Three components must be present in order for a fire to occur: oxygen (or an oxidizing agent), heat and fuel. This is often represented by the "fire triangle" or "combustion triangle." The fire tetrahedron represents the addition of a component, the chemical chain reaction, to the three already present in the fire triangle. After the fire ignites, an exothermic chain reaction keeps the fire going until something is introduced into the fire that blocks it. Water is one of the most common choices of fire suppressants. But in some cases, water will not suppress the fire, and may even make it worse. Flame retardant chemicals were developed to block the other elements that were part of the "fire triangle." Flame retardant chemicals may block the oxygen (foams), hydrated flame retardant chemicals release water (aluminum trihydrate and magnesium hydroxide) and halogenated flame retardant chemicals (bromine and chlorine) remove free radicals and create a barrier of inert gas that suppresses the chemical reaction creating the fire.
The IoT platform ecosystem is a simple aggregation of critical components and can be visualized through the diagram below.
Topics: Information Technology
The market for 3D printing extends far beyond the casual hobbyist. 3D printing has ride ranging and useful applications across almost every manufacturing industry and sector. BCC Research’s recently published report Global Markets for 3D Printing suggests this market will reach $23.0 billion by 2023 at a compound annual growth rate (CAGR) of 22.4% for the period of 2018-2023. The following is an excerpt from Chapter 3.
Topics: Instrumentation and Sensors