## What are Foster Wheeler Boilers?

Modern water tube boilers are designed by Foster Wheeler on the concept of D type boiler. Those currently in service for marine propulsion purposes are ESD I, ESD II, ESD III, ESD IV, and ESRD (reheat) type boilers. We will be covering ESD series boilers in this article. Concept of D-type boiler In the D-type…

## Strain Energy

Strain energy is the internal energy that is stored in any material which is loaded within elastic limit. SE is called as the work done by a loaded material. It is also called as ‘ Resilience’. Unit of SE is N-cm, N-cm, N-mm. For strain energy to be stored material must deform within the elastic…

## Circuit Solving Techniques: Nodal Analysis

Nodal Voltage Analysis Nodal Voltage Analysis finds the unknown voltage drops around a circuit between different nodes that provide a common connection for two or more circuit components. Understanding becomes easier when we take an example. Let’s begin with this example. The question is to find I3 from the diagram below. In the above circuit,…

## Circuit Solving Techniques: KCL And KVL

Kirchhoff’s Current Law(KCL) According to KCL, at any moment, the algebraic sum of flowing currents through a point in a network is Zero. In simple words, the sum of incoming currents to a point is equal to the sum of outgoing currents from that point. Remembering this much would be enough. From figure (a): I1…