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The Effect of N-Heptane-Tetrahydrofuran Mixtures on Combustion, Performance and Emissions in a Homogeneous Charge Compression Ignition Engine

Year 2021, , 1033 - 1043, 01.09.2021
https://doi.org/10.2339/politeknik.796099

Abstract

In this study, a single cylinder homogeneous charge compression ignition engine with port injection system was used. By spraying reference n-heptane and tetrahydrofuran-n-heptane blends from the low pressure port injector, a homogeneous mixture was prepared during the intake and compression period. In-cylinder pressure, heat release rate, start of combustion, CA50, combustion duration, indicated thermal efficiency, maximum pressure rise rate analysis were done and hydrocarbon and carbon monoxide emissions were determined. In lean mixing conditions, the pressure and heat release rate in the cylinder decreased with all test fuels. The addition of tetrahydrofuran to the reference n-heptane fuel enabled the combustion processes to be controlled. The maximum indicated thermal efficiency was obtained as 38.14 % at 1.9 lambda with THF60 fuel. Addition of tetrahydrofuran to n-heptane fuel slowed down the combustion. Thus, low temperature combustion was completed in a longer period. Under extremely lean operating conditions, hydrocarbon and carbon monoxide emissions of n-heptane-tetrahydrofuran fuel mixtures increased compared to the reference fuel. The highest pollutant emissions have been achieved with THF60 fuel. Compared to the reference fuel, hydrocarbon and carbon monoxide increased by an average of 8.3 % and 54 %.

References

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Homojen Dolgulu Sıkıştırma ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi

Year 2021, , 1033 - 1043, 01.09.2021
https://doi.org/10.2339/politeknik.796099

Abstract

Bu çalışmada tek silindirli, port enjeksiyon sistemine sahip homojen dolgulu sıkıştırma ile ateşlemeli motor kullanılmıştır. Düşük basınçlı port enjektöründen referans n-heptan ve tetrahidrofuran-n-heptan karışım yakıtları püskürtülerek, emme ve sıkıştırma zamanı boyunca homojen bir karışım hazırlanmıştır. Silindir içi basınç, ısı dağılımı, yanma başlangıcı, CA50, yanma süresi, indike termik verim, maksimum basınç artış oranı analizi yapılmış ve hidrokarbon ve karbonmonoksit emisyonları belirlenmiştir. Aşırı fakir karışım şartlarında tüm test yakıtları ile silindir içi basınç ve ısı dağılımı azalmıştır. Referans n-heptan yakıtına tetrahidrofuran ilave edilmesi yanma süreçlerinin kontrol edilebilmesini sağlamıştır. En yüksek indike termik verim lambdanın 1.9 olduğu şartlarda TFH60 yakıtı ile %38.14 olarak kaydedilmiştir. N-heptan yakıtına tetrahidrofuran ilavesi yanmayı yavaşlatmıştır. Böylece düşük sıcaklık yanması daha uzun sürede tamamlanmıştır. Aşırı fakir çalışma şartlarında n-heptan-tetrahidrofuran yakıt karışımlarının hidrokarbon ve karbonmonoksit emisyonları referans yakıta göre artış göstermiştir. En yüksek kirletici emisyonlar THF60 yakıtı ile elde edilmiştir. Referans yakıta göre hidrokarbon ve karbonmonoksit ortalama %8.3 ve %54 oranında artmıştır.  

References

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  • [26] Hultqvist, A., Christensen, M., Johansson, B., Richter, M., Nygren, J., Hult, J., & Aldén, M. (2002). The HCCI combustion process in a single cycle—high-speed fuel tracer LIF and chemiluminescence imaging. SAE Transactions, 913-927.
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  • [33] Maurya, R. K., & Agarwal, A. K. (2011). Experimental study of combustion and emission characteristics of ethanol fuelled port injected homogeneous charge compression ignition (HCCI) combustion engine. Applied Energy, 88(4), 1169-1180.
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  • [37] Polat, S., Solmaz, H., Yılmaz, E., Calam, A., Uyumaz, A., & Yücesu, H. S. (2020). Mapping of an HCCI engine using negative valve overlap strategy. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 42(9), 1140-1154.
  • [38] Calam, A., & İçingür, Y. (2019). Giriş havasi sicakliğinin hcci motorun yanma ve performansina etkileri. Isı Bilimi ve Tekniği Dergisi, 39(1), 69-79.
  • [39] Gan, S., Ng, H. K., & Pang, K. M. (2011). Homogeneous charge compression ignition (HCCI) combustion: implementation and effects on pollutants in direct injection diesel engines. Applied Energy, 88(3), 559-567.
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There are 61 citations in total.

Details

Primary Language Turkish
Subjects Engineering
Journal Section Research Article
Authors

Alper Calam 0000-0003-4125-2127

Publication Date September 1, 2021
Submission Date September 16, 2020
Published in Issue Year 2021

Cite

APA Calam, A. (2021). Homojen Dolgulu Sıkıştırma ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi. Politeknik Dergisi, 24(3), 1033-1043. https://doi.org/10.2339/politeknik.796099
AMA Calam A. Homojen Dolgulu Sıkıştırma ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi. Politeknik Dergisi. September 2021;24(3):1033-1043. doi:10.2339/politeknik.796099
Chicago Calam, Alper. “Homojen Dolgulu Sıkıştırma Ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi”. Politeknik Dergisi 24, no. 3 (September 2021): 1033-43. https://doi.org/10.2339/politeknik.796099.
EndNote Calam A (September 1, 2021) Homojen Dolgulu Sıkıştırma ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi. Politeknik Dergisi 24 3 1033–1043.
IEEE A. Calam, “Homojen Dolgulu Sıkıştırma ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi”, Politeknik Dergisi, vol. 24, no. 3, pp. 1033–1043, 2021, doi: 10.2339/politeknik.796099.
ISNAD Calam, Alper. “Homojen Dolgulu Sıkıştırma Ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi”. Politeknik Dergisi 24/3 (September 2021), 1033-1043. https://doi.org/10.2339/politeknik.796099.
JAMA Calam A. Homojen Dolgulu Sıkıştırma ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi. Politeknik Dergisi. 2021;24:1033–1043.
MLA Calam, Alper. “Homojen Dolgulu Sıkıştırma Ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi”. Politeknik Dergisi, vol. 24, no. 3, 2021, pp. 1033-4, doi:10.2339/politeknik.796099.
Vancouver Calam A. Homojen Dolgulu Sıkıştırma ile Ateşlemeli Bir Motorda N-Heptan-Tetrahidrofuran Karışımlarının Yanma, Performans Ve Emisyonlara Etkisi. Politeknik Dergisi. 2021;24(3):1033-4.
 
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