بررسی افت فشار جریان تراکم ناپذیر مغشوش در اریفیس‌های صنعتی چند

نوع مقاله: پژوهشی

نویسندگان

دانشگاه کاشان

چکیده

در این تحقیق افت فشار جریان آب عبوری از اریفیس‌های صنعتی چند مرحله‌ای نصب شده در داخل یک لوله در نیروگاه حرارتی 1300 مگاواتی شازند اراک، مورد بررسی قرار گرفته است. با توجه به مغشوش بودن جریان آب، برای مدلسازی از مدل استاندارد استفاده شده است. به منظور دست یافتن به یک افت فشار خاص در یک دبی آب مشخص ورودی به لوله، بر اساس ترکیبی از تعداد مراحل اریفیس‌ها به همراه تغییر در تعداد سوراخ‌ها و نیز قطر آنها یک طراحی بهینه انجام شده است. در نهایت به منظور بررسی صحت نتایج بدست آمده از مدلسازی فوق، با ساخت اریفیس‌های مذکور و نصب آنها در لوله مورد نظر، نتایج حل عددی با نتایج واقعی بدست آمده در نیروگاه مقایسه شده که تطابق قابل قبولی بین آنها مشاهده شده است. لازم به ذکر است این افت فشار به بازشدن بیشتر شیرهای کنترلی پس از آن منجر می‌شود که تأثیر زیادی در کاهش خوردگی این شیرها و عملکرد مناسب‌تر آنها دارد.

کلیدواژه‌ها


عنوان مقاله [English]

A Study of Investigation and Experimental Comparison Result of the Incompressible Turbulent Flow Pressure Drop through the Multistage Industrial orifices

نویسندگان [English]

  • Majid Moradi bastani
  • Ghanbar Ali Sheikhzadeh
چکیده [English]

This research has been investigated water pressure drop through the multistage industrial orifices that are installed into a pipe in 1300 MW Arak-Shazand Thermal Power Plant. Whereas having turbulence flow done simulating model was standard . In order to reach a specific water pressure drop with a specific water flow rate, the optimum design is implemented based on the composition of orifice stage’s number along with changing the diameter of the holes and number’s. Finally to verification of simulation’s results, it will be compared with results of experimental test that is done with multistage orifices installed into a pipe. That could be illustrated good adjustment with together. Also this pressure drop lead to increase the percentage’s opening spray control valves that has extreme influence to decrease corrosion and better work of control valves.

کلیدواژه‌ها [English]

  • Numerical simulation
  • Multistage Industrial orifices
  • Incompressible Turbulent Flow
  • Pressure drop
 
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]25[ صنیعی نژاد، مهدی. (1388)، مبانی جریان­های آشفته و مدلسازی آن­ها (از مفاهیم مقدماتی تا اصول کاربردی)، انتشارات دانش نگار.