CSIR Current Affairs

India’s first biofuel flight was powered by jatropha seeds

India’s first first-ever environment friendly biofuel powered flight between Dehradun and Delhi was propelled by blend of oil from jatropha seeds and aviation turbine fuel. The 43-minute flight was operated by SpiceJet’s Bombardier Q-400 aircraft, with 20 officials and five crew members on board.

Key Facts

This plane had carried blend of 25% of bio jet fuel (derived from jatropha seeds) and 75% of aviation turbine fuel (ATF) in one of the two engines of plane, while other carried only ATF. This flight was technological demonstration that bio jet fuel can be used in flights. International standards permit a blend rate of up to 50% biofuel with ATF. The blend of bio jet fuel and ATF has potential to reduce fuel costs by 15-20%.

Significance

Bio jet fuel is greenhouse gas (GHG) neutral, carbon neutral, reduces air pollution. Capping its blending with aviation turbine fuel will help to bring down import bill on crude oil. Moreover, commercialization of aviation biofuel promises large-scale employment avenues both in formal and informal sector,

The use of bio jet fuel will help in reducing greenhouse gas (GHG) emissions by about 15% and sulfur oxides (SOx) emissions by over 99%. It is expected to provide indigenous jet fuel supply security. Its usage also offers superior engine performance and reduced maintenance cost for the airline operators.

Jatropha

Jatropha is drought-resistant perennial plant that can grow in marginal or poor soil. It is grows relatively quickly and lives, produces seeds for 50 years. It is found to be growing in many parts of the country, especially in rugged terrain and can survive with minimum inputs and easy to propagate.

It seeds has oil content of 37% which be combusted as fuel without being refined. It burns with clear smoke-free flame. It has been tested successfully as fuel for simple diesel engine. Its oil also acts as insecticide. Moreover, by-products of its seeds like press cake is good organic fertilizer. Jatropha also has medicinal properties and is used for diseases like cancer, piles, snakebite, paralysis, dropsy etc.

Aviation biofuel derived from Jatropha seeds

It was indigenously developed by Council for Scientific and Industrial Research (CSIR) lab based in Dehradun along with Indian Institute of Petroleum (IIP). Its experiment was started in 200 and took nearly eight years to make its use practical.

Month: Categories: Science and Technology Current Affairs - 2018

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CSIR lab to give technology for India’s first indigenous Lithium Ion Battery project

Council of Scientific & Industrial Research (CSIR) lab has signed Memorandum of Agreement (MoA) with RAASI Solar Power Pvt Ltd for transfer of technology for India’s first Lithium Ion (Li-ion) Battery project. The agreement was signed by CSIR’s Central Electro Chemical Research Institute (CECRI), Karaikudi, Tamil Nadu.

Key Facts

CSIR-CECRI has developed indigenous technology of Lithium-ion cells in partnership with other sister CSIR labs. It has secured globally recognised patent for this technology. The indigenous Lithium-ion cells technology has potential to enable cost reduction, coupled with appropriate supply chain and manufacturing technology for mass production. Under the singed MoA, Raasi Group will set up Lithium-ion cells manufacturing facility in Krishnagiri district of Tamil Nadu close to Bangalore.

Li-Ion battery

Lithium-ion battery is type of rechargeable battery that contains several cells. Each cell consists of cathode, anode and electrolyte, 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 Li-Ion battery

It 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. It has life cycle of 5000 times or more compared to just 400-500 cycles in lead acid.

It also maintains constant voltage throughout 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. It can power any electrical application without the need of physical wires-means wireless.

Month: Categories: Science and Technology Current Affairs - 2018

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