BHEL Current Affairs - 2019

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PM Modi Flags-off First Ever Diesel-to-Electric Converted Locomotive

Prime Minister Narendra Modi flagged off the first ever diesel-to-electric converted locomotive at the Diesel Locomotive Works (DLW) at Varanasi, Uttar Pradesh.

Diesel-to-Electric Converted Locomotive

  • The 10,000HP freight locomotive was converted from two units of old diesel locomotives of 2600 HP each with indigenous technology.
  • The conversion was achieved in record time with the help of engineers from Research Designs and Standards Organisation (RDSO), Chittaranjan Locomotive Works(CLW), and BHEL.
  • The conversion has proved to be cost effective as it requires half of the rehabilitation cost of old locos and it is also environment-friendly with enhanced traction power to double the average speed of goods train.

DLW has developed a new prototype electric locomotive converted from diesel locomotive as part of the Indian Railways Mission 100 per cent electrification and de-carbonization agenda.

Indian Railways Mission 100 per cent Electrification

The Indian Railways has undertaken Mission 100 per cent electrification to electrify the last leg of about 13,675 Km railway tracks at a cost of Rs 12,134 crore. The 100 per cent electrification will electrify all broad gauge lines of Indian Railways and it will make Indian Railways the largest electrified rail network in the world.

Benefits of 100 per cent Electrification

  • Reduced dependence on imported diesel.
  • Enhanced line capacity and higher haulage capacity.
  • Seamless train operations ensuring better speed.
  • Improved signalling system for enhanced safety.
  • Direct employment generation during construction for nearly 20.4 crore man days.

100 per cent electrification also provides environmental benefits like reduced environment cost per tonne-kilometre, 24% reduction in carbon dioxide emissions by 2027-2028 and a reduction of nearly 2.83 billion litres of fossil fuel consumption per annum.

Month: Categories: NationalUPSC

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ISRO–BHEL tie up for Production of Space Grade Lithium-Ion Cells

Indian Space Research Organisation (ISRO) has entered into Technology Transfer Agreement (TTA) with Bharat Heavy Electricals Limited (BHEL) to transfer technology for manufacturing space grade Lithium-Ion (Li-Ion) cells.

The technology transfer will enable BHEL to produce space grade Li-Ion cells which can meet country’s space programme requirements. It can also be adopted to cater Li-Ion cell requirement for other national needs.

Key Facts

The ISRO uses Li-Ion batteries as power sources for satellite and launch vehicle applications due to their high energy density, reliability and long cycle life. ISRO’s Vikram Sarabhai Space Centre (VSSC) at Thiruvananthapuram has successfully developed technology to produce space grade Li-ion cell. It also has demonstrated performance of cell under various testing conditions and established its cycle life characteristics in accelerated mode. These Li-Ion cells are currently being used for various satellite and launch vehicle applications.

Li-Ion battery

Lithium-ion battery or Li-ion battery is type of rechargeable battery that contains several cells. Each cell consists of cathode, anode and electrolyte, a separator between electrodes and current collectors. In it, lithium ions move from negative electrode to positive electrode during discharge and back when charging. Li-ion battery use intercalated lithium compound as one electrode material.

Benefits of Lithium-Ion (Li-Ion) battery

The lithium-ion battery is light weighted and is one-third the weight of lead acid batteries. It is nearly 100% efficient in both charging and discharging as compared to lead battery which has 70% efficiency. It completely discharges i.e. 100% as compared to 80% for lead acid.

The rechargeable lithium-ion battery has life cycle of 5000 times or more compared to just 400-500 cycles in lead acid. It also maintains constant voltage throughout the entire discharge cycle whereas voltage in lead acid battery drops consistently throughout its discharge cycle. It is much cleaner technology and is safer for environment as it does not have environmental impact as lead acid battery.

Month: Categories: Science & Technology

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