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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title = "The Facts about mechanical greese filters",
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 -