
This document provides information on storm drainage design and subsurface drainage systems. It discusses the types and aims of drainage, as well as the design of surface drainage systems including estimation of peak flows using methods like the Rational Formula. It also covers the design of subsurface drainage systems using buried drains, including considerations like drainage coefficients, drain depth and spacing, diameters and gradients. Filters for tile drains are also discussed.
This document contains information to set up a stormwater drainage model using SWMM. It includes details on the subcatchments, nodes, conduits, rainfall data, and initial parameters. The model contains 7 subcatchments that drain to 11 nodes connected by 11 conduits and 1 outfall. The document provides tables of properties for each subcatchment, node, and conduit to insert into the model. It describes how to insert the rainfall data and run the model simulations to check results such as flow rates and water levels at each node.
This document describes the formulation of a SWMM input file to model stormwater runoff and water quality in an urban watershed. Key steps include:
1) Defining pollutants, land uses, and assigning land use percentages to subcatchments
2) Specifying buildup and washoff parameters for pollutant loading
3) Adding low impact development (LID) controls to certain subcatchments
4) Comparing model results for hydrographs and pollutographs with and without LIDs to analyze their impact on peak flows and pollutant loads.
Planning & Design of Storm water Drainage system for Valsad cityMona Prajapati
This document presents a study on planning and designing a storm water drainage system for Valsad City, India. It discusses how the existing drainage system causes problems like property damage and health issues. The objectives are to provide an efficient drainage system to mitigate storm water runoff effects. The methodology includes data collection, analysis of rainfall data, and hydraulic calculations to design pipe diameters and layout. The results show a total watershed area of 84.02 hectares and recommend installing RCC NP-3 pipes to efficiently drain water from the area.
The document discusses the design of water distribution systems. It states that the design must satisfy water needs and maintain minimum residual pressures. It discusses pressure variations and velocity limits in distribution systems. It introduces the Hazen-Williams equation for calculating head loss in pipes based on flow rate, length, diameter and roughness coefficient. The document outlines Hardy's Cross Method for balancing flows in distribution networks using loop equations. It provides an example of applying the method to calculate pipe diameters and flows in a sample network.
It is based on Journal Paper named
"Mukherjee, M.K.2013, ’Flood Frequency Analysis of River Subernarekha, India, Using Gumbel’s extreme Value Distribution’, IJCER,Vol-3,Issue-7,pp-12-18."
I have studied the journal and make a PPT in the following.
I
This document discusses floods and methods for estimating peak flood discharge. It begins by defining a flood and design flood. It then describes various methods for estimating peak flood discharge, including using physical indicators, empirical formulas, unit hydrographs, the rational method, and flood frequency studies. As an example of applying the rational method, it calculates the peak discharge for a culvert project in Alberta, Canada with a 50-year return period. It also provides an example of using Gumbel's extreme value distribution to estimate flood discharges with 100-year and 150-year return periods based on annual maximum flood data from 1951-1977.
This document provides information on storm drainage design and subsurface drainage systems. It discusses the types and aims of drainage, as well as the design of surface drainage systems including estimation of peak flows using methods like the Rational Formula. It also covers the design of subsurface drainage systems using buried drains, including considerations like drainage coefficients, drain depth and spacing, diameters and gradients. Filters for tile drains are also discussed.
The document presents a dam breach analysis project conducted by a group of students. It discusses analyzing the Kalyani dam located in Andhra Pradesh, India to estimate outputs from a potential dam breach including discharge, flooding routes downstream, and inundation maps. The objectives are to determine outflow hydrographs, estimate breach parameters, route peak discharges, and map inundation levels. Methodologies include breach modeling and flood routing simulations using HEC-RAS software. Input data on dam design, river contours, and rainfall are also described.
Watershed models simulate natural processes like water flow, sediment movement, and nutrient cycling within watersheds. They also quantify the impacts of human activities on these processes. Watershed models come in different forms with varying complexity and computational requirements. They are used to address a wide range of environmental and water resource issues like flooding, erosion, pollution, and more. Watershed models can be classified based on how they acquire and treat data, and whether they take a lumped or distributed approach. The key steps in developing and applying a watershed model include establishing objectives, model design, calibration, validation, application, and accounting for uncertainty.
1. The document provides calculations to determine the pre-development and post-development discharge rates (Qp and Qa) for a site using the rational method.
2. It is determined that Qa is greater than Qp, requiring hydraulic structures. The permissible site discharge is calculated to be 0.316 m3/s.
3. Based on calculations, the required site storage is determined to be 42.577 m3. Dimensions for an above-ground storage tank are provided to accommodate this storage.
This is a easy-to-learn material to guide how to formulate SWMM input file. After following, you will know how to simulate the hydrology of the study watershed. Also check the floodings of all nodes.
