Skip header navigation to main content. NREL - National Renewable Energy Laboratory
NREL Publications

Return to Search

Return to Document List Go to Next Document

Document Summary

Title: Evaluation of the Performance of Houses With and Without Supplemental Dehumidification in a Hot-Humid Climate.
Author: Kerrigan, P.; Norton, P.
Pages/Volumes: 96 pp.
Publication Year: 2014
Notes: Work performed by Building Science Corporation, Westford, Massachusetts and Mountain Energy Partnership, Longmont, Colorado.
Document Type: Subcontract Report
NTIS/GPO Number: 1160178
Subject Code Description: Buildings
Abstract: This report, Evaluation of the Performance of Houses with and without Supplemental Dehumidification in a Hot-Humid Climate, describes a research study that that was conducted by the Building Science Corporation (BSC) Building America Research Team. BSC seeks to research and report on the field monitoring of the performance of in-situ supplemental dehumidification systems in low energy, high performance, homes in a Hot-Humid climate. The purpose of this research project was to observe and compare the humidity control performance of new, single family, low energy, and high performance, homes. Specifically, the study sought to compare the interior conditions and mechanical systems operation between two distinct groups of houses, homes with a supplemental dehumidifier installed in addition to HVAC system, and homes without any supplemental dehumidification. The subjects of the study were ten single-family new construction homes in New Orleans, LA.Data logging equipment was installed at each home in 2012. Interior conditions and various end-use loads were monitored for one year. In terms of averages, the homes with dehumidifiers are limiting elevated levels of humidity in the living space. However, there was significant variation in humidity control between individual houses. An analysis of the equipment operation did not show a clear correlation between energy use and humidity levels. In general, no single explanatory variable appears to provide a consistent understanding of the humidity control in each house. Indoor humidity is likely due to all of the factors we have examined, and the specifics of how they are used by each occupant.
Accession Number: 60968
Library Notes: NPL-1410 REV
Report Numbers: SR-5500-62531; DOE/GO-102014-4480

9.1 MB

PDF: This document is available as an Adobe Acrobat PDF. Download Acrobat Reader.