Mechanical Engineering Portal

Hydraulic turbines are Machines that convert hydraulic energy into mechanical energy. The mechanical energy runs an electric generator directly coupled to the turbine's shaft. The generator generates electric power, sometimes known as hydroelectric power. Generall…

Velox boiler transfers heat from the gas at a much higher rate than the rate achieved with the sub-sonic flow when the gas velocity exceeds the sound velocity. The advantages of this theory are taken to effect the large heat transfer from a smaller surface area in thi…

The equation shown in the image is the Stefan-Boltzmann law. “ P ” is the power radiated by the ideal radiator, and ‘ σ ‘ is the Stefan-Boltzmann constant, which has the value σ = 5.67*10 -8 Wm -2 K -4 Where ‘P’ is in Watts, emissivity (e) has no units, Area (A) m 2…

Fuels are any material that stores potential energy in forms that liberate heat energy upon burning in oxygen. The calorific value of fuel is the total quantity of heat liberated when a unit mass or volume of fuel is completely burnt. Higher or gross calorific value …

Comparisons between Reciprocating and Rotary Compressors can be made in aspects like pressure ratio, handled volume, speed of the Compressor, vibrational problem, size, air supply, purity of compressed air, compression efficiency, maintenance, mechanical efficiency, l…

A simple open-cycle gas turbine consists of a compressor, a combustion chamber and a turbine, as shown in the figure below. The compressor takes in ambient fresh air and raises its pressure. Heat is added to the air in the combustion chamber by burning the fuel and ra…

Often, materials are subject to an external force when they are used. Mechanical engineers calculate those forces, and material scientists determine how materials deform or break as a function of force, time, temperature, and other conditions. Materials scientists lear…