IJE TRANSACTIONS C: Aspects Vol. 27, No. 3 (March 2014) 403-410   

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P. P. Patnaik and S. K. Acharya
( Received: August 23, 2013 – Accepted: September 14, 2013 )

Abstract    The standard design parameters of a compression ignition engine fail to give specified performance with strait vegetable oil (SVO) from different origins. This study is performed to find the effect of compression ratio on emission characteristics such as carbon monoxide (CO), carbon dioxide (CO2), hydrocarbon (HC), nitrogen oxides (NOx) and smoke opacity with all the tested fuels in a single cylinder, four stroke VCR engine fueled with neat Karanja oil blends (10% and 20%) with diesel (on volume basis) and Karanja oil methyl ester (KOME) blends (20%, 40% and 60%) and the results are compared with diesel. Experiment has been conducted at compression ratios of 16:1, 17:1, 18:1. At higher CR minimum value CO is recorded 0.04% for 20% blend of KOME (B20), while it show maximum CO2 recorded 4.45%. Lowest HC and NOx emission recorded 22 ppm and 552 ppm respectively for 40% blend of KOME (B40). Emissions are marginally higher for K10 and K20 than diesel. Overall observation shows that B40 shows lowest emissions than other blends of KOME at higher compression ratio.


Keywords    Karanja oil, Karanja oil methyl ester, Variable compression ratio engine, Emission


چکیده    پارامترهای طراحی استاندارد یک موتور احتراق تراکمی با سوخت روغن​های گیاهی خالص از گیاه​های مختلف قادر به تامین کارایی مشخص شده نیستند. در این مطالعه اثر ضریب تراکم بر ویژگی​های انتشار گازهایی مانند مونوکسید کربن (CO)، دی اکسید کربن (CO2)، هیدروکربن (HC)، اکسیدهای نیتروژن (NOx) و کدورت دود با در یک موتور دیزل تک سیلندر چهار زمانه با سوخت روغن Karanja تمیز مخلوط شده با سوخت دیزل به نسبت​های حجمی 10 و 20 درصد و Karanja و همچنین متیل استر به نسبت​های حجمی 20 ، 40 و 60 درصد (KOME) بررسی و با سوخت دیزل مقایسه شده است. آزمون​ها در ضریب​های تراکم 16:01، 17:01 و 18:01 انجام شده است. در ضریب تراکم​های بالاتر، حداقل مقدار CO برای KOME 20درصدی (B20) به 0.04 به دست آمده است، در حالی که حداکثر CO2 45/4٪ بوده است. پایین ترین مقدار هیدروکربن و NOx منتشر شده برای KOME 40 درصدی ( (B40به ترتیب 22 و 552 پی پی ام است. تولید این گازها توسط سوخت​های K10 و K20 فقط اندکی بیشتر از دیزل است. نتایج این پژوهش به طور کلی نشان می​دهد که تولید گازها از سوخت با ترکیب B40 در نسبت​های تراکم بالاتر، کمترین مقدار در میان سوخت​های KOME است.



1.     Misra, R. and Murthy, M., "Performance, emission and combustion evaluation of soapnut oil–diesel blends in a compression ignition engine", Fuel,  Vol. 90, No. 7, (2011), 2514-2518.

2.     Graboski, M. S. and McCormick, R. L., "Combustion of fat and vegetable oil derived fuels in diesel engines", Progress in Energy and Combustion Science,  Vol. 24, No. 2, (1998), 125-164.

3.     Rakopoulos, C., Antonopoulos, K., Rakopoulos, D., Hountalas, D. and Giakoumis, E., "Comparative performance and emissions study of a direct injection diesel engine using blends of diesel fuel with vegetable oils or bio-diesels of various origins", Energy Conversion and Management,  Vol. 47, No. 18, (2006), 3272-3287.

4.     Agarwal, D. and Agarwal, A. K., "Performance and emissions characteristics of jatropha oil (preheated and blends) in a direct injection compression ignition engine", Applied Thermal Engineering,  Vol. 27, No. 13, (2007), 2314-2323.

5.     Saravanan, S., Nagarajan, G., Lakshmi Narayana Rao, G. and Sampath, S., "Combustion characteristics of a stationary diesel engine fuelled with a blend of crude rice bran oil methyl ester and diesel", Energy,  Vol. 35, No. 1, (2010), 94-100.

6.     Karthikeyan, R. and Mahalakshmi, N., "Performance and emission characteristics of a turpentine–diesel dual fuel engine", Energy,  Vol. 32, No. 7, (2007), 1202-1209.

