بهینه‌سازی فرایند احتراق بویلر نیروگاه بخار بر مبنای مقادیر اتلاف حرارتی و بلودان: یک آنالیز انرژی، اگزرژی و محیط زیستی (3E)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دکتری، گروه مهندسی مکانیک، دانشگاه تربیت مدرس تهران، تهران، ایران

2 دانشجوی دکتری، گروه فنی مهندسی، دانشگاه تهران، کرج، ایران

3 دانشجوی دکتری، گروه فنی مهندسی، دانشگاه علوم و تحقیقات، تهران، ایران

4 کارشناسی، گروه مکانیک، دانشگاه آزاد تهران شمال، تهران، ایران

10.22059/ses.2024.382031.1093

چکیده

در مقالۀ حاضر یک بهینه‌سازی با کنترل دمای مجاز بویلر و دمای نقطۀ شبنم گاز خروجی روی اتلاف‌های حرارتی بویلر نیروگاه شامل سه پارامتر تابش/جابه‌جایی از روی بدنۀ بویلر، بلودان و اتلاف حاصل از گاز (دود) خروجی انجام شده و آثار این‌ بهینه‌سازی روی پارامترهای انرژی، اگزرژی و محیط زیستی (3E) بررسی شد. معادلات حاکم با استفاده از زبان برنامه‌نویسی EES نوشته شده است. نتایج نشان داد بیشترین سهم در مصرف انرژی سوخت ورودی مربوط به کندانسور و مجموعه توربین‌ها به‌ترتیب 47 و 42 درصد است. نسبت نرخ تخریب اگزرژی بویلر به تخریب اگزرژی کل نیروگاه 85 درصد است. محاسبات بهینه‌سازی نشان داد کاهش 3 درصدی در هر یک از مقادیر اتلافات تابش/جابه‌جایی و بلودان سبب کاهش دمای آدیاباتیک به میزان 33 درجۀ سانتی‌گراد و کاهش 6/1 درصدی در مصرف سوخت گاز طبیعی و همچنین، کاهش مقادیر پارامترهای آلودگی شامل NOx، CO، CO2 و هزینۀ انتشار آلودگی به‌ترتیب به میزان 42‌، 8‌، 2/3‌ و 9 درصد شده است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Optimization of Combustion Process of Boiler at Steam Power Plant based on Heat loss and Blowdown Values: an Energy, Exergy and Environmental Analysis (3E)

نویسندگان [English]

  • Reza Babaei Spouei 1
  • Abbas Rahdan 2
  • Saeed Amini 3
  • Amir Hossein Alidadi 4
1 PhD, Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
2 PhD. Student of Science and Engineering, Faculity of Natural Resource,University of Tehran, Karaj, Iran
3 PhD. Student, Science and Research Unit, Faculity of Science and Engineering, Tehran, Iran
4 B.sc of Mechanical Engineering, North Branch, Faculty of Technical Engineering, Tehran, Iran
چکیده [English]

The optimization of the amount of fuel consumed (natural gas) entering the combustion chamber done based on controlling the dew point temperature of the exhaust gas considering the amounts of heat loss and blowdown of boiler. The effect of this optimization was investigated on energy, exergy and environmental parameters (3E). The code of governing equations was written by EES software. The results showed that the largest share in the input fuel energy consumption is for the condenser and turbine by 47 and 42%, respectively and the largest share in the exergy destruction rate is for the boiler by 85%. The optimization calculations showed that a 3% reduction in each of the values ​​of radiation/convection and blowdown losses caused a decrease in the adiabatic temperature by 33 °C and a 1.6% reduction in natural gas fuel consumption, as well as a reduction in the values ​​of pollution parameters including NOx, CO, CO2 and the cost of emission by 42%, 8%, 3.2% and 9% respectively.

