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Fridge technology helps man learn about creation

A CRYOGENIC refrigeration system may help mankind learn more about the creation of the universe.
The Herschel space telescope launched last week with its companion spacecraft Planck will measure radiation from the 'Big Bang', providing scientists with information about planet and star formation.

The Herschel telescope, which has a diameter of 11.5ft, is said to be the biggest telescope ever sent into space. The primary detectors on both telescopes have to be kept as cold as possible to be able to obtain high-resolution data while they make their observations.

Herschel carries what is basically a vacuum flask or cryostat, filled with more than 2,000 litres of liquid helium supercooled to 1.65K, ie just 1.65°C above absolute zero.

Two of the instruments also have built-in coolers to bring the operating temperatures of the detectors down to -272.7ºC, just a third of a degree above absolute zero.

The Planck spacecraft incorporates a passive cooling system using radiative shields facing deep space to achieve temperatures down to about 60K before active cryogenic cooling systems bring the detector temperatures down as low as tenth of a degree above absolute zero.

The Herschel telescope and Planck will take several weeks to reach their separate orbits, nearly a million miles from Earth.

Coronavirus industry update

UPDATED 22 April: In response to the Coronavirus pandemic, manufacturers, wholesalers and distributors are issuing statements regarding their operations as the situation evolves. The most up to date information from each company is listed below and ...

  25-Mar-2020

Carrier offers new CPDs on chiller efficiency

? Carrier is offering three new Continuous Professional Development (CPD) courses focusing on chiller efficiency and compliance in relation to the latest European and UK regulations....

  04-Aug-2020

Fridge Freezer Direct Introduces J & E Hall's range of Cellar Cooling

Reliable and energy efficient, the JCC range of cellar coolers are designed to be used in wine and beer cellars above or below ground.
  27-Jul-2020
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