1/4 inch spark plug

Engine Ignition System

February 8, 2020 Nigel 0

When we talk about the engine ignition system there are two fundamental types: compression ignition spark ignition. This is the system for igniting an fuel-air mixture that has been compressed in the cylinder by the [more…]

SEO image for engineering post

Model Engineering SEO

February 8, 2020 Nigel 0

What do I mean by Model Engineering SEO? SEO is search engine optimization, model engineering is a hobby that feels very vibrant, but the view is it is dying out. Let’s start with the perhaps [more…]

old lead acid battery

Lead Acid Battery

February 7, 2020 Nigel 0

The Lead Acid Battery is a battery with electrodes of lead oxide and metallic lead that are separated by an electrolyte of sulphuric acid. The overall reaction is: PbO2 + Pb + 2H2SO4 <=> 2PbSO4 [more…]

nickel metal hydride battery

Nickel Metal Hydride Battery

February 5, 2020 Nigel 0

The battery has a nickel-hydroxide cathode, a metal hydride (a variety of metal alloys are used) anode, and aqueous potassium hydroxide electrolyte. This is a rechargeable battery chemistry that has been superseded by lithium ion, [more…]

lithium ion battery schematic

Lithium Ion Battery

February 4, 2020 Nigel 0

In a rechargeable lithium ion battery lithium ions move from the negative electrode to the positive electrode during discharge, and back when charging. The cathode is a lithium transition metal oxide, eg manganese or cobalt [more…]

boiler endplates and tubes

Steam Boiler

February 1, 2020 Nigel 0

A device for generating steam for power, processing, or heating purposes or for producing hot water for heating purposes or hot water supply. I’ve included the firebox within the overall steam boiler as it’s difficult [more…]