کلیدواژه‌ها [English]

  • Exergy
  • Power Plant
  • Loss
  • Blowdown
  • EES

مراجع

[1]        International Energy Institute (IEI). Statistical Review of World Energy 2023. BP Energy Outlook 2023. 2023;70:8–20.
[2]        Yildiz L. Fossil Fuels. In: Comprehensive Energy Systems. Elsevier; 2018. p. 521–67.
[3]        Hajidavalloo E, Vosough A. Energy and exergy analyses of a supercritical power plant. International Journal of Exergy. 2011;9(4):435–52.
[4]        Ahmadi GR, Toghraie D. Energy and exergy analysis of Montazeri Steam Power Plant in Iran. Renewable and Sustainable Energy Reviews. 2016;56:454–63.
[5]        Saidur R, Ahamed JU, Masjuki HH. Energy, exergy and economic analysis of industrial boilers. Energy Policy . 2010;38(5):2188–97.
[6]        Acir A, Bilginsoy AK, Coşkun H. Investigation of varying dead state temperatures on energy and exergy efficiencies in thermal power plant. Journal of the Energy Institute. 2012;85(1):14–21.
[7]        Aljundi IH. Energy and exergy analysis of a steam power plant in Jordan. Applied Thermal Engineering. 2009;29(2–3):324–8.
[8]        Altarawneh OR, Alsarayreh AA, Al-Falahat AM, Al-Kheetan MJ, Alrwashdeh SS. Energy and exergy analyses for a combined cycle power plant in Jordan. Case Studies in Thermal Engineering . 2022;31:101852.
[9]        Mehrpooya M, Sharifzadeh MMM, Mousavi SA. Evaluation of an optimal integrated design multi-fuel multi-product electrical power plant by energy and exergy analyses. Energy. 2019;169:61–78.
[10]      Omidpanah M, Amir S, Elomee A, Malayer MA.. Process Simulation and Extraction of Parameters Affecting the Production Capacity and Efficiency of a . Quarterly Scientific Journal of Technical. 2021;18(3):55–77.
[11]      Kamali K, Saleh M, Jahromi B, Sefid M. Energy and Exergy Analysis of a Direct Solar Steam Power Plant with Solar Parabolic Concentrator for Yazd City with Several Water Preheaters. 2022;19(1):333–55.
[12]      Ganjehkaviri A, Mohd Jaafar MN, Ahmadi P, Barzegaravval H. Modelling and optimization of combined cycle power plant based on exergoeconomic and environmental analyses. Applied Thermal Engineering. 2014;67(1–2):566–78.
[13]      Ahmadi P, Dincer I. Thermodynamic and exergoenvironmental analyses, and multi-objective optimization of a gas turbine power plant. Applied Thermal Engineering. 2011;31(14–15):2529–40.
[14]      Babaei Jamnani M, Kardgar A. Energy-exergy performance assessment with optimization guidance for the components of the 396-MW combined-cycle power plant. Energy Science and Engineering. 2020;8(10):3561–74.
[15]      Khan MN, Tlili I. New advancement of high performance for a combined cycle power plant: Thermodynamic analysis. Case Studies in Thermal Engineering. 2018;12:166–75.
[16]      Jamnani MB, Ting DSK, Carriveau R, Kardgar A. Energy, exergy, environmental (3E) and parametric assessment of a triple-pressure reheat combined-cycle power plant. Journal of Energy Resources Technology, Transactions of the ASME. 2021;143(11).
[17]      Ibrahim TK, Basrawi F, Awad OI, Abdullah AN, Najafi G, Mamat R, et al. Thermal performance of gas turbine power plant based on exergy analysis. Applied Thermal Engineering. 2017;115:977–85.
[18]      Khaliq A, Kumar R, Dincer I. Exergy analysis of an industrial waste heat recovery based cogeneration cycle for combined production of power and refrigeration. Journal of Energy Resources Technology, Transactions of the ASME. 2009;131(2):0224021–9.
[19]      Mohammadi A, Vandani K, Bidi M, Ahmadi F. Exergy analysis and evolutionary optimization of boiler blowdown heat recovery in steam power plants. energy conversion and management. 2015;106:1–9.
