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Climate Change

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  Climate Change – Rise of CO2 Air bubble trapped in ice enabled humans to know about the level of CO2 400,000 years ago, it was around 200 ppm. CO2 concentration in atmosphere increases seasonally in a year with lower ppm found in September and highest in May.   Since 1958, Mauna Loa Observatory in Hawaii Island is monitoring and collecting data of CO2 concentration in atmosphere, this site is considered best for measuring CO2 by NOAA i.e. National Oceanic and Atmospheric Administration, USA because "The undisturbed air, remote location, and minimal influence of vegetation and human activity at MLO are ideal for monitoring constituents in the atmosphere that can cause climate change."   Above graph from NASA shows concentration of CO2 nearly 800,000 years ago and it was around 185 ppm, from the graph we can see that CO2 level increases and decreases periodically but on average till pre industrial era it remain almost same and below 300 ppm. At that time CO2 emissio...
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WIreless Electricity

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According to law of conservation of energy – “Energy neither be created, nor destroyed”, it can only change from one form to another. In this article I will talk about only “electricity energy”. In its entire journey starting from Benjamin Franklin famous kite experiment in 1752 to 1831 when Michael Faraday discovered the principle of electricity generation and till now this form of energy helped world’s economy to transform from developing to developed. Still for power generation we use Faraday principle of induced current but in its 268 years journey electricity evolved from generation through hydro, steam to solar and wind. Previous decade of electricity industry belongs to the renewables, a study by Navigant Research found that this advanced form of energy which consists of Solar power, wind power, Gas turbines and building efficiency sectors is now worth of $1.3 trillion globally.   As world is fighting with climate change so next decade will also focus on renewables en...
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Electric Automobile – Why China Ahead of India

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“Hindi Chini Bhai Bhai” – “Indians and Chinese are brothers”, this is a common quote we can hear around us whenever Indians and Chinese meet. If we compare China with India in development, technology, manufacturing and innovations it looks like that we are too far from our eastern neighbor. In 1980 per capita GDP of China was 194.80 USD and that of India was 263.84 USD, means we were ahead of China in 1980 but from there onwards China grew with 10% till 2010 and pushed us behind. Similarly if we compare Electric Automobile Industry of China and India we can analyze why China is always ahead of India. Here is small timeline of Chinese Electric Automobile Industry and India’s Electric Automobile Industry: China ·        In 1990s China started developing two wheeler electric bikes. In 1998 only 56000 electric bikes and scooters were sold which boosted to 21 million in 2008 mentioned in report on “Comparison of Common Urban Travel modes in China”....
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Hydrogen – future fuel?

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When I was in school, I used to hate Chemistry just because of periodic table. We cannot learn each element of periodic table, but we all know first element of periodic table, HYDROGEN. Do we really know the power of first element? Hydrogen having just 1 electron can power thousands of electrons. Having atomic number 1 and molecular mass of 1 g it has the power to become number 1 fuel in future. Hydrogen, an abundant source is present around us in form of hydrocarbon and water but still it’s difficult to extract hydrogen, ac cording to the United States Department of Energy Office of Power, the most difficult problem in hydrogen production is the energy needed to produce it, “Hydrogen requires at least twice as much energy as electricity twice the tonnage of coal, twice the number of nuclear plants, or twice the field of PV panels to perform an equivalent unit of work”. Means to produce the hydrogen we need more energy for which is using conventional sources. There are many tech...
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We need EVs OR EVs need us?

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India among top 5 fastest growing economy and in aim to become $ 5 trillion economy till 2025 is boosting each and every sector to reach the target. Tax rate down, “Make in India “campaign and various initiatives are taken to reach the target.   But what about EVs sector, Are we doing enough to boost the sector? In 2018 as per statistics around 4.4 million motor vehicles sold in country, and 56 thousand EVs sold in same year.   So by analyzing this data my mind ask me, do we need EVs or EVs need us? Why we need EVs? In recent years India has emerged as the most polluted countries in the world, in top 10 most polluted cities, we have 7 cities of ours. In this list one of our competitor is our neighbor Pakistan which has 2 cities, here also we are far ahead of them. Winter season is coming up and again we will see Delhi as gas chamber. As per the Source Apportionment study carried out by IIT Kanpur, transport sector contributes 20% towards air pollution in Delhi. It...
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