Scientists Develop Solar Receiver Tube Technology for Industrial Process Heat
Scientists at the International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Hyderabad (Telangana), developed a cost-effective 'solar receiver tube technology' that absorbs solar radiation and converts it into heat for the targeted applications, especially in industries.
ARCI has filed 2 patent applications for this technology, and also inked an MoU (Memorandum of understanding) with Greenera Energy India Private Limited for technology transfer, that aims to develop the solar receiver tube for wider market absorption.
The solar receiver tube, which has a high corrosion resistance, functions based on the Concentrating Solar Thermal (CST),that provides a better solution to handle the demands on industrial process heat (≤ 250 °C).
The receiver tube has the capability of 93% absorption, 14% emittance and has better thermal stability as well. The trial of absorber coating has been made successfully for heat gain and heat loss studies in a testing facility established at ARCI.
Mar 13, 2020
Wasp-76b: The Exotic Inferno Planet Where it Rains Iron
Astronomers have observed a distant planet where it probably rains iron.
It sounds like a science fiction movie, but this is the nature of some of the extreme worlds we're now discovering.
Wasp-76b, as it's known, orbits so close in to its host star, its dayside temperatures exceed 2,400C - hot enough to vaporise metals.
The planet's night side, on the other hand, is 1,000 degrees cooler, allowing those metals to condense and rain out.
It's a bizarre environment, according to Dr. David Ehrenreich from the University of Geneva.
"Imagine instead of a drizzle of water droplets, you have iron droplets splashing down.
The Swiss researcher and colleagues have published their findings on this strange place in the journal Nature.
The team describes how it used the new Espresso instrument at the European Southern Observatory's Very Large Telescope in Chile to study the chemistry of Wasp-76b in fine detail.
Mar 11, 2020
New Type of Pulsating Star Discovered After 40-Year Search
A star that pulses on just one side has been predicted in theory. But it took two simultaneous discoveries on opposite sides of our planet to uncover the first such example of a 'one-sided pulsator.
A star that pulsates on just one side has been discovered in the Milky Way about 1500 light-years from Earth. It is the first of its kind to be found and scientists expect to find many more similar systems as technology to listen inside the beating hearts of stars improves.
Stars like this are usually fairly rich with metals — but this is metal poor, making it a rare type of hot star.
Mar 07, 2020
SpaceX Announces Partnership to Send Tourists to ISS
The first fully private mission to the International Space Station (ISS) is taking shape as soon as next year (2021) under a deal involving NASA, SpaceX and a Texas-based company that will sell the mission.
Axiom Space said that it has signed an agreement with Elon Musk's Space Exploration Technologies for a flight of four tourists to the space station, possibly sometime late next year.
The initial trip to the ISS would last at least eight days. Axiom said that it is targeting two flights annually.
Mar 06, 2020
NASA's 2020 Mars Rover Now Has an Official Name
NASA announced the name of its next Mars rover: Perseverance.
It will be the fifth exploratory vehicle on the Red Planet following in the tire tracks of the similarly augustly titled Sojourner, Spirit, Opportunity, and Curiosity.
The name was announced at an event at Lake Braddock Secondary School in Burke, Virginia, to congratulate Alex Mather, the seventh grade student who picked it.
IIT-M Develops AI-powered Drones to Counter Rogue Drones
Institute of Technology, Madras, claimed to have developed an AI-powered drone to counter rogue drones (unregulated unmanned aerial vehicles) ensuring safety at vital locations.
The AI-powered system would be an assistance to law enforcement agencies, security services, armed forces in order to secure air space over critical civilian and military installations by rogue drones.
The drones can hack into the GPS navigation system of the rogue drones forcing it to change its flight path or make a safe landing.
The current prototype is equipped to detect and track objects visually, precisely land. The next step will be to conduct exhaustive tests on the system for and ensure its reliability to cater wide range of missions.
The system is designed by department of aerospace engineering, final year student Vasu Gupta, project associate Rishabh Vashistha. The team is mentored by Ranjith Mohan.
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