### HYDRAULICS & PNEUMATICS | Board of Technical Examinations | DIPLOMA

 Course Title: HYDRAULICS & PNEUMATICS Scheme (L:T:P) : 4:0:0 Total Contact Hours: 52 Course Code: 15ME41T Type of Course: Lectures, Self Study & Quiz Credit :04 Core/ Elective: Core CIE- 25 Marks                                                                                                        SEE- 100 Marks

Prerequisites: Knowledge of basic mathematics and Science.

Course Objectives:

1.     To gain knowledge on the fundamental aspects of fluid flow physics and properties of fluid flow and selection of hydraulic machinery for relevant applications.

2.     To learn various flow measurement techniques.

## Course Outcomes:

On successful completion of the course, the students will be able to:

 Course Outcome CL Linked PO Teaching Hrs CO1 Understand fluid dynamics R/U/A 1,2,3,10 07 CO2 Analyze the application of mass, momentum and energy equation in fluid flow. R/U/A 1,2,3,10 09 CO3 Calculate and compare flow rates, pressure changes, minor and major head losses for viscous flows through pipes R/U/A 1,2,3,6, 10 06 CO4 Evaluate the performance of Hydraulic turbines and operation and performance of centrifugal and reciprocating pumps U/A 1,2,3,4,6, 10 10 CO5 Apply knowledge and Select, operate and maintain various hydraulic elements for a particular low cost automation application in sustainable manufacturing system and its impact on society R/U/A 1,2,3,4,6, 10 10 CO6 Apply knowledge and Select, operate and maintain various pneumatic elements for a particular low cost automation application in sustainable manufacturing system and its impact on society. R/U/A 1,2,3,4,10 10 Total sessions 52

COURSE CONTENT AND BLUE PRINT OF MARKS FOR SEE

 Unit No Unit Name Hour Questions to be set for SEE/MARKS Marks weightage weightage (%) R U A 1 INTRODUCTION TO HYDRAULICS 07 5 10 5 20 14 2 DYNAMICS OF FLUIDS 09 5 5 15 25 17 3 FLOW THROUGH PIPES 06 5 5 5 15 12 4 HYDRAULIC MACHINES 10 -- 10 20 30 19 5 HYDRAULIC SYSTEMS 10 5 10 15 30 19 6 PNEUMATIC SYSTEMS 10 5 10 10 25 19 Total 52 25 50 70 145 100

R-Remember; U-Understanding; A-Application

COURSE-PO ATTAINMENT MATRIX

COURSE CONTENTS

Fluid- Concept and classification of fluid-Newton’s law viscosity-Properties of fluid- Density, Specific gravity, Specific Weight, Specific Volume- Dynamic Viscosity, Kinematic Viscosity, Surface tension, Capillarity, Vapour Pressure, Compressibility-Fluid pressure, Pressure head, Pressure intensity-Concept of absolute vacuum, gauge pressure, atmospheric Pressure-pressure,- Simple and differential manometers, Bourdon pressure gauge.

Fluid flow-Types of fluid flows-Continuity equation-Bernoulli’s theorem-Venturi meter– Construction, principle of working, Coefficient of discharge, Discharge through venture meter.- Orifice meter-Pitot tube – Construction, Principle of working,- hydraulic coefficients

-Numerical on Bernoulli’s theorem, venturi meter, orifice meter.

Concepts of fluid friction- Loss of head due to friction- Minor losses in pipes -Darcy’s equation and Chezy’s equation for frictional losses.- -Hydraulic gradient and total gradient line.- Hydraulic power transmission through pipe- Numerical to estimate Loss of head due to friction and major and minor losses- Power transmission. Concept of water hammer in pipes.

Hydraulic turbines- Classification of turbine -Construction and working principle of Pelton wheel, Francis and Kaplan turbine.-Use of Penstock, Anchor Block, Surge tank and Draft tube. Concept of cavitations in turbines- Simple Numerical on Calculation of Discharge, Work done, Power, efficiency of turbine(Exclude Francis turbine)

Pumps- classification of pumps – construction and working of Centrifugal pump- Need for priming of centrifugal pump–multistage centrifugal pump. Reciprocating pump-types- construction and working- Air Vessel-Slip-Simple Numerical on Calculation of discharge, Work done, Power, efficiency of pumps-construction and working Submersible pump

Hydraulic systems- layout of oil hydraulic systems-. Advantages of hydraulic systems- Components of Hydraulic systems- Pumps– Vane pump, gear pump, screw pump,-Valves – working and symbols of Pressure control valves – pressure relief valve, Direction control valves - 3/2, 5/2 valves,-Sequence valves.-Flow control valves–Actuators- Linear Actuators – Cylinders - single acting, double acting - Hydraulic motors-Accumulators-Types.

Pneumatic system- General layout of pneumatic system-Advantages of pneumatic systems- Components of pneumatic system- Compressor – Reciprocating.-construction and working of FRL unit- working and symbols of-Control Valves – Pressure regulating valves, Flow Control valves, Direction Control Valves.-Actuators - Cylinders- single acting and double acting - Air motors,- piston motor-unit- - Pneumatic Symbols- ports and positions

®TEXT BOOKS

1.     Bansal.   R.K.,“Fluid   Mechanics   and Hydraulics                    Machines”,           9th Edition, LaxmiPublicationsPrivate Limited, New Delhi. 2011.

2.    R.S.Khurmi, “Fluid Mechanics and Machinery”,S.Chand and Company, 2nd Edition, 2007.

3.     Hydraulics & Pneumatics – Andrew Parr, Jaico Publishing House New Delhi.

4.     Hydraulic and Pneumatic Controls Understanding Made Easy- K.S.Sundaram,- S.chand Company Delhi

REFERENCES

1.      Ramamritham.   S,    Fluid       Mechanics,         Hydraulics   and                Fluid Machines”, DhanpatRai&Sons,Delhi, 2004.

