COURSE OUTLINE. (Name of Course Developer: Prof. Madan Kumar Jha, AgFE Department, IIT Kharagpur, Kharagpur )

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1 Subject Name: GROUNDWATER, WELLS AND PUMPS (2+1) COURSE OUTLINE (Name of Course Developer: Prof. Madan Kumar Jha, AgFE Department, IIT Kharagpur, Kharagpur ) Module 1: Fundamentals of Groundwater Lesson 1: Introduction to Groundwater 1.1 What is Groundwater? 1.2 Groundwater and the Water Cycle 1.3 Importance of Groundwater 1.4 Groundwater Scenario: Global and Indian Perspectives Lesson 2: Occurrence of Groundwater 2.1 Vertical Distribution of Subsurface Water 2.2 Types of Subsurface Formations 2.3 Aquifer and Confining Layers 2.4 Origin and Age of Groundwater 2.5 Groundwater Regions of India Lesson 3: Aquifer and Its Properties 3.1 Introduction 3.2 Types of Aquifers 3.3 Properties of Aquifers 3.4 Water-Yielding Mechanisms of Aquifers 3.5 Example Problems Lesson 4: Principles of Groundwater Flow 4.1 Concept of Fluid Potential and Hydraulic Head 4.2 Darcy's Law 4.3 Validity of Darcy s Law 4.4 Seepage Velocity 4.5 Hydraulic Conductivity and Transmissivity 4.6 Leakage Factor Lesson 5: Governing Equations of Groundwater Flow 5.1 Introduction 5.2 General Form of Groundwater Flow Equation 5.3 Equations for Groundwater Flow in Confined Aquifers 5.4 Equations for Groundwater Flow in Unconfined Aquifers 5.5 Equations for Groundwater Flow in Leaky Confined Aquifers 5.6 Solution of Groundwater Flow Equations

2 2 Lesson 6: Analysis of Steady Groundwater Flow 6.1 Steady Flow in Confined Aquifers 6.2 Steady flow in Unconfined Aquifers 6.3 Examples Problems Lesson 7: Groundwater Investigation 7.1 Scale of Groundwater Investigation 7.2 Surface Methods of Groundwater Exploration 7.3 Subsurface Methods of Groundwater Exploration Module 2: Well Hydraulics Lesson 8: Introduction to Water Wells 8.1 Introduction 8.2 Functions of Wells 8.3 Classification of Water Wells 8.4 Advantages and Disadvantages of Open Wells and Tubewells 8.5 Selection of Well Site and Type of Well Lesson 9: General Procedure for Analyzing Groundwater Flow Towards Wells 9.1 Introduction 9.2 Basic Assumptions for Analyzing Groundwater Flow to Wells 9.3 General Procedure 9.4 Illustrative Examples Lesson 10: Steady Groundwater Flow to Wells 10.1 Introduction 10.2 Steady Flow to Fully Penetrating Wells 10.3 Steady Flow to Partially Penetrating Wells 10.4 Steady Flow to Cavity Wells Lesson 11: Unsteady Groundwater Flow to Wells 11.1 Introduction 11.2 Solutions of Unsteady Flow to Wells in Confined Aquifers 11.3 Solution of Unsteady Flow to Wells in Leaky Confined Aquifers 11.4 Solution of Unsteady Flow to Wells in Unconfined Aquifers 11.5 Solution of Unsteady Flow to Cavity Wells Lesson 12: Determination of Aquifer Parameters 12.1 Introduction 12.2 Laboratory Methods 12.3 Field Methods Lesson 13: Overview of Field Pumping Test 13.1 Introduction

