Performance, Combustion and Emission Evaluation of Vegetable De-oiled Neem Cake-Diesel Blends on Diesel Engine


  • Arivalagar A A



Neem de oiled cake powder, blended fuel, performance and emission characteristics and bio-fuels


Alternative sources for petroleum fuels have been the prime concern of most of the environmentalists. It is also a concern for economists due to the depletable nature of the fossil fuel. Vegetable oils are considered as good alternatives to diesel as their properties are close to diesel. At present biodiesel is commercially produced from the vegetable oils by esterification processes and its cost restrict the uses. In this paper neem de-oiled cakes after crushing the seeds is aimed in this study. The fuel is prepared by just adding dry de oiled cake powder at various proportions with diesel. Experiments were carried out in a single cylinder, water cooled, four stroke diesel engine for various blends of neem de oiled cake powder (NDOCP) and diesel fuel as 5%, 10% 15 % 20% and 25% by weight. The fuel has the potential to reduce smoke, CO emissions simultaneously with 2.5% increase in efficiency and a small increase in HC and NOx emission. The experimental results show that NDOCP blend operation results in higher brake thermal efficiency with reduced emissions compared to the neat diesel and slightly less when comparing with pure oil blends


Download data is not yet available.

Author Biography

Arivalagar A A

Research scholar, Dr.MGR Educational and Research Institute, Chennai, India.


1. Herchel T. C. Machacon, Seiichi Shiga, TakaoKarasawa, Hisao Nakamura, “Performance and emission characteristics of a diesel engine fuelled with coconutoil – diesel fuel blend”, Biomass and Bioenergy 20 (2001), pp 63 – 69.

2. M.A.Kalam, M.Husnawan, and H.H.Masjuki, “Exhaust emissions and combustion evaluation of coconut oil – powered indirect injection diesel engine”, Renewable Energy 28 (2003), pp 2405 – 2415.

3. A Shaeed and E Swain, “Combustion analysis of coconut oil and its methyl esters in diesel engine”, IMechE Proc, Instn Mech Engrs Vol 213, Part-A, A02798, 1999.

4. H.H. Masjuki, M.A. Kalam, M.Maleque, A.Kubo, and T.Nonaka, “Performance, emission and wear characteristics of an indirect injection diesel engine using coconut oil blended fuel”, IMechE Proc, Instn Mech Engrs Vol 215, Part D, D03000, 2001.

5. Eiji Kinoshita, Thet Myo, and Kazunori Hamasaki, Hiroshi Tajima, Zhang Ru Kun, “Diesel combustion characteristics of coconut oil and palm oil biodiesels”, SAE Paper no. 2006-01-3251

6. Ronald J. Donahue and David E. Foster, “Effects of oxygen enhancement on the emissions from a DI diesel via manipulation of fuels and combustion chamber gas composition”, SAE Technical Paper 2000-01-0512.

7. David L. Hilden, John C. Eckstrom and Leslie R. Wolf, “The emissions performance of oxygenated diesel fuels in a prototype DI diesel engine”, SAE Technical Paper 2001-01-0650.

8. Mitosuo Tamanouchi, Hiroki Morihisa and Shigehisa Yamada., “Effects of fuel properties on exhaust emissions for diesel engines with and without oxidation catalyst and high pressure injection”, SAE Paper no. 970758, 1997.

9.Ravikadiyala,B.V.Apparao,”some comparative performance studies on DI diesel engine with pungam methyl ester and diesel oil “ proceedings of the 19th national conference on IC engine and combustion 2005 pp 47 – 54