[20]      Vakilabadi MA, Bidi M, Naja AF. Energy , Exergy analysis and optimization of solar thermal power plant with adding heat and water recovery system. 2018;171:1639–50.
[21]      Barma MC, Saidur R, Rahman SMA, Allouhi A, Akash BA, Sait SM. A review on boilers energy use , energy savings , and emissions reductions. Renewable and Sustainable Energy Reviews. 2017;79:970–83.
[22]      Imandoust M, Taher Kermani Alghorayshi S, Javidfar M, Asadi B, Jafarinasab M, Qezelbigloo S, et al. Technical-economic analysis and optimization of multiple effect distillation system by solar energy conversion as the heat source. Solar Energy. 2024;280:112859.
[23]      Zahedi R, Abdoos M, Shahee A, Aslani A, Yousefi H. Technical, economic and environmental assessment of carbon capture from thermal power plants and convert it into value added concrete material. Emergent Materials. 2024 Sep 18;1–12.
[24]      Shaghaghi A, Honarvar F, Jafari M, Solati A, Zahedi R, Taghitahoone M. Thermodynamic and thermoeconomic evaluation of integrated hybrid solar and geothermal power generation cycle. Energy Conversion and Management: X. 2024 ;23:100685.
[25]      Alghorayshi STK, Imandoust M, Hemmatzadeh A, Abbasi S, Javidfar M, Seifollahi M, et al. Design, simulation and investigation of the tri-generation process of fresh water, power and biogas using solar thermal energy and sewage sludge. Chemical Engineering Research and Design. 2024;208:242–57.
[26]      Saidur R, Ahamed JU, Masjuki HH. Energy, exergy and economic analysis of industrial boilers. Energy Policy. 2010;38(5):2188–97.
[27]      Kakaee AH, Paykani A, Ghajar M. The influence of fuel composition on the combustion and emission characteristics of natural gas fueled engines. Renewable and Sustainable Energy Reviews. 2014;38:64–78.
[28]      Ciukaj S, Pronobis M. Dew point of the flue gas of boilers co-firing biomass with coal. Chemical and Process Engineering - Inzynieria Chemiczna i Procesowa. 2013;34(1):101–8.
[29]      Palies P. Premixed combustion for combustors. Stabilization and Dynamic of Premixed Swirling Flames. 2020. 57–103 p.
[30]      Chantasiriwan S. Investigation of the use of steam coil preheater to increase the net efficiency of thermal power plant. Case Studies in Thermal Engineering. 2022;38:102344.
[31]      Rizk NK, Mongia HC. Semianalytical correlations for NOx, CO, and UHC emissions. ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition, GT 1992. 1992;3.
[32]      Dincer I, Rosen MA, Ahmadi P. Optimization of Energy Systems. 2015 [cited 2023 Apr 8];472.
[33]      Singh OK, Kaushik SC. VARIABLES INFLUENCING THE EXERGY BASED PERFORMANCE OF A STEAM POWER PLANT. International Journal of Green Energy [No date]. 2013;10(3):257–84.
[34]      Regulagadda P, Dincer I, Naterer GF. Exergy analysis of a thermal power plant with measured boiler and turbine losses. Applied Thermal Engineering. 2010;30(8–9):970–6.
[35]      Ersayin E, Ozgener L. Performance analysis of combined cycle power plants: A case study. Renewable and Sustainable Energy Reviews. 2015;43:832–42.
[36]      Abuelnuor AAA, Saqr KM, Mohieldei n SAA, Dafallah KA, Abdullah MM, Nogoud YAM. Exergy analysis of Garri “2” 180 MW combined cycle power plant. Renewable and Sustainable Energy Reviews. 2017;79:960–9.
[37]      Sabzpooshani M, Azadehfar E, Sardarian S. Exergy Evaluation and Optimization of a New Steam Power Plant Configuration in order to Use the Boiler Blowdown Water. Journal of Energy Management and Technology (JEMT). 2019;3(1):30.
[38]      Mallikharjuna Rao T, Rao SS. A Method to Improve Exergtic Efficiency of Power Plant Cycle by Heat Pipes. International Journal of Applied Engineering Research. 2018;13(1):311–7.
 
فصلنامه سیستم های انرژی پایدار
دوره 3، شماره 4
مهر 1403
صفحه 381-400

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