Ad Here  
February
March
April
May
June
July
 
 
SGRI – a global research centre for building materials Chennai, the noisiest city Outlays and outcome – the long gap Prithika Yashini takes charge... 60 years of cultural and economic ties Coimbatore backs up for Chennai A skinny affair Black outs will be knocked out A budget that butted into deficit Hey Chitti! please take my order Must visit of 2014 Million landmark and Rs. 200 crore influx by Yamaha Yes, you are safe! City Corner-June Car-free Bessy Chennai to Bengaluru as quick as pizza delivery Apollo targets a third of CV tyre market The auto gets a remake India’s first 3D Museum Overflowing garbage Cricket comes calling to Chennai Paranjoy on crony capitalism Chennai teachers rank low Raj Bhavan opened the gates for public Mexico opens Consulate in Chennai Reality Check Chennai Silks in flames Safe Trac-keeps track on your safety Metro chugs through the city Missing, but not missing the top spot Chennaites lose 7 crore to debit card frauds Need for an integrated approach to medicine Google street view’s India competitor Ennore Port excels This dabba has a cure for all your ailments Know the start-ups in the city Building highs and lows Working space for women by woman Engineering colleges lose lustre International conference on saving energy, environment He made Ranganathan Street so crowded... North Chennai booms Education a cause of concern Murugappas-focus on consolidation The sweet killer Pocket Therapist finds mention in Forbes A praiseworthy peer recognition Thrills for the holiday season Green energy, not really green? When Chennai became Venice Doing business is not so easy in Chennai City Corner Meters return to the metro Aviation sector to grow three times... Colourful welcome at the Saidapet station The 20-year itch of Hindujas ends 377 yet young Maruti Suzuki wins NIQR award India’s first online-only bicycle brand Read before you buy... Force Motors’ two new SUVs A feast for book worms Water woes State VAT leads to inflation: a study Kollywood’s Mahabharatha Star studded city The sunshine and the shadow side of this digital era Medical miracle! CMRL takes off till airport Tambaram tracks…. From trash land to tourist spot Water wars begin Chennai gets its Imax Is Chennai now the accident capital? The worst is yet to come Vanakkam Chennaiyin FC The underground don zips through City Corner K7’s Entrepreneurial Odyssey Book your water tanker Realty bytes It’s so cool! Keep in touch, anytime anywhere When the crowd will miss the roar Indian of the Year Yamaha in the news How to roast 45 human beings alive I know nothing else but cinema... Nilam threatens the city Bewailing monsoons the new fad TTV stumps all When Marina became the Tahrir Square The curious case of Evgenii Berdnikov A new technique to treat dry sewage Boozing and driving Chennai soon to get an Aerospace Park Planning the right energy City Corner - Chennai Online approval of layout plans Technology handshakes with sanitation Two friends trigger a change Chennai Metro looking for revival Chevrolet Sail U-VA Launched A sweet marketing splash by Pattappas Arnold visits Chennai Indian media-operators of democracy Perplexing communications It is not only your noodle... Technologists to rescue Sathyabhamasat propels ahead Hawker’s paradise gets a permanent place Talk your way and land in a job Chennai airport to become solar-powered Metro mania An industry institution link… Tamil Nadu Premier League launched The sweet tooth of the city Frontier Mediville attracts Japanese investments Self-sufficiency in dredging... Metro chugs the green way Presto! Bravo!
 
Black outs will be knocked out

With summer fast approaching, power black outs loom in the horizon. The electrical man, Ashok Jhunjhunwala, the head of the department of Electricals at IIT-Madras enthralled the audience with a rather simple solution. “All our appliances use only DC power. Since our input is AC power, we lose about 20 per cent to 50 per cent in conversion of DC to AC power. In the future, refrigerators, air conditioners and washing machines will all run on DC power,” said Jhunjhunwala at the Extra Mural Lecture series.

    The research team at IIT led by Jhunjhunwala has designed a simple switching mechanism, which when senses a voltage  drop in grid supply, will automatically switch the input power to DC mode. With this 10 per cent DC power, 2 fans, light and a mobile charger can be powered comfortably. An additional 50 watt solar power generator at the roof top will comfortably power the house.

    The Extra Mural Lecture series which is now on its 30th year, is a yearlong event that brings people from different walks of life to address the students. This is now being extended to other colleges in and around

the city. The average power consumption by DC fans and lights is less than half the power consumed by AC devices. Jhunjhunwala suggested a 38 volt DC line at homes is absolutely safe and shock free.

He stated that solar power panels of 50 watt that cost around Rs 25,000, if erected on each roof top, can meet the demand of the house and the DC power generated by the solar panel, if directly used without being converted to AC current, can save a lot of energy. An estimate made by the researchers point out that all households use roof top solar power, it will off set a load of 190,000 GWH per year which is almost equal to the annual total domestic consumption.

Jhunjhunwala anticipates India would become free from power cuts in 5 years and in next 15 years 50 per cent of power could be from solar.

Author :
Reported On :
Sector :
Shoulder :
RELATED NEWS
ABOUT IE
IE, the business magazine from south was launched in 1968 and pioneered business journalism in south. Through the 45 years IE has been focusing on well-presented and well-researched articles. When giants in the industry stumbled to keep pace with the digital revolution, IE stayed affixed embracing technology.
Read more
 
PRIVACY POLICY
Economist Communications Ltd is committed to ensuring that your privacy is protected.
Read more
TERMS AND CONDITIONS
You agree that your use of this Website and the purchase of the magazine will be governed by these terms and conditions.
Read more
 
CONTACT US
S-15, Industrial Estate,
Guindy,
Chennai - 600 032.
PHONE: +91 44 22501236
EMAIL: indecom1968@gmail.com