حساسیت سنجی مکان ورودی و خروجی هوا بر میزان انتقال ذرات در اتاق اداری با استفاده از روش تاگوچی و آنالیز واریانس

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده فنی و مهندسی، دانشگاه بجنورد، بجنورد، ایران

2 مرکز مطالعات و همکاری‌های بین‌المللی وزارت علوم، تحقیقات و فناوری، تهران، ایران

3 دانشکده مکانیک و هوافضا، دانشگاه کلارکسون، نیویورک، آمریکا

چکیده

در پژوهش حاضر با استفاده از روش تاگوچی و آنالیز واریانس، میزان حساسیت انتشار ذرات داخل اتاق به موقعیت مکانی دریچه ورودی و خروجی هوا مورد بررسی قرار گرفت. به این منظور تعداد 86400 ذره با اندازه یک میکرومتر در فاصله‌های زمانی یکسان به‌صورت همگن از دریچه ورودی به داخل اتاق تزریق گردید و موقعیت‌های مختلفی برای دریچه ورودی (32 موقعیت) و دریچه خروجی (4 موقعیت) بر روی سقف و کف اتاق در نظر گرفته شد. سپس رفتار ذره و میزان ته نشینی و ماندگاری ذره داخل اتاق برای یک دوره زمانی 60 ثانیه ای با استفاده از روش شبکه بولتزمن  چند زمانه مورد بررسی قرار گرفت. با استفاده از روش تاگوچی و آرایه‌های متعامد L16، تعداد آزمایش‌های مورد نیاز به اندازه هشت برابر کاهش یافت. تمامی آزمایش‌های مشخص شده از آرایه متعامد شبیه‌سازی و مقدار ذرات معلق در فضای اتاق اندازه‌گیری شد. پس از انجام آزمایش‌ها، بر اساس عاملی به نام نسبت سیگنال به نویز و آنالیز واریانس داده‌ها، میزان اثرگذاری هر پارامتر بر خروجی مسئله مشخص گردید. با توجه به نتایج بدست آمده موقعیت طولی دریچه ورودی هوا با سهم 84/42 درصد بیشترین تاثیر را بر میزان ذرات معلق در اتاق داشت. همچنین کمترین تاثیر را موقعیت ارتفاع دریچه خروجی هوا با سهم 0/16 درصد دارد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Sensitivity Analysis of the Location of Inlet and Outlet Air on the Particle Transmission in a Modeled Room Utilizing Taguchi Method and ANOVA

نویسندگان [English]

  • Hasan Sajjadi 1 2
  • S. Nader Nabavi 1 2
  • Goodarz Ahmadi 3 2
  • Amin Amiri Delouei 1 2
  • Hooman Naeimi 1 2
1 Faculty of Engineering, University of Bojnord, Bojnord, Iran|Center for International Scientific Studies and Collaboration, Ministry of Science, Research and Technology, Tehran, Iran
2 Faculty of Engineering, University of Bojnord, Bojnord, Iran|Center for International Scientific Studies and Collaboration, Ministry of Science, Research and Technology, Tehran, Iran
3 Department of Mechanical and Aerospace Engineering, Clarkson University, Potsdam, USA|Center for International Scientific Studies and Collaboration, Ministry of Science, Research and Technology, Tehran, Iran
چکیده [English]

In the present study, the sensitivity of particle dispersion within a room to the spatial position of the inlet and outlet air register was investigated using the Taguchi method and analysis of variance (ANOVA). For this purpose, a total of 86400 particles with a size of 1µm were uniformly injected from the inlet register into the room at equal time intervals. Different positions for the inlet register (32 positions) and outlet register (4 positions) on the ceiling and floor of the room were considered. Subsequently, the behavior of the particles, as well as the particle deposition and dispersion within the room over a 60-second time period, were examined using the multi-relaxation time lattice Boltzmann method. By employing the Taguchi method and L16 orthogonal arrays, the required number of experiments was reduced by 1/8. All specified experiments that were suggested by the orthogonal array were simulated, and the number of suspended particles in the room was measured. Following the experiments, the effects of each parameter on the output of the problem were determined based on a factor called the signal-to-noise (S/N) ratio and analysis of variance. According to the obtained results, the longitudinal position of the inlet register had the highest impact on the number of suspended particles in the room, accounting for 84.42% contribution. Additionally, the vertical position of the outlet register had the least impact, contributing only 0.16%.

کلیدواژه‌ها [English]

  • ANOVA
  • Taguchi method
  • Sensitivity Analysis
  • Particle Dispersion

مراجع

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نشریه مهندسی مکانیک امیرکبیر
دوره 56، شماره 1
1403
صفحه 57-80

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