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Masonry fireplace emissions test method: Repeatability and sensitivity to fueling protocol.

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  • 1Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, 24061-0238, Blacksburg, Virginia, USA.

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|November 15, 2013
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Summary
This summary is machine-generated.

A new test method for masonry fireplaces accurately measures carbon monoxide (CO) and particulate matter (PM) emissions. A modified fueling protocol significantly reduces CO and PM emission factors and rates.

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Area of Science:

  • Environmental Science
  • Combustion Science
  • Air Quality

Background:

  • Masonry fireplaces are a significant source of indoor air pollution, emitting carbon monoxide (CO) and particulate matter (PM).
  • Accurate measurement of these emissions is crucial for developing effective emission control strategies and assessing health impacts.
  • Existing test methods may be cumbersome, requiring appliance weighing for fuel loading determination.

Purpose of the Study:

  • To evaluate a novel test method for quantifying CO and PM emission rates and factors from masonry fireplaces.
  • To assess the intralaboratory repeatability of the developed test method.
  • To investigate the influence of fueling protocols on fireplace emissions.

Main Methods:

  • The study involved testing six different masonry fireplace configurations using the evaluated test method.
  • Intralaboratory repeatability was assessed through multiple tests on each fireplace.
  • A modified fueling protocol was compared against standard protocols to determine its effect on emissions.

Main Results:

  • The test method successfully determined CO and PM emission rates (g/h) and factors (g/kg) without requiring appliance weighing.
  • The intralaboratory repeatability for PM rates showed a high-to-low ratio averaging 1.17, indicating good consistency.
  • A modified fueling protocol reduced CO and PM emission factors by approximately 40% and emission rates by 0-30%.

Conclusions:

  • The evaluated test method provides a reliable and efficient means for measuring masonry fireplace emissions.
  • Fueling protocol significantly impacts fireplace emissions, with a modified approach offering substantial reductions in both CO and PM.
  • Further research into fuel properties' influence on emission variations is warranted.