By Electronic Enthusiast for Electronic Enthusiast.

Thursday 23 October 2014

India plans to build the world's largest floating solar farm

19:23 Posted by Unknown , , , 1 comment
India plans to build the world's largest floating solar farm
Image by Chesky @Shutterstock
The National Hydroelectric Power Corporation (NHPC), which is setting up the 50 MW solar power project, is currently undertaking a survey of the land on the banks of the Kallada river and hopes to place solar panels over the water bodies spread over nearly 250 acres in the region.This floating solar power technology was developed by India's Renewable Energy College. World's biggest floating solar farm will be built in kollam, Kerala. A state which is blessed with 44 rivers and equal number of lagoons .But the state faces intense energy needs.

The 250 acres where the proposed plant is to be set up was once a beautiful terrain through which river has flown with all her turbulence. And then the land mafia came and mined all the sand for the construction purpose. The flow became unbalanced and the terrain becomes flooded. For all these years residents of the place have found a sparking idea to meet the power requirements for about 50000 homes. Solar panels have to be floated on the water and they need to be anchored firmly on the ground to avoid their  motion on the surface of the water.It is estimated that 5 acres of land are required to produce 1 megawatt of solar power. The Kollam solar project would require 250 acres. $100 million project  will be implemented in the next 2-3 years. The infrastructure and unit cost for floating solar panels is way less compared to land installed ones.

The ecology of the water body is not likely to be affected much and it will also reduce evaporation, thus helping preserve water levels during extreme summer. Solar panels installed on land face reduction of yield as the ground heats up. When such panels are installed on a floating platform, the heating problem is solved to a great extent.


world’s largest floating solar power plant

 

Currently the world’s largest floating solar power plant is located in Japan, where a 1.2 MW float power plant was set up by West Holdings Group over a reservoir in Okegawa City.

Thank you Likeswagon for providing us with this information

Thursday 9 October 2014

India to Build First Offshore Wind Power Project in Gujarat

19:15 Posted by Unknown , , , No comments
India to Build First Offshore Wind Power Project in Gujarat
OFFSHORE WIND POWER TURBINE
The Indian government has announced that it has signed an agreement to build the country’s first offshore wind power project off the coast of Gujarat. The 100 MW project will act as a demonstration for possible further expansion of offshore wind capacity in India.

The Memorandum of Understanding to set up a Joint Venture Company for the purpose of undertaking this offshore wind project was signed on Wednesday by India’s Ministry of New and Renewable Energy, National Institute of Wind Energy, and a consortium of partners.

Shri Piyush Goyal, India’s Minister for Power, Coal and New & Renewable Energy, was on hand to witness the signing, and described it as a great opportunity in the development of renewable energy resources in the country.

The Indian Government will provide subsidy for surveys and studies, as well as obtaining clearances involved for the implementation of the project.

According to the press release published by the Ministry of New and Renewable Energy, this demonstration project “will certainly provide enough learning to move into this sector by taking up similar viable projects in [the] future.”

Shri Piyush Goyal also noted that, given the country’s 7,600 kilometer long coastline, the opportunities for scaling up such a market “are humongous”.

In the same press release it was mentioned that India is preparing the announcement of a Draft National Offshore Wind Energy Policy, which will provide a “conducive environment for harnessing offshore wind energy” including the construction of the first offshore wind project.

With 22 GW of onshore wind capacity already installed, India’s plans to expand offshore is worth learning from.

Solar and wind are doing wonders even for Germany, Netherlands and Sweden, among other European/non-tropical nations…India is also following their footsteps

 

Reference: http://cleantechnica.com/2014/10/02/india-build-first-offshore-wind-farm/

Wednesday 8 October 2014

Japanese technologies could help feed future world of 9.6 billion

10:02 Posted by Unknown , , No comments
Magic Sand From Panasonic
"Magic sand" could be Panasonic's new big thing. This material, a byproduct of the company's induction heating cooking technology, can create an underground dam of sorts. Combined with a water recycling system, the dam makes agriculture possible even in arid regions. This in turn allows crops to grow faster than usual as fertilizers do not seep out.
 

     Using the technology, Panasonic produced 40% more tomatoes than usual this summer from a field at its research center in the city of Kyoto.
     

"We will endeavor to find new avenues to change our business portfolio," said Managing Director Mamoru Yoshida. The company has set the goal of commercial application for its magic sand by 2018, the company's 100th anniversary.
 

     Panasonic has already started sending officials to the Middle East and Africa to promote the high-tech farming method.

Seas in land

The world's population is forecast to reach 9.6 billion by 2050, and innovative ways to address potential food shortages are underway around the globe.
 
     On Sept. 24, a village in Cambodia began cultivating shrimp 200 kilometers from the sea. Seawater is usually used to grow young shrimp into high-priced seafood. The shrimp cultivation in the village uses a special kind of water developed by a Japanese researcher.
 
