IIT Kharagpur Tube wells and Pumps syllabus


IIT Kharagpur crop production technology syllabus


Tube wells and Pumps

3 – 0 – 0 : 3 Credits Prerequsites: NoneIntroduction to Groundwater: Definition of groundwater, occurrence of

groundwater, physical properties, porosity and permeability, capillarity and

capillary fringe, Darcy’s law, Dupuit-Forchheimer assumptions, aquifers and

aquitards, groundwater development and potential in India, status of

groundwater resources in India, case histories.

Well Hydraulics: Basic assumptions, steady and transient flows, confined,

unconfined and leaky aquifers, partially penetrating wells, well interference,

well losses, specific capacity.

Pumping Tests: Need of pumping tests, types, design and test procedures,

merits and demerits of pumping test, salient steady and transient methods

for determining aquifer parameters, recovery test, determination of well-loss

coefficients and well efficiency.

Construction of Wells: Types of wells, test drilling and well logs, well design,

methods for constructing shallow wells, drilling techniques for deep wells,

cavity wells, bamboo tubewells, well casings and screens, perforations and

gravel packs, well cementing, well development, stimulation and sterilization

of wells, testing wells for yield, protection of wells.

Maintenance and Rehabilitation of Wells: Incrustation, corrosion, evaluation

of well performance, abandoned wells.

Pumps: Classification of water-lifting devices, principles and operation of

important indigenous water-lifting devices, positive displacement pumps,

centrifugal pumps, vertical turbine pumps, submersible pumps, propeller and

mixed flow pumps, affinity laws, jet pumps, air-lift pumps, pump selection,

troubles of pumps and remedial measures, evaluation of pump performance,

power requirements, efficiency and economics of pumping plants.

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