Engineer invents gadget to stop domestic LPG pilfering:
A simple device, invented by city based engineer could save the loss of Rs 4,300 crore every year from the government coffer The gadget ingenuous in its simplicity prevents the diversion of subsidized domestic LPG cylinders to the commercial sector: it is currently under trial by Indian Oil companies. It is the gas burner in his kitchen that gave engineer the idea. The domestic LPG cylinder weights 14.2 kg and is priced at Rs 265. Even with a subsidy of Rs 235 the cost comes to Rs 25.50 per Kg. The commercial cylinder of 19 kg is priced at Rs 1100 and there is no subsidy making it almost Rs 58 a kg. Since commercial cylinders cost more a huge number f subsidized cylinders get diverted to the commercial sector – restaurants hotels and even the transport sector. Even by a conservative estimate of the ministry of petroleum, 20% to 25% of the cylinders get diverted to the commercial sector. The three oil companies IOC, BP, and HP – supply lakhs of cylinders a day. But a quarter of this gets diverted to the commercial sector at a premium. If you take the subsidy drainage into account (Rs 235 per cylinder) for the 5 lakh cylinders that get diverted to commercial sector the cost comes to a staggering Rs 11.75 crore a day . The annual loss of government is nearly Rs 4300 crore. The first thing came to engineer’s mind was anti-pilfering device that could be fitted to the cylinder to regulate the flow of gas to the burner. In the average kitchen oven the two burners draw gas at the rate of 189 g/h and 143 gm /h In the commercial sector, where bigger burners are used, the range is from 2kg /h to 6 kg /h. My gadget makes sure that the flow from a domestic cylinder never exceeds 189 g/h. The theory is simple, if you can ensure this much flow to your burner through a valve and not a g/h more, commercial users cannot use domestic cylinders any more, simply because this flow would be low too or their purpose. But to do this, it essential to ensure that the filling time is not comprised. A cylinder takes 40 sec to fill up. Making valve to facilitate this was a big challenge. SC valve has a full opening inlet with tamper proof digitally sealed locking and a regulated outlet for controlled discharge. I have got the device patented and it is now undergoing trials before its commercial use nation wide. ‘
Creating ice at room temperature:
Researchers have studied the underlying mechanisms of water condensation in the troposphere and found a way to make artificial materials to control water condensation and trigger ice formation at room temperature. Their work may lead to new additives for snowmaking, improved freezer systems or new coatings that help grow ice. Scientists had predicted that materials with crystal faces exhibiting a structure similar to that of hexagonal ice, the form of all natural snow and ice on Earth would be an ideal agent to induce freezing and trigger rain. Barium fluoride (BaF2) a naturally occurring mineral was studied. Despite having the desired hexagonal structure BaF2 turned out to be poor ice-nucleating materials. But when the mineral’s surface has defects its condensation efficiency is enhanced. They are now preparing artificial materials to improve water condensation in a controllable way. The researchers’ goal now is to produce environmentally friendly synthetic materials for efficiently including snow. Water that condenses in an ordered way at ambient temperature at ambient conditions can be called room temperatures.