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HEAT FLOW VALUE [4 records]
Record 1 - internal organization data 2009-02-17
Record 1, English
Record 1, Subject field(s)
- Geophysics
- Geothermal Energy
- Thermal Springs - Uses
Record 1, Main entry term, English
- geothermal gradient
1, record 1, English, geothermal%20gradient
correct, see observation
Record 1, Abbreviations, English
Record 1, Synonyms, English
- thermal gradient 2, record 1, English, thermal%20gradient
correct, see observation
- temperature gradient 3, record 1, English, temperature%20gradient
correct, see observation
- heat flow value 4, record 1, English, heat%20flow%20value
- heat gradient 5, record 1, English, heat%20gradient
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The increase in the temperature of the earth with the increasing depth from the surface ... 6, record 1, English, - geothermal%20gradient
Record number: 1, Textual support number: 1 CONT
As the depth of a well increases, so does the temperature; this phenomenon is known as the temperature gradient. 6, record 1, English, - geothermal%20gradient
Record number: 1, Textual support number: 1 OBS
... expressed either in degrees per unit depth or in units of depth per degree. 7, record 1, English, - geothermal%20gradient
Record number: 1, Textual support number: 2 OBS
... averages about 1°F per 60 ft, but may be considerably greater. 6, record 1, English, - geothermal%20gradient
Record number: 1, Textual support number: 3 OBS
When applied to the Earth, the term "geothermal gradient" may be used [as a synonym for "thermal gradient"]. 8, record 1, English, - geothermal%20gradient
Record number: 1, Textual support number: 4 OBS
Not to be confused with "geothermal degree." 9, record 1, English, - geothermal%20gradient
Record number: 1, Textual support number: 5 OBS
thermal gradient; geothermal gradient; temperature gradient: terms used at Natural Resources Canada - Earth Sciences Sector. 9, record 1, English, - geothermal%20gradient
Record 1, Key term(s)
- geothermic gradient
Record 1, French
Record 1, Domaine(s)
- Géophysique
- Énergie géothermique
- Thermalisme
Record 1, Main entry term, French
- gradient géothermique
1, record 1, French, gradient%20g%C3%A9othermique
correct, see observation, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- gradient géothermal 2, record 1, French, gradient%20g%C3%A9othermal
correct, masculine noun
- gradient thermique 3, record 1, French, gradient%20thermique
correct, see observation, masculine noun
- gradient de température 4, record 1, French, gradient%20de%20temp%C3%A9rature
see observation, masculine noun
- taux de variation de la température 5, record 1, French, taux%20de%20variation%20de%20la%20temp%C3%A9rature
see observation, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Augmentation de la température en fonction de la profondeur en dessous de la surface. 6, record 1, French, - gradient%20g%C3%A9othermique
Record number: 1, Textual support number: 1 CONT
[Le gradient géothermique] varie d'après l'histoire géologique, la radioactivité des roches et leur conductivité. En moyenne, il est de 35 °C par kilomètre. 7, record 1, French, - gradient%20g%C3%A9othermique
Record number: 1, Textual support number: 2 CONT
L'accroissement [de température] est en général de 1° pour un enfoncement de 30 à 35 m et on exprime ce résultat en disant que le degré ou gradient géothermique est de 33 m. [...] le degré géothermique signifie qu'il existe une source de chaleur profonde et permanente sous l'écorce terrestre [...] 8, record 1, French, - gradient%20g%C3%A9othermique
Record number: 1, Textual support number: 3 CONT
Le milieu tectonique le plus favorable à la présence de cheminées kimberlitiques est un craton ancien et épais, à faible gradient géothermique. 9, record 1, French, - gradient%20g%C3%A9othermique
Record number: 1, Textual support number: 1 OBS
gradient géothermique; gradient thermique; gradient de température; taux de variation de la température : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 10, record 1, French, - gradient%20g%C3%A9othermique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Geofísica
- Energía geotérmica
- Fuentes termales - usos
Record 1, Main entry term, Spanish
- gradiente geotérmico
1, record 1, Spanish, gradiente%20geot%C3%A9rmico
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- gradiente térmico 2, record 1, Spanish, gradiente%20t%C3%A9rmico
correct, masculine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Aumento de la temperatura de la tierra por unidad de profundidad (aproximadamente 3,3 °C por 100 m). 3, record 1, Spanish, - gradiente%20geot%C3%A9rmico
Record 2 - internal organization data 2005-04-11
Record 2, English
Record 2, Subject field(s)
- Fluid Mechanics and Hydraulics (Physics)
- Meteorology
- Modelling (Mathematics)
Record 2, Main entry term, English
- thermal boundary layer
1, record 2, English, thermal%20boundary%20layer
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Boundary Layers. A consequence of any fluid-surface interaction(as is found in convective heat transfer) is the development of a region in the fluid through which the velocity varies from zero at the surface to a finite value... associated with the flow. This region is known as the hydrodynamic, or velocity boundary layer. If there is a difference in the surface and flow temperatures, there will also develop a region in the fluid through which the temperature varies... in the outer flow... This region, called the thermal boundary layer, may be smaller, larger or the same size as that through which the velocity varies. 2, record 2, English, - thermal%20boundary%20layer
Record 2, French
Record 2, Domaine(s)
- Mécanique des fluides et hydraulique (Physique)
- Météorologie
- Modélisation (Mathématique)
Record 2, Main entry term, French
- couche limite thermique
1, record 2, French, couche%20limite%20thermique
