TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
HEAT SOURCE [4 records]
Record 1 - external organization data 2006-01-25
Record 1, English
Record 1, Subject field(s)
- Heat (Physics)
- Nuclear Fission Reactors
- Compartment - Canadian Nuclear Safety Commission
Record 1, Main entry term, English
- heat source 1, record 1, English, heat%20source
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
[The] three main moderator heat sources [are at] full reactor power ...: a) The prompt radiation from fission (neutrons and gamma rays) produce 70% to 80% of the heat in the moderator. The neutrons typically contribute more than half of this. ... b) gamma rays from fission product decay and from decay of activation products in reactor components produce 15% to 25% of the heat in the moderator. This heat decreases slowly after a reactor shut down. c) Conventional heating (conduction, convection, thermal radiation and friction) accounts for about 3% to 5% of moderator heating. 1, record 1, English, - heat%20source
Record 1, French
Record 1, Domaine(s)
- Chaleur (Physique)
- Réacteurs nucléaires de fission
- Tiroir - Commission canadienne de sûreté nucléaire
Record 1, Main entry term, French
- source du réchauffement
1, record 1, French, source%20du%20r%C3%A9chauffement
feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- source chaude 1, record 1, French, source%20chaude
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Connaître les trois sources principales du réchauffement du modérateur. [...] Lorsque le réacteur fonctionne à pleine puissance, les sources chaudes du modérateur sont : a) Le rayonnement prompt imputable à la fission (neutrons et rayons gamma) produit 70 % à 80 % de la chaleur dans le modérateur. Les neutrons contribuent habituellement à plus de la moitié de cette chaleur. [...] b) Les rayons gamma issus de la désintégration des produits de fission et de la désintégration des produits d'activation dans les composants de réacteur produisent entre 15 % et 25 % de la chaleur dans le modérateur. Cette chaleur diminue lentement après la mise à l'arrêt du réacteur. c) Le chauffage classique (conduction, convexion, rayonnement thermique et frottement) représente environ 3 % à 5 % du chauffage du modérateur. 1, record 1, French, - source%20du%20r%C3%A9chauffement
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2000-02-29
Record 2, English
Record 2, Subject field(s)
- Air Conditioning and Heating
- Pumps
- Refrigeration Engineering
Record 2, Main entry term, English
- heat source 1, record 2, English, heat%20source
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The substance or environment from which heat is taken up. 1, record 2, English, - heat%20source
Record 2, French
Record 2, Domaine(s)
- Conditionnement de l'air et chauffage
- Pompes
- Techniques du froid
Record 2, Main entry term, French
- source de chaleur
1, record 2, French, source%20de%20chaleur
feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Substance ou milieu fournissant de la chaleur. 1, record 2, French, - source%20de%20chaleur
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Acondicionamiento de aire y calefacción
- Bombas
- Ingeniería de refrigeración
Record 2, Main entry term, Spanish
- fuente de calor
1, record 2, Spanish, fuente%20de%20calor
feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- foco de calor 1, record 2, Spanish, foco%20de%20calor
masculine noun
Record 2, Textual support, Spanish
Record 3 - internal organization data 1992-12-31
Record 3, English
Record 3, Subject field(s)
- Climatology
Record 3, Main entry term, English
- heat source
1, record 3, English, heat%20source
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
Process, or region, in which energy is added to the atmosphere in the form of heat. 1, record 3, English, - heat%20source
Record 3, French
Record 3, Domaine(s)
- Climatologie
Record 3, Main entry term, French
- source de chaleur
1, record 3, French, source%20de%20chaleur
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Processus, ou région, où de l'énergie est apportée à l'atmosphère sous forme de chaleur. 1, record 3, French, - source%20de%20chaleur
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Climatología
Record 3, Main entry term, Spanish
- fuente de calor
1, record 3, Spanish, fuente%20de%20calor
feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Proceso, o región, en donde la energía se añade a la atmósfera en forma de calor. 1, record 3, Spanish, - fuente%20de%20calor
Record 4 - internal organization data 1976-06-19
Record 4, English
Record 4, Subject field(s)
- Physics
Record 4, Main entry term, English
- heat source 1, record 4, English, heat%20source
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 OBS
see "heat" 1, record 4, English, - heat%20source
Record 4, French
Record 4, Domaine(s)
- Physique
Record 4, Main entry term, French
- source de calories 1, record 4, French, source%20de%20calories
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record 4, Spanish
Record 4, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: