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An integrated zonal model to predict transient indoor humidity distribution

Wurtz, E., Haghighat, F., Mora, L., Mendonca, K. C., Zhao, H., Maalouf, C. and Bourdoukan, P.
2006
ASHRAE Transactions, 01-JUL-06

Wurtz, E., Haghighat, F., Mora, L., Mendonca, K. C., Zhao, H., Maalouf, C. and Bourdoukan, P., (2006), "An integrated zonal model to predict transient indoor humidity distribution", ASHRAE Transactions, 01-JUL-06.
Abstract:
This paper investigates the ability of intermediate models such as zonal models to predict environmental conditions in a room. The first part compares experimental data to zonal and conventional k-[epsilon] computational fluid dynamics model predictions in a mixed-ventilation room. Then, in order to investigate the impact of building material moisture adsorption and desorption processes on indoor air humidity and predict humidity distribution in a room, a zonal model was integrated with a building material moisture transfer model, based on the conservation of energy and dry air and water vapor mass. The model is applied to a room conditioned by a fan-coil unit. Our results suggest that this model is able to give a satisfactory prediction of transient humidity distribution in the room as well as to provide meaningful information on cooling loads.

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Author Information and Other Publications Notes
Wurtz, E.
  1. An integrated zonal model for predicting transient VOC distribution in a ventilated room
  2. Comparing zonal and CFD model predictions of indoor airflows under mixed convection conditions to experimental data
  3. Comparing zonal and CFD model predictions of isothermal indoor airflows to experimental data
  4. Effects of coupled heat and moisture transfers through walls upon indoor environment predictions  
Haghighat, F.
  1. An integrated zonal model for predicting transient VOC distribution in a ventilated room
  2. Assessing long-term performance of centralized thermal energy storage system
  3. Best Practice for Architects and Engineers
  4. Centralized latent heat thermal energy storage system: Model development and validation
  5. Designing building envelope with PCM wallboards: Design tool development
  6. Energy-Storing Wallboard: Flammability Tests
  7. Final Report, IEA, annex 23, applying energy storage in buildings of the future
  8. Measurement of diffusion coefficients of VOCs for building materials: review and development of a calculation procedure
  9. Modeling moisture accumulation in multi-layered building materials, MODELING MOISTURE IN RESIDENTIAL BUILDINGS WITH A MULTIZONE IAQ PROGRAM
  10. Modeling of phase change materials for applications in whole building simulation
  11. Modelling of volatile organic compounds emission from dry building materials
  12. Modified cup for testing of water vapour transmission through thick, permeable materials
  13. Optimization of ventilation system design and operation in office environment
  14. Zonal Models for Indoor Air Flow - A Critical Review  
Mora, L.
  1. Comparing zonal and CFD model predictions of indoor airflows under mixed convection conditions to experimental data
  2. Comparing zonal and CFD model predictions of isothermal indoor airflows to experimental data  
Mendonca, K. C.
     
Zhao, H.
     
Maalouf, C.
     
Bourdoukan, P.
     


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