HAM: WUFI (W?rme- Und Feuchtetransport Instation?r)

Download of the program (version 3.3, Oct/2002) at WUFI 3.3 (www.hoki.ibp.fhg.de/index.html)

Publications: (www.hoki.ibp.fhg.de/ibp/publikationen/konferenzbeitraege/konferenzbeitraege_e.html)

WUFI is based on the newest findings regarding vapour diffusion and liquid transport in building materials.

WUFI only requires standard material properties and easy-to-determine moisture storage and liquid transport functions.

WUFI can use measured weather data - including driving rain and solar radiation - as boundary conditions, thus allowing realistic investigations on the behaviour of the component under exposure to natural weather.

WUFI can be used for assessing

• the drying time of masonry with trapped construction moisture
• the danger of interstitial condensation
• the influence of driving rain on exterior building components
• the effect of repair and retrofit measures
• the hygrothermal performance of roof and wall assemblies under anticipated use or in different climate zones.

Features

• WUFI is a tool for developing and optimising building materials and components. For example, it was used as a development tool for the smart vapour retarder.
• WUFI is directed at manufacturers of building products, consultants, designers, engineering offices and experts in the field of hygrothermics.
• WUFI may be used as a teaching aid or advertising tool because of the instructive visualisation of its calculation results.
• WUFI runs on PCs under Windows NT4, 95, 98 and 2000. The comprehensive on-line help and documentation amounts to ca. 200 A4 pages. WUFI is available in a German or an English version. A free Research and Education version is available for download.
• Proper application of WUFI requires experience in the field of hygrothermics and some basic knowledge in the use of numerical calculation methods. (web: http://www.hoki.ibp.fhg.de/ibpe_sof1_fr.html)

Publications (http://www.hoki.ibp.fhg.de/ibp_sof151.html)

[E1] K¨ąnzel H.M.: Simultaneous Heat and Moisture Transport in Building Components. - One- and two-dimensional calculation using simple parameters. IRB Verlag (1995).

[E2] K¨ąnzel, H.M., Kie?l, K., Krus, M.: Moisture in exposed building components. International Symposium on Moisture Problems in Building Walls, Porto, 11.-13. Sept. 1995, Proceedings S. 258-266.

[E3] K¨ąnzel, H.M., Kie?l, K.: Drying of brick walls after impregnation. Internationale Zeitschrift f¨ąr Bauinstandsetzen 2 (1996) H. 2, S. 87-100.

[E4] Hens, H., Ojanen, T., K¨ąnzel, H.M., Dow, G., Rode, C., Hagentoft, C.-E.: Summary reports of common exercises in modelling. IEA-Annex 24 final report, Vol. 1, Leuven 1996.

[E5] K¨ąnzel, H.M., Kie?l, K.: Calculation of heat and moisture transfer in exposed building components. International Journal of heat and mass transfer 40 (1997), H. 1, S. 159-167.

[E6] K¨ąnzel, H.M. und Kie?l, K.: Moisture behaviour of protected membrane roofs with greenery. Proceedings CIB W40 Symposium Publication 213, University Kyoto,1998, S. 329-338.

[E7] K¨ąnzel, H.M.: Effect of interior and exterior insulation on the hygrothermal behaviour of exposed walls. Materials and Structures 31 (1998), H. 206, pp 99-103.

[E8] K¨ąnzel, H.M.: The Smart Vapor Retarder: An Innovation Inspired by Computer Simulations. ASHRAE Transactions 1998, V. 104, Pt. 2, pp 903-907.

[E9] K¨ąnzel, H.M.: Drying of Masonry with Exterior Insulation. Proceedings of the Fifth International Masonry Conference. British Masonry Society, No. 8, Stoke-on-Trent 1998, pp 245-250.

[E10] K¨ąnzel, H.M.: More Moisture Load Tolerance of Construction Assemblies Through the Application of a Smart Vapor Retarder. Conference Proceedings Thermal VII, ASHRAE Special Publications, Atlanta 1998, pp. 1129-132.

[E11] Holm, A., K¨ąnzel, H.M.: Combined Effect of Temperature and Humidity on the Deterioration Process of Insulation Materials in ETICS. Proceedings 5th Symposium "Building Physics in the Nordic Countries", G?teborg 1999, pp. 677-684.