This document summarizes a 51 MLD sewage treatment plant (STP) in Hyderabad that uses C-Tech basin technology. The STP treats wastewater from specific areas to reduce BOD, COD, and TSS and protect the Musi River from pollution. It describes the STP's inlet/screening processes, C-Tech basins, chlorine contact tank, and achieves treated effluent standards. Special features include automation through a SCADA system and PLC-based intelligent control. The plant is achieving its treatment goals and helping improve water quality in the Musi River.
This document presents the analysis of maximum hourly rainfall for the design of storm drain networks in Surat City, India. It discusses the objectives of analyzing rainfall intensity and frequency relationships to design storm drains for an illustrative region. Rainfall data was collected from Silvassa and Surat over 29 and 30 years respectively and analyzed using the Gumbel distribution method to estimate 1-hour maximum rainfall depths for different return periods. The design of a storm drain network for a sample area is also presented considering rainfall intensity, runoff calculation, and hydraulic design principles. Site visits were conducted to understand current construction practices.
HEC-RAS is a computer program that models the hydraulics of water flow through natural rivers and other channels. The program is one-dimensional, meaning that there is no direct modeling of the hydraulic effect of cross section shape changes, bends, and other two- and three-dimensional aspects of flow. The program was developed by the US Department of Defense, Army Corps of Engineers in order to manage the rivers, harbors, and other public works under their jurisdiction; it has found wide acceptance by many others since its public release in 1995.
Design of sewerage collection system and cost estimationVijay Kumar
Vijay Kumar from the Department of Civil Engineering at Jamia Millia Islamia submitted a report on the design of a sewerage system. The report reviewed the existing sewerage system criteria, designed a new sewerage system, and estimated the costs according to the Delhi Schedule of Rates from 2012. It described the purpose of a sewerage system, different sewer types, sewer appurtenances, design considerations and parameters, hydraulic design of sewer lines from manhole to manhole, and a cost estimate breakdown of the new sewerage system project.
A presentation about nitrogen removal from municipal wastewater in Falmouth, Massachusetts. Presented by Amy Lowell, Assistant Wastewater Manager for the town of Falmouth, during the Buzzards Bay Coalition's 2013 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
The document provides details about the Chennai floods of 2015. It describes how Chennai received over 33 cm of rain in a 24-hour period from December 1-2, causing widespread flooding and damage. Over 500 people lost their lives. The document examines factors like heavy rainfall, changes in weather patterns from global warming, destruction of wetlands, improper sewage and drainage systems, and human development that exacerbated the flooding in Chennai. It provides statistics on rainfall amounts, discusses the city's geology and infrastructure, and analyzes the impacts and response to the floods.
Hardy cross method of pipe network analysissidrarashiddar
Hardy Cross Method of pipe network analysis has revolutionized the municipal water supply design. i.e., EPANET, a public domain software of water supply, uses the Hardy cross method for pipe network analysis. It is an iterative approach to estimate the flows within the pipe network where inflows (supply) and outflows (demand) with pipe characteristics are known.
This presentation discusses drought monitoring and water resource management. It defines drought and outlines the objectives of understanding drought types, indicators, impacts, and applying water management strategies. It reviews literature on indices used to monitor meteorological, hydrological and remote sensing aspects of drought. These indices include SPI, SWI and NDVI. The presentation describes various water resource management approaches that can be used during drought, such as improved irrigation, groundwater harvesting, and surface water management through reservoirs and river interlinking. It stresses the importance of integrated management and community involvement in water provision and conservation.
This document discusses water quality guidelines recommended by the WHO. It outlines parameters for drinking water quality including acceptability, microbiological, chemical, and radiological aspects. Key parameters include turbidity, color, taste, odor, microbiological indicators like coliform bacteria, and chemical constituents like arsenic, fluoride, lead, nitrates and certain organic compounds. The document also discusses sources of water like rainwater, surface water, and groundwater and different types of water pollution from industrial, agricultural and domestic sources.
This document discusses hydrographs and unit hydrographs. It defines a hydrograph as a graph showing the rate of flow versus time past a specific point in a river. It notes that hydrographs are commonly used in sewerage design. It then describes the components of a hydrograph including the rising limb, recession limb, peak discharge, lag time, and time to peak. Finally, it discusses unit hydrographs, defining a unit hydrograph as the runoff resulting from 1 unit of rainfall excess. It provides examples of deriving unit hydrographs from observed hydrographs and flood hydrographs.
Water and Wastewater Mangement in India 2010 - SampleNetscribes, Inc.
