Experimental Study on NO_x Reduction in CI Engine Fuelled with Biodiesel (Cotton Seed Methyl Ester Blends) Using Selective Catalytic Reduction (SCR) System with Anova Analysis

Abstract:

An experimental investigation was conducted to analyse the performance and exhaust emissions of Kirloskar AV-I Compression ignited air cooled engine fuelled with diesel and cotton seed oil blends (80% of diesel and 20% of cotton seed biodiesel).Experiments were conducted at various concentration of urea solutions ranging from 30 to 35% at a constant flow rate of 0.75 litres per hour. The results indicated that urea injection with titanium dioxide as selective catalyst in the exhaust pipe caused a 47.9% of NOx reduction for diesel at full load condition and at a constant flow rate of 0.75lit/hr with an urea concentration of 35%.Also the results showed that urea injection with titanium dioxide as selective catalyst in the exhaust pipe caused a 68.5% NOx reduction for biodiesel which was achieved with a constant flow rate of 0.75lit/h with an urea concentration of 32.5%.Thus Biodiesel (C20) fuelled CI Engine with SCR is a very effective and suitable replacement for petroleum based diesel fuelled CI Engine with SCR. ANOVA analysis was done and resulted that the null hypothesis is rejected. A high p-value (0.104) had suggested that beta plays a less significant role in the model and a low p-value (0.012) suggests that beta plays a significant role in the model. Overall ANOVA analysis disclosed that percentage of urea solution has a major impact on NO_X emissions than HC and CO emissions.

• Periodical: Applied Mechanics and Materials (Volume 787)
• Pages: 712-716
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.787.712
• Online since: August 2015
• Authors: M. Kowshik Dhev, R. Sheshathri, Alagumalai Avinash, S. Natarajan*
• Keywords: Anova Analysis, Diesel: Biodiesel: Selective Catalytic Reduction (SCR) System, Oxides of Nitrogen (NOx)

References

[1] S. Sundarraj, P.M. Madhankumar, S. Natarajan , Experimental Investigation of Urea-SCR in C.I. Engine Fuelled with Diesel and Jatropha Blends, submitted to International Journal of Innovative Research in Science, Engineering and Technology Vol. 3, Issue 4, April (2014).

[2] K. Chithambaramasari N.V. Mahalakshmi,K. Jayachandran, Application of SCR technique in NOx reduction of Diesel Engine Emission by Urea Injection Method , Canadian Journal on Mechanical sciences & Engineering, December 2011, Vol. 2 No. 8.

[3] Lei Jiang, Unregulated emissions from a diesel engine equipped with vanadium- based urea-SCR catalyst, Journal of Environmental Sciences 2010, 22(4)575-581.

DOI: 10.1016/s1001-0742(09)60148-0

[4] Hongyi Dong, ShijinShuai, Rulong Li, Jianxin Wang, Xiaoyan Shi and Hong He, Study of NOx selective catalytic reduction by ethanol over Ag/Al2O3 catalyst on a HD diesel Engine, Elsevier Chemical Engineering Journal, (2008).

DOI: 10.1016/j.cej.2007.02.027

[5] Toshitaka Tanabe, Miho Hatanaka, Ryusuke Tsuji and Hirofumi Shinjoh, NOx Selective Catalytic Reduction over Pt supported catalyst promoted by Zeolite and CeO2-ZrO2 , R&D Review of Toyota CRDL Vol. 37 No. 3.

DOI: 10.1016/s0167-2991(03)80259-8

[6] K. Dilip Kumar and P. Ravindra Kumar , Experimental Investigation of Cotton Seed Oil and Neem Methyl Esters Biodiesel on CI Engine, International Journal of Modern Engineering Research (IJMER), July-Aug 2012 Vol. 2, Issue. 4.

[7] Patni neha, Bhomiachintan, DasguptaPallavi and Tripathi Neha, Use of Sunflower and cottonseed oil to prepare Biodiesel by catalyst assisted Transesterification, Research Journal of Chemical Sciences, March (2013), Vol. 3(3), 42-47.

[8] Xiaohu Fan, xi wan, feng chen, Daniel p. geller and peter j. wan, Engine Performance Test of Cottonseed oil biodiesel, The open Energy and Fuels Journal, 2008, 40-45.

DOI: 10.2174/1874248300801010040

[9] Md. Abdul wakil, Ahmed, Md. Hasibur Rahman and Md. Arifuzzaman, Study on Fuel Properties of Various Vegetable oils, International Journal of Mechanical Engineering, May 2012, Volume 2 Issue 5.

[10] G. Cortes, J.M.I. Ramirez, J.P. Gomez, F. Kapteijn, J.A. Moulijn and S.M.C. Lecea, Effect of the support in de-NOx HC-SCR over transition metal catalysts, React. Kinet. Catal. Lett. 2000 Vol. 70, No. 2, pp.199-206.

[11] R. Praveen, S. Natarajan , Experimental Study of Selective Catalytic Reduction System On CI Engine Fuelled with Diesel-Ethanol Blend for NOx Reduction with Injection of Urea Solutions , International Journal of Engineering and Technology , ISSN: 0975-4024, Vol. 6, Issue No. 2, pp. no: 895-904.