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Title: Validation of an inverse model of zone air heat balance

Journal Article · · Building and Environment
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  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
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Our work introduces the validation method and results of an inverse model of zone air heat balance. The inverse model, implemented in EnergyPlus and published in a previous article [1], calculates highly uncertain model parameters such as internal thermal mass and infiltration airflow by inversely solving the zone air heat balance equation using the easy-to-measure zone air temperature data. The paper provides technical details of validation from the experiments using LBNL's Facility for Low Energy eXperiment in Buildings (FLEXLAB) that measures zone air temperature under the controlled experiment of two levels of internal mass and four levels of infiltration airflow. The simulation results of the zone infiltration airflow and internal thermal mass from the inverse model agree well with the measured data from the FLEXLAB experiments. The validated inverse model in EnergyPlus can be utilized to enhance the energy modeling of existing buildings that enables energy performance assessments for energy efficiency improvements.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1572834
Alternate ID(s):
OSTI ID: 2325344
Journal Information:
Building and Environment, Vol. 161, Issue C; ISSN 0360-1323
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

Figures / Tables (14)

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Table 2(p. 19)table Table 2
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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
Inverse model
EnergyPlus
Energy simulation
Internal thermal mass
Infiltration
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