LEB5010 - Pressurized Irrigation 2: Advanced Topics

Credit hours

Instructor
Jose Antonio Frizzone
Rubens Duarte Coelho

Objective
Provide the graduate student in Agricultural Systems Engineering at ESALQ/USP with state-of-the-art
knowledge of the hydraulics of pressurized irrigation systems (drip, micro-sprinkler, stationary sprinkler
systems and mechanized systems - center pivot and move linear) , in order to understand the hydraulic
fundamentals of the project and its limitations, developing a critical view that induces the formulation of
hypotheses aiming at applications in research and innovation in the area of pressurized irrigation; (b)
guide the student towards the rational use of water and energy resources within a social context; (c)
development and environmental impacts of irrigation in Brazil and in other countries of the world.

Content
1. Current situation of pressurized irrigation (micro-irrigation and sprinkler) in Brazil and in the World: irrigated area, availability of water resources and energy, the state of the art of the pressurized irrigation equipment industry.
2. Micro-irrigation systems (surface and underground drip; micro-sprinkler): (a) New components on the market; (b) Types of emiters used; (c) Quality testing of emitters – manufacturing variation and flow-pressure performance curves; (d) Fundamentals for designing operating units; (e) Selection of emitters and their spacing; (f) Hydraulic design criteria; (g) Hydraulic dimensioning of micro-irrigation systems: designing of lateral lines (hydraulic and statistical methods); hydraulic and economic design of manifold lines, secondary lines and main line; designing of the filtration system; dimensioning of motor pumps and pipelines; (h) Performance of micro-irrigation systems; (i) Obstruction of emitters: causes, control and monitoring.
3. Sprinkler irrigation systems: (a) Stationary sprinkler systems; hydraulics and dimensioning; uniformity of water distribution aiming at the efficient management of irrigation; (b) Mechanized sprinkler systems; (c) Center pivot and linera move : system components; laboratory tests of the pressure regulator-emitter set; design of systems capacity; lateral line hydraulics; hydraulic design of the system; pumping system; irrigation performance by center pivot and linear move systems; (d) Economical selection of pressurized sprinkler systems.

Bibliography
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