spot cooling jet - определение. Что такое spot cooling jet
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Что (кто) такое spot cooling jet - определение

COOLING THROUGH A RADIATIVE TRANSFER OF ENERGY
Radiational cooling; Radiative Cooling; Radiation cooling; Nocturnal cooling
  • Passive radiative cooling technologies use the [[infrared window]] of 8–13 µm to radiate heat into outer space and impede solar absorption.
  • radiation]] intensity, from clouds, atmosphere and surface.
  • Different roof materials absorb more or less heat. A higher roof [[albedo]], or the whiter a roof, the higher its solar reflectance and heat emittance, which can reduce energy use and costs.
Найдено результатов: 1202
Passive daytime radiative cooling         
MANAGEMENT STRATEGY FOR GLOBAL WARMING
Passive radiative cooling; Daytime passive radiative cooling; Daytime radiative cooling
Passive daytime radiative cooling (PDRC), passive radiative cooling (PRC), or terrestrial radiative cooling is a solar radiation management strategy that has been proposed as a solution to global warming which involves the mass installation of sky-facing surfaces on Earth that reflect heat to outer space to reverse local and global temperature increases while requiring zero energy consumption or pollution. Because all materials in nature absorb more heat during the day than at night, PDRC surfaces are designed to maximize the efficiency of both solar reflectance (in 0.
Jet (fluid)         
  • M87]], as seen by the [[Hubble Space Telescope]].
STREAM OF FLUID PROJECTED INTO THE SURROUNDING MEDIUM
Jet (gas)
A jet is a stream of fluid that is projected into a surrounding medium, usually from some kind of a nozzle, aperture or orifice. Jets can travel long distances without dissipating.
Immersion cooling         
  • border
  • Network router and smart-phone immersed in synthetic single-phase, liquid immersion coolant
  • 600x600px
  • Example of server immersion cooling of one server
IT COOLING PRACTICE
User:Dpope83/Server Immersion Cooling; Draft:Server Immersion Cooling; Server Immersion Cooling; Server immersion cooling; Immersion Cooling
Immersion cooling is a thermal management technique, often applied as an IT cooling practice, by which electronic devices and IT components, including complete servers and storage devices, are submerged in a thermally conductive but electrically insulating dielectric liquid or coolant. Heat is removed from the system by circulating relatively cold liquid into direct contact with hot components, then circulating the now heated liquid through cool heat exchangers.
Jet aircraft         
  • Boeing 707
  • SST]] providing service from 1976 to 2003
  • km/h}}
  • The [[Heinkel He 178]] was the first aircraft to fly on turbojet power, in August 1939
  • Dependence of the propulsive efficiency (<math>\eta_p</math>) upon the vehicle speed/exhaust speed ratio (v/c) for rocket and jet engines
  • The Sikorsky S-69 was a [[compound helicopter]] with auxiliary turbojets
AIRCRAFT CLASS POWERED BY JET PROPULSION ENGINES
Jet plane; Jet airplane; Jetplane; Jet airplanes; Jet Aircraft; Jet travel; Jet flight; Jet aeroplane; Jet Airplane; Jetplanes; Jet-propelled aircraft; Jet-aeroplane; Jet-airplane; Jet-aircraft; Jet-plane; Jet-powered aircraft
A jet aircraft (or simply jet) is an aircraft (nearly always a fixed-wing aircraft) propelled by jet engines.
jet aircraft         
  • Boeing 707
  • SST]] providing service from 1976 to 2003
  • km/h}}
  • The [[Heinkel He 178]] was the first aircraft to fly on turbojet power, in August 1939
  • Dependence of the propulsive efficiency (<math>\eta_p</math>) upon the vehicle speed/exhaust speed ratio (v/c) for rocket and jet engines
  • The Sikorsky S-69 was a [[compound helicopter]] with auxiliary turbojets
AIRCRAFT CLASS POWERED BY JET PROPULSION ENGINES
