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He said that three main requirements should be fulfilled to improve the cooling effect. The radiative coolers should not replace the existing PV glass covers, so the natural RC ability of glass can be harnessed to add to the overall cooling gain. There should also be an efficient and quick heat transfer mechanism between the PV module, which is also the heat source, and the RC heat sink. In addition, the RC module should directly face the sky to radiate maximum waste heat into outer space.

The proposed system consists of a PV module and a separate RC module, integrated with a flat plate heat pipe in between. A separate RC module is used along with the existing glass cover on the solar cells and the heat pipe is integrated between the PV and RC modules, providing quick heat transfer. The RC module is then placed on the condensing section of the heat pipe facing the sky.

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✓ Replaced an engine controller.

We’re continuing to conduct integrated tests inside the Vehicle Assembly Building ahead of the Artemis I launch! The team will work to complete all remaining Space Launch System pre-flight diagnostic tests and hardware closeouts in advance of a mid-February rollout for a wet dress rehearsal in late February. NASA will set a target launch date after a successful wet dress rehearsal test.

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India will invest 120 billion rupees ($1.6 billion) to add new lines to transmit electricity from renewable plants as it seeks to draw half of its energy requirement from greener sources by 2030.

Dedicated transmission lines of 10,750 circuit kilometers will be built across seven provinces under the second phase of the so-called green energy corridor project, Information and Broadcasting Minister Anurag Thakur said in New Delhi. The project, approved by Prime Minister Narendra Modi’s cabinet on Thursday, will be completed by 2026 and transmit 20 gigawatts of renewable energy capacity, he said.

India is targeting to build 500 gigawatts of installed power capacity from non-fossil sources by 2030, which would require a transmission network to enable clean electricity to flow from plants to consumers. The new lines will also help integrate renewable energy into the national grid and contribute to long-term energy security, according to the government.

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Nikola Tesla’s vision of the world is about to become reality.

#engineering

Wireless electricity is a 100-year-old dream that just might turn into reality in the coming years. The advent of wireless charging, electric vehicles, 5G, and the need for greater sustainability have led to a push for the development of fully operational wireless transmission technology in different parts of the world.

Continue reading “Tesla Said It Was Possible, Now Wireless Electricity Is Finally Becoming Reality” | >

The world’s first active linear power transfer engine

According to Astron Aerospace, all of this makes the Omega 1 the world’s first engine with an active linear power transfer. “As the Omega 1 engine rotates,” the company says on its website, “all the power is transferred through the single rotating power shaft.” The firm also says the Omega 1 doesn’t require rota seals due to tight tolerances and such high RPMs that there’s not enough time for air to leak.

Astron Aerospace says the Omega 1 “will change the world for the better by providing a new, smaller, more powerful engine while using much less fuel.” The company says its new creation “will produce significantly less greenhouse gasses, while improving torque and power in [an] incredibly small package.”

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HELSINKI — China’s Shijian-21 space debris mitigation satellite has docked with a defunct Chinese satellite to drastically alter its geostationary orbit, demonstrating capabilities only previously exhibited by the United States.

Data and tracking from space monitoring firms show that Shijian-21 has been conducting sophisticated rendezvous and proximity operations (RPO) with other objects in and around the geostationary orbit belt since its launch in October last year.

This activity culminated in Shijian-21 docking with the defunct Beidou-2 G2 navigation satellite and towing it above the crowded belt of geostationary orbit some 36,000 kilometers above the equator.

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I have often mentioned how useful it would be to relocate an asteroid to lunar orbit to serve as a counterweight for a rotovator / skyhook.

Data from NSF’s NOIRLab Show Earth Trojan Asteroid Is the Largest Found The SOAR Telescope, part of NOIRLab’s Cerro Tololo Inter-American Observatory, has helped astronomers refine the size and orbit of the largest known Earth Trojan companion. By scanning the sky very close to the horizon at sunrise, the SOAR Telescope in Chile, part of Cerro-Tololo Inter-American Observatory, a Program of NSF’s NOIRLab, has helped astronomers confirm the existence of only the second-known Earth Trojan asteroid and reveals that it is over a kilometer wide — about three times larger than the first.

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