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Red Hill Underground Fuel Storage Facility
Society: ASCEMain Category: CivilSub Category: BuildingsEra: 1940-1949DateCreated: 1943Icarus WayAieState: HIZip: 96701Country: USAWebsite: http://www.asce.org/Project/Red-Hill-Underground-Fuel-Storage-Facility/Creator: U.S. Navy, Goodrich Tire Company

Conceived in the early years of World War II as a plan to bury four fuel containers horizontally in a hillside at the U.S. Navy facility at Pearl Harbor, Hawaii, the Red Hill Underground Fuel Storage Facility ultimately encompassed the design and construction of 20 vertical storage tanks - each large enough to contain a 20-story building - buried in the volcanic hillside and connected by tunnels to a harbor-side pumping station more than two-and-a-half miles away.

YearAdded:
1994
Image Credit: Courtesy Wikicommons/Leslie Nelson (CC BY-SA 4.0)Image Caption: Above-ground fuel storage tanks at Pearl Harbor prior to the construction of Red Hill.Era_date_from: 1943
Ljungstrom Air Preheater
Society: ASMEMain Category: MechanicalSub Category: Manufacturing, Mechanical Power Production - SteamEra: 1920-1929DateCreated: 1920Tekniska MuseetStockholmCountry: SwedenWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/manufacturing---2/-185-ljungstrom-air-preheater-%281920%29, https://www.asme.org/getmedia/c7cf3d83-508f-4946-b476-9399c390fc83/185-Ljungstrom-Air-Preheater.aspxCreator: Ljungstrom, Fredrik

The Ljungstrom air preheater is a regenerative heat exchanger, invented in the 1920s and soon used throughout the world. Dr. Fredrik Ljungstrom, then technical director at Aktiebolaget Ljunstrom Angturbin, invented it for preheating combustion air in boiler plants, but the use has expanded to include energy recovery in combination with the removal of oxides of sulfur and nitrogen.

YearAdded:
1995
Image Credit: Public DomainImage Caption: Ljungstrom Air PreheaterEra_date_from: 1920
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