Conceptual Reference Database for Building Envelope Research Prev
Next

Position paper on material characterization and HAM model benchmarking

Bomberg, M., Carmeliet, J., Grunewald, J., Holm, A., Karagiozis, A., Kuenzel, H. and Roels, S.
2002
6th Symposium on Building Physics in the Nordic Countries, Trondheim, Norway, Jun 17

Bomberg, M., Carmeliet, J., Grunewald, J., Holm, A., Karagiozis, A., Kuenzel, H. and Roels, S., (2002), "Position paper on material characterization and HAM model benchmarking", 6th Symposium on Building Physics in the Nordic Countries, Trondheim, Norway, Jun 17.
ABSTRACT

Knowledge about the rate of moisture flow in materials is of importance for many practical considerations in construction. To this end, heat, air and moisture (HAM) transport models are increasingly applied to assist in understanding the hygric and thermal behavior of building materia ls and structures. Since modeling of building performance is quite a young research subject and the material properties available are often based on classical methods, the applicability of current computer codes is still limited. Thus, there is a real need to introduce new methods for material characterization. This will enhance the future use of computer models dealing with issues such as shrinkage, swelling, hysteresis, bypass flow, dual porosity, mobile and immobile water, salt transport, and numerous related durability applications. To do this, however, we need to develop a solid foundation of material characterization.

Utility of a HAM model depends on three elements: (1) the description of constituent governing physical processes by the model, (2) the description of boundary conditions (climate) and (3) by the use of appropriate material properties (adequately representing both the material and all transport characteristics used in the governing equations). The last aspect of HAM modeling is discussed here. Authors recommend a minimum set of hygric characteristics that provide a unique characterization for each material.

See also:

Grunewald, J., Plagge, R. and H?upl, P., 2002, A two-levelled hygrothermal material database for the numerical simulation program DELPHIN4
Related Resources:

This publication in whole or part might be found online. Check the sources on the related article below. Or use search engines on the web.
Related Concepts

