Showing posts with label Engineering Marvels. Show all posts
Showing posts with label Engineering Marvels. Show all posts

Wednesday, June 17, 2009

Zero-emission car from Japan

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Yes, Japan’s Mitsubishi Motors Corporation is to come out with its first zero-emission mini -car. The i-MiEV or the Mitsubishi Innovative Electric Vehicle” is run on electricity and not on petroleum and has no engine or a muffler. It runs quietly. The running cost is just one- third of that of a petrol-powered car or less which looks attractive. While it can run 160 kilometers on a fully charged lithium-ion battery pack that can be charged overnight on a domestic power source, right now, it takes 14 hours to fully recharge the battery aagain. Technological breakthrough in lithium-ion batteries is expected as a normal corollary to this project. Though the cost may be prohibitive now at around $47,000 or 4.6 million yen, it may come down with mass production. Mitsubishi Motors plans to sell this green car initially to corporate and government customers in 2010 and then to the general public. The company hopes to offer about 15,000 units to the general public by 2011. There is no carbon emission from this car at all, a sure way to curb global warming, which is the need of the hour. The Japanese government has offered tax concessions to potential buyers.

The present recession in world economy may not be a limiting factor in the success of this car as the emphasis now is on reducing carbon emissions. Efforts are on in Japan to produce fuel cell cars that produce electricity with hydrogen and oxygen with water being the only byproduct with no carbon emissions at all. The emphasis now is on clean cars that run on biofuel or clean diesel as well as electricity.
Source: Google
Image: Google

Saturday, March 21, 2009

The Matheran Light Railway, India

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The Matheran Light Railway is one of the five mountain railways in India; relics of the British rule. It celebrated its centenary celebrations in 2007.

The western ghat hill station of Matheran was discovered by Mr. Hugh Malet, the Collector of Thane district in Maharashtra in India in 1910. Prior to the arrival of this train, tourist used to visit this hill station by palanquin or palki. This town is 30 km from Mumbai, 800 meters vertically above sea level.

The construction of this railway was proposed by one Abdul Hussein, son of the business tycoon, Sir Adamjee Peerbhoy of Mumbai, India in 1904 and completed in 1907. The government took over this in 1932. The train covers the 21-km long route in 2 hours. Neral, the starting station lies midway between Mumbai and Poona. This 2-feet narrow gauge line runs parallel to the main broad gauge

As the train puffs its way into the clear mountain air, exciting hills above and the plains below are clearly visible.

Source: Young World, March 10, 2009
Image: Google

India's Darjeeling Himalayan Railways

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India’s Darjeeling Himalayan Railway.

Lovingly called the Toy Train, the Darjeeling Himalayan Railway or the DHR is one of the most spectacular narrow gauge steam railways and one of the finest engineering feats of the world. India boasts of five mountain railways. Operating since 1881, this train runs from New Jalpaiguri in the eastern India to Darjeeling via Siliguri and Kurseong covering a distance of 88 km of which 10 km are in the plains. The journey takes up to 10 hours as against 3 hours by car and 4 hours by bus, but it does offer excellent opportunities for photo features and documentary videography in its exotic surrounding. It has steep gradients and amazing loops and its gauge is the narrowest measuring only 0.6096 m.

The DHR secured the coveted World Heritage Area (WHA) in 1999, the first being Semmering Railway of Austria in 1998.

The Darjeeling Himalayan Railway Society (DHRS) was founded in 1997 by an UK-based International group dedicated to promoting awareness of, interest in, and support for the DHR. This Society is spread over 24 nations with a membership of over 800.

This railway project was originally proposed by one Mr. Franklin Prestage of the Eastern Bengal Railway Company in 1879 and the construction by the Gillander Arbuthnot & Company commenced shortly. The company was renamed the Darjeeling Himalayan Railway Company. Five loops and four reverses (zig-zags) were added later on for safety reasons to ease the gradient. and the track was extended to Darjeeling in 1886. Innovations to stations were carried out and the passenger and goods traffic picked up fast in due course, but competition from the bus service affected DHR as the travel time by bus was comparatively less. Natural calamities like earthquake in 1897 and a major cyclone in 1899 had caused damages to this railway. The Batasia loop line came up in 1919 to overcome the problems of gradients on the ascent from Darjeeling. The 1934 earthquake in the northeast India did not spare the DHR, but normalcy was restored rapidly and the traffic picked up again.

After independence, the Indian Government purchased this company and various constructions were taken up at various times.

Of note about Darjeeling. Mother Teresa was involved in the first convent school established in Darjeeling in 1846.


Source: Google
Images: Google

Friday, March 20, 2009

The Nilgiris Mountain Railway

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The Nilgiris Mountain Railway (NMR)

The Nilgiris Mountain Railway is a marvel of engineering. It connects the town of Mettupalayam with the hill station of Udhagamandalam or Ooty in the Nilgiris of southern India. A Swiss inventor named Riggenback was the brain behind this project. Planned in 1854, the first train steamed out only 45 years later. While Coonoor was the original destination until 1899, Fern Hill and Ooty were added to the route in 1908. Hauled by the Swiss steam engines designed by the Swiss Locomotive Works, the NMR now has twelve such engines. It covers the 46-km route between Mettupalayam and Coonoor in four-and-a-half hours with five stations. Its average speed for safety reasons is 10.4 km per hour which entitles it to be the slowest train in India.

This mountain railway has been declared a World Heritage Site during the 29th session of the World Heritage Committee meeting in Durban for its “outstanding contribution in keeping steam heritage tourism alive.”

The ride is really an experience. The train passes through sharp curves en route. As it winds its way slowly, we can see the mountain streams flowing onto the plains below. There are five picturesque stations en route, Kallar, Adderley, Hill Grove, Aruvankadu, and Lovedale. Fern Hill the last station was closed down a few years ago. There are 16 tunnels and 26 bridges en route.

Imagine the steep incline of this railway route from 330 feet at Mettupalayam to 2,200 meters at Udagamandalam. The steep incline begins at Kallar. Due to the incline, the train runs on the rack and pinion system or the Alternate Biting System. You will be surprised to see the engine at the end while climbing to push it, but on the return journey, the engine is at front to ensure proper speed. The train is a charming blue and cream with wooden coaches and large windows.

A window seat is a must to enjoy this ride.
Source: Young World March 10, 2009
Image: Google

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