2.   Kumar. K.L., “Engineering Fluid Mechanics”, 7th Edition, Eurasia Publishing House PrivateLimited, New Delhi, 1995.

3.  P. N Modi and S. M. Seth, “Hydraulics and Fluid Mechanics Including Hydraulics Machines”, 19th Edition, Standard Book House, 2013

4 Bansal R. K, “Strength of Materials”,Laxmi Publications, New Delhi, 2012.

5.     Oil Hydraulic Systems- Majumdar, S.R. -Tata McGraw-Hill Publication, 3/e, 2013

6.     Hydraulic and Pneumatic Controls- Srinivasan, R.- Vijay Nicole Imprints Private Limited, 2/e, 2008

7.     Pneumatic And Pneumatics Controls -Understanding Made Easy - K.S.Sundaram,-S.chand Company Delhi

8.     Pneumatic Systems - Majumdar, S.R. -Tata McGraw-Hill Publication, 3/e, 2013

LIST OF SOFTWARES/ LEARNING WEBSITES:

3.     www.howstuffworks.com

4.     . http://nptel.iitm.ac.in/courses/Webcourse-contents/IIT- KANPUR/machine/ui/TOC.htm

12.  www.boschrexroth.co.in

13.  http://www.automationstudio.com/

14.  http://www.howstuffworks.com/search.php?terms=hydraulics

15.  http://hyperphysics.phy-astr.gsu.edu/hbase/fluid.html#flucon

20.  www.festo.com

21.  www.boschrexroth.co.in

22.  www.nptel.iitm.ac.in

23.  http://www.howstuffworks.com/search.php?terms=pneumatics

Course Delivery:

Ã¥         The course will be delivered through lectures and Power point presentations/ Video

Ã¥         Teachers can prepare or download ppt of different topic’s Hydraulic power engineering application, can prepare alternative slides.

Working principle of hydraulic pumps/Hydraulic devices

Working principle of hydraulic valves and actuators/ Pneumatic valves and actuators

SUGGESTED LIST OF STUDENT ACTIVITYS

Note: the following activities or similar activities for assessing CIE (IA) for 5 marks (Any one)

Ã¥         Each student should do any one of the following type activity or similar activity related to the course and before take up, get it approved from concerned Teacher and HOD.

Ã¥         Each student should conduct different activity and no repeating should occur

 1 Each student will give an activity to prepare a tabulated summary for types of fluid which is available around city (Summary includes properties of fluid indicated in chapter-1) 2 List out any five pressure measuring devices available in market with its specifications and current market price. 3 Each student will give an activity to prepare a tabulated summary for types of pipes available in market. (Summary includes type, specification, size range, material, rate and applications). 4 Identify any one hydraulic pump and one prime mover available in market in a group of five students with detail specifications and current price. 5 Visit a nearby related Earth moving equipments service centre and prepare a summary of hydro-pneumatic devices used along with their specifications 6 Motivate student to take case study on Low Cost Automation to inculcate self and continuous learning

Ã¥    MODEL OF RUBRICS /CRITERIA FOR ASSESSING STUDENT ACTIVITY

 RUBRICS FOR ACTIVITY( 5 Marks) Dimension Unsatisfactory Developing Satisfactory Good Exemplary Student Score 1 2 3 4 5 Collection of data Does not collect any information relating to the topic Collects very limited information; some relate to the topic Collect much information; but very limited relate to the topic Collects some basic information; most refer to the topic Collects a great deal of information; all refer to the topic Ex: 4

 Fulfil team’s roles & duties Does not perform any duties assigned to the team role Performs very little duties but unreliable. Performs very little duties Performs nearly all duties Performs all duties of assigned team roles 5 Shares work equally Always relies on others to do the work Rarely does the assigned work; often needs reminding Usually does the assigned work; rarely needs reminding Normally does the assigned work Always does the assigned work without having to be reminded. 3 Listen to other Team mates Is always talking; never allows anyone else to speak Usually does most of the talking; rarely allows others to speak Talks good; but never show interest in listening others Listens, but sometimes talk too much Listens and speaks a fair amount 2 Average / Total marks=(4+5+3+2)/4=14/4=3.5=4

Note: This is only an example. Appropriate rubrics/criteria may be devised by the concerned faculty (Course Coordinator) for assessing the given activity.

Course Assessment and Evaluation Scheme:

 What To who m When/Where (Frequency in the course) Max Marks Evidence collected Course outcomes Direct Assessment CIE IA Students Three IA tests(Average of three tests will be computed) 20 Blue books 1,2,3,4,5,6 Student Activities 05 Activity sheets SEE End Exam End of the course 100 Answer scripts at BTE 1,2,3,4,5,6 Indirect Assessment Student Feedback on course Students Middle of the course Feedback forms 1 & 2,3 Delivery of course End of Course Survey End of the course Questionnaires 1,2,3,4,5,6 Effectiveness of Delivery of instructions & Assessment Methods

Note: I.A. test shall be conducted for 20 marks. Average marks of three tests shall be rounded off to the next higher digit.

Questions for CIE and SEE will be designed to evaluate the various educational components (Bloom’s taxonomy) such as:

 Sl. No Bloom’s Category % Weightage 1 Understanding 45 2 Applying the knowledge acquired from 25 3 Analysis 20 4 Evaluation& Creating new knowledge 10

Note to IA verifier: The following documents to be verified by CIE verifier at the end of semester

1.     Blue books ( 20 marks)

2.     Student suggested activities report for 5 marks

3.

 FORMAT OF I A TEST QUESTION PAPER (CIE)

Student feedback on course regarding Effectiveness of Delivery of instructions & Assessment Method