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September 2015

The Legend of the Lean Culture – TOYOTA MOTOR CORPORATION

Green Technology in Construction

Shaping grid of future – HVDC  

Review – Manufacturing of Carbon fibers from atmospheric carbon dioxide

Review of Genetic Response study at the University of Liverpool

Koenigsegg – Brainchild behind the worlds fastest car

When it comes to great legends in automotive world Henry Ford, Carl benz, Enzo Ferrari are some of the names which strike our minds. Recently there are few new entries to supercar manufacturers and Christian von Koenigsegg, Founder CEO of Koenigsegg Automotive AB is one among them. He is a man driven by passion. In the following passages I will be briefing his journey as an automobile manufacturer.

Christian was only 5 years old when he first saw a stop-motion film Flåklypa Grand Prix from Norway about a bicycle repairman who builds his own racing car. The film must have made an impression, as a young Christian grew up dreaming of creating the perfect sports car.  His first summer job was at a Suzuki dealership outside of Stockholm, Sweden, cleaning cars. At around this time, his hobby was tuning mopeds and was well known in his area. At the age 22, he started working on a prototype of building the world’s perfect supercar. He first built prototype without any engineering knowledge and he was successful in designing one. It eventually became the first production car for his company CC8S. It became the most powerful homologated production car in the world, according to Guinness Book of Records. The design was minimally altered in the following CCR, CCX, CCXR, Agera, Agera R, Agera RS, One:1 and Regera.

Some of his patents are Dihedral Synchrohelix Door Actuation System, Rocket Catalytic Converter, supercharger response system, Under-pressure dry-sump tank, Triplex suspension, Simplified variable tucbocharger, Carbon wheels and Free-valves.

It’s great that he made all the patents open for public usage. He feels that by doing this he can make his technologies reach every common man.

Another quality of him which inspired me was his determination. For instance,  in 2003, a fire devastated the factory. Although the building was destroyed, most of the equipment and all of the cars under production were saved. They moved to their current location, a former Swedish airplane hangar. In 2004, a new model was introduced, the Koenigsegg CCR. Up until then, Koenigsegg’s cars only complied with regional safety and emissions tests, but with the Koenigsegg CCX, released in 2005, they were able to expand to the whole world. In 2010, Koenigsegg came out with their most recent model, the Koenigsegg Agera. In 2014, Koenigsegg built the Koenigsegg One:1, a mega car, with a power to weight ratio of 1 to 1. In 2015, Koenigsegg released the Koenigsegg Regera, a high performance luxury supercar, at the 2015 Geneva Auto Show in March. At the same time, they released the Agera RS. Despite of such a bankrupt situation, he managed to sustain and he proved to the world the his car were no ordinary. It take extraordinary passion and determination to achieve this height.

Viswanath S V

Image Courtesy:blog.caranddriver.com

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Kari – The Father of Indian Motorsport

Sundaram Karivardhan was born on 20 June 1954 in Coimbatore to noted Indian freedom fighter G.K.Sundaram from the Lakshmi Mills textile family. He did his schooling in Coimbatore and after graduating in mechanical engineering from PSG College of Technology, he completed his master of science at the UCLA, Los Angeles.

AS RACER

From a very young age, he showed a keen interest in bikes and cars. In the United Kingdom he attended the Jim Russell racing school. His first race was 1973 Sholavaram Grand Prix meet, later he appeared every year in newly constructed formula cars from his own garage. Cars he raced ranged from Premier Padmini, Datsun 510, Sipani Dolphin, Formula Atlantic, several cars of his own design and in the final years Formula 3 cars. His last race was in a Formula Ford, in McDowell’s body shell in Chennai’s MMSC track.

