What is Thermodynamics? The word thermodynamics is derived from Greek words ‘Thermo’ and ‘Dynamics’. The word ‘Thermo’ means ‘Heat’. The word ‘Dynamics’ means ‘Force’. Hence the primitive concept of thermodynamics was to get power (or force) from hot bodies. This is the scope of thermodynamics which we study in Mechanical Engineering but scope of the… Read More »
In this article we will try to draw a Comparison Between Centrifugal Pump and Reciprocating Pump. Images of Centrifugal Pump and Reciprocating Pump Now let’s understand differences between Centrifugal Pump and Reciprocating Pump with the help of table given below. Sr. No. Centrifugal Pump Reciprocating Pump 01 Centrifugal pump has smooth and continuous discharge Due… Read More »
What are Unit Quantities of a Turbine? Unit Quantities of a Turbine are certain quantities related to a turbine, which are obtained when the turbine operates under unit head (i.e. H = 1m). It is assumed that efficiency of the turbine remains same in both the cases (i.e. when turbine is working at unit head… Read More »
In this article we will discuss ‘Draft Tube’ and its importance in reaction turbines. Later on, in the article we will learn different types of Draft tubes. What is a Draft Tube? A draft tube is a kind of tube which connects (or acts as an intermediately) between the water turbine exit and tail race.… Read More »
In this article we will understand concept of ‘Dimensionless Numbers’. After understanding it we will discuss some important dimensionless (Non-Dimensional) numbers related to fluid mechanics field. What is a dimensionless number? As the name indicates dimensionless numbers are not associated with any dimensions, like m, kg, sec etc. Non-dimensional numbers are the ratios of two… Read More »
In this article we will have discussion on Notches and Weirs. We will first go through the definition of each and then we will try to understand different types of both. At the end of our discussion we will understand the differences between both of them. What is a Notch? A notch is a kind… Read More »
What is a Kaplan Turbine? Kaplan turbine is a propeller type, axial flow water turbine. It has adjustable blades. Adjustable blades help in obtaining good efficiency at wide range of head and discharge available to the turbine. It is suitable for low head and high flow applications. It is an evolution of Francis turbine. It is… Read More »
What is a Francis Turbine? A Francis Turbine is a type of reaction turbine in which inward flow (of water) is mixed. Mixed flow means a combination of both axial and radial. It is mainly used for electrical power generation. Operating parameters of Francis Turbine Head: 40 m to 600 m RPM: 75 to 1000… Read More »
What is a Planer Machine? A planer machine is a type of metal working machine that uses linear relative motion (reciprocation) between the workpiece and a single-point cutting tool to cut the work piece. General Bentham invented it. It is very much similar to a shaper but there are some basic differences. A Planer Machine… Read More »
What is a Shaper Machine? A Shaper Machine is a special kind of manufacturing machine that uses liner reciprocating motion of single point cutting tool to generate a linear tool path. Working Principle of the Shaper Machine In the Shaper machine a single point cutting tool is rigidly mounted on the tool holder, which is… Read More »