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Indian Institute of Technology Guwahati

Basic Principles and Calculations in Chemical Engineering

Indian Institute of Technology Guwahati and NPTEL via Swayam

Overview

The objective of the course is to introduce chemical engineering students to the basic principles and calculation techniques used in the chemical industries and to acquaint them with the fundamentals of the material and energy balances as applied to chemical engineering processes. The course is mainly intended for graduate chemical engineering student. It will expose them to solve the problems in material and energy balances that arise in relation to the problems involving in different chemical process units. It also will introduce them to numerical methods used to solve the problems. The course will introduce in simple language and ample of examples so that it will encourage learners to get used to the course.


INTENDED AUDIENCE: Chemical, Biochemical engineering Garduate Student/ Graduate Sudent of chemical science and Technology/Diploma in chemical Engineering/Graduate in petroleum science and technologyPREREQUISITES : 10 + 2 Examination in ScienceINDUSTRY SUPPORT : Industrial research and Developement section of Chemical and Biochemical Engineering

Syllabus

COURSE LAYOUT

Week 1: Introduction Contents: Definition, history and role of chemical engineers: Definition of chemical engineering, role of chemical engineers in society Basic features of chemical process: Classifications and modes of chemical processes; basic features of chemical process and unit operation Unit systems and dimensions: Dimensional homogeneity and its analysis, Analysis of problem with solution

Week 2: Process Variables and Rate Contents: Variables and properties of material in systems: Physical and transport properties of materials and mixtures, Analysis of problem with solution Pressure and temperature of flow process: Pressure and temperature and their measurements in flow process, problem solving Rate of chemical processes: Flow rate and its measurements, Flow rate and its measurements, Rate of momentum transfer, Rate of heat transfer, Rate of mass transfer, Analysis of problem with solution Solving problems3 Week 3: Fundamentals of Material Balance Contents: Principles of material balance and its calculation: basis of engineering calculations, the general material balance equation, Balances on single and multiple unit processes without reaction, Solving problems Material balances on non-reactive processes: Material balances on non-reactive processes with recycle and bypass, Solving problems Material balances on reactive processes: Material balances on reactive processes, Solving problems Material balances on combustion processes: Material balances based on combustion reactions, Solving problems Week 4: Basic Principles of Compressible System Contents: State equation of ideal gas and calculation: Basic equations of state for ideal gas and their calculations; State equation of non-ideal gas and calculation: Basic equations of state for non-ideal gas and their calculations Week 5: Basic Principles of Multiphase System Contents Phase equilibrium and Vapour Pressure: Phase equilibrium, Gibb’s phase law, Clausius-Clapeyron Equation, Antoine’s Equation, Cox Chart Equilibrium laws: Raoul’s Law, Henry’s law, volatility, their calculations with examples Saturation and Humidity: Principles of saturation, humidity, Psychometric chart and its use, problem solving Process of phase change: Condensation, vaporization, Examples Week 6: Energy and Its Forms Contents: Principles of Energy: concepts and units, Different forms of energy and their calculations, The general energy balance equation Laws and Properties of thermodynamics: Laws of thermodynamics, definitions of thermodynamic properties like Heat capacity, enthalpy, entropy; Calculation of enthalpy changes (without change of phase), enthalpy changes for phase transitions Heat of formation, reaction and solution: Definition and calculations Week 7: Energy Balances on Non-reactive Processes Contents: The mechanical energy balance: basic understanding with example Enthalpy balances without reaction: basic understanding with example Energy balances on non-reactive processes of multiple inlet and outlet streams: basic understanding with example Enthalpy balances for heat of solution: Analysis with example Week 8: Energy Balances on Reactive Systems Contents: Energy balance with standard heat of reaction: basic understanding with example Energy balance with heat of reaction: basic understanding with example Energy balances on heat of combustion: basic understanding with example Week 9: Balances on Unsteady State Processes Contents: Material balances of unsteady state process: basic understanding with example Unsteady state energy balance: basic understanding with example; Example of simultaneous material and energy balance Week 10: Computational Techniques Contents: The methods of least squares: Linear equation fitting with experimental data with example Non-linear algebraic equation system: basic understanding with example Numerical Integration: basic understanding with example Week 11: Computer-aided Balance Calculations Contents: Degree of freedom analysis: basic understanding with example Process flow sheeting and codes: basic understanding Week 12: Case Studies on Chemical Process Contents: Case study-I on chemical process: Analysis with example Case study-II on chemical process: Analysis with example 3

Taught by

Prof. Subrata Kumar Majumdar

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