## Statements of Second Law of Thermodynamics

The second law of thermodynamics is stated in two ways. Kelvin Planck statement and Clausius statement. Kelvin Planck Statement The Kelvin Planck statement can be expressed as “It is impossible for any device that...

## Steady Flow Energy Equation (SFEE)

Consider an open system through in which the working substance flows as a steady rate as shown in figure. The working substance entering the system at (1) and leaving the system at (2). Let, p1 be the pressure of the working...

## First Law of Thermodynamics – Applications to Open Systems

In any systems, the rate of flow of working fluid is constant with respect to time, then the system is known as steady flow system. In this system, the mass of working fluid enters the system and leaves the system after doing the...

## Second Law of Thermodynamics – theteche.com

According to the first law of thermodynamics, all forms of energy are equivalent. One form of energy can be converted into other form and any process is possible as long as it does not create energy or destroy energy. Also, in a...

## Zeroth Law of Thermodynamics – theteche.com

Zeroth law of thermodynamics states, “When two bodies are in thermal equilibrium with a third body separately, they are also in thermal equilibrium with each other”. As shown in figure let, a system X be in thermal...

## Electrical Thermal Resistance – theteche.com

The thermistor is a semiconductor device that has a negative temperature coefficient of resistance. Thermistors are non-metallic resistors, that is, semiconductors of ceramic materials. Basic Principle : The basic principle...

Image shows vertical axis wind turbine type wind machine. One of the main advantages of vertical axis rotors is that they do not have to be turned into the wind steams as the wind direction changes. Because their operation is...

Image shows a schematic arrangement of a horizontal axis wind machine. Although the common wind turbine with a horizontal axis is simple in principle yet the design of a complete system, especially a large one that would produce...