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…

Kepler's First Law (The Law of Ellipses): Each planet moves in an elliptical orbit, with the sun at one focus of the ellipse. This law is also known as the law of elliptical orbits and obviously gives the shape of the orbits of the planets around the sun. Kepler…

The problems of mechanics can be solved by Newton's laws of motion . The three laws proposed by Sir Isaac Newton are described as follows. Newton's First Law of Motion: Newton's first law of motion states that every object will remain at rest or in un…

Comparison of solids, liquids and gases (fluids) can be made in aspects like macroscopic description, mobility of molecules, density, molecular spacing, the effect of shear stress, everyday stress, viscosity and compressibility below in the tabular form. S.No A…

Airplanes are traveling machines manufactured to transport human beings and luggage from one location to another. Airplanes travel in the air significantly faster compared to roadway vehicles, trains and ships. Airplanes are manufactured in different shapes and sizes …

The decision between selecting an oil or grease for lubrication can be made only after carefully considering several factors. When to lubricate with oil: Oil is generally preferable in systems that consistently operate at high temperatures (over 200°F). Oil is pre…

Even though electrical energy can be transmitted or distributed using overhead lines and underground cables, selecting one over the other is based on the reasons listed in the table below. Overhead Lines and Underground Cables   S.no Parameter Overhead lines …