The Facts about mechanical greese filters

Matti Lehtimäki, Aimo Taipale

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    Many kitchen hood manufacturers claim the efficiency of their grease filters is 90% or higher, and they reference several standards1,2 to support the performance measurements. Unfortunately, none of these standards represents filter performance under cooking conditions. Grease emissions from cooking processes consist of paniculate and vapor. Mechanical grease extractors are effective only at capturing particulate and are not able to extract vapor.

    That is why, theoretically, the maximum grease extractor efficiency cannot exceed the mass fraction of particulates in the total cooking emissions. This maximum efficiency depends on cooking operations and ranges from 2% to 70% for electric ovens and gas broilers, respectively, based on the percentage of vapor in the emissions from cooking operations.
    Original languageEnglish
    Pages (from-to)14-17
    Number of pages4
    JournalASHRAE Journal
    Volume45
    Issue number6
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed

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    Cooking
    Lubricating greases
    Vapors
    Electric ovens
    Kitchens
    Gases

    Cite this

    Lehtimäki, Matti ; Taipale, Aimo. / The Facts about mechanical greese filters. In: ASHRAE Journal. 2003 ; Vol. 45, No. 6. pp. 14-17.
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    abstract = "Many kitchen hood manufacturers claim the efficiency of their grease filters is 90{\%} or higher, and they reference several standards1,2 to support the performance measurements. Unfortunately, none of these standards represents filter performance under cooking conditions. Grease emissions from cooking processes consist of paniculate and vapor. Mechanical grease extractors are effective only at capturing particulate and are not able to extract vapor.That is why, theoretically, the maximum grease extractor efficiency cannot exceed the mass fraction of particulates in the total cooking emissions. This maximum efficiency depends on cooking operations and ranges from 2{\%} to 70{\%} for electric ovens and gas broilers, respectively, based on the percentage of vapor in the emissions from cooking operations.",
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    Lehtimäki, M & Taipale, A 2003, 'The Facts about mechanical greese filters', ASHRAE Journal, vol. 45, no. 6, pp. 14-17.

    The Facts about mechanical greese filters. / Lehtimäki, Matti; Taipale, Aimo.

    In: ASHRAE Journal, Vol. 45, No. 6, 2003, p. 14-17.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - The Facts about mechanical greese filters

    AU - Lehtimäki, Matti

    AU - Taipale, Aimo

    N1 - Project code: G2SU00274

    PY - 2003

    Y1 - 2003

    N2 - Many kitchen hood manufacturers claim the efficiency of their grease filters is 90% or higher, and they reference several standards1,2 to support the performance measurements. Unfortunately, none of these standards represents filter performance under cooking conditions. Grease emissions from cooking processes consist of paniculate and vapor. Mechanical grease extractors are effective only at capturing particulate and are not able to extract vapor.That is why, theoretically, the maximum grease extractor efficiency cannot exceed the mass fraction of particulates in the total cooking emissions. This maximum efficiency depends on cooking operations and ranges from 2% to 70% for electric ovens and gas broilers, respectively, based on the percentage of vapor in the emissions from cooking operations.

    AB - Many kitchen hood manufacturers claim the efficiency of their grease filters is 90% or higher, and they reference several standards1,2 to support the performance measurements. Unfortunately, none of these standards represents filter performance under cooking conditions. Grease emissions from cooking processes consist of paniculate and vapor. Mechanical grease extractors are effective only at capturing particulate and are not able to extract vapor.That is why, theoretically, the maximum grease extractor efficiency cannot exceed the mass fraction of particulates in the total cooking emissions. This maximum efficiency depends on cooking operations and ranges from 2% to 70% for electric ovens and gas broilers, respectively, based on the percentage of vapor in the emissions from cooking operations.

    M3 - Article

    VL - 45

    SP - 14

    EP - 17

    JO - ASHRAE Journal

    JF - ASHRAE Journal

    SN - 0001-2491

    IS - 6

    ER -