MT8401 Thermodynamics and Heat Transfer Notes

MT8401 Thermodynamics and Heat Transfer Notes
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UNIT I FIRST LAW OF THERMODYNAMICS

Thermodynamics
microscopic and macroscopic point of view
systems, properties, process, path, cycle.
Units
pressure, temperature
Zeroth law.
First law
application to closed and open systems,
internal energy,
specific heat capacities CV and CP
enthalpy

UNIT II SECOND LAW OF THERMODYNAMICS

Second Law of thermodynamics
statements
equivalents of Kelvin Plank and Clausius statements.
Reversibility
Irreversibility, reversible cycle
Carnot cycle and theorem.

UNIT III INTERNAL COMBUSTION ENGINES(Qualitative Treatment Only)

Classification of IC engine
IC engine components and functions.
Valve timing diagram and port timing diagram
Comparison of two stroke and four stroke engines,
Comparison of petrol & diesel engine,
Fuel supply systems,
total fuel consumption,
specific fuel consumption,
mechanical efficiency, BHP, IHP, FP
Ignition Systems,
Lubrication system,
Cooling system, MPFI, DTSI, CRDI.

UNIT IV REFRIGERATION AND AIR-CONDITIONING

Principles of refrigeration,
refrigerator& heat pump cycle,
refrigerants, refrigerant properties,
refrigerant selection,
vapour compression refrigeration cycle,
vapour absorption cycle, dry bulb temperature,
wet bulb temperature, relative humidity,
comfort air-conditioning,
Psychometric chart,
humidification, de-humidification,
air coolers, cooling towers.

UNIT V HEAT TRANSFER (Qualitative Treatment Only)

Heat transfer through conduction and convection,
Fourier’s law of conduction
Problems on one dimensional heat conduction through plain walls,
composite walls,
cylinder walls, spheres.
Extended surfaces: Fins.
Problems on heat transfer through rectangular fin,
triangular fin, circumferential fin,
pin fin, fin efficiency, fin effectiveness.
Heat transfer through radiation,
Stefan Boltzman Law, black body,
grey body, shape factor.
Types of Heat Exchangers.

OUTCOMES

Upon completion of this course, the students can able to

CO1: Understand the basic concepts associated first law of thermodynamics
CO2: Understand basic concepts associated with second law of thermodynamics
CO3: Describing the working of I.C engines and to determine its performance parameters
CO4: Basic principles of refrigeration, air conditioning and psychometric chart
CO5: Distinguishing the various modes of heat transfer and its applications

TEXT BOOK

  1. Nag P. K, ‘Engineering Thermodynamics’ Tata McGraw-Hill, 6thEdition, 2017.

REFERENCES

  1. Holman.J.P., “Thermodynamics”, 4th Edition. McGraw-Hill, 1988.
  2. Kothandaraman. C.P., Domkundwar. S. & Domkundwar. A.V., “A course in Thermal
    Engineering” Dhanpatrai & Co § Ltd, Fifth edition, Reprint 2004.
  3. Kothandaraman. C.P., “Heat and Mass Transfer”, New Age International § Publishers,
    4th Edition Reprint 2015.
  4. Michael A. Boles, Yunus A. Cengel, YunusCengel, “Thermodynamics”, 8th Edition, Mc Graw-Hill India, 2017.