Journal
BUILDING AND ENVIRONMENT
Volume 54, Issue -, Pages 186-196Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.buildenv.2012.02.019
Keywords
Phase change materials; Validation; Building energy simulation; Building envelope; PCM; Storage
Funding
- U.S. Department of Energy [DE-AC36-08-GO28308]
- National Renewable Energy Laboratory
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Phase change materials (PCMs) represent a technology that may reduce peak loads and HVAC energy consumption in buildings. A few building energy simulation programs have the capability to simulate PCMs, but their accuracy has not been completely tested. This study shows the procedure used to verify and validate the PCM model in Energy Plus using a similar approach as dictated by ASHRAE Standard 140, which consists of analytical verification, comparative testing, and empirical validation. This process was valuable, as two bugs were identified and fixed in the PCM model, and version 7.1 of Energy Plus will have a validated PCM model. Preliminary results using whole-building energy analysis show that careful analysis should be done when designing PCMs in homes, as their thermal performance depends on several variables such as PCM properties and location in the building envelope. (C) 2012 Elsevier Ltd. All rights reserved.
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