basic concepts in thermodynamics p m v subbarao professor mechanical engineering department i i t...
TRANSCRIPT
Basic Concepts in Thermodynamics
P M V SubbaraoProfessor
Mechanical Engineering Department
I I T Delhi
Thorough Familiarization of Simple Premises…..
Heart as a Thermodynamics System
Operation of Left Ventricle
Cyclic Operation of Heart
Cyclic Operation of deceased Heart
LPG Stove
Schematic Diagram of LPG Stove
Electric Stove
Identification of Properties
• (a) Colour of a filament;
• (b) Age of a vehicle tire;
• (c) Life of a bulb ;
• (d) Specific heat of a solid;
• (e) Pressure;
• (f) Temperature;
• (g) heat;
• (h) Calorific value of a fuel.
Colour is due to Incandescence
Incandescence is the emission of light (visible electromagnetic radiation) from a hot body as a result of its temperature.
Spectral Analysis of Incandescent Filament
Age of A Vehicle Tyre
Made as Property
In the example above:DOT EJ8J DFM 408
DOT EJ8J DFM 408Manufactured during the 40th week of the year
DOT EJ8J DFM 408Manufactured during the 8th year of the decade
Tires Manufactured Before 2000
Made as Property
In the example above:DOT U2LL LMLR 5107DOT U2LL LMLR 5107 Manufactured during the 51st
week of the yearDOT U2LL LMLR 5107 Manufactured during 2007
Tires Manufactured Since 2000
Specific Heat : Is it a Property ? Or ……