Cow dung rocket engine successfully tested II अब गाय के गोबर से रॉकेट उड़ेगा

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Cow dung rocket engine successfully tested II अब गाय के गोबर से रॉकेट उड़ेगा

Japanese startup test a rocket engine that will run on cow-dung methane
The static fire test successfully ignited the engine for 10 seconds, generating a powerful blue flame. This achievement follows the European Space Agency's own development of a cow dung-fueled rocket engine, but Interstellar Technologies is the first private company to do so.
The rocket engine, dubbed Zero, was kickstarted in a 10-second “static fire test” in Japan’s Hokkaido Spaceport, the startup Interstellar Technologies Inc. (IST) said in a statement.
What is Zero?
Zero – a small satellite launch vehicle – is powered by liquid biomethane, or LBM, derived from ”livestock manure” that is sourced from Hokkaido’s dairy farms.
The latest milestone marks a “world-first” test of LBM as a rocket engine fuel for a private space company following the success of the European Space Agency’s (ESA) development of a rocket engine using the propellant, the company noted.
Zero is currently scheduled to fly for the first time in 2025. It will be 105 feet (32 meters) long with a 7.5-foot (2.3 m) diameter, making it larger than Rocket Lab's Electron vehicle (which is 59 feet, or 18 m, tall). Zero will be able to lift around 1,760 pounds (800 kilograms) to low Earth orbit and will launch from Hokkaido Spaceport.
Why LBM?
A growing number of studies point to the disadvantages of conventionally used rocket fuel, sparking concerns about the release of soot and other pollutants and greenhouse gases from burning propellants.
Research has also raised concerns about methane from belching cattle and other livestock contributing to global warming and climate change.
By using LBM, IST hopes to make the majority of rocket fuel sustainable, contributing to climate change mitigation.
Liquid methane also has several advantages over conventionally used fuel, including its performance, ease of handling, availability, and environmental impact, experts say. This has led to a demand for high-purity methane – free of impurities – in rocket propellants.
The latest test centered around the conversion of biogas from livestock manure in the Hokkaido Tokachi area into LBM, which researchers claim is a sustainable alternative to liquid natural gas (LNG).
Since methane is a potent greenhouse gas it poses a challenge in global warming due to its emissions from cattle. Odor and water pollution from livestock manure are also societal concerns.
LBM for the test was produced by separating and refining methane – the main component of biogas – and subsequently liquefying it at about -160°C, the company said.
Interstellar claims to be the first commercial company in Asia to reach space with a liquid propellant rocket, using its MOMO-F3 suborbital launcher.
China's commercial firms Landspace and Space Pioneer went one better this year, achieving orbit with their respective Zhuque-2 methane-fueled and Tianlong-2 kerosene-fueled rockets.
Zhuque-2 was the first methane-powered rocket to reach orbit. But much larger rockets using methane — SpaceX's Starship and ULA's Vulcan — could have launches within the next month.
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