Water is one of the most invaluable resources of nature and increasing water consumption is leading to its depletion. Various sectors across India are rapidly increasing and are actively contributing to the pollution of surface as well as groundwater. This calls for the active need of water management. Although water has been one of the most thriving and important issues amongst the government concerns, the private players are actively granting their support to market efficient techniques and equipments to manage water. The wastewater treatment market in India is growing at 20% and techniques like watershed management, rainwater harvesting, desalination, filtration, river-interlinking, effluent treatment and sewage treatment are finding huge importance in major cities which are the major contributors to water pollution in India.
The report begins with an overview of water situation and consumption structure in India across various sectors namely, agriculture, domestic and industries showing the growth in water consumption across the masses in India. This is followed by a section which depicts the amount of wastewater generated across sectors and the level of degradation.
It also highlights the lakes and water bodies that are under threat of depleting and being polluted.
The market overview section gives the size and growth of the wastewater treatment market and shows the various techniques of water and wastewater treatment. It also gives an in-depth analysis of the various techniques and their status in India. The characteristics and trends in the market have been analyzed and include increasing urbanization, initiatives taken at the corporate level, initiatives of various research and training institutes, increasing licensing agreements, various summits and seminars, initiatives for consumer awareness and public private partnerships. A brief analysis of the issues/challenges hindering growth are also highlighted including policy failures and institutional weaknesses, coordination and technological loopholes, multiplicity of organizations and inadequacy in generation of revenue to meet costs.
Various government bodies and programmes as well as initiatives by the NGOs that have been actively involved in conserving water and regulating its consumption and pollution have been showcased.
The competitive landscape provides a look into the nature of the market and the activities of the players and the level of competition between them. It also compares the private players according to the products and services provided by them. Brief profile with short description of the major domestic and foreign players is also included. Furthermore, key developments in the market over the last one year have also been highlighted.
1. The document discusses key concepts in hydrology including the hydrologic cycle, water budget equation, and groundwater components.
2. The hydrologic cycle describes the continuous movement of water on, above, and below the surface of the Earth, including evaporation, transpiration, precipitation, and subsurface flow.
3. The water budget equation expresses the principle of conservation of mass by equating water inputs such as precipitation to outputs like evapotranspiration and changes in storage over a given time period for a defined catchment area.
DESIGN & ANALYSIS OF WATER DISTRIBUTION NETWORK MODEL BY EPANET A CASE STUDYvivatechijri
Water is one of the primary needs of all living being of world. Water supply system is a system ofengineered hydraulic and components which provide water supply. The water distribution network plays a virtualrole in preserving and providing desirable life quality to the public, of which reliability of supply is the majorcomponent. A community can only thrive if it can ensure the availability of safe drinking water for its members. Asthe population of any community increases, the demand for water also increases and imposes additional load tothe existing water distribution system. As a result, the existing water distribution system may become unreliable tomeet the demand of the increased population. In order to fulfil the water demand of the continuously growingpopulation, it is essential to provide the sufficient and uniform quantity of water through the designed network ofpipes. EPANET is computer program that performs extended period simulation of hydraulic behaviour withinpressurized pipe network. The study presents the hydraulic analysis of pipe line network of Narangi area in Virarcity using EPANET 2.0. The result obtained verified that the pressure at all junction and the flows with theirvelocities at all pipes are feasible enough to provide adequate water to the network of study area and also help tounderstand the pipelines system of the study area in a better way. The study also deals with the future demand ofthe area.
Bangalore water supply resources_Schools India Water Portal_2011India Water Portal
Bangalore faces increasing water shortages as its population grows rapidly. The city's water supply comes primarily from two sources - 21% from groundwater and 79% from surface water sources like the Cauvery River. However, nearly half of the city's water is lost due to leaky infrastructure. While the water board treats over 1 billion liters of water and sewage daily, the amounts of sewage generated and treated water available are both insufficient to meet current demand, leading to a deficit of over 600 million liters per day. Unless action is taken to conserve water resources through rainwater harvesting, reducing waste, and other measures, the water crisis in Bangalore is expected to worsen as the population continues to rise.
This document provides instructions for adding low impact development (LID) controls to subcatchments in EPA's SWMM 5.1 hydrological model. It describes how to design 6 types of LID controls by specifying their layer parameters. Tables are provided giving parameter values for green roofs, permeable pavement, bio-retention cells, infiltration trenches, rain barrels, and rain gardens. The document then explains how to assign these designed LID controls to different subcatchments and input their planning parameters.
This document provides an overview of using the Storm Water Management Model (SWMM) to model urban runoff quantity. SWMM can be used to simulate stormwater runoff, combined and sanitary sewers, and other drainage systems. It tracks flow rate, depth, and water quality over time. The document describes modeling runoff quantity using SWMM which requires data on physical catchment characteristics, rainfall, and infiltration. It also provides details on the study area, including subcatchment properties, junction elevations, and conduit lengths.
