Period verification device for ventilation rate standard rods based on a digital thermal flowmeter

• Autorzy: Hu Jiacheng , Sha Ying , Cai Jinhui , Liu Ying , Liu Suijun

Identyfikatory

DOI

10.24425/mms.2022.138543

• Języki publikacji: EN

Abstrakty

EN

Ventilation rate is a physical index that is strictly controlled during cigarette manufacturing because an abnormal ventilation rate can affect the release of mainstream smoke, tar, and other components harmful to human health. Therefore, the standard rod is used for measuring the ventilation rate, which necessitates accurate and effective periodic inspections. In this study, we designed and built a set of special tobacco ventilation rate standard rods to assess the standard device during its verification period and used a digital thermal flowmeter as the flow standard.We determined the micro-pressure adjustment interval through fluid simulation, and conducted an experimental verification based on the simulation results. At the adjustment point where the differential pressure value was 0 Pa, the period verification device was tested under the standard values of 27.38%, 58.83%, and 71.95%. The results show that the measurement errors of the device are -0.42%, 0.55%, and -0.13% respectively, which all meet the verification regulation requirements and indicate that the device is applicable in practical situations.

Słowa kluczowe

EN

ventilation rate standard rod; period verification; numerical simulation; digital thermal flowmeter; micro-pressure difference adjustment

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2022
• Tom: Vol. 29, nr 1
• Strony: 231--244
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Hu Jiacheng

• China Jiliang University, NO.258 XueYuan Street, Hangzhou, China

autor

Sha Ying

• China Jiliang University, NO.258 XueYuan Street, Hangzhou, China

autor

Cai Jinhui

• China Jiliang University, NO.258 XueYuan Street, Hangzhou, China

autor

Liu Ying

• Nanyang Cigarette Factory of Henan China Tobacco Industry, No. 6 Xinhua East Road, Nanyang, China

autor

Liu Suijun

• Nanyang Cigarette Factory of Henan China Tobacco Industry, No. 6 Xinhua East Road, Nanyang, China

Bibliografia

• [1] Pang, Y., et al. (2012). The effect of ventilation dilution on cigarette combustion temperature and the release of main harmful components in mainstream smoke. Tobacco Science and Technology, 11, 29-32. (in Chinese)
• [2] Purkis, W., Mueller, C., Intorp, M., & Seidel H. (2010). The influence of cigarette designs and smoking regimes on vapour phase. Beiträge zur Tabakforschung/Contributions to Tobacco Research, 24(1), 33-46. https://doi.org/10.2478/cttr-2013-0879
• [3] Jamil, H. J., Albahri, M. R. A., Al-Noor, N. H., Al-Noor, T. H., Heydari, A. R., Rajan, A. K., Arnetz, J., Arnetz, B., & Tawfiq, L. N. M. (2020). Hookah smoking with health risk perception of different types of tobacco. Journal of Physics: Conference Series, 1664(1), 012127. https://doi.org/10.1088/1742-6596/1664/1/012127
• [4] JJG (Tobacco) 17-2002, Verification Regulations tor Tobacco Ventilation Rate Standard Rods, (in Chinese)
• [5] Guo, J., & Heslop, M. (2004). Diffusion problems of soap-film flowmeter when measuring very low-rate gas flow. Flow Measurement and Instrumentation, 15(5), 331-334. https://doi.org/10.1016/j.flowmeasinst.2004.06.002
• [6] Kutin, J., Bobovnik, G., & Bajsić, I. (2013). Dynamic pressure corrections in a clearance-sealed piston prover for gas flow measurements. Metrologia, 50(1), 66. https://doi.org/10.1088/0026-1394/50/1/66
• [7] Bobovnik, G., & Kutin, J. (2019). Experimental identification and correction of the leakage flow effects in a clearance-sealed piston prover. Metrologia, 56(1), 015013. https://doi.org/10.1088/1681-7575/aaf5b3
• [8] Kutin, J., Bobovnik, G., & Bajsić, I. (2015). Heat exchange effects on the performance of a clearance-sealed piston prover for gas flow measurements. Metrologia, 52(6), 857. https://doi.org/10.1088/0026-1394/52/6/857
• [9] Yan, R., & Xu, Z. (2017). Research on humidity compensation scheme of PVTt method gas flow standard device. China Metrology, (06), 92-93. https://10.16569/j.cnki.cn11-3720/t.2017.06.030 (in Chinese)
• [10] Colard, S., Trinkies, W., Cholet, G., Camm, B., Austin, M., & Gualandris, R., (2004). Compensation for the effects of ambient conditions on the calibration of multi-capillary pressure drop standards. Beiträge zur Tabakforschung/Contributions to Tobacco Research, 21(3), 167-174. https://doi.org/10.2478/cttr-2013-0777
• [11] Jiang, Z., Ding, X., Zhao, H., & Su, Z. (2012). Research on pressure drop transfer standard based on CFD. Advanced Materials Research, 1898, 542-543. https://doi.org/10.4028/www.scientific.net/AMR.542-543.1105
• [12] Cheng, J. (2015). Numerical simulation of internal flow of several tobacco-specific standard devices [Doctoral dissertation]. China Jiliang University. (in Chinese)
• [13] Kazemi, A., Van de Riet, K., & Curet, O. (2017). Hydrodynamics of mangrove-type root models: the effect of porosity, spacing ratio and flexibility. Bioinspiration & Biomimetics, 12(5), 1-24. https://doi.org/10.1088/1748-3190/aa7ccf

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).