     Toshimasa Yamamoto, an associate professor at Okayama University of Science, discovered that both oceanic and freshwater fish can live in pure water if a small amount of powdered potassium, sodium and calcium is mixed in. This makes it possible to "readily cultivate oceanic fish in pure water in countries that have no sea," Yamamoto said.

     After working for a major metal processing company, Yamamoto managed a company that designs water tanks. Twelve years ago he was invited to join the university.
 
     The water he developed does not need to be changed due to the stability of components, which also helps make fish disease-resistant. It has already been used to cultivate blowfish and longtooth groupers. Eels raised in the water have become a popular dish at a Japanese restaurant in Tokyo's Nihombashi financial district.

     Yamamoto has consulted with a wide range of people interested in his technology, including Asian entrepreneurs and Middle Eastern royalty.
 

Healthy opportunities

Restrictions on fishing operations are becoming more widespread around the world, yet food consumption is rising fast in emerging economies. The World Bank and the United Nations forecast that farm-raised fish will account for 60% of all fish consumption in 2030.

     Methods developed by Japan to cultivate tuna, shrimp and other seafood could create a large number of business opportunities in this field. "We would like to eliminate metabolic syndrome from the world," said Kazuhiro Okuma, senior  managing director at Matsutani Chemical Industry.

     The Japanese starch maker, based in Itami, Hyogo Prefecture, west of Osaka, is pursuing this goal based on D-Psicose, a rare sugar which is about 70% as sweet as ordinary sugar but has zero calories. Clinical tests have shown that the substance is effective in combating high blood sugar and obesity.
 
Matsutani Chemical has already developed a method in a tie-up with Kagawa University to mass-produce D-Psicose from starch, and is conducting studies to apply the material to a variety of diets.
 
     The company was founded in 1919. Amid post-war food shortages, the company's proprietary technology of producing glucose from starch was instrumental in helping to feed people in Japan.
 
     "Obesity is not limited to developed countries, as people in developing nations often impair their own health by eating too much when they pull out of poverty," Okuma said.
 
     "Pioneering advantages are greater in untapped fields nobody is willing to challenge" than other areas, said Mitsumaru Kumagai, chief economist at the Daiwa Institute of Research.

     As the world struggles to address food-related problems, the more difficult tasks could yield the greatest rewards.

Tuesday 7 October 2014

Toyota develops high-efficiency ‘free piston’

12:17 Posted by Unknown , No comments
Toyota develops high-efficiency ‘free piston’
Toyota's 'Free Piston'
There is probably no better chronicler into the full depth of American ingenuity than YouTube. Here one finds not just computer models for all manner of esoteric combustion engine designs, but actual working prototypes of them, often built by individuals. Big companies can also innovate here sometimes. A new free piston engine linear generator (FPEG) from Toyota Central in Maine is a case in point.

The piston is called “free” because there is no crankshaft. On its power stroke, the piston dumps its kinetic energy into the fixed windings which surround it, generating a shot of three-phase AC electricity. It can be run sparkless through a diesel cycle or run on standard gasoline. What has folks excited is the claimed thermal efficiency for the device — at 42% it blows away the engines used in cars today. Toyota’s demo engine, just 8 inches around and 2 feet long, was able to generate 15 hp. A two-cylinder model would be self-balancing and have much reduced vibration.

Not surprisingly, the valves are electrically operated and can therefore be better used to fine-tune the power delivery through the full range of the stroke. Speaking of strokes, the video indicates a two-stroke design, which might present a few problems for a road-worthy design. For one thing, emissions would be suspect. Nonetheless Toyota imagines that a twin unit design pumping out 20 kW could power a light electric vehicle at a cruise speed of 120 kph (75 mph).


Linear generators and linear combustion engines are nothing new. Shake-to-charge “Faraday” flashlights, smartphones, and even energy-harvesting backpacks are all standard fare, while single-acting direct power pistons have also seen action in applications as intriguing as power-assist boots for the Russian military. The trick is to get the two working efficiently in unison and that is the beauty of what Toyota appears has done. Considering that the piston is decelerated and re-accelerated at each end of the stroke, any mismatch between combustive power input and electromagnetic power extraction needs to be absorbed somewhere. Mechanical or air springs can help although there is still likely to be some efficiency loss.

At the risk of adding some confusion, the device is technically an alternator as it generates AC. As (most) electric cars use 3-phase AC induction or “AC-like” 3-phase brushless DC motors, they could potentially run directly from the output of this device, perhaps save for some intermediary voltage and current conditioning. However, like standard car alternators, there will likely be DC conversion to charge the battery pack — unless Toyota has also secretly perfected the AC battery. There is still plenty of room to innovate here. Linear alternators are similar in design to linear motors, but one does not simply reverse the cycle to swap one into the other — there are certain control functions that need to be imposed on how the coils are energized in a motor. However that does not mean a multipurpose linear electric power device could not be constructed.
While this concept would not immediately be in the same class as the 740-hp electric wheel hub motor designs, it could still have its niche. There is no reason the engine couldn’t be scaled up to a larger footprint and bolder performance.





You Would Also Love Reading......

Popular Posts

JOIN US