The document presents a dam breach analysis project conducted by a group of students. It discusses analyzing the Kalyani dam located in Andhra Pradesh, India to estimate outputs from a potential dam breach including discharge, flooding routes downstream, and inundation maps. The objectives are to determine outflow hydrographs, estimate breach parameters, route peak discharges, and map inundation levels. Methodologies include breach modeling and flood routing simulations using HEC-RAS software. Input data on dam design, river contours, and rainfall are also described.
Watershed models simulate natural processes like water flow, sediment movement, and nutrient cycling within watersheds. They also quantify the impacts of human activities on these processes. Watershed models come in different forms with varying complexity and computational requirements. They are used to address a wide range of environmental and water resource issues like flooding, erosion, pollution, and more. Watershed models can be classified based on how they acquire and treat data, and whether they take a lumped or distributed approach. The key steps in developing and applying a watershed model include establishing objectives, model design, calibration, validation, application, and accounting for uncertainty.
1. The document provides calculations to determine the pre-development and post-development discharge rates (Qp and Qa) for a site using the rational method.
2. It is determined that Qa is greater than Qp, requiring hydraulic structures. The permissible site discharge is calculated to be 0.316 m3/s.
3. Based on calculations, the required site storage is determined to be 42.577 m3. Dimensions for an above-ground storage tank are provided to accommodate this storage.
This is a easy-to-learn material to guide how to formulate SWMM input file. After following, you will know how to simulate the hydrology of the study watershed. Also check the floodings of all nodes.
This document summarizes a 51 MLD sewage treatment plant (STP) in Hyderabad that uses C-Tech basin technology. The STP treats wastewater from specific areas to reduce BOD, COD, and TSS and protect the Musi River from pollution. It describes the STP's inlet/screening processes, C-Tech basins, chlorine contact tank, and achieves treated effluent standards. Special features include automation through a SCADA system and PLC-based intelligent control. The plant is achieving its treatment goals and helping improve water quality in the Musi River.
This document presents the analysis of maximum hourly rainfall for the design of storm drain networks in Surat City, India. It discusses the objectives of analyzing rainfall intensity and frequency relationships to design storm drains for an illustrative region. Rainfall data was collected from Silvassa and Surat over 29 and 30 years respectively and analyzed using the Gumbel distribution method to estimate 1-hour maximum rainfall depths for different return periods. The design of a storm drain network for a sample area is also presented considering rainfall intensity, runoff calculation, and hydraulic design principles. Site visits were conducted to understand current construction practices.
HEC-RAS is a computer program that models the hydraulics of water flow through natural rivers and other channels. The program is one-dimensional, meaning that there is no direct modeling of the hydraulic effect of cross section shape changes, bends, and other two- and three-dimensional aspects of flow. The program was developed by the US Department of Defense, Army Corps of Engineers in order to manage the rivers, harbors, and other public works under their jurisdiction; it has found wide acceptance by many others since its public release in 1995.
Design of sewerage collection system and cost estimationVijay Kumar
Vijay Kumar from the Department of Civil Engineering at Jamia Millia Islamia submitted a report on the design of a sewerage system. The report reviewed the existing sewerage system criteria, designed a new sewerage system, and estimated the costs according to the Delhi Schedule of Rates from 2012. It described the purpose of a sewerage system, different sewer types, sewer appurtenances, design considerations and parameters, hydraulic design of sewer lines from manhole to manhole, and a cost estimate breakdown of the new sewerage system project.
A presentation about nitrogen removal from municipal wastewater in Falmouth, Massachusetts. Presented by Amy Lowell, Assistant Wastewater Manager for the town of Falmouth, during the Buzzards Bay Coalition's 2013 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
The document provides details about the Chennai floods of 2015. It describes how Chennai received over 33 cm of rain in a 24-hour period from December 1-2, causing widespread flooding and damage. Over 500 people lost their lives. The document examines factors like heavy rainfall, changes in weather patterns from global warming, destruction of wetlands, improper sewage and drainage systems, and human development that exacerbated the flooding in Chennai. It provides statistics on rainfall amounts, discusses the city's geology and infrastructure, and analyzes the impacts and response to the floods.
Hardy cross method of pipe network analysissidrarashiddar
Hardy Cross Method of pipe network analysis has revolutionized the municipal water supply design. i.e., EPANET, a public domain software of water supply, uses the Hardy cross method for pipe network analysis. It is an iterative approach to estimate the flows within the pipe network where inflows (supply) and outflows (demand) with pipe characteristics are known.
