Wednesday, August 10, 2016

Journey battle of home made archery to battle of machines ABU ROBOCON 2012

The best work is work that is fun! You enjoy your hobby, so why not take those great ideas, a little determination and turn your hobby into a career. I used to play battle game with own made archery that show up in hobby of working with machines, the more powerful a lead these things provided in steering me to meaningful professional and career choice as mechanical engineering. Choosing a hobby as career, besides outstanding academic achievements i also got opportunity to represent my nation in the international arena amidst other nation in the very start of my career. Asia- Pacific Robot Contest-or as it is more popularly refereed to, the ABU Robocon- was the very first international exposure to my career.  


Perhaps it is the odd Hollywood movie—the kind the industry churns out every once in a while—that has wrought in our minds visions of mechanical wonders and futuristic worlds often too fantastic to be true. Whimsically constructed machines are shown maneuvering in clearly  implausible environs, and these images that pop culture has to offer are largely figments of people’s imagination, yet to be released.

For those living in Kathmandu, such mechanical innovations might seem even more incongruous given our contrasting surroundings, which is why most of us will find it hard to believe that there exist groups of young Nepali undergraduates who toil every year to compete in an international robot competition. If that wasn’t surprising enough, they’ve also, till date, always been counted among-st the best teams from South Asia. In fact, the Nepali team has even fared better in the Asia-Pacific Robot Contest, or as it is more popularly referred to—the ABU Robocon—than India, a country noted for the stellar quality of its technical universities and the prowess its graduates have displayed in the field over the years.

A select, voluntary group of students in their third and fourth years of Bachelor in Engineering Studies at the Pulchowk Engineering Campus—most from the mechanical and electronics engineering departments—have been participating in the ABU Robocon every year since the Asia-Pacific Broadcasting Union (ABU) first introduced the contest in 2002. As a non-profit, professional association of broadcasting organisations that aims to aid the development of broadcasting in the Asia-Pacific region and promote the collective interests of its members, the ABU’s involvement in the robotics competition is as much a cultural celebration as it is a technical one.Every year the organizers select a theme that is culturally significant, and unique to the country that’s hosting the Robocon. The contest itself is nothing short of a “world cup for robot and technology enthusiasts” from the Asia-Pacific region and beyond.

In the year 2012 bout was set to take place in the glittering city of Hong Kong, and the robots that participated were expected to complete a number of allocated tasks, including travelling through simulated tunnels and bridges, locating a ‘bun tower’ and snatching as many of these ‘buns’ as possible. As a city made up of some 200 or so small-sized islands, Hong Kong’s landscape is marked by a profusion of bridges and tunnels. So, the ‘landscape’ the participating robots will have to man-oeuvre through during the contest—set to took place on August 19—was a reflection of the city’s unique metropolitan feature. It is interesting to note that these robots was being taking part in a tradition that the people of Hong Kong’s tiny island of Cheung Chau have been practicing for the past 100 years. The Cheung Chau Bun Festival is an annual affair in which three giant 60-foot bamboo towers, referred to as the ‘Bun Mountains,’ must be stripped of their buns. This was traditionally achieved by young men clambering on top of the towers, but rules have evolved over the years, and these days, only one person is designated to climb each tower.

The practice is believed to bring good fortune to the families of those who manage to strip off the buns placed highest on the towers, and perhaps this is where Robocon 2012 derives its slogan: ‘In Pursuit of Peace and Prosperity.’ The Nepali team set a goal to succeeds in putting up a good show at the festival, that will mean a lot for this group of self-motivated students who have been working, oftentimes without even going home to sleep, purely for the joy of creating, reveling in the bit-by-bit progression of a machine which has come about through their collective ideas and efforts.

There is nothing glitzy, or even the least bit glamorous about the one-storied building from which the Pulchowk Engineering Campus’ Robotics  Club operates. In fact, the brick and concrete structure is rather garage-like; a small group of young men—their hair disheveled and their shirt sleeves rolled up—tinker on an assortment of greasy, noisy machines. Yet, they work wholeheartedly—there is no easy way around this—for in it they find a practical outlet for all that they’ve learnt in their three or four years of college, as well as outside of it. Having thus synthesized their minds and energies into one specific end, to get to compete with others with similar inclinations and interests on an international platform is an incredible opportunity for the team.  Robocon gives the students at Pulchowk a “creative platform”, one that helps advance their steps forward in the ever-intriguing field of technology.





