A fume hood is a device that safely exhausts harmful substances generated during the experimental process to the outside, and for the safety of researchers and the protection of experimental samples, the balance between the amount of air flowing in and the speed at which it is discharged to the outside is extremely important. The Face velocity of the fume hood is recommended to be 0.5m/s (ASHRAE 110-2016) specified by the American National Standards Institute (ANSI). The Korea Occupational Safety and Health Corporation specifies 0.4 m/s (KOSHA-G-7-1999). To increase the functionality of the fume hood, it must be operated 24 hours a day while maintaining the prescribed Face velocity to make a safe laboratory environment. However, constantly powering them consumes a significant amount of electrical energy. Therefore, it's crucial to make efforts to reduce energy consumption. Some labs have adopted a method to minimize electrical usage by powering the hoods only when they're in use. In that case, it should be done with great caution. Because hazardous substances inside the hood could be leaked, putting the entire lab at risk. By implementing such measures, organizations and institutions managing lab facilities can effectively reduce energy consumption while ensuring the use of safe fume hoods. Additionally, there's a growing trend in research facilities to maintain Face velocity of fume hoods below 0.25 m/s as part of efforts to decrease and conserve electrical energy. This study stems from preliminary research aimed at achieving a stable face velocity in fume hoods. In this study, to reduce the face velocity of the fume hood, we changed the structural design of the fume hood based on existing research. As a result, the face velocity of the fume hood is reduced from 0.5 m/s to 0.297 m/s. the study reduced the face velocity to a maximum of 0.297m/s. To verify the performance of the fume hood with minimum face velocity, we tested the ventilation performance with the international standard test method. It proves that the fume hood with face velocity 0.297 m/s make no differences compared to existing fume hood with higher face velocity. In addition, the fume hood with minimum face velocity enables the reduction of energy consumption.
Keywords
Fume Hood, Face Velocity, Energy Saving, Laboratory Safety, Design Improvement.
Ha HC (2010), " A Study on the Suitability of the Control Flow Rate of the Hood of Local Exhaust System”, 2010-72-889, KOSHA, http://oshri.kosha.or.kr. 5p. 21p. 145p https://oshri.kosha.or.kr/oshri/publication/researchReportSearch.do?mode=view&articleNo=63081
Rie DH (1997), " Implementation and innovation of an industrial ventilation facilities.". SAREK J, 26 (2): 67-75. https://scienceon.kisti.re.kr/commons/util/originalView.do?cn=JAKO199722454382632&oCn=JAKO199722454382632&dbt=JAKO&journal=NJOU00290364
Kim JN (2022), A Study on laboratory space plan for enhanced safety, korea university, A master's thesis. 13p. 72p.
H.-J. Jang, C.-H. Lee, C.-M. Kim, and K.-C. Kim, “Design of BLDC Motor for Air Conditioning and Reduction of Torque Ripple with Slot Asymmetric Application,” The Journal of Innovation Industry Technology, vol. 1, no. 2, pp. 25–31, Sep. 2023, doi: 10.60032/jiit.2023.1.2.25.
Park JC (2003), A Study on the Improvement Strategies for Exhaust Performance in Commercial Kitchen Hoods, SAREK, Vol.15, No.5, pp439-445, https://scienceon.kisti.re.kr/commons/util/originalView.do?cn=JAKO200311921641399&dbt=JAKO&koi=KISTI1.1003%2FJNL.JAKO200311921641399
Park GD (2017), A Study on the Safety Facility Standardization for Chemical Laboratory using Anthropometry, Graduate School, Myongji University. 43p. 111p.
An JS (2023), Evaluation of Airborne Infection Risk according to Operation of Mechanical Ventilation and Recirculation Airflow System, University of Seoul, A master's thesis. 29p.
Park IK (2011), The Current Status of Occupational Health Management of University Laboratories. Graduate School of Public Health, Daegu Haany University. 14p.
Y.-H. Kim and J. Lee, “Technology and Service Trends for Ensuring Safety in Smart Manufacturing,” The Journal of Innovation Industry Technology, vol. 1, no. 3, pp. 123–128, Dec. 2023, doi: 10.60032/jiit.2023.1.3.123.
S.-C. Lee, Y.-Y. Ok, and S.-G. Yoo, “Local Exhaust Ventilation Characteristics of Limestone Dust by Model Experiments and Numerical Simulation,” Journal of the Korean Society of Mineral and Energy Resources Engineers, vol. 50, no. 5, pp. 660–666, Oct. 2013, doi: 10.32390/ksmer.2013.50.5.660.