This presentation discusses drought monitoring and water resource management. It defines drought and outlines the objectives of understanding drought types, indicators, impacts, and applying water management strategies. It reviews literature on indices used to monitor meteorological, hydrological and remote sensing aspects of drought. These indices include SPI, SWI and NDVI. The presentation describes various water resource management approaches that can be used during drought, such as improved irrigation, groundwater harvesting, and surface water management through reservoirs and river interlinking. It stresses the importance of integrated management and community involvement in water provision and conservation.
This document discusses water quality guidelines recommended by the WHO. It outlines parameters for drinking water quality including acceptability, microbiological, chemical, and radiological aspects. Key parameters include turbidity, color, taste, odor, microbiological indicators like coliform bacteria, and chemical constituents like arsenic, fluoride, lead, nitrates and certain organic compounds. The document also discusses sources of water like rainwater, surface water, and groundwater and different types of water pollution from industrial, agricultural and domestic sources.
This document discusses hydrographs and unit hydrographs. It defines a hydrograph as a graph showing the rate of flow versus time past a specific point in a river. It notes that hydrographs are commonly used in sewerage design. It then describes the components of a hydrograph including the rising limb, recession limb, peak discharge, lag time, and time to peak. Finally, it discusses unit hydrographs, defining a unit hydrograph as the runoff resulting from 1 unit of rainfall excess. It provides examples of deriving unit hydrographs from observed hydrographs and flood hydrographs.
Water and Wastewater Mangement in India 2010 - SampleNetscribes, Inc.
Water is one of the most invaluable resources of nature and increasing water consumption is leading to its depletion. Various sectors across India are rapidly increasing and are actively contributing to the pollution of surface as well as groundwater. This calls for the active need of water management. Although water has been one of the most thriving and important issues amongst the government concerns, the private players are actively granting their support to market efficient techniques and equipments to manage water. The wastewater treatment market in India is growing at 20% and techniques like watershed management, rainwater harvesting, desalination, filtration, river-interlinking, effluent treatment and sewage treatment are finding huge importance in major cities which are the major contributors to water pollution in India.
The report begins with an overview of water situation and consumption structure in India across various sectors namely, agriculture, domestic and industries showing the growth in water consumption across the masses in India. This is followed by a section which depicts the amount of wastewater generated across sectors and the level of degradation.
It also highlights the lakes and water bodies that are under threat of depleting and being polluted.
The market overview section gives the size and growth of the wastewater treatment market and shows the various techniques of water and wastewater treatment. It also gives an in-depth analysis of the various techniques and their status in India. The characteristics and trends in the market have been analyzed and include increasing urbanization, initiatives taken at the corporate level, initiatives of various research and training institutes, increasing licensing agreements, various summits and seminars, initiatives for consumer awareness and public private partnerships. A brief analysis of the issues/challenges hindering growth are also highlighted including policy failures and institutional weaknesses, coordination and technological loopholes, multiplicity of organizations and inadequacy in generation of revenue to meet costs.
Various government bodies and programmes as well as initiatives by the NGOs that have been actively involved in conserving water and regulating its consumption and pollution have been showcased.
The competitive landscape provides a look into the nature of the market and the activities of the players and the level of competition between them. It also compares the private players according to the products and services provided by them. Brief profile with short description of the major domestic and foreign players is also included. Furthermore, key developments in the market over the last one year have also been highlighted.
1. The document discusses key concepts in hydrology including the hydrologic cycle, water budget equation, and groundwater components.
2. The hydrologic cycle describes the continuous movement of water on, above, and below the surface of the Earth, including evaporation, transpiration, precipitation, and subsurface flow.
3. The water budget equation expresses the principle of conservation of mass by equating water inputs such as precipitation to outputs like evapotranspiration and changes in storage over a given time period for a defined catchment area.
DESIGN & ANALYSIS OF WATER DISTRIBUTION NETWORK MODEL BY EPANET A CASE STUDYvivatechijri
Water is one of the primary needs of all living being of world. Water supply system is a system ofengineered hydraulic and components which provide water supply. The water distribution network plays a virtualrole in preserving and providing desirable life quality to the public, of which reliability of supply is the majorcomponent. A community can only thrive if it can ensure the availability of safe drinking water for its members. Asthe population of any community increases, the demand for water also increases and imposes additional load tothe existing water distribution system. As a result, the existing water distribution system may become unreliable tomeet the demand of the increased population. In order to fulfil the water demand of the continuously growingpopulation, it is essential to provide the sufficient and uniform quantity of water through the designed network ofpipes. EPANET is computer program that performs extended period simulation of hydraulic behaviour withinpressurized pipe network. The study presents the hydraulic analysis of pipe line network of Narangi area in Virarcity using EPANET 2.0. The result obtained verified that the pressure at all junction and the flows with theirvelocities at all pipes are feasible enough to provide adequate water to the network of study area and also help tounderstand the pipelines system of the study area in a better way. The study also deals with the future demand ofthe area.
