تحقیقات موتور

تحقیقات موتور

تحلیل اثر جانمایی پنکة مبدل و چگالنده خودروی نمونه بر روی سامانة خنک‌کاری

نوع مقاله : مقاله پژوهشی

نویسنده
گروه مهندسی مکانیک، دانشگاه ملی مهارت، تهران، ایران
چکیده
خنک‌کاری خودرو‌‌‌‌ با موتور احتراق داخلی همواره مورد بررسی پژوهشگران بوده است. در کار حاضر اثر جانمایی پنکة چگالنده و پنکة مبدل خودروی نمونه بر خنک‌کاری موتور با استفاده از نرم‌افزار KULI بررسی شده است. در ابتدا اطلاعات مرتبط با افت فشارهای ناشی از مجموعه جلوی خودرو و قطعات موجود در محفظة موتور با استفاده از تحلیل سه‌بعدی به دست آورده شده‌اند. سپس اطلاعات مختلف مانند بار حرارتی موتور، میزان شار مایع خنک‌کننده، مشخصات مبدل‌های حرارتی در طرح ساخته شده در نرم‌افزار KULI وارد و نتایج مربوط به دمای مایع خنک‌کاری با نتایج آزمون تجربی انجام شده برای خودروی هدف در شرایط یکسان مورد مقایسه قرار گرفتند. سپس تکثیر جانمایی و حذف پنکة چگالنده، جابه‌جایی پنکة مبدل و استفاده از دو پنکه کوچک‌تر بر روی خنک‌کاری موتور بررسی شد. مطابق نتایج به‌دست‌آمده، حذف و یا استفاده از پنکة چگالنده در قسمت وسط چگالنده، 3 درصد خنک‌کاری موتور را نسبت به حالت فعلی بهبود خواهد داد؛ هرچند که باید تأثیر بر روی عملکرد سامانه‏ تهویه ‌مطبوع نیز مورد بررسی قرار گیرد. استفاده از دو پنکه کوچک‌تر نسبت به استفاده از یک پنکه بزرگ‌تر، اثر قابل‌توجهی بر روی عملکرد خنک‌کاری خودرو نداشته است.
کلیدواژه‌ها

عنوان مقاله English

Analysis of the effect of placement of radiator and condenser fans in a sample vehicle on the cooling system

نویسنده English

Hojjat Saberinejad
Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, Iran
چکیده English

The cooling of vehicle with internal combustion engine has consistently been investigated by researchers. In the present study, the effect of the placement of the condenser fan and radiator fan on the engine cooling of a sample vehicle was examined using KULI software. Initially, information related to pressure drops resulting from the vehicle's front assembly and the components within the engine compartment was obtained through three-dimensional analysis. Subsequently, various data such as the engine's thermal load, coolant flow rate, and specifications of heat exchangers were input into the model constructed in the KULI software, and the results pertaining to the coolant temperature were compared with experimental tests conducted on the target vehicle under identical conditions. Subsequently, the impact of repositioning and removing the condenser fan, relocating the radiator fan, and utilizing two smaller fans on engine cooling was investigated. According to the results obtained, removing the condenser fan or installing it in the middle part of the condenser could improve engine cooling by 3% compared to the current configuration; however, the effect on the performance of the air conditioning system must also be examined. The use of two smaller fans, as opposed to one larger fan, did not have a significant effect on the vehicle's cooling performance.

کلیدواژه‌ها English

Cooling System
Radiator Fan
Condenser Fan
KULI Software
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  • تاریخ دریافت 06 اردیبهشت 1404
  • تاریخ بازنگری 19 اردیبهشت 1404
  • تاریخ پذیرش 01 خرداد 1404