تحقیقات موتور

تحقیقات موتور

شبیه‌سازی غیرفعال‌سازی استوانه‏‎ ‎و تأثیرات آن بر آلایندگی و مصرف سوخت

نوع مقاله : مقاله پژوهشی

نویسندگان
گروه مهندسی مکانیک، دانشگاه فنی و حرفه‌ای، تهران، ایران
چکیده
افزایش دمای کره زمین در اثر افزایش آلایندگی­‌ها باعث شده است تا محققان جهت تنظیم دمای کره زمین و کاهش مصرف سوخت و آلایندگی‌ها راهکار‌هایی ارائه دهند. غیرفعال نمودن یک یا چند استوانه‏ یکی از راهکار‌های کاهش آلایندگی و مصرف سوخت است. در این مقاله غیرفعال‌سازی استوانه‏ و تأثیر آن بر عملکرد موتور XU7 به‌ویژه آلایندگی و مصرف سوخت، با نرم‌افزار GT-Power شبیه‌سازی و بررسی گردید. نتایج به‌دست‌آمده از شبیه‌سازی با نتایج آزمایشگاهی موجود مقایسه شد و پس از اطمینان از صحت سنجی الگو، غیرفعال‌سازی یک استوانه‏ ‌با قطع یک افشانه‏ شبیه‌سازی و نتایج به‌دست‌آمده با نتایج حالت عادی مقایسه شده است. نتایج شبیه‌سازی حاکی از کاهش مصرف سوخت و آلایندگی در حالت عملکرد موتور با سه استوانه‏ ‌فعال نسبت به عملکرد موتور با چهار استوانه‏ فعال است و مقایسه نتایج شبیه‌سازی سه استوانه‏ فعال با حالت عادی نشان داد که به ترتیب مقدار آلایندگی‌های مونو‌کسیدکربن ویژة ترمزی، هیدرو‌کربن ویژة ترمزی و اکسید ازت ویژة ترمزی به‌صورت میانگین 5.15، 1.17 و 11.42 درصد کاهش یافته است و میانگین دی‌اکسیدکربن ویژة ترمزی با غیر فعال‌سازی استوانه‏ تغییر محسوسی نداشته است و مصرف سوخت ویژة ترمزی، به‌صورت میانگین کاهش 2.03 درصدی را به همراه داشته است.
کلیدواژه‌ها

عنوان مقاله English

Simulation of cylinder deactivation and its effects on emission and fuel consumption

نویسندگان English

Meysam Mafakheri
Hossein Rahimi Asiabaraki
Hossein Lori Alikhani
Hani Emami
Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, Iran
چکیده English

The increase in the temperature of the earth due to the increase in pollutants has caused researchers to provide solutions to control the temperature of the earth and reduce fuel consumption and emissions. Deactivating one or more cylinders is one of the ways to reduce emissions and fuel consumption. In this study, cylinder deactivation and its effect on XU7 engine performance, especially emissions and fuel consumption, were simulated with GT-Power software. The results obtained from the simulation were compared with the existing laboratory results, and after ensuring the validity of the model, the deactivation of a cylinder by cutting off a simulation injector and the obtained results were compared with the results of the normal state. The simulation results indicate a reduction in fuel consumption and emissions in the engine operation mode with three active cylinders compared to the engine operation with four active cylinders, and the comparison of the simulation results of three active cylinders with the normal mode showed that, respectively, the amount of brake specific carbon monoxide, brake specific hydrocarbon and brake specific nitrogen oxide have decreased by an average of 5.15, 1.17 and 11.42 percent, and the average brake-specific carbon dioxide has not changed significantly with cylinder deactivation, and the brake specific fuel consumption has decreased by an average of 2.03 percent.

