Thermodyamics Introduction of basic application

Introduction
Teaching Scheme
Jignesh Chhatbar Mechanical Department

 This course will provide an understanding of the basic principles of thermodynamics
which is a must for an understanding of major fields of mechanical engineering systems.
 To understand the basic terminologies and basic concepts of thermodynamics such as
system, processes, and cycles and about the thermodynamic properties emerging out of
the law of thermodynamics.
 To apply the principles of thermodynamics to Mechanical Engineering applications.
Introduction
Objectives of Thermodynamics

 Unit-1 Fundamental Concepts
 Unit-2 Law of Perfect Gases
 Unit-3 Thermodynamics Process on Gases
 Unit-4 Law of Thermodynamics
 Unit-5 Thermodynamics Cycles
Introduction
Units of Thermodynamics

“Thermodynamics is an axiomatic science which deals with the relations among heat,
work and properties of system which are in equilibrium.”
OR
“Thermodynamics is the science of the regularities governing processes of energy
conversion.”
OR
“Thermodynamics is the science that deals with the interaction between energy and
material systems.”
Introduction
Introduction on Thermodynamics

Introduction
Basic concept of Heat Transfer
 Thermal Contact is when two
substances can affect each other's
temperature.
 Thermal Equilibrium is when two
substances in thermal contact no
longer transfer heat.
 Thermal Expansion takes place when a
substance expands in volume as it
gains heat. Thermal contraction also
exists.

Introduction
Basic concept of Heat Transfer
 Conduction is when heat flows through
a heated solid.
 Convection is when heated particles
transfer heat to another substance, such
as cooking something in boiling water.
 Radiation is when heat is transferred
through electromagnetic waves, such as
from the sun.
 Insulation is when a low-conducting
material is used to prevent heat
transfer.

Introduction
System, Surrounding & Boundary
 System :- “Selected quantity of matter or region in space for
thermodynamic study is known as system.”
 Surrounding :-“Everything outside the system, which interacts with the
system, is known as Surrounding of the system.”
 Boundary :- “The real or imaginary surface that separates the system from
its surrounding is known as Boundary.”

Introduction
System, Surrounding & Boundary

Introduction
Thermodynamics System
 Open system- If the system features the exchange of both energy and matter with
its surroundings, it can be called an open system.
 Closed system- If the system can only exchange energy with its surroundings and
cannot exchange matter with it is known as closed system.
 Isolated system- An isolated system is a thermodynamic system that cannot
exchange energy or matter with its surroundings

Introduction
Zeroth Law of Thermodynamics
 Thermodynamics, basically entails four laws :
 The Zeroth law deals with thermal equilibrium and establishes a concept of
temperature.

Introduction
Application of Thermodynamics
 Thermometer- all Industries
 Calorimeter- Food, Fuels Industries
 Heat Exchanger- all Industries deal with fluids
 Air Conditioning- all Industries and house hold
 Room Heaters- all Industries and house hold
 Refrigerator- all Industries and house hold
 Boilers- Power Plants, Sugar, Chemical, Textiles, Rubber Industries etc
 Condenser- all Industries and house hold
 Cooling towers- Power Plants, HVAC Plants, Chemical etc
 Steam Turbines- Power Plants
 Radiator in Automobiles

1. Thermodynamics – An Engineering Approach By Yunus Centel & Boles, McGraw
Hill Education, New Delhi.
2. Engineering Thermodynamics by R.K. Rajput, Laxmi Publications, New Delhi.
 Reference Books
1. Engineering Thermodynamics by CP Arora; Tata McGraw Hill, Delhi.
2. A text book of Thermal Engineering -R.S.Khurmi& J.K.Gupta.
Introduction
Textbooks

Thermodyamics Introduction of basic application

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