Track: Fundamentals and Applications
Sponsor: 4.3 Ventilation Requirements and Infiltration, SSPC62.2
Chair: Steven J. Emmerich, Fellow ASHRAE, National Institute of Standards and Technology, Gaithersburg, MD

People spend the majority of their time at home and, as a result, that is where indoor air quality (IAQ) improvements have the potential to yield the largest health and comfort benefits. This seminar presents the results of the latest research and development in controlling residential pollutant sources including information on avoiding transfer of garage contaminants into living space, opportunities and limitations for improved air cleaning in houses, the development of smart range hoods and evaluation of lowcost IAQ monitors

1. Keeping the Car out of the Living Room: What Works (RP-1450)
Paul W. Francisco, Member, University of Illinois at Urbana-Champaign, Champaign, IL
Attached garages are a staple of convenience in many homes. However, this leads to the potential for contaminants from vehicles and products stored in the garages to migrate into the home, potentially impacting the health of the residents. This presentation reviews the results from ASHRAE RP-1450 which evaluated the effectiveness of various strategies at minimizing contaminant transfer from garages to homes, including sealing of the garage, sealing of any ducts in the garage, passive ventilation and garage exhaust ventilation with several control strategies. Factors influencing the effectiveness and suggested solutions that could be adopted into standards will be discussed.

2. The Limitations and Opportunities for Filtration and Air Cleaning in Residences
Jeffrey Siegel, Ph.D., Fellow ASHRAE, University of Toronto, Toronto, ON, Canada Particles are an important indoor air contaminant and filtration/air cleaning is one approach used to control particles in residences. Central filtration is appealing because of its simplicity and large flow rates. However, many residential systems lack the duty cycle and filtration efficiency (or lack forced air systems altogether) to address most contaminants. This has led many consumers to use portable air cleaners. Like central filtration, these devices suffer from a variety of issues. This presentation focuses on both, exploring these limitations as well as suggesting approaches to use filtration well in residences.

3. Is a Two Hundred Dollar Indoor Air Quality Monitor Good Enough to Keep You Safe?
Brett Singer, Ph.D., Member, LBNL, Berkeley, CA
Indoor air quality monitors based on low-cost sensors are now available for under $200. These devices report measurements of temperature, relative humidity and concentrations of one or more air pollutants. LBNL conducted experiments to determine how well these consumer-grade monitors detect and quantify concentrations of particles emitted from various common indoor sources. The output of low-cost monitors was compared to mass-based measurements using a Federal Equivalent Method and several research-grade light scattering monitors. This presentation presents results and discusses implications for using low-cost particle sensors to protect IAQ in homes.

4. Development of a Smart Range Hood
Mike Moore, P.E., Associate Member, Newport Partners LLC, Loveland, CO
Consumer surveys show that range hoods are seldom used and investigations into residential IAQ point to cooking activities as one of the largest sources of indoor pollutants. What if we could develop a smart range hood that could sense critical pollutants and automatically respond to them, delivering kitchen ventilation quietly, efficiently and cost effectively? DOE is funding research into the development and demonstration of a smart range hood that has this as its objective. This presentation provides an update on the project status.

Presented: Sunday, January 21, 2018, 3:15-4:45 PM
Run Time: 90 min.

This is a zip file that consists of PowerPoint slides synchronized with the audio-recording of the speaker (recorded presentation), PDF files of the slides, and audio only (mp3) for each presentation.