7.     Mani, M. and Nagarajan, G., "Influence of injection timing on performance, emission and combustion characteristics of a di diesel engine running on waste plastic oil", Energy,  Vol. 34, No. 10, (2009), 1617-1623.

8.     Ramadhas, A., Jayaraj, S. and Muraleedharan, C., "Characterization and effect of using rubber seed oil as fuel in the compression ignition engines", Renewable Energy,  Vol. 30, No. 5, (2005), 795-803.

9.     Agarwal, D., Kumar, L. and Agarwal, A. K., "Performance evaluation of a vegetable oil fuelled compression ignition engine", Renewable Energy,  Vol. 33, No. 6, (2008), 1147-1156.

10.   Ruan, D., Cheng, W. and Lee, C., "Comparison of performance and combustion characteristics of diesel fuel and vegetable oils in di diesel engine", SAE International Journal of Fuels and Lubricants,  Vol. 1, No. 1, (2009), 1049-1055.

11.   Geo, V. E., Nagarajan, G. and Nagalingam, B., "Experimental investigations to improve the performance of rubber seed oil by exhaust gas preheating", Training,  Vol. 2011, No., (2013), 03-15.

12.   Ramadhas, A., Jayaraj, S. and Muraleedharan, C., "Dual fuel mode operation in diesel engines using renewable fuels: Rubber seed oil and coir-pith producer gas", Renewable Energy,  Vol. 33, No. 9, (2008), 2077-2083.

13.   Szybist, J. P., Song, J., Alam, M. and Boehman, A. L., "Biodiesel combustion, emissions and emission control", Fuel Processing Technology,  Vol. 88, No. 7, (2007), 679-691.

14.   Lin, C.-Y. and Lin, H.-A., "Diesel engine performance and emission characteristics of biodiesel produced by the peroxidation process", Fuel,  Vol. 85, No. 3, (2006), 298-305.

15.   Ozsezen, A. N., Canakci, M. and Sayin, C., "Effects of biodiesel from used frying palm oil on the exhaust emissions of an indirect injection (idi) diesel engine", Energy & Fuels,  Vol. 22, No. 4, (2008), 2796-2804.

16.   Acharya, S. K., Swain, R. K. and Mohanty, M. K., "Engine emission using preheated karanja and kusum oil", Energy Sources Part A: Recovery, Utilization, and Environmental Effects (2011).

17.   Altun, Ş., Bulut, H. and Öner, C., "The comparison of engine performance and exhaust emission characteristics of sesame oil–diesel fuel mixture with diesel fuel in a direct injection diesel engine", Renewable Energy,  Vol. 33, No. 8, (2008), 1791-1795.

18.   Ramadhas, A., Muraleedharan, C. and Jayaraj, S., "Performance and emission evaluation of a diesel engine fueled with methyl esters of rubber seed oil", Renewable Energy,  Vol. 30, No. 12, (2005), 1789-1800.

19.   Canakci, M., Monyem, A. and Gerpen, J. V., "Accelerated oxidation processes in biodiesel", Transactions of the ASAE,  Vol. 42, No. 6, (1999), 1565-1572.

20.   Canakci, M., "Combustion characteristics of a turbocharged di compression ignition engine fueled with petroleum diesel fuels and biodiesel", Bioresource Technology,  Vol. 98, No. 6, (2007), 1167-1175.

21.   Canakci, M., Ozsezen, A. N. and Turkcan, A., "Combustion analysis of preheated crude sunflower oil in an idi diesel engine", Biomass and Bioenergy,  Vol. 33, No. 5, (2009), 760-767.

22.   Agarwal, D., Sinha, S. and Agarwal, A. K., "Experimental investigation of control of NOxemissions in biodiesel-fueled compression ignition engine", Renewable Energy,  Vol. 31, No. 14, (2006), 2356-2369.

23.   Canakci, M., Erdil, A. and Arcaklioğlu, E., "Performance and exhaust emissions of a biodiesel engine", Applied Energy,  Vol. 83, No. 6, (2006), 594-605.

24.   Meher, L., Naik, S. and Das, L., "Methanolysis of pongamia pinnata (karanja) oil for production of biodiesel", Journal of Scientific and Industrial Research,  Vol. 63, No., (2004), 913-918.

25.   Bringi, N. V., "Non-traditional oilseeds and oils in india", Oxford & IBH Publishing Company,  (1987).

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