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Title: Performance of Installed Cooking Exhaust Devices

Abstract

The performance metrics of airflow, sound, and combustion product capture efficiency (CE) were measured for a convenience sample of fifteen cooking exhaust devices, as installed in residences. Results were analyzed to quantify the impact of various device- and installation-dependent parameters on CE. Measured maximum airflows were 70% or lower than values noted on product literature for 10 of the devices. Above-the-cooktop devices with flat bottom surfaces (no capture hood) – including exhaust fan/microwave combination appliances – were found to have much lower CE at similar flow rates, compared to devices with capture hoods. For almost all exhaust devices and especially for rear-mounted downdraft exhaust and microwaves, CE was substantially higher for back compared with front burner use. Flow rate, and the extent to which the exhaust device extends over the burners that are in use, also had a large effect on CE. A flow rate of 95 liters per second (200 cubic feet per minute) was necessary, but not sufficient, to attain capture efficiency in excess of 75% for the front burners. A-weighted sound levels in kitchens exceeded 57 dB when operating at the highest fan setting for all 14 devices evaluated for sound performance.

Authors:
; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
Environmental Energy Technologies Division
OSTI Identifier:
1055699
Report Number(s):
LBNL-5265E
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Indoor Air
Additional Journal Information:
Journal Name: Indoor Air
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 03 NATURAL GAS; Carbon monoxide; Natural gas burners; Nitrogen dioxide; Range hood; Task ventilation; Unvented combustion

Citation Formats

Singer, Brett C., Delp, William W., Apte, Michael G., and Price, Philip N. Performance of Installed Cooking Exhaust Devices. United States: N. p., 2011. Web.
Singer, Brett C., Delp, William W., Apte, Michael G., & Price, Philip N. Performance of Installed Cooking Exhaust Devices. United States.
Singer, Brett C., Delp, William W., Apte, Michael G., and Price, Philip N. 2011. "Performance of Installed Cooking Exhaust Devices". United States. https://www.osti.gov/servlets/purl/1055699.
@article{osti_1055699,
title = {Performance of Installed Cooking Exhaust Devices},
author = {Singer, Brett C. and Delp, William W. and Apte, Michael G. and Price, Philip N.},
abstractNote = {The performance metrics of airflow, sound, and combustion product capture efficiency (CE) were measured for a convenience sample of fifteen cooking exhaust devices, as installed in residences. Results were analyzed to quantify the impact of various device- and installation-dependent parameters on CE. Measured maximum airflows were 70% or lower than values noted on product literature for 10 of the devices. Above-the-cooktop devices with flat bottom surfaces (no capture hood) – including exhaust fan/microwave combination appliances – were found to have much lower CE at similar flow rates, compared to devices with capture hoods. For almost all exhaust devices and especially for rear-mounted downdraft exhaust and microwaves, CE was substantially higher for back compared with front burner use. Flow rate, and the extent to which the exhaust device extends over the burners that are in use, also had a large effect on CE. A flow rate of 95 liters per second (200 cubic feet per minute) was necessary, but not sufficient, to attain capture efficiency in excess of 75% for the front burners. A-weighted sound levels in kitchens exceeded 57 dB when operating at the highest fan setting for all 14 devices evaluated for sound performance.},
doi = {},
url = {https://www.osti.gov/biblio/1055699}, journal = {Indoor Air},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 01 00:00:00 EDT 2011},
month = {Tue Nov 01 00:00:00 EDT 2011}
}