Prasad Murugesu

Mechanical Design Engineer, Shin Nippon Lanka PVT Ltd.
Colombo, Sri Lanka

About Prasad

Areas of Expertise

Mechanial Engineering and Material Science, HVAC/Plumbing/Electrical

Comments & conversations

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Prasad Murugesu
Posted over 1 year ago
What potential does 3D printing have for developing economies?
Brendan, I have given it some thought. I may have to retract my statement of large scale manufacture of firearms using 3D printing, but the possibility still itches at the back of my mind because a few have achieved it. I apologise for being such a pessimist. I sincerely wish a laid back industry such 3D printing takes a big leap forward. 3D printing has never been an option, accessible or even know to the common man, such technology will not only be technically helpful but also be an inspiration to others. Hope a see an organization revolutionize 3D printing, much like Xerox did to photocopying. Heck I would buy one for myself if it becomes cost effective, it's an engineer's dream. A technical issue would be sort out the printing methods best suited for on-site application and the materials/resin used in printing, can they be more economical and meet all the requirements? Example; when installing pipes, sometimes fittings like elbows and tees are of inferior quality or the required size is not manufactured by the manufacturer. Should 3D printing (printer and materials) be a worthwhile investment, the contractor/fitter can print the required parts in advance and assemble with ease. With that comes the problem of designing the parts and CAD literacy, both can be solved by a web-site or app which provides access to ready to print part designs.
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Prasad Murugesu
Posted over 1 year ago
What you think about prohibit selling drugs,alcohol and cigarettes?
Your question overlaps with the marijuana vs. cigarettes and alcohol debate. Problem is all three and drugs in general have been in existence for centuries. If alcohol were to be invented now, it would a narcotic. Opium and marijuana were medicinal. Uncontrolled sale and abuse of such substances causes a ripple effect on society. While you cannot simply ban the worldwide production and sale of such substances, the only solution is the old way; Education and awareness. Many thought this was limited to classrooms and seminars, but it does not stop there, most abusers are mentally affected, they see substance abuse a way of releasing the pressure. Proper identification and rehab of such persons can help wean society of addiction. For when there is no demand, production ceases. Actually the world a better place now, there is more awareness for addicts, and rehab is sort after by many. You can, if substance abuse causes a ripple, proper treatment is the counter-ripple. Slowly but steadily, change is inevitable.
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Prasad Murugesu
Posted over 1 year ago
How do you start your creative spark? How to be creative with others?
A creative block may be due to not connecting with other people, regardless of who they are. I believe a good conversation with someone always inspires you or at least eases out your thought block. Sharing ideas or views is a great way to refresh one's mind and welcome new ideas. It's like a proper sit down conversation with a best friend or family member, it never ends where it started, but at the end of it you feel better, in a way you cannot explain. It's your mind taking a break. Sometimes, temporarily straying away from your goals can push you harder towards it. When it comes to inspiring others, teaching or guiding can be huge plus. Rather than a monotonous explanation a challenge of sorts winds up the mind, only to unspool when the spark occurs. And working as a group (no leaders, just interconnected duties) helps people achieve a more creative thought process. As a group you not only have to set your own goals, you have to take others into consideration and work in harmony for the greater good. As an engineer myself, I have to constantly innovate and be updated with current technology and standards, be it work or individual research, there's always a point in the day where you'll want to throw in the towel. While I try to motivate myself, a trusty team and manager helps alot. While creating a spark is one, how can you sustain it? How do you decide that this chosen path is the ideal one?
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Prasad Murugesu
Posted over 1 year ago
Which method of avoiding water shortage is more valuable: developing new sources of water or conservation of it?
Yes desalination has been proved to be effective, but it more that just plain expensive, desalination concentrates the seawater near the plant, affecting more than 90% of valuable marine life. If i'm not mistaken desalination is banned in the U.S? More than that, why spend unnecessary time and energy when cheaper alternatives are available. I've recently posted a conversation regarding this matter: Taking Payback Period Analysis out of Water Conservation System Designs. Check it out, hope it'll give you some insight on this matter.
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Prasad Murugesu
Posted over 1 year ago
What potential does 3D printing have for developing economies?
Maybe, maybe not. Sadly thats the world we live in. I followed a course on Rapid Prototyping using 3D printing in college, it was all so fascinating, the possibilities to build a better future are endless. An early 3D printer (not sure of the type though) was demonstrated in Jurassic Park 3 (yeah the movie!), they used it to replicate a velociraptor's vocal column. Though the movie was intended to be science fiction, some aspects were clearly real. Once 3D printing is popularized, their demanded increases, cost decreases and CAD technicians become Gods. However, with a dose of corruption and a pinch of money, what'll stop extremists from designing and manufacturing firearms in a basement? Unless violence is eradicated from the human genome, it is best if useful, life changing technologies are left under utilised. Should it fall into the wrong hands, 3D printing may suffer the same fate as gunpowder; from fireworks to shotguns.
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Prasad Murugesu
Posted over 1 year ago
Which method of avoiding water shortage is more valuable: developing new sources of water or conservation of it?
If I may add to my previous comment, think of it this way; If you take 1 litre/gallon of water for your use, ask yourself these questions: 1) Where did you obtain it from? - (Reservoir, groundwater/aquifer, desalinated etc.) 2) What purpose are you going to use it for? Restrict volume of water needed by doing so. 3) Can it be reused once you're done? If not can treatment recover some, if not all? 4) Are you encouraging others to do the same?
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Prasad Murugesu
Posted over 1 year ago
Which method of avoiding water shortage is more valuable: developing new sources of water or conservation of it?
Before I give my opinion, did you know that large buildings (Malls, airports etc.) conserve water by collecting condensate water from their Air Handlers or AC Units. In some cases, millions of gallons per year are saved. For example in the Middle East, fresh (potable) water is obtained by desalinating sea water, a highly energy consuming process. On the other hand, their airports converse condensate water. Now, why there's water shortages, over-consumption and aquifers not being replenished. Mostly due to climate shifts and global warming, there's decreased rain near the aquifers. Solution: Conserve and reuse more. The condensate recovery I've mentioned before is only implemented in regions where water is "expensive enough", so that they recover the installation costs. While reusing water from lavatories, dish washers etc. for irrigation and such, active conservation will result in water being used efficiently.
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Prasad Murugesu
Posted over 1 year ago
Earth approval of Corporations
Hello Paul, its a great idea to incorporate all the important aspects of a corporation an initiate a rating system.I'm not sure if such a system exists, but this is my suggestion. I guess you could divide them into categories, example: Eco-friendliness, Customer Satisfaction (reviews), Employer Satisfaction (reviews), Annual Turnover etc. As far I know, LEED ratings are used for companies and Energy Star ratings for electrical appliances. Both for the eco-friendliness aspect. The rest of the ratings will have to peer based, therefore a site and a subsequent app will be the best idea. For example a food processing plant: Their factories and offices, are they LEED certified (Silver, Gold or Platinum)? This will cover water and energy savings, waste management and air quality inside the plant. Since this a commercial product ISO standards will be required too (another plus). Same applied for the administration building, with additional, employee comfort (lighting, air-conditioning, etc.), working hours, accessibility to public transport and so on. For extra "points" the firm could use a fleet of hybrid vehicles or provide employee with hybrids. All this could go into the company's profile. The rest is upto the client, on review based rating. The challenge would to verify all these, especially taxes and hidden profits and so on. In my opinion it would better for a non-profit organization to collaborate with all these other evaluators and come up with a whole new rating scheme.