Mathematical Models for Room Air Distribution

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Abstract

A number of different models on the air distribution in rooms are introduced. This includes the throw model, a model on penetration length of a cold wall jet and a model for maximum velocity in the dimensioning of an air distribution system in highly loaded rooms and shows that the amount of heat removed from the room at constant penetration length is proportional to the cube of the velocities in the occupied zone. It is also shown that a large number of diffusers increases the amount of heat which may be removed without affecting the thermal conditions. Control strategies for dual duct and single duct systems are given and the paper is concluded by mentioning a computer-based prediction method which gives the velocity and temperature distribution in the whole room.
Original languageEnglish
Title of host publicationSystem Simulation in Buildings : Proceedings of the International Coonference held in Liége (Belgium) on 6-8 December 1982
Number of pages16
Volume1
Place of PublicationBelgium
PublisherCommission of the European Communities, COMAC - BME
Publication date1982
Edition1
Pages455-470
Publication statusPublished - 1982
EventSystem Simulation in Buildings: Proceedings of the Internaional Conference held in Liége (Belgium) on 6-8 December 1982 - University of Liége, Belgium, Liége, Belgium
Duration: 6 Dec 19828 Dec 1982
Conference number: 1

Conference

ConferenceSystem Simulation in Buildings
Number1
LocationUniversity of Liége, Belgium
CountryBelgium
CityLiége
Period06/12/198208/12/1982

Bibliographical note

"Addendum- system simulation in buildings" part of work.

Keywords

  • Air Distribution
  • Recirculation
  • Wall Jet
  • Air Flow
  • Temperature
  • Throw Model
  • Ventilation

Cite this

Nielsen, P. V. (1982). Mathematical Models for Room Air Distribution. In System Simulation in Buildings: Proceedings of the International Coonference held in Liége (Belgium) on 6-8 December 1982 (1 ed., Vol. 1, pp. 455-470). Belgium: Commission of the European Communities, COMAC - BME.
Nielsen, Peter V. / Mathematical Models for Room Air Distribution. System Simulation in Buildings: Proceedings of the International Coonference held in Liége (Belgium) on 6-8 December 1982. Vol. 1 1. ed. Belgium : Commission of the European Communities, COMAC - BME, 1982. pp. 455-470
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Nielsen, PV 1982, Mathematical Models for Room Air Distribution. in System Simulation in Buildings: Proceedings of the International Coonference held in Liége (Belgium) on 6-8 December 1982. 1 edn, vol. 1, Commission of the European Communities, COMAC - BME, Belgium, pp. 455-470, System Simulation in Buildings, Liége, Belgium, 06/12/1982.

Mathematical Models for Room Air Distribution. / Nielsen, Peter V.

System Simulation in Buildings: Proceedings of the International Coonference held in Liége (Belgium) on 6-8 December 1982. Vol. 1 1. ed. Belgium : Commission of the European Communities, COMAC - BME, 1982. p. 455-470.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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N2 - A number of different models on the air distribution in rooms are introduced. This includes the throw model, a model on penetration length of a cold wall jet and a model for maximum velocity in the dimensioning of an air distribution system in highly loaded rooms and shows that the amount of heat removed from the room at constant penetration length is proportional to the cube of the velocities in the occupied zone. It is also shown that a large number of diffusers increases the amount of heat which may be removed without affecting the thermal conditions. Control strategies for dual duct and single duct systems are given and the paper is concluded by mentioning a computer-based prediction method which gives the velocity and temperature distribution in the whole room.

AB - A number of different models on the air distribution in rooms are introduced. This includes the throw model, a model on penetration length of a cold wall jet and a model for maximum velocity in the dimensioning of an air distribution system in highly loaded rooms and shows that the amount of heat removed from the room at constant penetration length is proportional to the cube of the velocities in the occupied zone. It is also shown that a large number of diffusers increases the amount of heat which may be removed without affecting the thermal conditions. Control strategies for dual duct and single duct systems are given and the paper is concluded by mentioning a computer-based prediction method which gives the velocity and temperature distribution in the whole room.

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KW - Throw Model

KW - Ventilation

KW - Wall Jet

KW - Temperature

KW - Air Flow

KW - Recirculation

KW - Air Distribution

KW - Recirculation

KW - Wall Jet

KW - Air Flow

KW - Temperature

KW - Throw Model

KW - Ventilation

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Nielsen PV. Mathematical Models for Room Air Distribution. In System Simulation in Buildings: Proceedings of the International Coonference held in Liége (Belgium) on 6-8 December 1982. 1 ed. Vol. 1. Belgium: Commission of the European Communities, COMAC - BME. 1982. p. 455-470