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ENGINEERING CHEMISTRY

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EC Unit 1 Water And Its Treatment

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EC Unit 2 Battery Chemistry & Corrosion

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EC Unit 3 Polymeric Materials

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EC Unit 4 Energy Sources

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EC Unit 5 Engineering Materials

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Syllabus Overview

UNIT - 1: Water and its treatment

Introduction to hardness of water

  • Estimation of hardness of water by complexometric method and related numerical problems

Potable water and its specifications

  • Steps involved in the treatment of potable water
  • Disinfection of potable water by chlorination and break-point chlorination
  • Defluoridation - Determination of F- ion by ion-selective electrode method

Boiler troubles

  • Sludges, Scales and Caustic embrittlement
  • Internal treatment of Boiler feed water - Calgon conditioning, Phosphate conditioning, Colloidal conditioning
  • External treatment methods - Softening of water by ion-exchange processes
  • Desalination of water – Reverse osmosis

UNIT – 2 Battery Chemistry & Corrosion

Introduction to Batteries

  • Classification of batteries: primary, secondary and reserve batteries with examples
  • Basic requirements for commercial batteries
  • Construction, working and applications of: Zn-air and Lithium ion battery
  • Applications of Li-ion battery to electrical vehicles
  • Fuel Cells - Differences between battery and a fuel cell
  • Construction and applications of Methanol Oxygen fuel cell and Solid oxide fuel cell
  • Solar cells - Introduction and applications of Solar cells

Corrosion

  • Causes and effects of corrosion
  • Theories of chemical and electrochemical corrosion
  • Mechanism of electrochemical corrosion
  • Types of corrosion: Galvanic, water-line and pitting corrosion
  • Factors affecting rate of corrosion
  • Corrosion control methods - Cathodic protection: Sacrificial anode and impressed current methods

UNIT - 3: Polymeric materials

Definition and Classification of polymers

  • Types of polymerization: addition (free radical addition) and condensation polymerization with examples
  • Nylon 6:6, Terylene
  • Plastics: Definition and characteristics, thermoplastic and thermosetting plastics
  • Preparation, Properties and engineering applications of PVC and Bakelite, Teflon, Fiber reinforced plastics (FRP)
  • Rubbers: Natural rubber and its vulcanization
  • Elastomers: Characteristics, preparation, properties and applications of Buna-S, Butyl and Thiokol rubber
  • Conducting polymers: Characteristics and Classification with examples
  • Biodegradable polymers: Concept and advantages - Polylactic acid and poly vinyl alcohol and their applications

UNIT - 4: Energy Sources

Introduction and Classification of energy sources

  • Calorific value of fuel – HCV, LCV- Dulongs formula
  • Solid fuels: coal – analysis of coal – proximate and ultimate analysis and their significance
  • Liquid fuels – petroleum and its refining, cracking types – moving bed catalytic cracking
  • Knocking – octane and cetane rating, synthetic petrol - Fischer-Tropsch’s process
  • Gaseous fuels – composition and uses of natural gas, LPG and CNG
  • Biodiesel – Transesterification, advantages

UNIT - 5: Engineering Materials

Cement and Smart materials

  • Portland cement, its composition, setting and hardening
  • Smart materials and their engineering applications: Shape memory materials - Poly L- Lactic acid, Thermoresponse materials - Polyacryl amides, Poly vinyl amides

Lubricants

  • Classification of lubricants with examples
  • Characteristics of a good lubricants
  • Mechanism of lubrication (thick film, thin film and extreme pressure)
  • Properties of lubricants: viscosity, cloud point, pour point, flash point and fire point
ENGINEERING CHEMISTRY Notes