Thermal stratification induced by heating in a non-adiabatic context
| Autor: | C. Crouzeix, J. L. Le Mouël, Patrick Richon, Frédéric Perrier |
|---|---|
| Přispěvatelé: | Institut de Physique du Globe de Paris (IPGP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2006 |
| Předmět: |
Non-adiabatic
Environmental Engineering Underground cavities 010504 meteorology & atmospheric sciences [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Geography Planning and Development Stratification (water) Atmospheric sciences 7. Clean energy 01 natural sciences 010305 fluids & plasmas Thermal plumes 0103 physical sciences Thermal Adiabatic process Physics::Atmospheric and Oceanic Physics 0105 earth and related environmental sciences Civil and Structural Engineering Turbulence Building and Construction Thermal stratification Energy budget 13. Climate action Environmental science Filling box Stratification |
| Zdroj: | Building and Environment Building and Environment, Elsevier, 2006, 41 (7), pp.926-939. ⟨10.1016/j.buildenv.2005.04.003⟩ Building and Environment, 2006, 41 (7), pp.926-939. ⟨10.1016/j.buildenv.2005.04.003⟩ |
| ISSN: | 0360-1323 |
| Popis: | International audience; Thermal stratification associated with thermal plumes in semi-confined and confined non-adiabatic environments has been investigated using heating experiments performed in the atmosphere of an underground quarry. A 100 W source is used during 24 h, followed by 6 days of recovery. Vertical and horizontal profiles of temperature are recorded in the atmosphere, supplemented by a vertical profile at the wall. During a heating, an equilibrium stratification is observed in the atmosphere, compatible with a filling box mechanism modified by heat exchanges with the boundaries. At the wall, an initial cooling is observed, indicating the importance of phase changes of water in the energy budget. Such experiments should improve our understanding of the effect of turbulent plumes in air, which is relevant for proper ventilation and heating of buildings, and more generally, engineering, cultural and environmental applications. |
| Databáze: | OpenAIRE |
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