Reaction Pre-cooled Engines could deliver reusable hypersonic planes by 2025

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Reaction Engines of the UK could be part of a winning group of bidders for open-ended hypersonic weapons development.

They have proven an innovative pre-cooling system which does not require the development of new materials to handle the heat of hypersonic flight speeds.

The US Air Force Research Labs are already working with them. They would need to partner with US companies like Lockheed or Boeing to get the big military contract.

The pre-coolers are made from thousands of thin-walled tubes to provide high surface area to low weight. Each tube is joined to an inlet and outlet manifold, which allows coolant to be injected and removed for the cooling process. We’re the only people in the world with the heat exchanger manufacturing experience to bond thousands of joints in a single operation, and achieve zero leakage. The joints in our pre-cooler modules are hermetically sealed, meaning that the gas which escapes can be measured by the molecule.

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Unique Tree Shaped Air Conditioner

Unique Tree Shaped Air Conditioner

Breath – a tree shaped air conditioner 

Breath, an air conditioner by Ryuichi Tabu, is one unique kind of air conditioner that uses ground heat and the Aquifer Thermal Energy Storage (ATES) system for its functioning. Designed in the shape of a tree, this peerless air conditioner circulates air within a wider range with a double structure that controls airflow in its branches.

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Passive Houses Have No Furnaces But Plenty Of Heat

Passive Houses Have No Furnaces But Plenty Of Heat 

From the outside, there is nothing unusual about the stylish new gray and orange row houses in the Kranichstein District, with wreaths on the doors and Christmas lights twinkling through a freezing drizzle. But these houses are part of a revolution in building design: There are no drafts, no cold tile floors, no snuggling under blankets until the furnace kicks in. There is, in fact, no furnace.

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