JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Computer Simulation and Thermodynamics of Combustion: Introduction, Heat of reaction, complete combustion in C/H/O/N Systems, Constant volume adiabatic combustion, constant pressure adiabatic combustion. Calculation of adiabatic flame temperature.

UNIT - II

SI Engine Simulation With Fuel-Air as Working Medium: Deviation between actual and air standard cycles of operation- problems, SI engine simulation with adiabatic constant volume combustion with fuel and air being considered, calculation of temperature drop due to fuel vaporization, calculation of mean effective pressure, torque and thermal efficiency at full throttle, part throttle and supercharged conditions.

UNIT - III

Actual Cycle Simulation in SI Engines: Progressive combustion; gas exchange process, heat transfer process, friction. Procedure of validating computer code with experimental data based on performance parameters and pressure crank angle diagram.

UNIT - IV

Simulation of 2-Stroke SI Engine: Simulation of the process, determination of the pressure-crank angle variation, computation of performance parameters.

UNIT - V

Diesel Engine Simulation: Main difference between SI and CI engine simulation, differences between ideal and actual cycles, mathematical combustion model for diesel engine, heat transfer and gas exchange processes.

REFERENCE BOOKS:

• 1. Ganesan, V. - Computer Simulation of Spark Ignition Engine Process, Universities Press (I) Ltd, Hyderabad - 1996.
• 2. Ganesan. V, Computer Simulation of Compression Ignition Engine Process, Universities Press (I) Ltd, Hyderabad-2000.
• 3. Ashley Campbel , Thermodynamic Analysis of Combustion Engine - John Wiley and Sons, New York - 1986.
• 4. Benson. R.S., Whitehouse. N.D., - Internal Combustion Engines- Pergamon Press, oxford - 1979.
• 5. Ramoss. A.L., Modelling of Internal Combusion Engines Processes- McGraw-Hill Publishing Co., -1992. M. Tech – I Year – II Sem. (Thermal Engineering) COMPUTATIONAL METHODS LAB Solving Thermal Engineering problems using available packages such as T K Solver, ANSYS, CFX, STARCD, MATLAB, FLUENT etc…some of the problems are as follows:
• 1. Simulation of Plane Poiseuille Flow between Two Long Parallel and Stationary Plates
• 2. Simulation of Couette Flow when the Upper Plate is moving with a velocity
• 3. Simulation of a Channel Flow( Tube flow) subjected to a Constant wall Temperature/ constant Wall Heat Flux
• 4. Simulation of Flow Inside a Square Enclosure subjected to Different Temperatures under : a) Natural Convection and b) Natural Convection and Radiation
• 5. Transient Simulation of Compressible Flow of Air through 2D Convergent Nozzle
• 6. Simulation of Flow over a Circular Cylinder of size 5cm for different Reynold’s number values of Air
• 7. Simulation of Temperature Contours for a Square Plate of size 0.2m and subjected to different types of Boundary Conditions
• 8. Simulation of Temperature Contours for a Pin Fin subjected to Natural and Forced Convection conditions