کلیدواژه‌ها English

Cylinder Deactivation
Emission
Brake Specific Fuel Consumption
GT-Power
XU7 Engine
[1] Heywood, J. Internal Combustion Engine Fundamentals 2E. McGraw-Hill Education, 2018.
[2] KUNT MA. Analysis of engine and powertrain losses of a passenger type 4-stroke gasoline vehicle in 4 different driving cycles with GT-SUITE vehicle simulation program. International Journal of Automotive Science and Technology. 2022 Oct 1;6(4):340-6. doi: 10.30939/ijastech..1152980
[3] Mashadi B, Maleki A. Influence of cylinder deactivation technology on fuel consumption and emissions of four-cylinder spark ignition engine. Engine Research. 2022 Nov 27;35(35):41-51. [In Persian]
[4] Pishgooie M, Kakai AH. The Effect of Using Variable Valve System on XU7/L3 Engine. Engine Research. 2022 Nov 27;21(21):58-72. [In Persian]
[5] Momennia A, Mohammad Ibrahim A. The Effect of Cylinder Deactivation on the Performance Parameters of a Bi-fuel Engine. Engine research. 2020;57(57):41-9.
[6] Wilcutts M, Switkes J, Shost M, Tripathi A. Design and benefits of dynamic skip fire strategies for cylinder deactivated engines. SAE International Journal of Engines. 2013 May 1;6(1):278-88. doi: 10.4271/2013-01-0359
[7] Hu M, Chang S, Xu Y, Liu L. Study on valve strategy of variable cylinder deactivation based on electromagnetic intake valve train. Applied Sciences. 2018 Oct 31;8(11):2096. doi: 10.3390/app8112096
[8] Boretti A, Scalco J. Piston and valve deactivation for improved part load performances of internal combustion engines. SAE Technical Paper; 2011 Apr 12. doi: 10.4271/2011-01-0368
[9] Liu Y, Kuznetsov A, Sa B. Simulation and Analysis of the impact of cylinder deactivation on fuel saving and emissions of a medium-speed high-power diesel engine. Applied Sciences. 2021 Aug 19;11(16):7603. doi: 10.3390/app11167603
[10] Hamid I, Said MF, Soid SN, Nasution H. Effect of cylinder deactivation strategies on engine performances using one-dimensional simulation technique. Jurnal teknologi. 2016 Aug 16;78(8-4). doi: 10.11113/jt.v78.9584
[11] Clenci A, Iorga-Siman V, Draghici M. Overview on the Cylinder Deactivation techniques. Scientific Bulletin. 2021;XXVII:1-10. doi: 10.26825/bup.ar.2021.005
[12] Campos CH, Hanriot SD, Amorim RJ, Mazzaro RS. Cylinder deactivation strategy for fuel consumption reduction. Journal of the Brazilian Society of Mechanical Sciences and Engineering. 2022 Nov;44(11):547. doi: 10.1007/s40430-022-03847-7
[13] Ritzmann J, Zsiga N, Peterhans C, Onder C. A control strategy for cylinder deactivation. Control Engineering Practice. 2020 Oct 1;103:104566. doi: 10.1016/j.conengprac.2020.104566
[14] Shin H, Jung D, Han M, Hong S, Han D. Minimization of torque deviation of cylinder deactivation engine through 48V mild-hybrid starter-generator control. Sensors. 2021 Feb 18;21(4):1432. doi: 10.3390/s21041432
[15] Bech A, Shayler PJ, McGhee M. The effects of cylinder deactivation on the thermal behaviour and performance of a three cylinder spark ignition engine. SAE International Journal of Engines. 2016 Dec 1;9(4):1999-2009. doi: 10.4271/2016-01-2160
[16] Schaeffler, KG. Solving the Powertrain Puzzle: 10th Schaeffler Symposium April 3/4, 2014. doi: 10.1007/978-3-658-06430-3
[17] Lee N, Park J, Lee J, Park K, Choi M, Kim W. Estimation of fuel economy improvement in gasoline vehicle using cylinder deactivation. Energies. 2018 Nov 8;11(11):3084. doi: 10.3390/en11113084
[18] Zhao J, Xi Q, Wang S, Wang S. Improving the partial-load fuel economy of 4-cylinder SI engines by combining variable valve timing and cylinder-deactivation through double intake manifolds. Applied Thermal Engineering. 2018 Aug 1;141:245-56. doi: 10.1016/j.applthermaleng.2018.05.087
[19] Said MF, Aziz AB, Latiff ZA, Andwari AM, Soid SN. Investigation of cylinder deactivation (CDA) strategies on part load conditions. SAE Technical Paper; 2014 Oct 13. doi: 10.4271/2014-01-2549
[20] Talati H, Aliakbari K, Ebrahimi-Moghadam A, Farokhad HK, Nasrabad AE. Optimal design and analysis of a novel variable-length intake manifold on a four-cylinder gasoline engine. Applied Thermal Engineering. 2022 Jan 5;200:117631. doi: 10.1016/j.applthermaleng.2021.117631

  • تاریخ دریافت 06 خرداد 1403
  • تاریخ بازنگری 22 مرداد 1403
  • تاریخ پذیرش 23 مرداد 1403