**ME 3004 Computer Aided Drawing**

**3 hours/week Credits
: 1.50**

** **

Introduction to Computer aided drawing, AutoCAD screen, Screen parameters, AutoCAD co-ordinate system, drawing of elementary geometrical objects, AutoCAD environment, Osnap, grid, Snap etc.; Modifications of objects-Array, Image, Mirror, Offset, Trim, etc.; Polyline, Multiline, Block, Hatch, Text, Dimensions, Layers, Line type, Colour, changing object properties, 3D drawing, Rendering. Printing of rendered objects.

**ME 3502 Heat Transfer Sessional**

**3/2 hours/week
Credits : 0.75**

** **

Experiments
based on **ME-3501.**

**ME 3501 Heat Transfer**

**3 hours/week Credits:
3.00**

**Introduction: **Basic
modes and laws of heat transfer. Thermo-physical properties of substance.

**Conduction: **Law of conduction; Derivation of general three
dimensional conduction equation in Cartesian, Cylindrical & Spherical
co-ordinate systems; Steady state one-dimensional conduction of heat in
solids-plane wall; Cylinder; Sphere; Composite structures; Analogy between heat
flow and electrical flow; Factors influencing thermal conductivity; Effect of
variable thermal conductivity; Analysis of heat conduction of system with &
without heat sources. Fins of uniform cross-section; Two-dimensional steady
state conduction; Analytical and Numerical solutions. Unsteady state
conduction; Transient heat flow with negligible internal resistance and with
internal and surface resistance; Use of Heisler charts for plates, Cylinders
and spheres.

**Radiation:**Electromagnetic wave spectrum and thermal radiation; Laws of Radiation-Planck's law, Weins displacement law, Stefan-Boltzman law, Lamberts cosine law, Kirchoff's Law; Monochromatic emissive power, total emissive power, radiation intensity. Black body & Gray body radiation; Direct radiation & Diffuse radiation; Radiative properties of surfaces; Angle factor; Net radiation interchange between two radiating Infinite parallel planes; Concentric spheres and long cylinders; Simple enclosure problems; Temperature correction; Radiation shield; Gas radiation; Solar radiation and its prospects in Bangladesh.

**ME 3404 Machine
Design Sessional**

**3 hours/week
Credits : 1.50**

** **

Sessional based on ME-343.

**ME 3403 Machine
Design**

**4 hours/week
Credits : 4.00**

** **

**ME 3304 Production Process-II Sessional**

**3/2 hours/week
Credits : 0.75**

Experiments
based on **ME-3303.**

**ME 3303 Production
Process-II **

**3
hours/week Credits: 3.00**

** **

**Cutting Tool :**
Tool geometry and tool materials.

**Mechanics of Metal Cutting :** Elements of cutting conditions, mechanism of chip formation,
types of chips and effect of different factors on chip formation. Shear plane
and shear angle, cutting ratio, chip breakers, friction between cutting tool
and chips, built-up-edge.

**Cutting Force : **Cutting force analysis in orthogonal and oblique cutting, effect of
different factors on cutting force, cutting force and power estimation,
relations among speed, feed, depth of cut and power input.

**Heating Aspects : **Heating aspects of metal cutting, effects of different factors on
temperature of cutting fluid and its action.

**Tool Wear and Tool Life : **Mechanisms and geometry of tool wear, tool life, selection of
optimum tool geometry, economics of metal cutting.

**Metal Removing Processes:** Study and analysis of turning, shaping, planing, milling,
drilling, ultra finishing operations and
other hole making processes, broaching, grinding.

**Abrasive Machining operations:** ECM, EDM, Ultrasonic Machining, AJM, EBM, LBM &
other related non conventional machining processes.

**Automation & Robotics :** Introduction to N.C. Machine & Part-programming.
Introduction to robots & elementary robot programming.

**ME 3104 Fluid Mechanics and Machinery Sessional**

**3/2 hours/week
Credits : 0.75**

** **

Experiments
based on **ME-3103.**

**ME 3103 Fluid Mechanics & Machinery**

**3
hours/week Credits: 3.00**

** **

**External Flow:** Introduction to boundary layer
theory. Estimation of Boundary layer thickness. Skin frictions and drag of a
flat plate. Navier-stokes equation. Prandtl's assumption. Laminar Solution.
Blasius solution for flat plate.

**Fluid Machinery:** Types of Fluid machinery. Rotodynamic and positive
displacement machinery. Velocity diagram and Euler, pump Turbine equation.

**Water
Turbines:** Impulse and Reaction
turbines; Pelton wheel. Francis Turbine and Kaplan Turbine. Dimensional
analysis applied to Turbines. Specific speed. Unit power, Unit speed.
Performance Tests and Characteristic curves of turbines.

**Pumps:** Centrifugal and axial flow machines. Reciprocating
pumps. Specific speed. Performance Tests and Characteristic curves. Cavitations
and surging.

Fans, blowers and compressors.

**Wind turbines: ** Wind energy extraction: Horizontal and
Vertical axis generators. Application of
wind turbines to electrical power generation.

**Hydraulic transmission:** Fluid Coupling and Fluid Torque
converter.

**Introduction to fluidics:**Hydraulic and pneumatic components and systems; Servocontrol valves, actuators, fluid motors.

**Math 3303 Mathematics-VI**

**4 hours/week Credit:4**

** **

**Numerical Analysis**: Solution of algebraic equations; Graphical method,
Iterative Method, Newton’s method, Gauss
reduction formula, method of dominating diagonal, Interpolation: Forward and
backward difference table, Newton’s
formula for forward and backward interpolation. Divided difference, Lagrange’s
interpolation formula. Curve fitting: Method of least square, numerical
differentiation: Use of Newton’s
interpolation formula, Douglas-Avakian method, Graphical differentiation
maxima-minima, Raphson’s methods. Numerical integration: Trapezoidal rule,
Simpson’s rule, Weddle’s rule, use of Lagrange’s interpolation formula,
graphical integration, Solution of differential equations; Adam’s method for
first order equation, Picard’s method, Runge-Kutta’s method, Finite difference
method.

**Statistics**: Frequency distribution, Measure of central tendency,
Measures of dispersion; Moment, Skewness, Curtosis, Elementary probability
theory and discontinuous and continuous probability distribution i.e. Binomial,
normal and exponential, Elementary sampling theory, Estimation, Hypothesis
testing and regression analysis.