### Resumé

The room was ventilated by a low velocity diffuser, standing on the floor, from which air with a negative buoyancy was supplied. The vertical distribution of both temperature and contamination in the room was measured as a function of the heat load and the air flow rate. The contaminant distribution showed a clear stratification between clean and contaminated air, while the temperature was increasing uniformly from floor to ceiling. It was found that the convective flow at the heat source as well as the flow at the walls was influencing the level of stratification.

Originalsprog | Engelsk |
---|---|

Titel | ROOMVENT '90, International Conference on Engineering Aero- and Thermodynamics of Ventilated Rooms, Oslo, June 1990 |

Antal sider | 20 |

Udgivelses sted | Oslo |

Forlag | Otto Falch Hurtigtrykk |

Publikationsdato | 1990 |

Artikelnummer | 34 |

Kapitel | B2 |

Status | Udgivet - 1990 |

Begivenhed | Roomvent´90: engineering Aero-And Thermodynamics of Ventilated Room - Oslo, Norge Varighed: 13 jun. 1990 → 15 jun. 1990 Konferencens nummer: 2 |

### Konference

Konference | Roomvent´90 |
---|---|

Nummer | 2 |

Land | Norge |

By | Oslo |

Periode | 13/06/1990 → 15/06/1990 |

### Fingerprint

### Emneord

- Natural Convection
- Displacement Ventilation
- Concentration Distribution

### Citer dette

*ROOMVENT '90, International Conference on Engineering Aero- and Thermodynamics of Ventilated Rooms, Oslo, June 1990*[34] Oslo: Otto Falch Hurtigtrykk.

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*ROOMVENT '90, International Conference on Engineering Aero- and Thermodynamics of Ventilated Rooms, Oslo, June 1990.*, 34, Otto Falch Hurtigtrykk, Oslo, Roomvent´90, Oslo, Norge, 13/06/1990.

**Convection From a Slender Cylender in a Ventilated Room.** / Heiselberg, Per Kvols; Sandberg, M.

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - Convection From a Slender Cylender in a Ventilated Room

AU - Heiselberg, Per Kvols

AU - Sandberg, M.

PY - 1990

Y1 - 1990

N2 - The equations, based on an integral formulation, for turbulent natural boundary layer flow are solved in both the constant temperature case and in the constant heat flux case. Solutions are found. for convection along both flat plates and cylinders. Theoretical predictions are compared with measurements in the boundary layer flow around a heated vertical slender cylinder in a full-scale test room with displacement ventilation. Both velocity and temperature profiles in the boundary layer flow were recorded.The room was ventilated by a low velocity diffuser, standing on the floor, from which air with a negative buoyancy was supplied. The vertical distribution of both temperature and contamination in the room was measured as a function of the heat load and the air flow rate. The contaminant distribution showed a clear stratification between clean and contaminated air, while the temperature was increasing uniformly from floor to ceiling. It was found that the convective flow at the heat source as well as the flow at the walls was influencing the level of stratification.

AB - The equations, based on an integral formulation, for turbulent natural boundary layer flow are solved in both the constant temperature case and in the constant heat flux case. Solutions are found. for convection along both flat plates and cylinders. Theoretical predictions are compared with measurements in the boundary layer flow around a heated vertical slender cylinder in a full-scale test room with displacement ventilation. Both velocity and temperature profiles in the boundary layer flow were recorded.The room was ventilated by a low velocity diffuser, standing on the floor, from which air with a negative buoyancy was supplied. The vertical distribution of both temperature and contamination in the room was measured as a function of the heat load and the air flow rate. The contaminant distribution showed a clear stratification between clean and contaminated air, while the temperature was increasing uniformly from floor to ceiling. It was found that the convective flow at the heat source as well as the flow at the walls was influencing the level of stratification.

KW - Natural Convection

KW - Displacement Ventilation

KW - Concentration Distribution

KW - Natural Convection

KW - Displacement Ventilation

KW - Concentration Distribution

M3 - Article in proceeding

BT - ROOMVENT '90, International Conference on Engineering Aero- and Thermodynamics of Ventilated Rooms, Oslo, June 1990

PB - Otto Falch Hurtigtrykk

CY - Oslo

ER -