Lim KB, Choi SK (2001), Numerical study of a flow field in a fume hood, Hanbat National University Transactions of Institute for Foundational Technology for Production, Vol.1, No, 1 pp.55~62 http://imgsvr.riss4u.net/contents/kdam4/A/8715/0101/8715010108.pdf
Kim JH (2016), A Study on the Classification of Hazardous Explosion Area and Management Measures in Laboratories Handling the Flammable Liquids, Seoul National University of Science and Technology, A master's thesis. 31p.
Kim YS, Oh YK (2008), A Study on Improvement of Industrial Hood in Ventilation System for Elimination of Harmful Material and Dust, KSMTE, Vol. 20, No. 4, pp .238~244. 2008, https://scienceon.kisti.re.kr/commons/util/originalView.do?cn=JAKO200817154052493&dbt=J AKO&koi =KI STI1.1003%2 FJNL.JAKO200817154052493
Han DH, Park MK (2005), Development of Basic Local Exhaust Ventilation System for Experimental Education, JEHS Vol. 31, No. 5, pp 372~378, 2005, https://scienceon.kisti.re.kr/commons/util/originalView.do?cn=JAKO200503018449615&dbt=JAKO&koi=KIST I1.1003%2FJNL. JAKO200503018449615
J.-H. Jung, S.-W. Lee, S.-M. Lee, B.-H. Shon, J.-H. Lee, and Y.-J. Jung, “Improvement of Capturing Velocity in the Fume Hood using Computational Fluid Dynamics(I) - Uniform flow,” Journal of the Korea Academia-Industrial cooperation Society, vol. 14, no. 2, pp. 962–969, Feb. 2013, doi: 10.5762/kais.2013.14.2.962.
H. Kim and K. Jeong, “Development of an Automatic Face Velocity Controller for a Fume Hood System,” Journal of The Korean Society of Manufacturing Technology Engineers, vol. 22, no. 2, pp. 304–309, Apr. 2013, doi: 10.7735/ksmte.2013.22.2.304.
I.-K. Park, S.-W. Lee, J.-H. Jung, and Y. G. Phee, “A Study on the Status of Management for Personal Protective Equipments & Fume Hoods in University Research Laboratories,” Journal of Korean Society of Occupational and Environmental Hygiene, vol. 24, no. 2, pp. 229–237, Jun. 2014, doi: 10.15269/jksoeh.2014.24.2.229.
Park JC(2009), A Numerical Analysis for the Performance Improvement of Fume hood Exhaust Air using an Air-Curtain, Hanyang University, A master’s thesis. 5p
Noh TK(2021), A Study on the Characteristics of Etching Process Fume by Functional Change of Semiconductor Local Exhaust System, Korea National University of Transportation, A master's thesis. 15p UCI : I804:43010-200000500860.
E. Mills and D. Sartor, “Energy use and savings potential for laboratory fume hoods,” Energy, vol. 30, no. 10, pp. 1859–1864, Jul. 2005, doi: 10.1016/j.energy.2004.11.008.
P. J. Witt, C. B. Solnordal, L. J. Mittoni, S. Finn, and J. Pluta, “Optimising the design of fume extraction hoods using a combination of engineering and CFD modelling,” Applied Mathematical Modelling, vol. 30, no. 11, pp. 1167–1179, Nov. 2006, doi: 10.1016/j.apm.2006.02.003.
“Flow and Containment Characteristics of a Sash-less, Variable-Height Inclined Air-Curtain Fume Hood,” The Annals of Occupational Hygiene, Mar. 2013, doi: 10.1093/annhyg/met011.
European Committee for Standardization (CEN). EN 14175: Laboratory furniture - Fume cupboards - Safety and performance requirements. Brussels: CEN; [2003]. https://www.cencenelec.eu/areas-of-work/cen-cenelec-topics/
American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). ASHRAE 110-2016: Method of testing performance of laboratory fume hoods. Atlanta: ASHRAE; 2016.https://www.ashrae.org/search?q=ASHRAE-110-2016
Open Access This article is licensed under a Creative Commons Attribution NoDerivs is a more restrictive license. It allows you to redistribute the material commercially or non-commercially but the user cannot make any changes whatsoever to the original, i.e. no derivatives of the original work. To view a copy of this license, visit https://creativecommons.org/licenses/by-nc-nd/4.0/
Cite this article
YoungJin Son and Sungmin Bae, “Study on Fume Hood Improvements for Energy Savings and Minimum Face Velocity”, Journal of Machine and Computing, pp. 669-682, July 2024. doi: 10.53759/7669/jmc202404064.