[E12] Krus, M., Vik, T.A.: Determination of hygric material properties and calculation of the moisture balance of wooden prisms exposed to natural weathering. Proceedings of the 5th Symposium 'Building Physics in the Nordic Countries', G?teborg, August 24-26, 1999, S. 313-320.

[E13] Krus, M., Holm, A.: Simple methods to approximate the liquid transport coefficients describing the absorption and drying process. Proceedings of the 5th Symposium 'Building Physics in the Nordic Countries', G?teborg, August 24-26, 1999, S. 241-248.

[E14] Krus, M.: Hygrothermal calculations applied to water-repellent surfaces - validation and application. Proceedings Second International Conference on Surface Technology with Water Repellent Agents, ETH Z¨ąrich, 10.-11. Sept. 1998, S. 169-176.


Related References:

• Hens, H. and Janssens, A., (1993), Inquiry on HAMCAT codes
• Holm, A., (2001), Drying of an AAC flat roof in different climates Computational sensitivity analysis versus material property measurements
• Holm, A. and K¨ąnzel, H.M, (1999), Combined effect of temperature and humidity of the detoriation process of insulation materials in ETICS
• ehabilitation of rising dampness
  Holm, A. and K¨ąnzel, H.M, (2000), Two-dimensional transient heat and moisture simulations of rising damp with WUFI 2D
• Holm, A.H. and Kuenzel, H.M, (2002), Practical application of an uncertainty approach for hygrothermal building simulations--drying of an AAC flat roof
• Kalamees, T. and Vinha, J., (2003), Hygrothermal calculations and laboratory tests on timber-framed wall structures
• Karagiozis, A. and K¨ąnzel, H. M., (2001), WUFI-ORNL/IBP - A North American Hygrothermal Mode
• Karagiozis, A. C., (2001), Advanced hygrothermal models and design models
• Karagiozis, A., Hadjisophocleous, G. and Cao,S, (1997), Wind-driven rain distributions on two buildings
• Karagiozis, A., Kuenzel, H., Holm, A. and Desjarlais, A., (1999), An educational hygrothermal model: WUFI-ORNL/IBP
• Kehrer, M., Kunzel, H. and Sedlbauer, K., (2003), Ecological insulation materials - does sorption moisture affect their insulation performance?
• Krus, M. and Holm A., (0), Simple methods to approximate the liquid transport coefficients describing the absorption and drying
• application on roof
  Kunzel, H. M., (2000), Moisture risk assessment of roof constructions by computer simulation in comparison to the standard Glaser-method
• K¨ąnzel, H.M, (1995), Simultaneous heat and moisture transport in building components. one- and two-dimensional calculation using simple parameters
• Salonvaara, M. Karagiozis, A., and Holm, A., (2001), Stochastic building envelope modeling -- the influence of material properties
• Sathyanarayanan, R., Derome, D. and Rivard, H., (2003), The need for an integrated computer-based tool to support building envelope design
• Straube, J. and Schumacher, C., (2003), The role of hygrothermal modeling in practical building design: case studies
• Straube, J.F. and Burnett, E.F.P, (2000), Simplified prediction of driving rain deposition
• Straube, J.F. and Burnett, E.F.P, (2001), Overview of hygrothermal (HAM) analysis methods
• Straube, J.F. and V. Acahrya, (0), Indoor air quality, healthy buildings, and breathing walls
• Trechsel, H.R, (2001), Moisture analysis and condensation control in building envelopes
• WUFI, (0), Moisture transport in building materials - computer simulation with the WUFI model

• HAM: 1D-HAM
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• HAM: GLASTA
• HAM: hygIRC
• HAM: Hygran24
• HAM: LATENITE
• HAM: Lund-Gothenburg Group for Computational Building Physics
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• HAM: MOISTURE-EXPERT
• HAM: simple calculations
• HAM: simulation input parameters
• HAM: TCCC2D - Transient Coupled Convection and Concudtion in 2 Dimensions
• HAM: TRATMO
• HAM: WALLDRY
• HAM: WUFI-ORNL/IBP
• MOIST 3 property data