MAS108 Hydraulics, Hydraulic Machinery and Pumps

Contents and structure

Hydraulics is the section of fluid mechanics which describes production, transmission and conversion of energy during mutual interaction of fluids and mechanisms in motion. This course starts from the deep fundamentals of fluid dynamics accompanied at later stages by an overall description of technical solutions used in machinery. The main objective of the course is to learn basic principles of fluid power generation, transmission and conversion with the use of hydraulic machines and supplementary passive equipment.

 

Content

• Introduction, nomenclature and main principles
• Selected chapters of fluid dynamics: flow regimes, velocity profiles, pressure drop, Bernoulli equation
• Hydraulic fluids: types, properties and selection
• Basic theory of hydraulic machines: forces and torques, displacement, mass and momentum loss
• Positive displacement pumps and motors: types, design, operation and efficiency
• Rotodynamic machines: types, design, Euler equation and efficiency
• Cavitation: fundamentals, NPSH (net positive suction head)
• Passive hydraulic equipment: valves, filters and tanks
• Hydraulic accumulators: fundamentals, types, selection
• Hydraulic schemes: standardized symbolics and machine logics
• Thermal comfort of hydraulic loops
• Mechanical analysis of selected components
• Overview over numerical tools in hydraulics

Learning Outcome

At the completion of the course, students should be able to accumulate following

Knowledge:

• basic aspects of the power conversion in hydraulic machines
• key components of a hydraulic scheme
• details of a hydraulic system operation

Skills:

• selection of main components of a hydraulic rig
• quantitative estimation of the main operating parameters (forces, torques, flow rates, efficiencies)
• calculation of mass and momentum loss in hydraulic machines
• practical competence in the use of hydraulic equipment

General competence:

• Writing of technical reports, group work, statistical analysis, analysis of measurement errors.

Entry requirements

None

Recommended previous knowledge

Mathematics 1, Mathematics 2. 

Teaching methods

Lectures, video demonstrations, tutorials, laboratory works and case studies.

Compulsory learning activities

5 of 6 written assignments must be delivered within the deadline and approved for a student to be admitted to the examination. Approved assignments are valid in the examination semester and 2 following semesters.

Assessment

Written examination, 4 hours.

Time and place for the examination will be announced at Studentweb.

Grading scale is A-F where F is fail.

Examination support material

One simple standard HVL approved calculator

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