Introduction to Irrigation-WRE-B.Tech.pptx

This presentation is about the Introduction to Irrigation. It is a part of curriculum of Water Resource Engineering and it is for Civil Engineering Students.

1. Water Resources Engineering – II (CE 604) Asst. Prof. Ujjwal Saha Department of Civil Engineering IIEST , Shibpur

2. Objective of this Course To introduce the students the basic concepts of water requirements of crops and irrigation water requirement and basic ideas of irrigation and drainage systems design, planning and management. After completion of this course one should be able to design an irrigation project which includes water requirements, canal design and hydraulic structures for irrigation project.

3. Syllabus Irrigation: Necessity, Types, Techniques, Quality of Irrigation water, Soil-water-plant relationship, Water requirement of crops, Base period, Duty, Delta, Commanded area, Intensity of irrigation, Consumptive use of water, Other terms related to water requirement of crops, Irrigation efficiencies, Frequency of irrigation. Water Storage: Flow mass curve, estimation of storage required for irrigation and other demands.

4. Canal irrigation : Classification of canals, canals in alluvium, design of unlined canals: Kennedy's method, Lacey's method, lined canals: advantages, materials used, typical sections, design of lined canals, and economics of canal lining. Land drainage: Design and maintenance of open drains, closed drains, discharge and spacing of closed drains.

5. Diversion headwork : Necessity and uses, different types, Layout and different components, weirs on permeable foundation, Creep theories, Khosla's method, different types of modules, canal escapes, Silt control devices. Canal structures : Head- regulators, Cross-regulators, falls.

6. Reference Books Irrigation Engineering and Hydraulic Structure by S. K. Garg Irrigation Water Resources and Water Power Engineering by P. N. Modi Irrigation Engineering by N . N. Basak Irrigation and Water Power Engineering by B. C. Punmia Irrigation and Water Resources Engineering by G. L. Asawa

7. Assessment Internal Assessment: 30 Class Attendance: 15 Mid Semester : 15 End Semester: 70

8. Class Timings Tuesday : 8 AM to 8.55 AM : N212 Wednesday: 10.45 AM to 11.40 AM: N212 Thursday: 8 AM to 8.55 AM : N212

9. Important Dates No Class between January 19 to January 21 as the instructor will be on leave for these three days. Mid- Semester Examinations: 22 to 29 February 2016 End- Semester Examinations 22 to 29 April 2016

10. Irrigation What? artificial application of water Where to apply? to the root zone of the crop When to apply? at right time How much to apply? in required quantity What for? for optimum crop yield

11. IRRIGATION ENGINEERING IT IS A SCIENCE DEALING WITH PLANNING , DESIGNING, CONSTRUCTION, OPERATION AND MAINTENANCE OF IRRIGATION WORKS.