Ref: Article on The Kathmandu Post in title Battle of Machines Jul 27, 2012












Encourage innovation: A relatively new technology has the potential to end the country’s energy crisis

Government of Nepal declared an energy emergency last February – the third one in the last eight years – and targeted to end the energy crisis in two years. With the recent change of government, the fate of the plan is in limbo. Hydropower, the major source of Nepal’s electricity generation, can’t end Nepal’s energy crisis in such a short time by virtue of its capital intensive and time consuming nature. Alternative technologies like solar, micro-hydro, biogas, and wind have been explored, and for several reasons they have not been enough. More appropriate energy generation technologies have to be explored to widen energy access to different parts of Nepal.

A relatively new technology invented in Austria in 2007 and improvised by researchers of Nepal, shows promise of delivering small amount of electric power, from few kilowatts up to 25 kilowatts, generated using the vortex of flowing water. The technology is named Gravitational Water Vortex Power Plant (GWVPP). When water passes through a strategically designed basin, vortex of water is formed causing the turbine located at the center of the basin to rotate. The energy of the turbine can either be used mechanically or be used to generate electricity. Compared to most hydropower plants of Nepal that need hundreds of meters of head (difference of height between the points from where water is first released from river or dam to the location of turbine), and micro-hydro power plants that need tens of meters of head, GWVPP can operate in less than a meter of head.

With relatively lower installation costs and low head requirement, these plants can be installed in many places in Nepal, including Terai, thus providing a novel alternative for electricity generation for places without access to national electricity grid. Small power plants like these can be beneficial for small and medium enterprises in using local and renewable energy resources, thus greatly reducing operating costs and carbon footprint.

Nepali researchers started research works in GWVPPs in Nepal since 2012. After continuous efforts of several researchers of Nepal, two major innovations were accomplished. Instead of original design with cylindrical basins, conical basins were found to be more efficient in forming water vortices. Similarly, if the turbine is positioned at 60 to 70 % of height from bottom, efficiency would be optimum. These innovations were a result of rigorous mathematical modeling, laboratory tests, and design efforts. The researchers overcame problems typically faced by researchers in developing countries including lack of adequate funding, lack of technical expertise, difficulty in manufacturing, and little support from government and non-governmental bodies.  The results obtained have been peer reviewed and accepted by the scientific community in international conferences and academic journals, including Elsevier’s Renewable and Sustainable Energy Reviews.   

Only few research efforts make it from academia to industry and society, which is even less so in Nepal. Besides academic and professional recognition, scientists and researchers covet the potential impact and implementation of their ideas and findings for society the most. The improved design of Nepali researchers, currently patent pending, is finding few takers in Nepal. Currently, a GWVPP of 1.6 kW capacity is being installed in Bagmati River at Gokarna, Kathmandu. The plant will supply electricity to a nearby orphanage and Martyr’s Park.

Technical and commercial feasibility of installation of these plants have been studied for several locations. The goal of the innovators is to install a minimum of 50 such plants ranging from 5 kW to 20 kW capacity in the next 5 years. The initiative led by Institute of Engineering, Pulchowk Campus has garnered support from Kathmandu University and University of Bristol. More research into financial, economic, social and policy dimensions and implications of the technology are in pipeline.
Low head small scale hydro-electricity generation is feasible in many places of Nepal, including Terai and has the potential to help abate the energy poverty Nepal is facing. Innovations made in Nepal’s universities should find its way to society and international scientific community. Research and innovation initiatives like this should be supported by government, people, media, and all to encourage Nepali innovators to develop appropriate solutions to Nepal’s pressing problems.

http://kathmandupost.ekantipur.com/news/2016-08-02/encourage-innovation.html

Rabin Dhakal and Kshitiz Khanal

Rabin Dhakal is a lecturer at Kantipur Engineering College and Kshitiz Khanal is a researcher at Kathmandu University. 

Journey battle of home made archery to battle of machines ABU ROBOCON 2012

The best work is work that is fun! You enjoy your hobby, so why not take those great ideas, a little determination and turn your hobby i...