Evaluation of the Effective Moisture Penetration Depth Model for Estimating Moisture Buffering in Buildings

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Description

This study examines the effective moisture penetration depth (EMPD) model, and its suitability for building simulations. The EMPD model is a compromise between the simple, inaccurate effective capacitance approach and the complex, yet accurate, finite-difference approach. Two formulations of the EMPD model were examined, including the model used in the EnergyPlus building simulation software. An error in the EMPD model we uncovered was fixed with the release of EnergyPlus version 7.2, and the EMPD model in earlier versions of EnergyPlus should not be used.

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33 p.

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Woods, J.; Winkler, J. & Christensen, D. January 1, 2013.

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Description

This study examines the effective moisture penetration depth (EMPD) model, and its suitability for building simulations. The EMPD model is a compromise between the simple, inaccurate effective capacitance approach and the complex, yet accurate, finite-difference approach. Two formulations of the EMPD model were examined, including the model used in the EnergyPlus building simulation software. An error in the EMPD model we uncovered was fixed with the release of EnergyPlus version 7.2, and the EMPD model in earlier versions of EnergyPlus should not be used.

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33 p.

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  • Report No.: NREL/TP-5500-57441
  • Grant Number: AC36-08GO28308
  • DOI: 10.2172/1067948 | External Link
  • Office of Scientific & Technical Information Report Number: 1067948
  • Archival Resource Key: ark:/67531/metadc832070

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 2013

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

Description Last Updated

  • April 5, 2017, 6:24 p.m.

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Woods, J.; Winkler, J. & Christensen, D. Evaluation of the Effective Moisture Penetration Depth Model for Estimating Moisture Buffering in Buildings, report, January 1, 2013; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc832070/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.