Jet plane; Jet airplane; Jetplane; Jet airplanes; Jet Aircraft; Jet travel; Jet flight; Jet aeroplane; Jet Airplane; Jetplanes; Jet-propelled aircraft; Jet-aeroplane; Jet-airplane; Jet-aircraft; Jet-plane; Jet-powered aircraft
(jet aircraft)
A jet aircraft is an aircraft that is powered by one or more jet engines.
N-COUNT
Spot (music festival)         
ANNUAL MUSIC FESTIVAL IN AARHUS, DENMARK
Spot festival; Spot music festival
SPOT is an annual music festival in the city of Aarhus, Denmark, showcasing up-and-coming Danish and Scandinavian talent. Close to two hundred artists and bands from most genres of contemporary popular music - such as rock, hip hop and electronic music - play various stages across town, centered around the Academy of Music and concert halls of Musikhuset.
jet engine         
  • Jet engine during take-off showing visible hot exhaust ([[Germanwings]] [[Airbus A319]])
  • U.S. Air Force [[F-15E Strike Eagle]]s
  • Typical combustion efficiency of an aircraft gas turbine over the operational range.
  • Typical combustion stability limits of an aircraft gas turbine.
  • Electronic centralised aircraft monitor (ECAM)]] Display
  • Propulsive efficiency comparison for various gas turbine engine configurations
  • Allies']] only jet aircraft to achieve combat operations during World War II.
  • JT9D]] turbofan jet engine installed on a [[Boeing 747]] aircraft.
  • Turbojet engine
  • A cutaway of the Junkers Jumo 004 engine
  • [[Heinkel He 178]], the world's first aircraft to fly purely on turbojet power
  • Dependence of propulsion efficiency (η) upon the vehicle speed/exhaust velocity ratio (v/v<sub>e</sub>) for air-breathing jet and rocket engines.
  • A pump jet schematic.
  • Rocket engine propulsion
  • [[Specific impulse]] as a function of speed for different jet types with kerosene fuel (hydrogen I<sub>sp</sub> would be about twice as high). Although efficiency plummets with speed, greater distances are covered. Efficiency per unit distance (per km or mile) is roughly independent of speed for jet engines as a group; however, airframes become inefficient at supersonic speeds.
  • Schematic diagram illustrating the operation of a low-bypass turbofan engine.
  • The [[Whittle W.2]]/700 engine flew in the [[Gloster E.28/39]], the first British aircraft to fly with a turbojet engine, and the [[Gloster Meteor]]
REACTION ENGINE WHICH GENERATES THRUST BY JET PROPULSION
Jet engines; Jet turbine; Jet engined; Aircraft jet engine; Jet-engine; Jet motor; Jet thrust; Jet Engine; Lubrication system of jet engines; Lubrication System of Jet Engines; Jet propulsion engine; Jet engine nozzle; Duct jet engine; Jet engines and volcanic ash; Jetmotor; Energy efficiency of aircraft jet engines; Jet aviation
(jet engines)
A jet engine is an engine in which hot air and gases are forced out at the back. Jet engines are used for most modern aircraft.
N-COUNT
Arago spot         
  • Photo of the Arago spot in a shadow of a 5.8&nbsp;mm circular obstacle
  • 1=R = 5 µm = 10λ}}.
  • Formation of the Arago spot (select "WebM source" for good quality)
BRIGHT POINT THAT APPEARS AT THE CENTER OF A CIRCULAR OBJECT'S SHADOW DUE TO FRESNEL DIFFRACTION
Poisson spot; Poisson's Spot; Poisson's spot; Spot of Arago; Spot of arago; Poisson Spot; Poisson’s spot; Poisson's bright spot; Poisson bright spot; Fresnel bright spot
In optics, the Arago spot, Poisson spot, or Fresnel spot"Although this phenomenon is often called Poisson's spot, Poisson probably was not happy to have seen it because it supported the wave model of light. The spot is sometimes called Fresnel's spot because it is a direct consequence of his work, and Arago's spot because Arago devised the experiment that confirmed its existence.
Astrophysical jet         