Author Information and Other Publications Notes
Bomberg, M.
  1. Analysis of selected water absorption coefficient measurements
  2. Building envelope and environmental control - Part 3: Issues of system integration
  3. Building envelope and environmental control: issues of system integration
  4. Building envelope design, Part 2: estimating field performance of thermal insulation
  5. Building envelope: Heat, air and moisture interactions
  6. Final Report from Task 8 of MEWS Project (T8-03) - Hygrothermal Response of Exterior Wall Systems to Climate Loading: Methodology and Interpretation of Results for Stucco, EIFS, Masonry and Siding Clad Wood-Frame Walls
  7. Heat, air and moisture control in walls of Canadian houses: a review of the historic basis for current practices
  8. In-Situ performance evaluation of exterior insulation basement systems (EIBS) - spray polyurethane foam: summary report
  9. Integrated Methodology for Evaluation of Energy Performance of the Building Enclosures -- Part 1: Test Program Development
  10. Integrated methodology for evaluation of energy performance of the building enclosures: part 3 ¡ª uncertainty in thermal measurem
  11. Modified cup for testing of water vapour transmission through thick, permeable materials
  12. Moisture management of EIFS walls. Part 1.The basis for evaluation
  13. Performance evaluation of exterior insulation and finish systems (EIFS)
  14. Report from Task 2 of MEWS Project - Description of 17 Large Sale Wall Specimens Built for Water Entry Investigation in IRC Dynamic Wall Testing Facility
  15. Report from Task 8 of MEWS Project - MEWS Methodology for Developing Moisture Management Strategies - Application to Stucco Clad Wood-Frame Walls in North America
  16. The energy conundrum of modern buildings
  17. Three-dimensional analysis of thermal resistance of exterior basement insulation systems (EIBS)
  18. Towards an engineering model of material characteristics for input to ham transport simulations - Part 1: an approach
  19. Water vapor transmission and moisture accumulation in polyurethane and polyisocyanurate foams
  20. Water vapor transmission through building materials and system: mechanisms and measurement  
Carmeliet, J.
Department of Civil Engineering Laboratory of Building Physics, Catholic University of Leuven, Belgium
  1. A comparison of different techniques to quantify moisture content profiles in porous building materials
  2. A multiscale network model for simulating moisture transfer properties of porous media
  3. A review of wind-driven rain research in building science
  4. A simplified numerical model for rainwater runoff on building facades: Possibilities and limitations
  5. Conservative modelling of the moisture and heat transfer in building components under atmospheric excitation
  6. Description of the moisture capacity of building materials
  7. Determination of the isothermal moisture transport properties of porous building materials
  8. Determination of the liquid water diffusivity from transient moisture transfer experiments
  9. Determination of the moisture capacity of porous building materials
  10. Driving rain on building envelopes II: representative experimental data for driving rain estimation
  11. Microscopic analysis of imbibition processes in oolitic limestone
  12. Modeling fluid flow in fractured media using continuum, network and discrete aproaches
  13. Pedestrian wind environment around buildings: literature review and practical examples
  14. Performance prediction for masonry walls with EIFS using calculation procedures and laboratory testing
  15. Rainwater runoff from building facades: A review
  16. Simulating non-isothermal water vapour transfer: an experimental validation on multi-layered building components
  17. Spatial and temporal distribution of driving rain on a low-rise building
  18. The influence of soil moisture in the unsaturated zone on the heat loss from buildings via the ground
  19. Wind, rain and the building envelope: studies at the Laboratory of Building Physics, KULeuven
  20. Wind-driven rain as a boundary condition for HAM simulations: Analysis of simplified modelling approaches  
Grunewald, J.
Technology University of Dresden, Faculty of Architecture, Institute of Building Climatology Zellescher Weg 17, 01069 Dresden
  1. A two-levelled hygrothermal material database for the numerical simulation program DELPHIN4
  2. Documentation of the Numerical Simulation Program DIM3.1, Volume 1: Theoretical Fundamentals
  3. Evaluation of discretized transport properties for numerical modelling of heat and moisture transfer in building structures
  4. Modified cup for testing of water vapour transmission through thick, permeable materials
  5. Numerical and experimental investigation of coupled heat and moisture transport problems
  6. On the hysteresis in moisture storage and conductivity measured by the instantaneous profile method
  7. Towards an engineering model of material characteristics for input to ham transport simulations - Part 1: an approach  
Holm, A.
Gunnar Holm Department of Biotechnology, Technical University of Denmark, Building 221, DK-2800 Lyngby, Denmark.
  1. An educational hygrothermal model: WUFI-ORNL/IBP
  2. Combined effect of temperature and humidity of the detoriation process of insulation materials in ETICS
  3. Determination of moisture and salt content distributions by combining NMR and gamma ray measurements
  4. Drying of an AAC flat roof in different climates Computational sensitivity analysis versus material property measurements
  5. Moisture buffering effects of interior linings made from wood or wood based products
  6. Moisture-buffering effect - experimental investigations and validation
  7. Non-isothermal moisture transfer in porous building materials
  8. Practical application of an uncertainty approach for hygrothermal building simulations--drying of an AAC flat roof
  9. Previous Experimental Studies and Field Measurements on Moisture Buffering by Indoor Surface Materials
  10. Simulation of indoor temperature and humidity conditions including hygrothermal interactions with the building envelope
  11. Stochastic building envelope modeling -- the influence of material properties
  12. The hygrothermal behaviour of rooms: combining thermal building simulation and hygrothermal envelope calculation
  13. Two-dimensional transient heat and moisture simulations of rising damp with WUFI 2D
  14. Uncertainty approaches for hygrothermal building simulations - drying of an AAC flat roof in different climates
  15. Uncertainty of hygrothermal calculations  
Karagiozis, A.
Achilles N. Karagiozis, Oak Ridge National Laboratory, Building Technology Center, Oak Ridge
  1. A North American research approach to moisture design by modeling
  2. Advanced hygrothermal modeling of building materials using MOISTURE-EXPERT 1.0
  3. Advanced hygrothermal models and design models
  4. An educational hygrothermal model: WUFI-ORNL/IBP
  5. Applied moisture engineering
  6. Barrier EIFS clad walls: Results from a moisture engineering study
  7. Boundary element analysis of uncoupled quasi-static hygrothermoelasticity for two-dimensional composite walls
  8. Building enclosure hygrothermal performance study phase I
  9. Drying capabilities of wood frame walls with wood siding
  10. EIFS hygrothermal performance due to initial construction moisture as a function of air leakage, interior cavity insulation, and climate conditions
  11. Hygrothermal system-performance of a whole building
  12. Importance of moisture control in building performance
  13. Influence of material properties on the hygrothermal performance of a high-rise residential wall
  14. Integrated approaches for moisture analysis
  15. Integrated hygrothermal performance of building envelopes and systems
  16. Measurements and two-dimensional computer simulations of the hygrothermal performance of a wood frame wall
  17. Moisture transport in building envelopes using an approximate factorization solution method
  18. Simulation of indoor temperature and humidity conditions including hygrothermal interactions with the building envelope
  19. Wind-driven rain distributions on two buildings
  20. WUFI-ORNL/IBP - A North American Hygrothermal Mode  
Kuenzel, H.
Director of Hygrothermics, Fraunhofer Institute of Bauphysics e-mail: kuenzel@hoki.ibp.fhg.de 3 Senior Researcher, Hygrothermal Modeling Manager, Fraunhofer- e-mail: holm@hoki.ibp.fhg.de
  1. An educational hygrothermal model: WUFI-ORNL/IBP
  2. Practical application of an uncertainty approach for hygrothermal building simulations--drying of an AAC flat roof
  3. The hygrothermal behaviour of rooms: combining thermal building simulation and hygrothermal envelope calculation
  4. Uncertainty approaches for hygrothermal building simulations - drying of an AAC flat roof in different climates  
Roels, S.
Department of Civil Engineering Laboratory of Building Physics Catholic University of Leuven, Belgium
  1. A comparison of different techniques to quantify moisture content profiles in porous building materials
  2. A comparison of the Nordtest and Japanese test methods for the moisture buffering performance of building materials
  3. A quasi-steady state implementation of air convection in a transient heat and moisture building component model
  4. Description of the moisture capacity of building materials
  5. Determination of the isothermal moisture transport properties of porous building materials
  6. Determination of the liquid water diffusivity from transient moisture transfer experiments
  7. Determination of the moisture capacity of porous building materials
  8. Impact, absorption and evaporation of raindrops on building facades
  9. In situ determination of the moisture buffer potential of room enclosures
  10. Microscopic analysis of imbibition processes in oolitic limestone
  11. Modeling fluid flow in fractured media using continuum, network and discrete aproaches
  12. Qualitative and quantitative assessment of interior moisture buffering by enclosures
  13. Review of mould prediction models and their influence on mould risk evaluation
  14. Simulating non-isothermal water vapour transfer: an experimental validation on multi-layered building components
  15. Wind-driven rain as a boundary condition for HAM simulations: Analysis of simplified modelling approaches  


CRDBER, at CBS, BCEE, ENCS, Concordia,