A Compact Coiled Denuder for Atmospheric Sampling

David Y.H. Pul; Charles W. Lewis; Chuen Jinn Tsai; Benjamin Y.H. Liu

doi:10.1021/es00073a003

A Compact Coiled Denuder for Atmospheric Sampling

David Y.H. Pul, Charles W. Lewis, Chuen Jinn Tsai, Benjamin Y.H. Liu

Mechanical Engineering

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32 Scopus citations

Abstract

A compact coiled denuder has been designed and its performance evaluated both theoretically and experimentally. The design is based on special features of laminar flow in a curved tube, which significantly enhance the mass-transfer Sherwood number governing gas collection at the wall. At 10 standard L/min (slpm) the gas collection efficiency for SO₂, using a sodium carbonate/glycerine wall coating, was measured to be 99.3 ± 0.5%, while losses for particles in the range of 0.02–2.5-μm diameter averaged well under 5%.

Original language	English (US)
Pages (from-to)	307-312
Number of pages	6
Journal	Environmental Science and Technology
Volume	24
Issue number	3
DOIs	https://doi.org/10.1021/es00073a003
State	Published - Mar 1 1990

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abstract = "A compact coiled denuder has been designed and its performance evaluated both theoretically and experimentally. The design is based on special features of laminar flow in a curved tube, which significantly enhance the mass-transfer Sherwood number governing gas collection at the wall. At 10 standard L/min (slpm) the gas collection efficiency for SO2, using a sodium carbonate/glycerine wall coating, was measured to be 99.3 ± 0.5%, while losses for particles in the range of 0.02–2.5-μm diameter averaged well under 5%.",

author = "Pul, {David Y.H.} and Lewis, {Charles W.} and Tsai, {Chuen Jinn} and Liu, {Benjamin Y.H.}",

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AU - Pul, David Y.H.

AU - Lewis, Charles W.

AU - Tsai, Chuen Jinn

AU - Liu, Benjamin Y.H.

PY - 1990/3/1

Y1 - 1990/3/1

N2 - A compact coiled denuder has been designed and its performance evaluated both theoretically and experimentally. The design is based on special features of laminar flow in a curved tube, which significantly enhance the mass-transfer Sherwood number governing gas collection at the wall. At 10 standard L/min (slpm) the gas collection efficiency for SO2, using a sodium carbonate/glycerine wall coating, was measured to be 99.3 ± 0.5%, while losses for particles in the range of 0.02–2.5-μm diameter averaged well under 5%.

AB - A compact coiled denuder has been designed and its performance evaluated both theoretically and experimentally. The design is based on special features of laminar flow in a curved tube, which significantly enhance the mass-transfer Sherwood number governing gas collection at the wall. At 10 standard L/min (slpm) the gas collection efficiency for SO2, using a sodium carbonate/glycerine wall coating, was measured to be 99.3 ± 0.5%, while losses for particles in the range of 0.02–2.5-μm diameter averaged well under 5%.

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A Compact Coiled Denuder for Atmospheric Sampling

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