بررسی اثر شرایط محیطی و نوع سوخت بر روی پارامترهای انرژی و اگزرژی یک نیروگاه بخار

نوع مقاله : مقاله علمی

نویسندگان
رضا بابایی 1
میثم محمودی 2
محسن کیامنصوری 3
میلاد خانچوپان 4
الهام مقدم نیا 5
1 دکتری، گروه مهندسی مکانیک، دانشگاه تربیت مدرس تهران، تهران، ایران
2 کارشناسی ارشد، گروه مهندسی مکانیک، دانشگاه ولایت، ایرانشهر، ایران
3 کارشناسی ارشد، گروه مهندسی مکانیک، دانشگاه آزاد نوشهر، نوشهر، ایران
4 کارشناسی ، گروه فنی مهندسی ، دانشگاه ارومیه، ارومیه، ایران
5 کارشناسی ارشد، گروه مفنی و مهندسی، دانشگاه آزاد تهران، تهران، ایران
10.22034/stme.2025.482810.1083
چکیده
به دلیل وجود منابع گازی متفاوت در مناطق مختلف کشور، گاز طبیعی برداشت‌شده دارای ارزش حرارتی متفاوتی است که در عملکرد نیروگاه تأثیر بسزایی دارد. در تحقیق حاضر اثر گاز طبیعی استخراج شده در نواحی مختلف ایران شامل خانگیران، کنگان، پارس، بیدبلند، اهواز و سرخس بر روی نیروگاه بخار رامین اهواز بررسی گردید. مدل‌سازی سیکل نیروگاه با استفاده از نرم‌افزار EES انجام شده و اثر پارامترهای مؤثر مانند دمای محیط و رطوبت نسبی بر توان تولیدی، نرخ تخریب اگزرژی، راندمان انرژی و اگزرژی بررسی شده است. میزان هوای اضافی برای تأمین دمای 2000 درجه سانتی‌گراد شعله بین 12 تا 5/17 درصد برای مناطق مختلف محاسبه شد. بررسی افزایش دما از 5 تا 40 درجه سانتی‌گراد نشان داد که توان خروجی خالص نیروگاه 14 مگاوات کاهش و نرخ تخریب اگزرژی در کندانسور به میزان 16 مگاوات افزایش می‌یابد. در دمای 25 درجه سانتی‌گراد نرخ تخریب اگزرژی بیشینه مربوط به شهر بیدبلند با 500 مگاوات و کمترین نرخ مربوط به شهر سرخس با 370 مگاوات می‌باشد. با افزایش دما، میزان کاهش راندمان‌های انرژی و اگزرژی برای رطوبت پایین (0%) به ترتیب 7/4 درصد و 4 درصد و برای رطوبت اشباع (100%) به ترتیب 9 درصد و 3/8 درصد می‌باشد که این نشان‌دهنده اثر تخریبی رطوبت محیط بر روی عملکرد نیروگاه است.
کلیدواژه‌ها
آنالیز انرژی و اگزرژی
نیروگاه بخار
گاز طبیعی
نرخ تخریب اگزرژی
EES
موضوعات

عنوان مقاله English

Investigating the effect of environmental conditions and fuel type on the energy and exergy parameters of a steam power plant

نویسندگان English

Reza Babaei 1
Meysam Mahmoudi 2
Mohsen Kiamansouri 3
Milad Khanchoupan 4
Elham Moghadamnia 5
1 1- PhD, Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran.
2 Department of Mechanical Engineering, Velayat University, Iranshahr, Iran
3 Department of Mechanical Engineering, Islamic Azad University, Noushahr, Iran.
4 Departeman of chemical engineering, faculty of engineering, university of urmia, urmia, iran.
5 M.Sc, Department of Technology Management, Science and Research Branch, Islamic Azad University, Tehran, Iran.
چکیده English

Due to the existence of various gas sources in various regions of the country, the extracted natural gas has different heat value, which has a significant impact on the performance of the power plant. In the current research, the effect of natural gas extracted in various regions of Iran, including Khangiran, Kangan, Pars, Bidboland, Ahvaz and Sarakhs on Ramin Ahvaz steam power plant was investigated. Power plant cycle modeling has been done using EES software and the effect of parameters such as ambient temperature and relative humidity on net power, exergy destruction rate, energy and exergy efficiency has been investigated. The amount of additional air to provide the flame temperature of 2000 °C was calculated between 12 and 17.5% for various regions. Investigating the increase in temperature from 5 to 40 °C showed that the net power output of the power plant decreases to 14 MW and of the exergy destruction rate in the condenser increases to 16 MW. At 25 °C, the maximum exergy destruction rate is related to Bidbland region with 500 MW and the lowest rate is related to Sarakhs region with 370 MW. For low relative humidity, the reduction of energy and exergy efficiency is 4.7% and 4%, respectively, and for saturated humidity, it is 9% and 8.3%, respectively, which it indicates the increasing effect of ambient humidity with increasing temperature.

کلیدواژه‌ها English

Energy and exergy analysis
steam power plant
natural gas
exergy destruction rate
EES
Dynamic Analysis
Gearbox
Remaining Useful Life Vibration Analysis
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  • تاریخ دریافت 03 آبان 1403
  • تاریخ بازنگری 02 دی 1403
  • تاریخ پذیرش 29 دی 1403
  • تاریخ اولین انتشار 29 دی 1403
  • تاریخ انتشار 29 دی 1403