TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

STEADY STATE MODEL [4 records]

Record 1 2020-12-16

English

Subject field(s)
  • Modelling (Mathematics)
  • Environmental Studies and Analyses
  • Air Pollution
CONT

Assuming that a pollutant is being emitted into the environment, how far and fast does it travel, and what is its fate over time? The Gaussian plume model is a(relatively) simple mathematical model that is typically applied to point source emitters, such as coal-burning electricity-producing plants. … One of the key assumptions of this model is that over short periods of time(such as a few hours), steady state conditions exist with regard to air pollutant emissions and meteorological changes.

French

Domaine(s)
  • Modélisation (Mathématique)
  • Études et analyses environnementales
  • Pollution de l'air

Spanish

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Record 2 2002-01-21

English

Subject field(s)
  • Climatology
  • Atmospheric Physics
DEF

The steady state response of the climate system(or a climate model) to an imposed radiative forcing.

French

Domaine(s)
  • Climatologie
  • Physique de l'atmosphère
DEF

Réaction, à l'état d'équilibre, du système climatique (ou d'un modèle de climat) à un forçage radiatif imposé.

Spanish

Campo(s) temático(s)
  • Climatología
  • Física de la atmósfera
DEF

Respuesta, en estado estacionario, del sistema climático (o de un modelo climático) a un forzamiento radiativo impuesto.

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Record 3 2001-05-28

English

Subject field(s)
  • Industrial Design
  • Pipes and Fittings
CONT

COADE Inc. has released CADWorx/P&ID Version 3.10, an enhanced version of the company’s AutoCAD-based software for Process & Instrumentation Diagram (P&ID) for piping plant design, now with fully configurable database tables and an optional automatic Instrument Loop Generation Module with instrument loop database table editor.

CONT

The models required will be very detailed compared to those used in typical steady state simulations. Many features which typically only appear at the P&I diagram stage(valves, storage, long pipe runs, sensors, controllers) need to be represented in the model, as they will have significant impact on plant dynamics.

CONT

The bidder shall include in his proposal sufficient drawings, data and other information to completely describe the equipment being proposed. This proposal information shall include but not be limited to, the following: A. P&I diagram showing and making distinction between all piping valves, instruments and equipment to be furnished by the seller and items to be provided by the buyer.

Key term(s)
  • process and instrumentation diagramme
  • piping and instrumentation diagramme
  • P&I diagramme
  • P & I diagramme

French

Domaine(s)
  • Dessin industriel
  • Tuyauterie et raccords
CONT

Une demande d'extension du contenu traité par l'AP221 a été effectuée lors de la réunion ISO STEP de Chester en mars 1997 pour prendre en compte toutes les informations que peut contenir un schéma de procédé et d'instrumentation (P&ID).

CONT

Si un P&ID a déjà été généré et [...] qu'on commence un modèle 3D, les seules informations supplémentaires nécessaires concerneront celles relatives au dimensionnement et au positionnement.

CONT

Dessins P&ID (Flowchart). Ils ont deux buts : le contrôle du déroulement du processus, et la définition du contour du projet.

Spanish

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Record 4 1985-11-28

English

Subject field(s)
  • Air Pollution
CONT

The methodological component that can be applied here to estimate threshold loadings from Henriksen's model must use input assumption as to the steady state lake pH required to protect a given percentage of the aquatic resources. Maintaining a pH of 5. 3 would, presumably, prevent lakes from entering the transition phase.

French

Domaine(s)
  • Pollution de l'air
CONT

A défaut de données historiques, des modèles chimiques ont été développés pour déterminer le degré de sensibilité et d'acidification des eaux de surface. Le modèle de Henriksen, par exemple, repose sur le principe selon lequel dans les conditions naturelles, la concentration en calcium est associée à un degré spécifique d'acidité. Dans les lacs affectés par les précipitations acides, pour une même concentration en calcium, l'acidité devrait être plus élevée.

Spanish

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