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AS CONSTRUCTOR

One of his early complete in-house designs was the Formula Monoposto based on the Formula Atlantic Chevron B40 model nicknamed “Black Beauty”. But motorsports was only for wealthy drivers. In an effort to make racing more affordable in India and improve grassroots level racing he designed and tested a small single seater, dubbed as India’s Formula Ford, with a Maruti 800 engine, and adapting easily available parts, sometimes made in-house. His second design was a two seater car named McDowell 1000 using a Maruti Gypsy 1.0 liter engine.

He was the man behind the FISSME (Formula India Single-Seater Maruti Engine) single-seater. It was India’s first purpose-built race car in a one-make format that made the backbone of the country’s four-wheeler circuit racing.

He was interested in many areas of mechanics, and that included his interest in aviation as his family owned a Cessna airplane. In 1989 he started a small manufacturing plant near Coimbatore to manufacture Power Gilders using a Yezdi 250cc motorcycle engine& Rotax engine. He would often test his gliders flying to the Ooty. The small airstrip in Coimbatore now became the Kari Motor Speedway.

Karivardhan, who was managing director of Coimbatore-based textile major and held this key management position in several of his group companies. Also he ventured into new areas like development of aerators for prawn breeding. One of his other earliest ventures was to manufacture small farm tractors. He purchased rights from car manufacturer to build replica models of the Ford GT40, using a Ford Cosworth, Lotus 7, and AC Cobra. But before commencing production he died in an aircraft crash.

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He died on 24 August 1995 while flying a Puspak trainers aircraft. The accident was widely mourned by the racing scene. His demise almost created a vacuum in Indian Motorsports

The race track in
Coimbatore is named after Karivardhan as Kari Motor Speedway, and in Karamadai in Coimbatore an Industrial Training school is named after him. Some of his former employees have their garages named in his honour. His intended Caterham based car was named Kari 65 in his honour with 65 being his racing

Ashwin .B

Automobile Engineering

The Accidental Invention -To becoming the most useful one

He didn’t know what he Invented will help to take people around the world!!Have you ever been in a Flight? Have you ever wondered what takes you at a speed of 800km/hr? Yeah exactly, the Engines!! Next time in your flight when you see those engines thank Sir Frank Whittle for his invention – The Jet Engines.

Before telling about jet engines I would like to tell you something about his early life.

Frank Whitte (1907-1996)

Early Life:

Frank Whittle was son of a mechanic born on June 1, 1907 in Convetry, England. He attended his local school and moved to Leamington for his higher education. Like us he was interested in something right from childhood towards machines and gas cylinder engines at his father’s Valve and Piston Ring Company.

But sooner when his father’s business faced loses, Frank was unable to continue with his education and spent most of his time in library reading about steam and gas turbines.

Patent:

Do you have a goal or dream to join Air Force? Frank had; after initial failed attempts he joined RAF, England in 1923 and awarded as one of the best five cadetship men in RAF College in 1926. That is the place where the revolutionary invention emerged out. Frank worked on operational turbojet and was the first to register patent for the Turbojet in 1930.

And to your surprise it took eleven years to fabricate the working model and hence Frank’s jet first flew in 1941.

Turbojet Engine:

If you had seen old movies themed at freedom fighting, you would have seen the aircrafts with only the piston engines. The problem we face in the piston engine aircrafts is that only few portion of energy is used to propel and power and efficiency of the engine drop out as we gain higher speeds and higher altitude.

As we get some thoughts in our mind like a sudden spark, Frank had a spark too. He predicted that to move at higher speeds without air resistance a newer type of engine is required.

Frank found that a turbine would be highly efficient prime mover, he found it so because the turbine in jet engine helps to converts most of the heat energy into thrust force same as a rocket engine. If you have watched a video of rocket launch you could see that the kinetic energy of hot gases escape at very high velocity through the rocket nozzle and in same way turbine combined with exhaust duct helps to energize hot gases to a higher velocity.

Set up of the Turbojet Engine:

Have u ever imagined what is inside those monster machines? Yes! The turbojet engine consists of 3 major sections, a compressor and a turbine mounted on extreme ends of the shaft and a combustion chamber in the middle. In addition to them, the engine also has an inlet and an exhaust duct which is visible to the eyes when you see the engine.

