18CH32 Chemical Process Calculations syllabus for CH

UNITS AND DIMENSIONS:

Fundamental and derived units, Conversion, Dimensional consistency of equations, Dimensionless groups and constants, conversions of equations.

BASIC CHEMICAL CALCULATIONS:

Concept of mole, mole fraction, Compositions of mixtures of solids, liquids and gases, Concept of Normality, Molarity, Molality, ppm, Ideal gas law calculations.

MATERIAL BALANCE WITHOUT REACTION:

General material balance equation for steady and unsteady state, Typical steady state material balances in distillation, absorption, extraction.

MATERIAL BALANCE WITHOUT REACTION:

Drying, mixing and evaporation, Elementary treatment of material balances involving bypass, recycle and purging.

STEADY STATE MATERIAL BALANCE WITH REACTION:

Principles of Stoichiometry, Concept of limiting, excess reactants and inerts, fractional and percentage conversion, fractional yield and percentage yield, selectivity, related problems, Ultimate and proximate analysis of fuels, Calculations involving burning of solid, liquid and gaseous fuels, excess air, air-fuel ratio calculations.

ENERGY BALANCE:

General steady state energy balance equation, Thermo physics, Thermo chemistry and laws, Heat capacity, Enthalpy, Heat of formation, Heat of reaction, Heat of combustion and Calorific values. Heat of solution, Heat of mixing, Heat of crystallization, determination of
HR at standard and elevated temperatures, Theoretical flame temperature and adiabatic flame temperature.

Course Outcomes:

On completion of this course the student will have

• Comprehend the basic theories in stoichiometry and perform unit conversions and calculations.
• Discuss material balance of steady state processes like distillation, absorption, extraction and crystallization.
• Solve material balance problems like drying, mixing, evaporation, bypass, recycle and humidification.
• Discuss concepts of material balance problems with chemical reactions. Combustions and air fuel calculations.
• Explain the concepts of thermo physics and thermo chemistry and solve steady state enthalpy balance problems.
• Develop mathematical solutions for mass and energy balance for any processes.

QUESTION PAPER PATTERN:

• The question paper will have ten questions.
• Each full Question consisting of 20 marks
• There will be 2 full questions (with a maximum of four sub questions) from each module.
• Each full question will have sub questions covering all the topics under a module.
• The students will have to answer 5 full questions, selecting one full question from each module.

Note: Question Paper to contain at least 30% Theory

TEXT BOOKS:

1. Bhatt B.I. and Vora S.M., “Stoichiometry (SI Units)”, 3rd edn, 1996, Tata McGraw Hill Publishing Ltd., New Delhi, 1996

2. Hougen O.A., Watson K.M. and Ragatz R.A., “Chemical Process Principles-Part I”

3. “Material and Energy balances”, 2nd Edn, CBS publishers and distributors, New Delhi, 1995

REFERENCE BOOK:

1. Himmelblau D.M., “Basic principle and Calculations in Chemical Engineering”, 6thedn, Prentice Hall of India, New Delhi,1997.