Bangalore water supply resources_Schools India Water Portal_2011India Water Portal
Bangalore faces increasing water shortages as its population grows rapidly. The city's water supply comes primarily from two sources - 21% from groundwater and 79% from surface water sources like the Cauvery River. However, nearly half of the city's water is lost due to leaky infrastructure. While the water board treats over 1 billion liters of water and sewage daily, the amounts of sewage generated and treated water available are both insufficient to meet current demand, leading to a deficit of over 600 million liters per day. Unless action is taken to conserve water resources through rainwater harvesting, reducing waste, and other measures, the water crisis in Bangalore is expected to worsen as the population continues to rise.
This document provides instructions for adding low impact development (LID) controls to subcatchments in EPA's SWMM 5.1 hydrological model. It describes how to design 6 types of LID controls by specifying their layer parameters. Tables are provided giving parameter values for green roofs, permeable pavement, bio-retention cells, infiltration trenches, rain barrels, and rain gardens. The document then explains how to assign these designed LID controls to different subcatchments and input their planning parameters.
This document provides an overview of using the Storm Water Management Model (SWMM) to model urban runoff quantity. SWMM can be used to simulate stormwater runoff, combined and sanitary sewers, and other drainage systems. It tracks flow rate, depth, and water quality over time. The document describes modeling runoff quantity using SWMM which requires data on physical catchment characteristics, rainfall, and infiltration. It also provides details on the study area, including subcatchment properties, junction elevations, and conduit lengths.
This document outlines Nursyazana Binti Ahmad Zulkifli's final year project on using the Storm Water Management Model (SWMM) to study peak flow attenuation of On Site Detention (OSD) for different types of residential developments. The objectives are to develop a SWMM model for OSD, study flow attenuation of OSD, and evaluate OSD for terrace houses, semi-detached houses, and bungalows. The methodology involves literature review, data collection, modeling using SWMM, and assessment of flow attenuation. The expected outcomes are SWMM models of OSD for different developments and establishing the size of OSD needed for particular flow attenuation levels.
InfoSWMM Sustain, InfoSWMM 2D, and SWMMLive are software tools for evaluating and modeling urban stormwater management practices. InfoSWMM Sustain allows users to optimize the placement and sizing of green infrastructure practices like bioswales and rain gardens to meet sustainability goals. It evaluates multiple scenarios and identifies cost-effective solutions. InfoSWMM 2D models surface flooding in 2D and can be coupled with InfoSWMM for integrated 1D-2D modeling. SWMMLive allows testing of control strategies in real-time and evaluating their impacts on the stormwater system.
Storm water design what is it all aboutrileycondon6
Storm water design involves managing both the quality and quantity of stormwater runoff using engineered structures and devices. It has both technical and institutional aspects that must comply with local design codes. Stormwater management is important to prevent flooding, erosion, and pollution of natural waters. Engineering companies provide design services for stormwater infrastructure and plumbing systems to store, treat, and drain stormwater runoff from developments in an efficient and cost-effective manner, while meeting regulatory standards.
This document summarizes a public information meeting about a study investigating basement flooding and stormwater runoff quality control in Study Area 36 in Etobicoke, Toronto. The meeting provided background on the study purpose and objectives, potential causes of flooding in the area, and possible alternative solutions. Attendees were encouraged to provide feedback and input on the evaluation criteria for solutions. Homeowners were also informed about actions they can take to prevent future flooding and about the City's subsidy program for flood protection devices.
This document discusses hydrology and the water cycle. It begins by explaining that hydrology studies the flows of water between the atmosphere, land, and oceans, which make up the water cycle. It then describes the different types of water flows, including precipitation, infiltration, evaporation, transpiration, surface runoff, and groundwater flow. The document also provides statistics on the quantities and distributions of water on Earth. It finishes by outlining some of the uses of hydrology in areas like predicting floods, assessing reservoir needs, and designing hydraulic structures.
The document discusses implementing an integrated storm water management program for the city of Killeen. It outlines elements of the program including drainage maintenance, capital improvements, and storm water management plans. It also discusses issues driving the need for improved drainage infrastructure maintenance like citizen concerns, water quality and quantity control issues from urbanization. Potential solutions discussed include code revisions, public education, debris removal, inspections, and design/maintenance standards.
inp.PINS a link between GIS and Storm Water Management Model by Rui Daniel PinaMapWindow GIS
inp.PINS is an application developed to automatically link Geographical Information Systems (GIS) and Storm Water Management Model (SWMM).
