Measured performance of filtration and ventilation systems for fine and ultrafine particles and ozone in an unoccupied modern California house
Abstract
This study evaluated nine ventilation and filtration systems in an unoccupied 2006 house located 250 m downwind of the I-80 freeway in Sacramento, California. Systems were evaluated for reducing indoor concentrations of outdoor particles in summer and fall/winter, ozone in summer, and particles from stir-fry cooking. Air exchange rate was measured continuously. Energy use was estimated for year-round operation in California. Exhaust ventilation without enhanced filtration provided indoor PM 2.5 that was 70% lower than outdoors. Supply ventilation with MERV13 filtration provided slightly less protection, whereas supply MERV16 filtration reduced PM 2.5 by 97-98% relative to outdoors. Supply filtration systems used little energy but provided no benefits for indoor-generated particles. Systems with MERV13-16 fil ter in the recirculating heating and cooling unit (FAU) operating continuously or 20 min/h reduced PM 2.5 by 93-98%. Across all systems, removal percentages were higher for ultrafine particles and lower for black carbon, relative to PM 2.5 . Indoor ozone was 3-4% of outdoors for all systems except an electronic air cleaner that produced ozone. Filtration via the FAU or portable filtration units lowered PM 2.5 by 25-75% when operated over the hour following cooking. The energy for year-round operation of FAU filtration with an efficient blowermore »
- Authors:
-
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office
- OSTI Identifier:
- 1439221
- Alternate Identifier(s):
- OSTI ID: 1401253
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Indoor Air
- Additional Journal Information:
- Journal Volume: 27; Journal Issue: 4; Related Information: © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd; Journal ID: ISSN 0905-6947
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
Citation Formats
Singer, B. C., Delp, W. W., Black, D. R., and Walker, I. S. Measured performance of filtration and ventilation systems for fine and ultrafine particles and ozone in an unoccupied modern California house. United States: N. p., 2016.
Web. doi:10.1111/ina.12359.
Singer, B. C., Delp, W. W., Black, D. R., & Walker, I. S. Measured performance of filtration and ventilation systems for fine and ultrafine particles and ozone in an unoccupied modern California house. United States. https://doi.org/10.1111/ina.12359
Singer, B. C., Delp, W. W., Black, D. R., and Walker, I. S. Mon .
"Measured performance of filtration and ventilation systems for fine and ultrafine particles and ozone in an unoccupied modern California house". United States. https://doi.org/10.1111/ina.12359. https://www.osti.gov/servlets/purl/1439221.
@article{osti_1439221,
title = {Measured performance of filtration and ventilation systems for fine and ultrafine particles and ozone in an unoccupied modern California house},
author = {Singer, B. C. and Delp, W. W. and Black, D. R. and Walker, I. S.},
abstractNote = {This study evaluated nine ventilation and filtration systems in an unoccupied 2006 house located 250 m downwind of the I-80 freeway in Sacramento, California. Systems were evaluated for reducing indoor concentrations of outdoor particles in summer and fall/winter, ozone in summer, and particles from stir-fry cooking. Air exchange rate was measured continuously. Energy use was estimated for year-round operation in California. Exhaust ventilation without enhanced filtration provided indoor PM 2.5 that was 70% lower than outdoors. Supply ventilation with MERV13 filtration provided slightly less protection, whereas supply MERV16 filtration reduced PM 2.5 by 97-98% relative to outdoors. Supply filtration systems used little energy but provided no benefits for indoor-generated particles. Systems with MERV13-16 fil ter in the recirculating heating and cooling unit (FAU) operating continuously or 20 min/h reduced PM 2.5 by 93-98%. Across all systems, removal percentages were higher for ultrafine particles and lower for black carbon, relative to PM 2.5 . Indoor ozone was 3-4% of outdoors for all systems except an electronic air cleaner that produced ozone. Filtration via the FAU or portable filtration units lowered PM 2.5 by 25-75% when operated over the hour following cooking. The energy for year-round operation of FAU filtration with an efficient blower motor was estimated at 600 kWh/year.},
doi = {10.1111/ina.12359},
journal = {Indoor Air},
number = 4,
volume = 27,
place = {United States},
year = {Mon Dec 05 00:00:00 EST 2016},
month = {Mon Dec 05 00:00:00 EST 2016}
}
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Works referencing / citing this record:
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