Engineering Chemistry Lecture Notes Jntuk R16 Civil,Mechanical 1-1

by Rishi | Jun 4, 2019 | Jntuk lecture notes

Engineering Chemistry

Knowledge of basic ideas of Chemistry for Engineering students can facilitate them as skilled engineers later in style and material choice, moreover as utilizing the obtainable resources. Learning Objectives:

• Plastics square measure these days employed in menage appliances; conjointly they’re used as composites (FRP) in part and automotive industries.

• Fuels as a supply of energy square measure a basic want of any business, notably industries like thermal power stations, industry, plant food business etc., and thence they’re introduced.

• the fundamentals for the development of galvanic cells square measure introduced. conjointly if corrosion is to be controlled, one needs to perceive the mechanism of corrosion that itself is explained by chemistry theory.

• With the rise in demand, a good kind of materials square measure coming back up; a number of them have glorious engineering properties and a couple of of those materials square measure introduced.

• Water may be a basic material in the majority the industries, additional thus wherever steam is generated and conjointly wherever it’s provided for drinking functions.

• Materials employed in major industries like industry, metallurgic industries and construction industries and electrical instrumentality producing industries square measure introduced. conjointly lubrication is introduced.

UNIT I:

HIGH POLYMERS AND PLASTICS Polymerisation:- Introduction- Mechanism of polymerisation – Stereo regular polymers – ways of polymerisation (emulsion and suspension) -Physical and mechanical properties – Plastics as engineering materials : blessings and limitations – Thermoplastics and thermoset plastics – combining and fabrication (4/5 techniques)- Preparation, properties and applications of polyethene, PVC, Bakelite Teflon and polycarbonates Elastomers :- Natural rubber- combining and vulcanisation – artificial rubbers : Buna S, Buna N, Thiokol and polyurethanes – Applications of elastomers. Composite materials & Fiber strengthened plastics – perishable polymers – Conducting polymers.

UNIT II:

FUEL TECHNOLOGY Fuels – Introduction – Classification – hot worth – HCV and LCV – Dulong’s formula – calorimeter – Numerical issues – Coal –– Proximate and supreme analysis – Significance of the analyses – Liquid fuels – Petroleum- purification – Cracking – artificial hydrocarbon –Petrol sound – Diesel sound – hydrocarbon and Cetane ratings – Anti-knock agents – Power alcohol – Bio-diesel – volatilized fuels – gas, LPG and CNG – Combustion – Calculation of air for the combustion of a fuel – Flue gas analysis – Orsat equipment – Numerical issues on combustion.
I Year – I Semester
L T P C
4 0 0 3
ENGINEERING CHEMISTRY

Explosives:- Rocket fuels

UNIT III:

chemistry CELLS AND CORROSION Galvanic cells – Reversible and irreversible cells – Single conductor potential – Electro chemical series and uses of this series- customary electrodes (Hydrogen and mercurous chloride electrodes) – Concentration Cells – Batteries: Leclanche cell – Ni-Cd cells – Ni-Metal binary compound cells – Li cells – atomic number 30 – air cells. Corrosion :- Definition – Theories of Corrosion (chemical & electrochemical) – Formation of galvanic cells by totally different metals, by concentration cells, by differential aeration and water level corrosion – Passivity of metals – erosion corrosion – Galvanic series – Factors that influence the speed of corrosion – Protection from corrosion – style and material choice – electrode protection – protecting coatings: – Surface preparation – metallic (cathodic and anodic) coatings – ways of application on metals (Galvanizing, Tinning, Electroplating, Electroless plating).

UNIT IV:

CHEMISTRY OF ADVANCED MATERIALS Nano materials:- Introduction – Sol-gel methodology & chemical reduction methodology of preparation – Characterization by BET methodology and TEM ways – Carbon nano tubes and fullerenes: sorts, preparation, properties and applications Liquid crystals:- Introduction – sorts – Applications Super conductors:-Type –I, sort II – Characteristics and applications inexperienced synthesis:- Principles – 3or four ways of synthesis with examples – R4M4 principles

UNIT V:

WATER TECHNOLOGY onerous water:- Reasons for hardness – units of hardness – determination of hardness and pH scale – Water for steam generation – Boiler troubles – Priming and Foaming, Scale formation, Boiler corrosion, Caustic embrittlement – Internal treatments – Softening of water : Lime – Soda method, water softener method and numerical issues supported these methodes and activity process – Water for drinking purposes- Purification – Sterilization and medical care : Chlorination, Break purpose chlorination and alternative ways – Reverse diffusion and Electro qualitative analysis.