SWMM is a public domain software, developed by the US-EPA, widely used for planning, analysis and design of drainage systems. As it is based on physical models, GIS with all the complex functions and modules available is extremely useful to characterize the SWMM base input model, and it is also a powerful tool to store, access, manipulate and visualize the SWMM inputs and results.
inp.PINS has been applied for floodplain mapping (delineation of flood hazard maps) and reveals to be an efficient way to link GIS with SWMM. The interoperability achieved is very effective for the analysis required, since the process leads to an excellent characterization of the catchment and all model inputs, and a better analysis of the modelling results, taking advantage of both GIS and SWMM capabilities at the same time.
inp.PINS is based on MapWinGIS.ocx and is now driven by the community needs the open source community is able to improve the capabilities, and also to make it even more flexible and this communication intends to present and discuss future developments on this project.
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1.
SWMM QUICK START TUTORIAL
1. Example study area
In this tutorial we will model a drainage system for a 1.96 hectare urban catchment. The system
layout is shown in Figure 1. The area will be divided into three sub‐catchments, A1, A2 and A3.
The network consists of storm sewer conduits L01 through L03, and conduit junctions N1, N2
and N3, where flows from sub‐catchments A1, A2 and A3 enter the system . The system
discharges to an open channel at the point labeled Out1. We will first go through the steps of
creating the objects shown in this diagram on SWMM's study area map and setting the various
properties of these objects. Then we will simulate the water quantity (quality not included)
response to a 235 mm, 2‐hour rainfall event.
Figure 1. Example study area.
2. Project Setup
Our first task is to create a new SWMM project and make sure that certain default options are
selected. Using these defaults will simplify the data entry tasks later on.
1. Launch EPA SWMM if it is not already running and select File >> New from the Main
Menu bar to create a new project
2. Select Project >> Defaults to open the Project Defaults dialog.
3. On the ID Labels page of the dialog, set the ID Prefixes as shown in Figure 2. This will make
SWMM automatically label new objects with consecutive numbers following the
designated prefix.
1
2.
Figure 2. Default ID labeling for tutorial example
4. On the Subcatchments page of the dialog set the following default values:
% Slope 2
N‐Imperv. 0.01
N‐Perv. 0.10
Dstore‐Imperv. 0.05
Dstore‐Perv 0.05
%Zero‐Imperv. 25
Infil. Model <click to edit>
‐ Method Curve Number
5. On the Nodes/Links page, set the Flow Units to CMS.
6. Click OK to accept these choices and close the dialog. If you wanted to save these
choices for all future new projects you could check the Save box at the bottom of the
form before accepting it.
Next we will set some map display options so that ID labels and symbols will be displayed as
we add objects to the study area map, and links will have direction arrows.
2
3.
1. Select Tools>> Map Display Options to bring up the Map Options dialog (see Figure 3).
2. Select the Subcatchments page, set the Fill Style to Diagonal and the Symbol Size to 5.
3. Then select the Nodes page and set the Node Size to 5.
4. Select the Annotation page and check on the boxes that will display ID labels for
Subcatchments, Nodes, and Links. Leave the others un‐checked.
5. Finally, select the Flow Arrows page, select the Filled arrow style, and set the arrow
size to 7.
6. Click the OK button to accept these choices and close the dialog.
Figure 3. Map Options dialog.
Before creating the network objects, it is important to select the proper units. This can be done
by selecting proper flow units (
Finally, look in the status bar at the bottom of the main window and check that the Auto‐
Length feature is off and double check that your units are CMS.
3. Drawing Objects
We are now ready to begin adding components to the Study Area Map. We will start with the
subcatchments.
1. Begin by clicking the button on the Object Toolbar. (If the toolbar is not
visible then select View >> Toolbars >> Object). Notice how the mouse cursor changes
shape to a pencil.
2. Move the mouse to the map location where one of the corners of subcatchment A1
lies and left‐click the mouse.
3
5.
4. Repeat this procedure for conduits L02 and L03.
Although all of our conduits were drawn as straight lines, it is possible to draw a curved link by
left‐clicking at intermediate points where the direction of the link changes before clicking on
the end node.
To complete the construction of our study area schematic we need to add a rain gage.
1. Click the Rain Gage button on the Object Toolbar.
2. Move the mouse over the Study Area Map to where the gage should be located and
left‐ click the mouse.
At this point we have completed drawing the example study area. Your system should look
like the one in Figure 1. If a rain gage, subcatchment or node is out of position you can move it
by doing the following:
1. If the button is not already depressed, click it to place the map in Object
Selection mode.
2. Click on the object to be moved.
3. Drag the object with the left mouse button held down to its new position.
To re‐shape a subcatchment's outline:
1. With the map in Object Selection mode, click on the subcatchment's centroid
(indicated by a solid square within the subcatchment) to select it.
