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HEAT TRANSFER TECHNOLOGY [5 records]

Record 1 2011-06-17

English

Subject field(s)
  • Freezing and Refrigerating
  • Food Industries
CONT

The freezing system uses a highly effective heat transfer technology for rapid crust-freezing of raw protein-laden products. A low temperature plate filled with recirculating refrigerant begins the freezing process immediately to set the product's shape. With a firm bottom surface, the product has enough integrity to be transferred to a spiral or tunnel freezer where it can be deep frozen to 0°F. Including investment and consumable costs, mechanical freezing can be as low as one-tenth the cost of comparable cryogenic crust-freezing systems.

CONT

The "CASCADE" superCONTACT freezing tunnel (mechanical refrigeration) uses two thin conveyors (throw-away polyethylene film) enabling the individual Quick Freezing of food products, especially if they are wet, fatty or sticky and without any risk of the products sticking together. This new process enables ultra fast freezing in two stages: product surface crust freezing on film conveyors level N° 1, followed by deep core freezing on the lower level film conveyors. These film conveyors slide over refrigerated contact plates constructed for the recirculation of a mechanically refrigerated low temperature refrigerant.

Key term(s)
  • shell freezing

French

Domaine(s)
  • Congélation, surgélation et réfrigération
  • Industrie de l'alimentation
DEF

Congélation ultra rapide de la couche superficielle d'un produit, la volaille par exemple, le processus étant complété par la suite selon un procédé traditionnel.

Spanish

Campo(s) temático(s)
  • Congelación y refrigeración
  • Industria alimentaria
Save record 1

Record 2 2009-03-01

English

Subject field(s)
  • Combustion and Fuels (Fireplaces)
  • Nuclear Fission Reactors
CONT

Fuel Element. MITR-II [Massachusetts Institute of Technology Reactor] fuel consists of fifteen fuel plates in a rhomboid-shaped element. Each fuel plate consists of fuel sandwiched between sides of aluminum cladding, which are finned to increase the heat transfer surface area in a reactor. The uranium fuel is in a uranium-aluminum matrix called cermet.

French

Domaine(s)
  • Combustion et combustibles (Foyers)
  • Réacteurs nucléaires de fission
DEF

Combustible nucléaire, notamment de l'uranium, emprisonné entre des gaines d'aluminium, qui sert à alimenter les réacteurs.

Spanish

Save record 2

Record 3 2003-03-17

English

Subject field(s)
  • Corporate Structure
  • Astronautics
CONT

The Thermal Control and Life Support Division at ESTEC [European Space Research and Technology Centre] undertakes a diverse range of experiments as a provider of services to ESA's [European Space Agency] projects and research programmes. Recent experiments have included : thermal tests of two-phase fluid heat transfer loops; long duration tests of a cryogenic refrigerator; thermal balance and cycling tests of experiment units; tests of environmental control and life support systems(ECLS)...

OBS

The European Space Research and Technology Centre is located in the Netherlands.

French

Domaine(s)
  • Structures de l'entreprise
  • Astronautique

Spanish

Save record 3

Record 4 2000-11-30

English

Subject field(s)
  • Chemical Engineering
  • Water Treatment (Water Supply)
CONT

Seawater desalination... Features Multi-Effect Distillation(MED). Vertical Tube Evaporation(VTE). Concrete Containment Shell. Aluminum Double-fluted Evaporator Tubes. Minimal Feedwater Pretreatment... This innovative seawater desalination technology consists of an enhanced multi-effect distillation process that involves a series of fluted aluminum tube bundles vertically stacked in a concrete vacuum tower. The advantages of the technology are based on the high heat transfer performance of the tube bundles and on the reduced cost of the construction materials.

CONT

In Vertical Tube Evaporation (VTE) the salt water falls through long vertical metal tubes to exchange heat with steam in multiple effects for steam economy.

Key term(s)
  • vertical tube

French

Domaine(s)
  • Génie chimique
  • Traitement des eaux
OBS

Comme exemple de réalisation d'une unité d'évaporation à tubes horizontaux équipée de CMV [...] citons l'usine de la Société Knipping Gmbh à Kierspe près de Düsseldorf. Cette usine réalise le chromage et le zingage de petites pièces pour l'industrie automobile. Afin de pouvoir recycler intégralement l'eau qu'elle utilise pour le rinçage de ses pièces, l'usine dispose de petits évaporateurs dont un évaporateur Entropie avec CMV qui régénère l'eau de rinçage à partir de rinçages morts.

OBS

évaporateur à tubes verticaux.

OBS

Procédés classiques de dessalement des eaux [...] Le procédé dit «des longs tubes verticaux» consiste à vaporiser l'eau de mer dans une série de tubes, la pression et la température diminuant d'un tube à l'autre; chacun des tubes (à l'exception du premier) est chauffé par la vapeur produite dans le précédent.

Key term(s)
  • LTV
  • longs tubes verticaux
  • L.T.V.

Spanish

Save record 4

Record 5 1987-01-23

English

Subject field(s)
  • Heating
  • Heat (Physics)
OBS

Term proposed by a professor of physics at the École Polytechnique of the Université de Montréal.

French

Domaine(s)
  • Chauffage
  • Chaleur (Physique)
DEF

Etude des phénomènes liés aux échanges de chaleur et aux variations de température.

DEF

Partie des sciences physiques, et surtout de la physique appliquée, qui traite de la production, de la transmission et de l'utilisation de la chaleur.

CONT

La thermique étudie la production de chaleur, en particulier par combustion, les différents modes de transmission de la chaleur (...), les générateurs de chaleur, les bilans énergétiques, la circulation des fluides chauffés ou refroidis. Elle préside à la conception des foyers, des chaudières, des fours, des gazogènes, des échangeurs, des récupérateurs, des séchoirs et de tous les appareils de chauffage industriel ou domestique.

Spanish

Save record 5

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