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Couches limites et dynamiques. Quel que soit le régime d'écoulement, il demeure une sous-couche laminaire (couche limite dynamique) dont l'épaisseur est d'autant plus réduite que le nombre de Reynolds est grand. L'épaisseur de cette couche limite varie en fonction de nombreux paramètres : nature du fluide, température, rugosité de la paroi... L'analogie de Reynolds montre que le gradient thermique est particulièrement important au voisinage de la paroi, c'est à dire dans la sous-couche laminaire. Quel que soit le régime d'écoulement du fluide, on considère que la résistance thermique est entièrement située dans le film laminaire qui joue le rôle d'isolant thermique (couche limite thermique). 2, record 2, French, - couche%20limite%20thermique
Record number: 2, Textual support number: 2 CONT
Convection forcée externe. Le modèle de la couche limite appliqué aux transferts thermiques et aux transferts de masse (différentes espèces). Couche limite mécanique, couche limite thermique, couche limite massique. 3, record 2, French, - couche%20limite%20thermique
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1990-09-28
Record 3, English
Record 3, Subject field(s)
- Strength of Materials
- Engineering Tests and Reliability
- Plastics Industry
Record 3, Main entry term, English
- cyclic heat test
1, record 3, English, cyclic%20heat%20test
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 OBS
Resistance to Temperature. ASTM Recommended Practice D 794 describes high-temperature testing for plastics. Only the procedure for heat exposure is specified, the test method being governed by the potential end use. Heat is applied using an oven with controlled air flow and with substantial fresh air intake. Two types of tests are described : continuous heat and cyclic heat. In the former, heat is gradually increased until failure occurs. Failure is defined as a change in appearance, weight, dimension, or other property that alters the material to a degree that it is no longer serviceable for the purpose in question. The test may take minutes to weeks, depending on the rate of temperature increase. The cyclic heat test repeatedly applies heat of a constant value until failure. 1, record 3, English, - cyclic%20heat%20test
Record 3, French
Record 3, Domaine(s)
- Résistance des matériaux
- Fiabilité, contrôle et essais (Ingénierie)
- Industrie des plastiques
Record 3, Main entry term, French
- essai d'endurance thermique cyclique
1, record 3, French, essai%20d%27endurance%20thermique%20cyclique
proposal, see observation, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
Les méthodes d'essai d'endurance thermique sont destinées à déterminer les changements survenus dans les propriétés des matériaux par suite d'une longue exposition à une température élevée. 2, record 3, French, - essai%20d%27endurance%20thermique%20cyclique
Record number: 3, Textual support number: 2 OBS
Températures et durées d'exposition. Les éprouvettes doivent être soumises à un minimum de trois températures réparties sur une gamme suffisamment étendue pour permettre l'établissement de la relation entre la température et la durée jusqu'à détérioration et pour déterminer le profil d'endurance thermique ou l'indice de température. [On distingue le] vieillissement par cycles [et le] vieillissement continu. 2, record 3, French, - essai%20d%27endurance%20thermique%20cyclique
Record number: 3, Textual support number: 3 OBS
Essai cyclique. Essai composite dans lequel les mêmes expositions se répètent de façon cyclique [...] 2, record 3, French, - essai%20d%27endurance%20thermique%20cyclique
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1990-09-28
Record 4, English
Record 4, Subject field(s)
- Strength of Materials
- Engineering Tests and Reliability
- Plastics Industry
Record 4, Main entry term, English
- continuous heat test
1, record 4, English, continuous%20heat%20test
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 OBS
Resistance to Temperature. ASTM Recommended Practice D 794 describes high-temperature testing for plastics. Only the procedure for heat exposure is specified, the test method being governed by the potential end use. Heat is applied using an oven with controlled air flow and with substantial fresh air intake. Two types of tests are described : continuous heat and cyclic heat. In the former, heat is gradually increased until failure occurs. Failure is defined as a change in appearance, weight, dimension, or other property that alters the material to a degree that it is no longer serviceable for the purpose in question. The test may take minutes to weeks, depending on the rate of temperature increase. The cyclic heat test repeatedly applied heat of a constant value until failure. 1, record 4, English, - continuous%20heat%20test
Record 4, French
Record 4, Domaine(s)
- Résistance des matériaux
- Fiabilité, contrôle et essais (Ingénierie)
- Industrie des plastiques
Record 4, Main entry term, French
- essai d'endurance thermique continu
1, record 4, French, essai%20d%27endurance%20thermique%20continu
proposal, see observation, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 OBS
Les méthodes d'essai d'endurance thermique sont destinées à déterminer les changements survenus dans les propriétés des matériaux par suite d'une longue exposition à une température élevée. 2, record 4, French, - essai%20d%27endurance%20thermique%20continu
Record number: 4, Textual support number: 2 OBS
Températures et durées d'exposition. Les éprouvettes doivent être soumises à un minimum de trois températures réparties sur une gamme suffisamment étendue pour permettre l'établissement de la relation entre la température et la durée jusqu'à détérioration et pour déterminer le profil d'endurance thermique ou l'indice de température. [On distingue le] vieillissement par cycles [et le] vieillissement continu. 2, record 4, French, - essai%20d%27endurance%20thermique%20continu
Record 4, Spanish
Record 4, Textual support, Spanish
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