2. Then click the button on the Map Toolbar to put the map into Vertex Selection
mode.
3. Select a vertex point on the subcatchment outline by clicking on it (note how the
selected vertex is indicated by a filled solid square).
4. Drag the vertex to its new position with the left mouse button held down.
5. If need be, vertices can be added or deleted from the outline by right‐clicking the
mouse and selecting the appropriate option from the popup menu that appears.
6. When finished, click the button to return to Object Selection mode.
This same procedure can also be used to re‐shape a link.
4. Setting Object Properties
As visual objects are added to our project, SWMM assigns them a default set of properties. To
change the value of a specific property for an object we must select the object into the
Property Editor (see Figure 5). There are several different ways to do this. If the Editor is
already visible, then you can simply click on the object or select it from the Data page of the
Browser Panel of the main window. If the Editor is not visible then you can make it appear by
one of the following actions:
• double‐click the object on the map,
• or right‐click on the object and select Properties from the pop‐up menu that appears,
• or select the object from the Data page of the Browser panel and then click the Browser’s
5
6.
button.
Whenever the Property Editor has the focus you can press the F1 key to obtain a more detailed
description of the properties listed.
Two key properties of our subcatchments that need to be set are the rain gage that
supplies rainfall data to the subcatchment and the node of the drainage system that
receives runoff from the subcatchment. Since all of our subcatchments utilize the same rain
gage, Gage1, we can use a shortcut method to set this property for all subcatchments at once:
1. From the main menu select Edit >>Select All.
2. Then select Edit >> Group Edit to make a Group Editor dialog appear (see Figure 6).
3. Select Subcatchment as the type of object to edit, Rain Gage as the property to edit,
and type in Gage1 as the new value.
4. Click OK to change the rain gage of all subcatchments to Gage1. A confirmation dialog
will appear noting that 3 subcatchments have changed. Select “No” when asked to continue
editing.
Figure 5. Property Editor window.
6
12.
• The Conduit Surcharge Summary table shows that Conduit L01, was surcharged and
therefore appears to be undersized.
Viewing Results on the Map
Simulation results (as well as some design parameters, such as subcatchment area, node invert
elevation, and link maximum depth) can be viewed in color‐coded fashion on the study area
map. To view a particular variable in this fashion:
1. Select the Map page of the Browser panel.
2. Select the variables to view for Subcatchments, Nodes, and Links from the dropdown
combo boxes appearing in the Themes panel. In Figure 11, subcatchment runoff and
link flow have been selected for viewing.
3. The color‐coding used for a particular variable is displayed with a legend on the study
area map. To toggle the display of a legend, select View >> Legends.
4. To move a legend to another location, drag it with the left mouse button held down.
5. To change the color‐coding and the breakpoint values for different colors, select View >>
Legends >> Modify and then the pertinent class of object (or if the legend is already
visible, simply right‐click on it). To view numerical values for the variables being
displayed on the map, select Tools >> Map Display Options and then select the
Annotation page of the Map Options dialog. Use the check boxes for Subcatchment
Values, Node Values, and Link Values to specify what kind of annotation to add.
6. The Date / Time of Day / Elapsed Time controls on the Map Browser can be used to
move through the simulation results in time. Figure 11 depicts results at 1 hours and 30
minutes into the simulation.
7. You can use the controls in the Animator panel of the Map Browser (see Figure 11) to
animate the map display through time. For example, pressing the button will run
the animation forward in time.
12
15.
After a plot is created you can:
• customize its appearance by selecting Report >> Customize or right clicking on the plot,
• copy it to the clipboard and paste it into another application by selecting Edit >>
Copy To or clicking on the Standard Toolbar
• print it by selecting File >> Print or File >> Print Preview (use File >> Page Setup first to
set margins, orientation, etc.).
Viewing a Profile Plot
SWMM can generate profile plots showing how water surface depth varies across a path of
connected nodes and links. Let's create such a plot for the conduits connecting junction N1 to
the outfall Out1 of our example drainage system. To do this:
1. Select Report >> Graph >> Profile or simply click on the Standard Toolbar.
2. Either enter N1 in the Start Node field of the Profile Plot dialog that appears (see Figure
14) or select it on the map or from the Data Browser and click the button next to
the field.
3. Do the same for node Out1 in the End Node field of the dialog.
4. Click the Find Path button. An ordered list of the links forming a connected path
between the specified Start and End nodes will be displayed in the Links in Profile box.
You can edit the entries in this box if need be.
5. Click the OK button to create the plot, showing the water surface profile as it exists at
the simulation time currently selected in the Map Browser (see Figure 15).
Figure 14. Profile Plot dialog.
15