What is the Specific Heat of the Substance?
When the substance is heated its temperature increases and when the susbtance is cooled its temperature reduces. The amount of heat required to added to the susbtance to increase it temperature by unit degree is called as the specific heat of the susbtance.

Published by Haresh Khemani (14,806 pts ) on Aug 19, 2008 to
Mechanical Engineering Articles
What is Thermodynamic Equilibrium: Part-2: Causes of Non-Equilibruim of the System
The two systems are said to be in thermodynamic equilibrium wih each other when they are in mechanical, chemical and thermal equilibrium with each other. Here are various types of equilibrium and the conditions for thermodynamic equilibrium of the system.

Published by Haresh Khemani (14,806 pts ) on Aug 18, 2008 to
Mechanical Engineering Articles
What is Thermodynamic Equilibrium? Part-1
The two systems are said to be in thermodynamic equilibrium wih each other when they are in mechanical, chemical and thermal equilibrium with each other. Here are various types of equilibrium and the conditions for thermodynamic equilibrium of the system.

Published by Haresh Khemani (14,806 pts ) on Aug 18, 2008 to
Mechanical Engineering Articles

How Sadi Carnot’s Findings Led to Invention of Second Law of Thermodynamics
The second law of thermodynamics is considered to be the most fundamental law of science. The foundation stone of this law was laid down by young french scientist Sadi Carnot in the year 1824. Let us see how his findings led to invention of second law of thermodynamics.

Published by Haresh Khemani (14,806 pts ) on Aug 14, 2008 to
Mechanical Engineering Articles
Applications of Second Law of Thermodynamics: Part-2: Refrigerators
The second law of thermodynamics is considered to be the most fundamental law of science. It explains not only the working of engines, refrigerators and other equipments used in our daily life, but also highly advanced theories like big bang, expansion of universe, heat death etc.

Published by Haresh Khemani (14,806 pts ) on Aug 13, 2008 to
Mechanical Engineering Articles
Applications of Second Law of Thermodynamics: Part-1: Automobile Engines
The second law of thermodynamics is considered to be the most fundamental law of science. It explains not only the working of engines, refrigerators and other equipments used in our daily life, but also highly advanced theories like big bang, expansion of universe, heat death etc.

Published by Haresh Khemani (14,806 pts ) on Aug 13, 2008 to
Mechanical Engineering Articles

Air Standard Cycle: Part – 1
To carry out the analysis of the heat engines, the concept of air standard cycles was conceived. In these cycles certain mass of air is considered to be working in the thermodynamic cycle.The two most commonly used air standard cycles are Otto cycle and Diesel cycle.

Published by Haresh Khemani (14,806 pts ) on Aug 9, 2008 to
Mechanical Engineering Articles
Thermodynamic Ericsson Cycle
Thermodynamic Ericsson cycle was invented by John Ericsson after carrying out lots of research on number of heat engines developed by him. Ericsson cycle is best comapred to Stirling cycle.

Published by Haresh Khemani (14,806 pts ) on Aug 8, 2008 to
Mechanical Engineering Articles
Why is the Stirling Engine not used in Cars?
It is said that Stirling engine, which works on the principle of Stirling cycle, can give the maximum possible efficiency and they create least pollution since they use gas as the working fluid. Even then they are not used in the cars, why?

Published by Haresh Khemani (14,806 pts ) on Aug 7, 2008 to
Mechanical Engineering Articles
Thermodynamic Stirling Cycle and Stirling Engine: Part - 2
Thermodynamic Stirling cycle comprises to two reversible isothermal and two reversible isochoric processes. In the initial years the Stirling engines were used frequently but were later replaced by other engines. In the recent years they have been gaining their lost ground.

Published by Haresh Khemani (14,806 pts ) on Aug 6, 2008 to
Mechanical Engineering Articles

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