Frank’s Model Engine:

Frank’s W1 engine consists of a centrifugal compressor and an axial turbine with both being single stage (one stator and one rotor) turbo-machineries. Having used the fuel as kerosene, he was able to achieve a significant thrust with optimum thrust to weight ratio.

Initially his engine was used only in laboratory test bench and frank himself didn’t have thoughts to fit the engine to the aircraft, later the engine gained attention as the turbojet was more convenient. You won’t believe that the modern aircrafts jet engines and still based on the prototype of Frank Whittle jet engine. And this invention made you and me to say that the distance between India and America is just 18 hours!

So when you’re in a flight next time don’t forget to thank Frank whittle for his invention!

Image Source : Legionmagazine.com

The Father of Robotics

NIKOLA TESLA (1856 – 1943)

We may wonder and get benefited on robotics and automation. In this blog, I would like to share about the person who gave the birth to the robot. Nowadays robots play a significant role in space exploration, industrial automation, defense, medicine and many other fields. Who knows? In future, they’ll may be handling us. What about the past? When was robot invented? Who invented it?

The answer is Nikola Tesla at 1898. You might have known the word Tesla in your subject as the unit of magnetic flux density. Can you remember it? Yes! It’s he. He is called the Father of Robotics. Why because is he invented and patented remote controlled robot using radio wave in November 8, 1898. By using the radio wave as communication medium, he operated the robotic boat in a small pool of water in Madison Square Garden, New york. This led to the development of Space exploration.
At Madison Square Garden during an electrical exhibition, Nikola Tesla used the radio waves to direct the movements of a Robotic boat in a pool of water. It was done by him for the first time in the history of robots. Yes, it is the birthplace of the Robot and Robotics, projectile missiles and torpedoes.

How did Tesla do this Wireless transmission? He made a special boat with an antenna which is used to operate the radio waves coming from the command post. He used a coherer, a special radiosensitive device which receives the radio waves which converted them into mechanical movement. This event was the hot news in American dailies.

A question may arise on how he found the high frequency operation. Nikola Tesla was a tireless experimenter. His experiments led him very early into the fields of high frequency phenomena. In 1890, He worked with the high frequency alternators which were considered to provide high frequency. Later he made the well- known Tesla induction coil or high frequency oscillator. Using these new sources, he could able to demonstrate a number of entirely new phenomena which at lower frequencies had been unobtainable in 1891 and 1892 in England and France respectively. Tesla called the attention to the high frequency phenomena that by taking his oscillator, grounding one side of it and connecting the other side to an insulated body of large surface, it was possible to transmit electrical signals with high frequency to a greater distance and it could communicate in this way to other oscillator in similar resonance therewith. This had been the starting point of invention of radiotelegraphy as we know it today.

On July 4, 1997 the NASA’s Explorer-Robot “Sojourner” invaded Mars and became the vehicle to roam on the surface of the Red planet guided by the radio waves. Do we know that Tesla did similar exploration 100 years ago with his robot? Rotating magnetic field, Alternating Current, AC motor are a few among Tesla’s main achievements which have wide range of applications as of now in the world. And one more interesting fact is that Tesla has had over 700 patents.

As I mentioned earlier, international unit of magnetic flux density is denoted after the name of “Tesla”. The Nikola Tesla Museum was founded on December 5, 1995 by the Government of Federal People’s Republic of Yugoslavia at the central area of Belgrade, Serbia. This museum consists of many valuable collections in it including the photo of Tesla Remote Control. His birthday (July-10) is considered as “Nikola Tesla Day”.

We just enjoy the inventions of many people like Nikola Tesla. Sometimes it may not be necessary to know the science behind those inventions. But the important thing is to try know about the inventors and their efforts and to utilize them into right way.

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