  • A view of the [[M87*]] supermassive black hole in polarised light, taken by the [[Event Horizon Telescope]]. The direction of lines atop the total intensity mark the polarization orientation, from which the structure of the magnetic field around the black hole can be determined.
  • The pulsar IGR J11014-6103 with supernova remnant origin, nebula and jet
  • [[Elliptical galaxy M87]] emitting a relativistic jet, as seen by the [[Hubble Space Telescope]]
BEAM OF IONIZED MATTER FLOWING ALONG THE AXIS OF A ROTATING ASTRONOMICAL OBJECT
Relativistic jet; Galactic jet; Extragalactic jet; Galactic jets; Stellar jet; Relativistic jets; Radio jets; Galaxy jet; Jet (astronomy); Polar jets; Cosmic jet; Polar jet; Extragalatic jet; Astrophysical jets
An astrophysical jet is an astronomical phenomenon where outflows of ionised matter are emitted as an extended beam along the axis of rotation.
Jet engine         
  • Jet engine during take-off showing visible hot exhaust ([[Germanwings]] [[Airbus A319]])
  • U.S. Air Force [[F-15E Strike Eagle]]s
  • Typical combustion efficiency of an aircraft gas turbine over the operational range.
  • Typical combustion stability limits of an aircraft gas turbine.
  • Electronic centralised aircraft monitor (ECAM)]] Display
  • Propulsive efficiency comparison for various gas turbine engine configurations
  • Allies']] only jet aircraft to achieve combat operations during World War II.
  • JT9D]] turbofan jet engine installed on a [[Boeing 747]] aircraft.
  • Turbojet engine
  • A cutaway of the Junkers Jumo 004 engine
  • [[Heinkel He 178]], the world's first aircraft to fly purely on turbojet power
  • Dependence of propulsion efficiency (η) upon the vehicle speed/exhaust velocity ratio (v/v<sub>e</sub>) for air-breathing jet and rocket engines.
  • A pump jet schematic.
  • Rocket engine propulsion
  • [[Specific impulse]] as a function of speed for different jet types with kerosene fuel (hydrogen I<sub>sp</sub> would be about twice as high). Although efficiency plummets with speed, greater distances are covered. Efficiency per unit distance (per km or mile) is roughly independent of speed for jet engines as a group; however, airframes become inefficient at supersonic speeds.
  • Schematic diagram illustrating the operation of a low-bypass turbofan engine.
  • The [[Whittle W.2]]/700 engine flew in the [[Gloster E.28/39]], the first British aircraft to fly with a turbojet engine, and the [[Gloster Meteor]]
REACTION ENGINE WHICH GENERATES THRUST BY JET PROPULSION
Jet engines; Jet turbine; Jet engined; Aircraft jet engine; Jet-engine; Jet motor; Jet thrust; Jet Engine; Lubrication system of jet engines; Lubrication System of Jet Engines; Jet propulsion engine; Jet engine nozzle; Duct jet engine; Jet engines and volcanic ash; Jetmotor; Energy efficiency of aircraft jet engines; Jet aviation
A jet engine is a type of reaction engine discharging a fast-moving jet that generates thrust by jet propulsion. While this broad definition can include rocket, water jet, and hybrid propulsion, the term typically refers to an internal combustion airbreathing jet engine such as a turbojet, turbofan, ramjet, or pulse jet.

Википедия

Radiative cooling

In the study of heat transfer, radiative cooling is the process by which a body loses heat by thermal radiation. As Planck's law describes, every physical body spontaneously and continuously emits electromagnetic radiation.

Radiative cooling has been applied in various contexts throughout human history, including ice making in India and Iran, heat shields for spacecraft, and in architecture. In 2014, a scientific breakthrough in the use of photonic metamaterials made daytime radiative cooling possible. It has since been proposed as a strategy to mitigate local and global warming caused by greenhouse gas emissions known as passive daytime radiative cooling.