Measured Pollutant Performance of Island Overhead Kitchen Exhaust

Measured Pollutant Performance of Island Overhead Kitchen Exhaust

TitleMeasured Pollutant Performance of Island Overhead Kitchen Exhaust
Publication TypeConference Paper
Year of Publication2018
AuthorsIain S Walker, Gabriel Rojas, Jordan D Clark
Conference Name39th AIVC Conference
Keywordsindoor air quality, Kitchen ventilation, Range hoods, Source reduction
Abstract

Cooking is one of the most substantial sources of indoor air pollution in most residences.This is mitigated most often by exhaust devices located near cooking surfaces. In this study,we measured the efficacy of one type of kitchen ventilation device: an island overheadkitchen exhaust. Laboratory tests using tracer gas capture were performed on a full-scalemock-up of a kitchen with a cooktop in an island. The results show that the CaptureEfficiency (CE) varies greatly from about 10% to nearly 100%. CE generally increased withexhaust flow rate, but results did not show clear trends when changing hood mountingheight or the power input to the cooktop burners. Burner power had an effect on measuredcapture efficiency of the same magnitude as exhaust flow rate. As with earlier work on wallmountexhaust hoods, these results indicate that standardized testing will have to clearlyspecify mounting heights, power input (and or temperatures) and the geometry of thetracer gas emitter.

LBNL Report Number

2001248