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Thermodynamics

Difference between impulse turbine and reaction turbine

The basic difference between impulse and reaction turbine is that in impulse turbine steam flows through nozzle and impinges in moving blades,while in reaction turbine Steam flows initially from guide mechanism and then from moving blades. Following are the some points of comparison between an impulse and reaction turbine. Impulse Turbines In impulse turbine steam flows through nozzle and impinges in moving blades. ...

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Diesel engine Vs Petrol engine

The basic difference between diesel engine and petrol engine is that Diesel engine draws air during suction stroke,low speed engine and costly than petrol engine,while petrol engine draw mixture of petrol and air and are high speed engines.       Diesel Engine properties Diesel engine only draws air during suction stroke. The fuel is injected in the form of ...

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Difference between gas turbine and steam turbine in tabular form

The basic difference between gas turbine and steam turbine is that  gas turbine is easy to start and control easily while steam turbine is difficult to start and difficult to control. Idea of gas turbine is very old one,its working principle is an advanced version of wind mill.To achieve efficient working of turbine,the movement of  gas is controlled and directed ...

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Difference between reversible and irreversible process in thermodynamics

The basic difference between reversible and irreversible process is that in reversible process the system remains in thermodynamic equilibrium ,while in irreversible process the system does not remain in thermodynamic equilibrium. Reversible process in thermodynamics “A process which can be retracted in exactly reverse order without producing any change in the surroundings is called reversible process”. In the reverse process, ...

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examples of entropy in everyday life

Entropy measures how much thermal energy or heat per temperature.Campfire,Ice melting, salt or sugar dissolving,  popcorn making and boiling water are some entropy examples in your kitchen. The concept of entropy was introduced into the study of thermodynamics by Rudolph Clausius in 1856 to give a quantitative basis for the second law. It provides another variable to describe the state of ...

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What is difference between heat and temperature?

Heat and temperature are two different quantities. Heat is the form of energy that transfer from hot body to cold body.Its unit is joule.While the temperature is the degree of hotness and coldness of the body.Its SI unit is kelvin. heat and temperature difference Heat Temperature Heat is a form of energy that can transfer from hot body to cold ...

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Difference between conduction,convection and radiation

There are three modes of heat transfer,conduction,convection and radiation.In the process of conduction heat transfer from hot body to cold body due to free electrons.In convection heat transfer due to actual movement of molecules,While in radiation heat transfer in the form of electromagnetic waves. There are three different ways of heat transfer.If you learn difference between conduction,convection and radiation,then you ...

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Conduction heat transfer examples and applications

convection heat transfer Radiation heat transfer “The mode of transfer of heat by vibrating atoms and free electrons in solids from hot to cold parts of a body is called conduction of heat.”Radiator is an good example of conduction heat transfer. The handle of the metal spoon held in hot water soon gets warm. But in case of a wooden ...

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Thermal conductivity:Definition,formula,examples and applications

“The rate of flow of heat across the opposite faces of a meter cube of a substance maintained at a temperature difference of one kelvin is called thermal conductivity of that substance.” Thermal conductivity equation Conduction of heat occurs at different rates in different materials.In metals, heat flows rapidly as compared to insulators such as wood or rubber.Consider a solid ...

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kelvin temperature scale with formula and examples

How to convert Kelvin to degrees Celsius? Temperature on Celsius scale can be converted into kelvin by subtracting 273 from the temperature in Kelvin scale. Kelvin to Celsius formula  C = T (k) – 273 Kelvin to ºC example problems Convert 300 kelvin to ºC Solution: T = 300 k Formula:       C = T (k) – 273 C = ...

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