3 Purpose of Pumping Test 13.3 Types of Pumping Tests 13.4 Tests for Determining Hydraulic Parameters of Aquifers 13.5 Tests for Determining Well Hydraulic Characteristics 13.6 Design of Pumping Test 13.7 Response of Bounded Aquifers to Pumping 13.8 Advantages and Disadvantages of Pumping Tests Lesson 14: Analysis of Pumping Test Data 14.1 Introduction 14.2 Determination of Confined Aquifer Parameters 14.3 Determination of Unconfined Aquifer Parameters 14.4 Identification of Aquifer Boundaries Lesson 15: Well Interference and Multiple Well Systems 15.1 What is Well Interference? 15.2 Salient Applications of Well Interference 15.3 Analysis of Multiple Well Systems Module 3: Design, Installation and Maintenance of Water Wells Lesson 16: Design of Tubewells and Gravel Pack 16.1 Introduction 16.2 Well Diameter 16.3 Well Depth 16.4 Design of Well Screen 16.5 Design of Gravel Pack 16.6 Design of Tubewells: An Example Lesson 17: Methods for Constructing Shallow Wells 17.1 Introduction 17.2 Digging 17.3 Boring 17.4 Driving 17.5 Jetting Lesson 18: Methods for Constructing Deep Wells 18.1 Introduction 18.2 Percussion Drilling 18.3 Rotary Drilling 18.4 Rotary-Percussion Drilling Lesson 19: Well Completion, Development and Maintenance 19.1 Completion of Well Installation 19.2 Disinfection and Protection of Water Wells 19.3 Methods of Well Development

4 Well Maintenance and Rehabilitation Module 4: Groundwater Assessment and Management Lesson 20: Evaluation of Groundwater Potential and Quality 20.1 Estimation of Static and Dynamic Groundwater Potential 20.2 Water Quality and Groundwater Contamination 20.3 Collection of Water Samples 20.4 Analysis of Water Quality Lesson 21: Management of Groundwater 21.1 Introduction 21.2 Basic Concepts of Groundwater Management 21.3 Salient Techniques for Groundwater Management 21.4 Artificial Recharge of Groundwater Lesson 22: Introduction to Groundwater Modeling 22.1 Introduction 22.2 What is a Model? 22.3 Why Modeling? 22.4 Classification of Hydrologic/Hydrogeologic Models 22.5 Elements of Groundwater Modeling 22.6 Concluding Remarks Module 5: Principle, Design and Operation of Pumps Lesson 23: Introduction to Pumping System 23.1 Basic Mechanisms of Water Lifting 23.2 Types of Water Lifting Devices 23.3 Hydraulic Ram 23.4 Defining Pump 23.5 Classification of Pumps Lesson 24: Centrifugal Pumps 24.1 Operating Principle of Centrifugal Pumps 24.2 Components of a Centrifugal Pump 24.3 Types of Centrifugal Pumps Lesson 25: Pump Installation and Head Calculation 25.1 Installation of Centrifugal Pumps 25.2 Operation of Centrifugal Pumps 25.3 Limitation of Suction Lift 25.4 Calculation of Total Head 25.5 Calculation of Friction Head Losses

5 5 Lesson 26: Power Requirement and Efficiency of Centrifugal Pumps 26.1 Calculation of Power Requirement for a Pumping System 26.2 Efficiency of Centrifugal Pumps Lesson 27: Design of Centrifugal Pumps: An Overview 27.1 Design Criteria for Centrifugal Pumps 27.2 Design of Pump Impeller 27.3 Design of Suction and Delivery Pipes 27.4 Design of Pump Casing 27.5 Cavitation Problem 27.6 Net Positive Suction Head Module 6: Performance Characteristics, Selection and Maintenance of Pumps Lesson 28: Characteristic Curves of Centrifugal Pumps 28.1 Introduction 28.2 Defining Pump Characteristic Curves 28.3 Classification of Pump Characteristic Curves Lesson 29: Rotodynamic Pumps for Special Purposes 29.1 Propeller Pump 29.2 Mixed-Flow Pump 29.3 Submersible Pump 29.4 Vertical Turbine Pump 29.5 Jet Pump 29.6 Self-priming Devices for Rotodynamic Pumps Lesson 30: Affinity Laws 30.1 Introduction 30.2 Effect of Changes in Pump Speed on the Pump Performance 30.3 Effect of Changes in Impeller Diameter on the Pump Performance 30.4 Illustrative Example Lesson 31: Selection of Suitable Pumps 31.1 Introduction 31.2 System Head Curve 31.3 Determination of Design Discharge 31.4 Criteria for Pump Selection 31.5 Selection of Type of Pump Lesson 32: Maintenance and Troubleshooting of Centrifugal Pumps 32.1 Introduction 32.2 Preventive Maintenance of Centrifugal Pumps 32.3 Preventive Maintenance Techniques 32.4 Overhauling of Centrifugal Pumps 32.5 Centrifugal Pump Troubles and Remedies