Static Condition Differences in Conventional and Inclined Air-Curtain Range Hood Flow and Spillage Characteristics

Huang, Rong Fung; Nian, You-Cyun; Chen, Jia-Kun

doi:10.1089/ees.2010.0059

Cited by 26 publications

(10 citation statements)

References 7 publications

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“…2 ). For comparison, the data for the IAC and conventional range hoods were quoted from Huang et al 20 , 21 ) . The conventional range hood has a very low robustness.…”

Section: Resultsmentioning

confidence: 99%

“…Huang et al . 20 , 21 ) represented an inclined air-curtain (IAC) range hood which was designed by combining a suction slot installed at the hood and a plane jet arranged at the front part of the countertop to form a backward-inclined push-pull air curtain. They showed that the IAC range hood has higher performance than the conventional range hoods under both the static and dynamic tests.…”

Section: Introductionmentioning

confidence: 99%

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Flow Characteristics and Robustness of an Inclined Quad-vortex Range Hood

Chen

Huang

2014

Ind Health

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A novel design of range hood, which was termed the inclined quad-vortex (IQV) range hood, was examined for its flow and containment leakage characteristics under the influence of a plate sweeping across the hood face. A flow visualization technique was used to unveil the flow behavior. Three characteristic flow modes were observed: convex, straight, and concave modes. A tracer gas detection method using sulfur hexafluoride (SF6) was employed to measure the containment leakage levels. The results were compared with the test data reported previously in the literature for a conventional range hood and an inclined air curtain (IAC) range hood. The leakage SF6 concentration of the IQV range hood under the influence of the plate sweeping was 0.039 ppm at a suction flow rate of 9.4 m3/min. The leakage concentration of the conventional range hood was 0.768 ppm at a suction flow rate of 15.0 m3/min. For the IAC range hood, the leakage concentration was 0.326 ppm at a suction flow rate of 10.9 m3/min. The IQV range hood presented a significantly lower leakage level at a smaller suction flow rate than the conventional and IAC range hoods due to its aerodynamic design for flow behavior.

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“…2 ). For comparison, the data for the IAC and conventional range hoods were quoted from Huang et al 20 , 21 ) . The conventional range hood has a very low robustness.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Flow Characteristics and Robustness of an Inclined Quad-vortex Range Hood

Chen

Huang

2014

Ind Health

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“…The inclined air-curtain was installed in front of the range hood to separate the cook and the pollutant generated from the pans of heating oil. For static tests 20 ) , the detected tracer-gas concentration of the conventional range hood was larger than that of the air-curtain range hood by about three orders of magnitude around the front edge of countertop. No significant spillages of oil fumes or tracer-gas concentration was observed or detected around the front and lateral planes of the air-curtain range hood.…”

Section: Introductionmentioning

confidence: 89%

“… 18 ) investigated the performance of a wall-mounted range hood with laser-assisted flow visualization in static conditions (the draft of the environment was controlled) and dynamic conditions (humans walking by). A novel design of a range hood was reported by Huang et al 20 , 21 ) . A range hood with the installed inclined air-curtain was called the inclined air-curtain range hood.…”

Section: Introductionmentioning

confidence: 99%

Flow characteristics of an inclined air-curtain range hood in a draft

Chen

2015

INDUSTRIAL HEALTH

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The inclined air-curtain technology was applied to build an inclined air-curtain range hood. A draft generator was applied to affect the inclined air-curtain range hood in three directions: lateral (θ=0°), oblique (θ=45°), and front (θ=90°). The three suction flow rates provided by the inclined air-curtain range hood were 10.1, 10.9, and 12.6 m3/min. The laser-assisted flow visualization technique and the tracer-gas test method were used to investigate the performance of the range hood under the influence of a draft. The results show that the inclined air-curtain range hood has a strong ability to resist the negative effect of a front draft until the draft velocity is greater than 0.5 m/s. The oblique draft affected the containment ability of the inclined air-curtain range hood when the draft velocity was larger than 0.3 m/s. When the lateral draft effect was applied, the capture efficiency of the inclined air-curtain range hood decreased quickly in the draft velocity from 0.2 m/s to 0.3 m/s. However, the capture efficiencies of the inclined air-curtain range hood under the influence of the front draft were higher than those under the influence of the oblique draft from 0.3 m/s to 0.5 m/s.

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“…Huang et al 19,20 • Upward air curtain Figure 11: ceiling-mounted air conditioners, 62 wall-mounted air conditioners, 63 and movable air conditioners. 64 As illustrated in the figure, conditioned air may interact with an air curtain and the airflow to a range hood.…”

Section: Ref Air Curtain Schematic Air Curtain Detailsmentioning

confidence: 99%

Indoor thermal environment and air quality in Chinese‐style residential kitchens

et al. 2020

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This paper reviews the published literature on indoor thermal environment and air quality in Chinese‐style residential kitchens (CRKs). The paper first discusses typical characteristics of CRKs, including kitchen layout, cooking methods, and ventilation systems used. Next, the paper describes the current state of the indoor thermal environment and air quality in CRKs. Finally, this paper summarizes measures to control and improve the environment inside CRKs. The results indicate that the indoor environment of CRKs is too hot in summer and exhibits a large vertical temperature difference. No appropriate model was available for accurately evaluating the thermal environment in CRKs. At the same time, CRKs are highly polluted by COx, NOx, TVOC, and particulate matter (PM). Although existing exhaust hoods could improve the indoor environment to some extent, the use of a combined exhaust, make‐up air, and air‐conditioning system should be considered to provide a comfortable and healthy environment in CRKs.

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Static Condition Differences in Conventional and Inclined Air-Curtain Range Hood Flow and Spillage Characteristics

Cited by 26 publications

References 7 publications

Flow Characteristics and Robustness of an Inclined Quad-vortex Range Hood

Flow Characteristics and Robustness of an Inclined Quad-vortex Range Hood

Flow characteristics of an inclined air-curtain range hood in a draft

Indoor thermal environment and air quality in Chinese‐style residential kitchens

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