پیوندهای مفید
آمار
| تعداد نشریات | 21 |
| تعداد شمارهها | 687 |
| تعداد مقالات | 9,985 |
| تعداد مشاهده مقاله | 70,959,208 |
| تعداد دریافت فایل اصل مقاله | 62,423,392 |
مطالعه عددی تاثیر طراحی معماری نواحی مختلف پارکینگ در عملکرد سیستم مدیریت دود با استفاده از جت فن در پارکینگ های زیرزمینی | ||
| مدل سازی در مهندسی | ||
| دوره 23، شماره 82، مهر 1404، صفحه 253-266 اصل مقاله (943.03 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22075/jme.2024.33856.2656 | ||
| نویسندگان | ||
| سعید حضرتی چاخیرلو* ؛ عبدالناصر عمرانی؛ بهنام حیدری؛ رقیه مطلب زاده | ||
| دانشکده مهندسی مکانیک، دانشکده فنی و مهندسی دانشگاه آزاد اسلامی تبریز، تبریز، ایران | ||
| تاریخ دریافت: 04 اردیبهشت 1403، تاریخ بازنگری: 25 آذر 1403، تاریخ پذیرش: 01 دی 1403 | ||
| چکیده | ||
| جت فنها یکی از تجهیزات متداول در پارکینگهای زیرزمینی هستند که در صورت بروز حریق، برای کاهش دود استفاده میشوند. زمانی که سنسورها حریق را در یک منطقه خاص تشخیص میدهند، جت فنها فعال شده و دود را به سرعت به سمت شفتهای خروجی هدایت میکنند. با این حال، در برخی حالتها، جت فنهای قرار گرفته در نواحی بن بست، جریان هوا را شبیه به یک نازل بزرگ به سمت بخش مرکزی پارکینگ هدایت میکنند. جریان هوای پرسرعت تولید شده توسط این جت فنها میتواند جریان ناشی از سایر جتفنها را مختل کرده و دود را به نواحی عاری از دود هدایت کند. این تحقیق به بهبود کنترل سیستم مدیریت دود در مناطق حیاتی پارکینگهای زیرزمینی، به ویژه در نزدیکی نواحی بن بست، با معرفی طرحهای نوآورانه جتفن میپردازد. این مطالعه از نرمافزار OpenFOAM با حلگر Boussinesq Pimple FOAM و ادغام معادله غلظت دوده برای ارزیابی کارایی این روش استفاده کرده است. در این تحقیق، اثرات قطر و شکل نازل جت فن، تعداد جت فنها، و نواحی بنبست در معماری پارکینگ بر انتشار غلظت دوده در داخل پارکینگ بررسی شده است. نتایج نشان داده است که افزایش قطر نازل باعث کاهش غلظت دوده تا حدود 35% میشود. افزایش تعداد جت فن تأثیر زیادی ندارد و استفاده از نوع جدید نازل میتواند از پخش دوده به نواحی عاری از دود جلوگیری کند. این میزان کاهش دوده برای جت فن جدید طراحی شده در حدود 50% است. | ||
| کلیدواژهها | ||
| جت فن؛ کنترل دوده؛ نواحی بن بست؛ سیستم مدیریت دود؛ شبیه سازی عددی؛ اپنفوم | ||
| عنوان مقاله [English] | ||
| A Numerical Study of the Effect of the Architectural Design of Different Parking Areas on the Performance of the Smoke Management System Using Jet Fans in Underground Parking Lots | ||
| نویسندگان [English] | ||
| Saeed Hazrati Chakheirlou؛ Abdolnaser Omrani؛ Behnam Heydari؛ Roghayeh Motallebzadeh | ||
| Department of Mechanic, Islamic Azad University of Tabriz, Tabriz, Iran | ||
| چکیده [English] | ||
| Jet fans are one of the common equipment in underground car parks that are used to reduce smoke in case of a fire. When sensors detect a fire in a specific area, the jet fans are activated and quickly direct the smoke towards the exit shafts. However, in some cases, jet fans located in dead-end areas redirect the airflow towards the central section of the parking lot resembling a large nozzle. The high-speed airflow generated by these jet fans can disrupt the flow from other jet fans and direct the smoke to smoke-free areas. This research focuses on improving smoke management systems in critical areas of underground car parks, especially near dead-end areas, by introducing innovative jet fan designs. The study uses the OpenFOAM software with the Boussinesq Pimple FOAM solver and incorporates the smoke concentration equation to evaluate the efficiency of this method. In this research, the effects of nozzle diameter and shape, the number of jet fans, and dead-end areas in the parking lot architecture on smoke concentration dispersion inside the parking lot have been investigated. The results show that increasing the nozzle diameter reduces smoke concentration by up to 35%. Increasing the number of jet fans has little effect, and using a new type of nozzle can prevent smoke diffusion to smoke-free areas. The smoke reduction for the newly designed jet fan is around 50%. | ||
| کلیدواژهها [English] | ||
| Jet fan, Smoke control, Dead-end areas, Smoke management system, Numerical simulation, OpenFOAM | ||
| مراجع | ||
|
