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Solar power to ward off energy tariff fluctuations in West Bengal

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By NewsGram Staff Writer

Solar energy is the most equipped and organized available source of energy. It does not belong to any single individual but for every living creature. It is also one of the most important non-conventional sources of energy because of its non-polluting element, which also helps in reducing the greenhouse effect. Hence, it is the best form of energy, which can be used when the power tariff is touching the roof.

A government housing complex towering over Dhakuria Lake, Kolkata, is showing the way to have immunity against power tariff fluctuations, as a resident named Avijit Ghosh has decided to fix the problem of high and inconsistent power bills himself.

Ghosh is an energy technologist with Central Glass and Ceramic Research Institute (CGCRI), who conceived the plan and installed the solar power plant fighting against many odds on the rooftop of a housing apartment meant for the scientists of Council of Scientific and Industrial Research (CSIR).

After a year of observation, he was so jubilant with his successful experiment that now he wants to emulate and install it on every rooftop of the city.

Professor Indranil Manna, director IIT-Kanpur, who as the director of CGCRI encouraged Ghosh out of his way, said, “The tariff of power generated from the fossil fuel like coal and petroleum products is bound to go up with the steady depletion of the reserve, which might last another five decades. So, rooftop solar power plant is no more a fancy of a few eccentrics.”  The current director of CGCRI, Kamal Dasgupta, is equally glad by the outcome of the plant.

The authorities are constantly aiming to create the amount of power required by the city. The total estimated power produced by the plant in Kolkata was considered to be around 45,000 KWh in a year, but actual total generation was 52,269 KWh in past one year.  Almost 50,000 units from the total solar power generation were utilized in-campus and additional 2,165 units were sold to the Calcutta Electric Supply Corporation (CESC) at the prevailing rate of the month. The sale and purchase of the power is accorded within the parameters of power purchase agreement, entered into between CSIR-CGCRI & CESC for 25 years.

Development is essential, but the thing that really matters the most is the positive environmental impact that is related to the performance of the plant. Kolkata plant’s contribution to greenhouse gas emission reduction — CO2 emission avoided at Thermal Power Plant’s Generation — is around 86 M.T., which is really impressive.

The water saved at Thermal Power Plant is around 575 Kilolitres. “This is a huge environmental benefit that a solar power plant can engineer,” said Susapta Ghosh, superintendent engineer and Sujoy Roy, an electrical engineer, who also toiled a lot for plant’s fantastic performance.

The main concern over solar power is the initial investment of installing the panels. Yet the cost savings on electrical bills and the positive effect on the environment make it an increasingly attractive alternative for homes and businesses alike.

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NASA Readies Probe to Touch the Sun With ‘Cutting-Edge Heat Shield’

The eight-foot-diameter heat shield will safeguard everything within its umbra, the shadow it casts on the spacecraft, NASA said

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The concept received funding through NASA's Innovative Advanced Concepts programme, which will provide $100,000 for feasibility studies.
The concept received funding through NASA's Innovative Advanced Concepts programme, which will provide $100,000 for feasibility studies.. Pixabay

Ahead of its August launch, NASA’s Parker Solar Probe — the mission aiming to get closest to the Sun than ever by any human-made object — has got its “revolutionary” heat shield permanently attached to the spacecraft, the US space agency said.

The probe’s heat shield — called the Thermal Protection System, or TPS — was reinstalled on the spacecraft on June 27, NASA said in a statement on Thursday.

The reinstallation of the heat shield — which was briefly attached to the spacecraft during testing in the autumn of 2017 — marks the first time in months that Parker Solar Probe has been fully integrated.

A mission 60 years in the making, Parker Solar Probe will make a historic journey to the Sun’s corona, a region of the solar atmosphere.

With the help of its heat shield, the spacecraft’s orbit will carry it to within four million miles of the Sun’s fiercely hot surface, where it will collect data about the inner workings of the corona.

NASA-heat-shield
Representational image. (IANS)

The eight-foot-diameter heat shield will safeguard everything within its umbra, the shadow it casts on the spacecraft, NASA said.

At Parker Solar Probe’s closest approach to the Sun, temperatures on the heat shield will reach nearly 1,371 degrees Celsius, but the spacecraft and its instruments will be kept at a relatively comfortable temperature of about 29.4 degrees Celsius.

The heat shield is made of two panels of superheated carbon-carbon composite sandwiching a lightweight 4.5-inch-thick carbon foam core.

Also Read: NASA to Soon Start Testing ‘quiet’ Supersonic Flights over Texas

The Sun-facing side of the heat shield is also sprayed with a specially formulated white coating to reflect as much of the Sun’s energy away from the spacecraft as possible.

Because Parker Solar Probe travels so fast — 69,2018 km per hour at its closest approach to the Sun, fast enough to travel from Philadelphia to Washington, DC, in about one second — the shield and spacecraft have to be light to achieve the needed orbit.

The heat shield itself weighs only about 72.5 kg, NASA said. (IANS)