Development of Advanced Smart Ventilation Controls for Residential Applications

Walker, Iain; Less, Brennan; Lorenzetti, David; Sohn, Michael D.

doi:10.3390/en14175257

Development of Advanced Smart Ventilation Controls for Residential Applications

Journal Article · Wed Aug 25 00:00:00 EDT 2021 · Energies

DOI:https://doi.org/10.3390/en14175257· OSTI ID:1815109

; Less, Brennan; Lorenzetti, David; Sohn, Michael D.

This study examined the use of zoned ventilation systems using a coupled CONTAM/EnergyPlus model for new California dwellings. Several smart control strategies were developed with a target of halving ventilation-related energy use, largely through reducing dwelling ventilation rates based on zone occupancy. The controls were evaluated based on the annual energy consumption relative to continuously operating non-zoned, code-compliant mechanical ventilation systems. The systems were also evaluated from an indoor air quality perspective using the equivalency approach, where the annual personal concentration of a contaminant for a control strategy is compared to the personal concentration that would have occurred using a continuously operating, non-zoned system. Individual occupant personal concentrations were calculated for the following contaminants of concern: moisture, CO2, particles, and a generic contaminant. Zonal controls that saved energy by reducing outside airflow achieved typical reductions in ventilation-related energy of 10% to 30%, compared to the 7% savings from the unzoned control. However, this was at the expense of increased personal concentrations for some contaminants in most cases. In addition, care is required in the design and evaluation of zonal controls, because control strategies may reduce exposure to some contaminants, while increasing exposure to others.

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1815109

Alternate ID(s):: OSTI ID: 1823056

Journal Information:: Energies, Journal Name: Energies Journal Issue: 17 Vol. 14; ISSN 1996-1073; ISSN ENERGA

Publisher:: MDPI AGCopyright Statement

Country of Publication:: Switzerland

Language:: English

References (10)

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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
contaminant emissions
controls
indoor air quality
residential
simulations
smart ventilation
zoning

Development of Advanced Smart Ventilation Controls for Residential Applications

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References (10)

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