[1] Su, Zhihe, Yanfeng Li, Hua Zhong, Junmei Li, Zhicheng Guo, Xin Yang, and Shi Yang. "Advancements in smoke control strategies for metro tunnel cross-passage: A theoretical and numerical study on critical velocity and driving force." Tunnelling and Underground Space Technology 147 (2024): 105734. [2] Zhao, Shengzhong, Haoran Yang, Ying Zhen Li, Haukur Ingason, and Fang Liu. "Theoretical and numerical study on smoke descent during tunnel fires under natural ventilation condition." Tunnelling and Underground Space Technology 142 (2023): 105414. [3] Nematollahi Sarvestani, Amir, and Pierpaolo Oreste. "Effects of the ventilation system by using jet fans during a fire in road tunnels." Applied Sciences 13, no. 9 (2023): 5618. [4] Chawla, Shriya Kaur, and Vinayak Malhotra. " Jet fans as Stratified Tunnel Fire Suppressants." In Journal of Physics: Conference Series ,Vol. 2054, no. 1, p. 012001. IOP Publishing, 2021. [5] Di Matteo, Silvia. "Fire risk of electric vehicles in confined spaces." PhD diss., Politecnico di Torino, 2023. [6] Qian, Chenghao, Hongyuan Ding, Jianghui Xie, Xiaomei Jiang, Qinpei Chen, Yanjun Chen, Changcheng Liu, and Que Huang. "A review on the transport law and control method of fire smoke from energy storage system in tunnels." Journal of Energy Storage 73 (2023): 108929. [7] Çakir, M., and Ç. Ün. "CFD Analysis of Smoke and Temperature Control System of Car Park Area with Jet Fans." J. Eng. Res. Rep 13 (2020): 27-40. [8] Choi, Jongrak, Nahmkeon Hur, Seongwon Kang, Eun Dok Lee, and Kwang-Bum Lee. "A CFD simulation of hydrogen dispersion for the hydrogen leakage from a fuel cell vehicle in an underground parking garage." International Journal of Hydrogen Energy 38, no. 19 (2013): 8084-8091. [9] Matsuura, Kazuo, Masami Nakano, and Jun Ishimoto. "Forced ventilation for sensing-based risk mitigation of leaking hydrogen in a partially open space." International Journal of Hydrogen Energy 35, no. 10 (2010): 4776-4786. [10] Huang, Hong, Ryozo Ooka, Hong Chen, and Shinsuke Kato. "Optimum design for smoke-control system in buildings considering robustness using CFD and Genetic Algorithms." Building and Environment 44, no. 11 (2009): 2218-2227. [11] Viegas, João Carlos. "The use of impulse ventilation for smoke control in underground car parks." Tunnelling and Underground Space Technology 25, no. 1 (2010): 42-53. [12] Viegas, João Carlos. "The use of impulse ventilation to control pollution in underground car parks." International Journal of Ventilation 8, no. 1 (2009): 57-74. [13] Špiljar, Željko, Miodrag Drakulić, and Daniel Rolph Schneider. "Analysis of jet fan ventilation system installed in an underground car park with partition walls." Journal of Sustainable Development of Energy, Water and Environment Systems 6, no. 2 (2018): 228-239. [14] Kmecová, Miroslava, Michal Krajčík, and Zuzana Straková. "Designing jet fan ventilation for an underground car park by CFD simulations." Periodica Polytechnica Mechanical Engineering 63, no. 1 (2019): 39-43. [15] Barsim, Mohsen M., Magdy A. Bassily, Hesham M. El-Batsh, Yaser A. Rihan, and Magda M. Sherif. "Performance of impulse ventilation system in an underground car park fire: Case study." Journal of Building Engineering 29 (2020): 101162. [16] Lu, S., Y. H. Wang, R. F. Zhang, and H. P. Zhang. "Numerical study on impulse ventilation for smoke control in an underground car park." Procedia Engineering 11 (2011): 369-378. [17] Nazari, Ata, Alireza Anvari, Saeed Hazrati Chakheirlou, and Mohammadreza Abdoli Afnan. "Do ceiling fans in rooms help to reduce or disperse the transmission of breathing aerosols?." International Journal of Air-Conditioning and Refrigeration 32, no. 1 (2024): 12. [18] Nazari, Ata, Jiarong Hong, Farzad Taghizadeh-Hesary, and Farhad Taghizadeh-Hesary. "Reducing virus transmission from heating, ventilation, and air conditioning systems of urban subways." Toxics 10, no. 12 (2022): 796. [19] Murthy, B. N., and J. B. Joshi. "Assessment of standard k–ε, RSM and LES turbulence models in a baffled stirred vessel agitated by various impeller designs." Chemical Engineering Science 63, no. 22 (2008): 5468-5495. [20] Sleiti, A. K., and J. S. Kapat. "Comparison between EVM and RSM turbulence models in predicting flow and heat transfer in rib-roughened channels." In Heat Transfer Summer Conference, vol. 46911, pp. 531-542. 2004. [21] Hao, Huali, Cheuk Lun Chow, and Denvid Lau. "Effect of Heat Flux on Combustion of Different Wood Species." Fuel 278 (2020): 118325. [22] Martinka, Jozef, Peter Rantuch, Filip Martinka, Igor Wachter, and Tomáš Štefko. "Improvement of heat release rate measurement from woods based on their combustion products temperature rise." Processes 11, no. 4 (2023): 1206. [23] Kim, Taehoon. "Modeling of wood crib fires using a detailed pyrolysis model." Thermal Science and Engineering Progress 47 (2024): 102339. [24] Nazari, Ata, Moharram Jafari, Naser Rezaei, Farzad Taghizadeh-Hesary, and Farhad Taghizadeh-Hesary. "Jet fans in the underground car parking areas and virus transmission." Physics of Fluids 33, no. 1 (2021).
| ||
|
آمار تعداد مشاهده مقاله: 387 تعداد دریافت فایل اصل مقاله: 208 |
||