Steam pressure and temperature are the key parameters of power generation for thermal power plants and also for process application. Steam pressure and temperature decide the amount of heat available, in the form of enthalpy, to do work in the turbine. A drop in both will reduce the plant heat rate in different magnitude. Ef…

Definition - Critical thickness is the maximum radius of insulation up to which heat transfer increases and after which when we add more insulation on it, will decrease the rate of heat transfer . Physical significance- When r(critical) less than R  Conduction  - slightly decreases Convection. - rapidly increases The resu…

Introduction In manufacturing, quality control is a process that ensures customers receive products free from defects and meet their needs. When done the wrong way, it can put consumers at risk. Quality control can be achieved by two methods- S tatistical process control- chart used Six Sigma- follow key principles Sta…

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Contents- Introduction advantages Disadvantages Types of arc weldings Introduction Arc welding is one of the most popular types of welding methods. An electric arc is created between metal and an electrode, forming a puddle where additional welding filler material can be added. Advantages- There are a number of ad…

A plan under complex stress has a normal and shear stress acting simultaneously. Then there will be a resultant stress. The angle between the resultant and normal stress is called the angle of obliquity. Angle of obliquity in Mohr circle

There are mainly two types of cooling systems : Air cooled system, and  Water cooled system.  Air Cooled System   Air cooled system is generally used in small engines say up to 15-20 kW and in airplane engines. In this system fins or extended surfaces are provided on the cylinder walls, cylinder head, etc. Heat generated due…

Mechanical Engineering- A branch of engineering concerned primarily with the industrial application of mechanics and with the production of tools, machinery, and their products.    It is the broadest branch which overlaps with almost every branch of Engineering. Some of them are following- Aerospace  -  This branch of mech…

Definition- When some material cold below the certain temperature  (called critical temp.) then the resistance dropped to zero. this type of material is called superconductor and this phenomenon is called superconductivity. What is a superconductor? Superconductors are materials that conduct electricity with no resis…