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Title: Building America Case Study: Evaluation of the Performance of Houses With and Without Supplemental Dehumidification in a Hot-Humid Climate, New Orleans, Louisiana (Fact Sheet)

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 clearmore » 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.« less
Publication Date:
OSTI Identifier:
1163801
Report Number(s):
DOE/GO-102014-4481
KNDJ-0-40337-00
DOE Contract Number:
AC36-08GO28308
Resource Relation:
Related Information: Technology Solutions for New and Existing Homes, Energy Efficiency & Renewable Energy (EERE); Work performed by Building Science Corporation (BSC), Westford, Massachusettes
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Building Technologies Office
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; RESIDENTIAL BUILDINGS; HUMIDITY CONTROL; MONITORING; TEMPERATURE MEASUREMENT RESIDENTIAL; RESIDENTIAL BUILDINGS; BSC; BUILDING AMERICA; NEW ORLEANS; HOT-HUMID; SUPPLEMENTAL DEHUMIDIFICATION; HUMIDITY CONTROL; SINGLE FAMILY HOUSES; NEW CONSTRUCTION; DATALOGGING; MONITORING; INTERIOR CONDITIONS; WHOLE HOUSE DEHUMIDIFIER; STAND ALONE DEHUMIDIFIER; TEMPERATURE MEASUREMENTS; RELATIVE HUMIDITY MEASUREMENTS; ENERGY USE MEASUREMENTS