From fighter jets to lumbering aircraft carriers, the armed forces produce substantial emissions: the estimated 59 million metric tonnes of CO2 the US Department of Defense emits each year is more than the annual emissions of many European countries. In the UK, the Ministry of Defence is responsible for around …
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3D printing or additive manufacturing is ongoing revolution in manufacturing with its potential to fabricate any complex object and is being utilized from aerospace components to human organs, textiles, metals, buildings and even food. Additive manufacturing is defined by ASTM International as the process of joining materials together, layer by …
Read More »Electromagnetic propulsion (EMP) is the principle of accelerating an object by the utilization of a flowing electrical current and magnetic fields. The term electromagnetic propulsion (EMP) can be described by its individual components: electromagnetic – using electricity to create a magnetic field, and propulsion – the process of propelling something. …
Read More »A big push has been to increase the efficiency of aircraft engines, mainly to make them go faster, to fly higher and use less fuel. Now a new concern has come to the fore, that of environment. We have to use as little fuel as possible, create as little …
Read More »There are three major launch types for spacecraft: vertical takeoff, horizontal takeoff, and air launch. The cost of launching into space is often measured by the change in velocity required to reach the destination orbit, known as delta-v or Δv. The amount of Δv required for a mission depends on …
Read More »A typical passenger vehicle emits about 4.6 metric tons of carbon dioxide per year. This assumes the average gasoline vehicle on the road today has a fuel economy of about 22.0 miles per gallon and drives around 11,500 miles per year. Every gallon of gasoline burned creates about 8,887 grams …
Read More »In the history of spaceflight, almost all spacecraft have been manufactured and assembled on the ground, then integrated into a launch vehicle for delivery into orbit. This approach imposes significant limitations on the size, volume, and design of payloads that can be accommodated within the fairing of a single launch …
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The civil global aviation market has experienced considerable economic growth in recent years and will keep increasing. It is estimated that around 1300 new international airports will be required, and the commercial aircraft fleet will double by 2050, with a projected passenger throughput of 7.2 billion in 2035. This growth …
Read More »A typical passenger vehicle emits about 4.6 metric tons of carbon dioxide per year. This assumes the average gasoline vehicle on the road today has a fuel economy of about 22.0 miles per gallon and drives around 11,500 miles per year. Every gallon of gasoline burned creates about 8,887 grams …
Read More »Energy storage is becoming increasingly important to the power industry. Lithium-ion battery technology has been implemented in many locations, but flow batteries offer significant benefits in long-duration usage applications and situations that require regular cycling throughout the day. With the increasing demand for continuous power supply in all major …
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