UNIT VI:

CHEMISTRY OF ENGINEERING MATERIALS AND FUEL CELLS Refractories: – Definition, characteristics, classification, properties, failure of refractories Lubricants: – Definition, function, Theory and mechanism of lubricants, properties (Definition and importance) Cement: – Constituents, producing, hardening and setting, deterioration of cement Insulators: – Thermal and electrical insulators Fuel cells: – chemical element gas fuel cells – wood spirit gas fuel cells

Outcome:

the benefits and limitations of plastic materials and their use in style would be understood. Fuels that square measure used unremarkably and their economic science, blessings and limitations square measure mentioned. Reasons for corrosion and a few ways of corrosion management would be understood. the scholars would be currently tuned in to materials like nano materials and fullerenes and their uses. equally liquid crystals and superconductors square measure understood. The importance of inexperienced synthesis is well understood and the way they’re totally different from standard ways is additionally explained. The impurities gift in raw water, issues related to them and the way to avoid them square measure understood. the benefits and limitations

of plastic materials and their use in style would be understood. The unremarkably used industrial materials square measure introduced.

Standard Books:

1. Engineering Chemistry by religious belief and Jain; Dhanpat Rai Publicating Co. 2. Engineering Chemistry by Shikha Agarwal; Cambridge University Press, 2015 edition.

Reference Books:

1.Engineering Chemistry of Wiley Asian country Pvt. Ltd., Vairam et al, 2014 edition (second). 2.Engineering Chemistry by Prasanth Rath, Cengage Learning, 2015 edition. 3.A text book of engineering Chemistry by S. S. Dara; S. Chand & Co Ltd., Latest Edition four. Applied Chemistry by H.D. Gesser, Springer Publishers five. Text book of Nano-science and engineering science by B.S. Murthy, P. sitar player and others, University Press, IIM

Elements of Mechanical Engineering Lecture Notes Jntuk R16 Civil 1-2

by Rishi | Jun 4, 2019 | Jntuk lecture notes

Elements of Mechanical Engineering

Learning Objectives:

The content of this course shall offer the scholar the essential ideas of varied mechanical systems and exposes the scholar to a good vary of kit and their utility in a very sensible state of affairs. It shall offer the elemental principles of materials, fuels, Steam, I.C. Engines, compressors, hydraulic machines and transmission systems that sometimes exist in any method plant.

UNIT –I:

Stresses and strains: varieties of – stress-strains, physical property and malleability, Hooks law, stress – strain diagrams, modules of physical property, Poisson’s quantitative relation, linear and meter strain, relation between E, N, and K, bars of uniform strength, compound bars and temperature stresses.

UNIT– II:

Types of supports – hundreds – Shear force and bending moment for cantilever and easily supported beams while not overhanging for all sorts of hundreds.
Theory of straightforward bending, straightforward bending formula, Distribution of Flexural and Shear stress in Beam section – Shear stress formula – Shear stress distribution for a few commonplace sections

UNIT-III:

Thin cylindrical shells: stress in cylindrical shells because of internal pressures, circumferential stress, longitudinal stress, style of skinny cylindrical shells, spherical shells, modification in dimension of the shell because of internal pressure, modification in volume of the shell because of internal pressure.
Thick Cylinders: Lame’s equation- cylinders subjected to within and out of doors pressures columns and Struts.

I Year – II Semester
L T P C
4 0 0 3

UNIT-IV:

Steam boilers and reciprocal air compressors: Classification of boilers, essentialities of boilers, choice of various varieties of boilers, study of boilers, boiler mountings and accessories.
Reciprocating air compressors: uses of compressed gas, work exhausted single stage and twostage compression, repose cooling and easy issues.

UNIT-V:

Internal combustion engines: classification of IC engines, basic engine elements and word, rule of engines, Four strokes and 2 stroke hydrocarbon and diesel engines, comparison of CI and SI engines, comparison of 4 stroke and 2 stroke engines, straightforward issues like indicated power, brake power, friction power, specific fuel consumption, brake thermal potency, indicated thermal potency and mechanical potency.

UNIT-VI:

Belts –Ropes and chain: belt and twine drives, rate quantitative relation, slip, length of belt , open belt and cross belt drives, quantitative relation of friction tensions, centrifugal tension in a very belt, power transmitted by belts and ropes, initial tensions within the belt, straightforward issues.
Gear trains: classification of gears, gear trains rate quantitative relation, simple, compound –reverted and planetary gear trains.
Outcomes: once finishing the course, the scholar shall be able to determine:
• The stress/strain of a mechanical element subjected to loading. • The performance of elements like Boiler, I.C. Engine, Compressor, Steam/Hydraulic rotary engine, Belt, Rope and kit. • the sort of mechanical element appropriate for the desired power transmission.

Text Books:

1. Strength of Materials and Mechanics of Structures, B.C.Punmia, commonplace Publications and distributions, nine th edition, 1991. 2. Thermal Engineering, Ballaney,P.L., Khanna Publishers, 2003. 3. components of technology, A.R.Asrani, S.M.Bhatt and P.K.Shah, B.S. Publs. 4. components of technology, M.L.Mathur, F.S.Metha&R.P.Tiwari religious belief Brothers Publs., 2009.

Reference Book:

Theory of Machines, S.S. Rattan, Tata handler Hil., 2004 & 2009.