Nominal Operating Envelope of Pod and Pen Style Electronic Cigarettes

Many Electronic Nicotine Delivery Systems (ENDS) employ integrated sensors to detect user puffing behavior and activate the heating coil to initiate aerosol generation. The minimum puff flow rate and duration at which the ENDS device begins to generate aerosol are important parameters in quantifying...

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Main Authors: Edward C. Hensel, Nathan C. Eddingsaas, Qutaiba M. Saleh, Shehan Jayasekera, S. Emma Sarles, Mahagani Thomas, Bryan T. Myers, Gary DiFrancesco, Risa J. Robinson
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-08-01
Series:Frontiers in Public Health
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpubh.2021.705099/full
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author Edward C. Hensel
Nathan C. Eddingsaas
Qutaiba M. Saleh
Shehan Jayasekera
S. Emma Sarles
Mahagani Thomas
Bryan T. Myers
Gary DiFrancesco
Risa J. Robinson
author_facet Edward C. Hensel
Nathan C. Eddingsaas
Qutaiba M. Saleh
Shehan Jayasekera
S. Emma Sarles
Mahagani Thomas
Bryan T. Myers
Gary DiFrancesco
Risa J. Robinson
author_sort Edward C. Hensel
collection DOAJ
description Many Electronic Nicotine Delivery Systems (ENDS) employ integrated sensors to detect user puffing behavior and activate the heating coil to initiate aerosol generation. The minimum puff flow rate and duration at which the ENDS device begins to generate aerosol are important parameters in quantifying the viable operating envelope of the device and are essential to formulating a design of experiments for comprehensive emissions characterization. An accurate and unbiased method for quantifying the flow condition operating envelope of ENDS is needed to quantify product characteristics across research laboratories. This study reports an accurate, unbiased method for measuring the minimum and maximum aerosolization puff flow rate and duration of seven pod-style, four pen-style and two disposable ENDS. The minimum aerosolization flow rate ranged from 2.5 to 23 (mL/s) and the minimum aerosolization duration ranged from 0.5 to 1.0 (s) across the ENDS studied. The maximum aerosolization flow rate was defined to be when the onset of liquid aspiration was evident, at flow rates ranging from 50 to 88 (mL/s). Results are presented which provide preliminary estimates for the effective maximum aerosolization flow rate and duration envelope of each ENDS. The variation in operating envelope observed between ENDS products of differing design by various manufacturers has implications for development of standardized emissions testing protocols and data reporting required for regulatory approval of new products.
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spelling doaj.art-273d407cb78949438d4a033f1bf1a5a92022-12-21T18:45:23ZengFrontiers Media S.A.Frontiers in Public Health2296-25652021-08-01910.3389/fpubh.2021.705099705099Nominal Operating Envelope of Pod and Pen Style Electronic CigarettesEdward C. Hensel0Nathan C. Eddingsaas1Qutaiba M. Saleh2Shehan Jayasekera3S. Emma Sarles4Mahagani Thomas5Bryan T. Myers6Gary DiFrancesco7Risa J. Robinson8Department of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY, United StatesDepartment of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, NY, United StatesDepartment of Electrical and Computer Engineering, Rochester Institute of Technology, Rochester, NY, United StatesDepartment of Mechanical and Industrial Engineering, Rochester Institute of Technology, Rochester, NY, United StatesDepartment of Biomedical and Chemical Engineering, Rochester Institute of Technology, Rochester, NY, United StatesDepartment of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, NY, United StatesDepartment of Electrical and Computer Engineering, Rochester Institute of Technology, Rochester, NY, United StatesDepartment of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY, United StatesDepartment of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY, United StatesMany Electronic Nicotine Delivery Systems (ENDS) employ integrated sensors to detect user puffing behavior and activate the heating coil to initiate aerosol generation. The minimum puff flow rate and duration at which the ENDS device begins to generate aerosol are important parameters in quantifying the viable operating envelope of the device and are essential to formulating a design of experiments for comprehensive emissions characterization. An accurate and unbiased method for quantifying the flow condition operating envelope of ENDS is needed to quantify product characteristics across research laboratories. This study reports an accurate, unbiased method for measuring the minimum and maximum aerosolization puff flow rate and duration of seven pod-style, four pen-style and two disposable ENDS. The minimum aerosolization flow rate ranged from 2.5 to 23 (mL/s) and the minimum aerosolization duration ranged from 0.5 to 1.0 (s) across the ENDS studied. The maximum aerosolization flow rate was defined to be when the onset of liquid aspiration was evident, at flow rates ranging from 50 to 88 (mL/s). Results are presented which provide preliminary estimates for the effective maximum aerosolization flow rate and duration envelope of each ENDS. The variation in operating envelope observed between ENDS products of differing design by various manufacturers has implications for development of standardized emissions testing protocols and data reporting required for regulatory approval of new products.https://www.frontiersin.org/articles/10.3389/fpubh.2021.705099/fulloperating envelopeE-cigaretteelectronic nicotine delivery systempod-stylepen-style
spellingShingle Edward C. Hensel
Nathan C. Eddingsaas
Qutaiba M. Saleh
Shehan Jayasekera
S. Emma Sarles
Mahagani Thomas
Bryan T. Myers
Gary DiFrancesco
Risa J. Robinson
Nominal Operating Envelope of Pod and Pen Style Electronic Cigarettes
Frontiers in Public Health
operating envelope
E-cigarette
electronic nicotine delivery system
pod-style
pen-style
title Nominal Operating Envelope of Pod and Pen Style Electronic Cigarettes
title_full Nominal Operating Envelope of Pod and Pen Style Electronic Cigarettes
title_fullStr Nominal Operating Envelope of Pod and Pen Style Electronic Cigarettes
title_full_unstemmed Nominal Operating Envelope of Pod and Pen Style Electronic Cigarettes
title_short Nominal Operating Envelope of Pod and Pen Style Electronic Cigarettes
title_sort nominal operating envelope of pod and pen style electronic cigarettes
topic operating envelope
E-cigarette
electronic nicotine delivery system
pod-style
pen-style
url https://www.frontiersin.org/articles/10.3389/fpubh.2021.705099/full
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