Abstract
The objective of this work is to reduce viscosity and other related problems associated with biodiesel by adding non polluting additives. Magnetite is chosen as an additive in this work. Significant reason for using magnetite as an additive is that the magnetic nano particles (magnetite) can be collected from exhaust using magnetic billets in the tail pipe. Performance and emission test is carried out in single cylinder compression ignition engine using base and modified fuel and is compared to diesel. Modified fuel consists of 98.5% base fuel (Rice bran oil methyl ester), 1.3% additives (magnetite) and 0.2% surfactant (tri methyl ammonium hydroxide) by volume. The experimental work confirmed that by adding magnetite to methyl esters of rice bran oil enhances the brake thermal efficiency by 4.27% with 5.17% reduction in SFC. In addition, 10.8%, 9.1% and 8.49% reduction in HC, CO and nox emissions is observed respectively.
Highlights
Hiie NolvakY1u, vJaaraakjanTrDuua,2V, eBnakiabta RLaimanea3n, MMbarika Truu4, a DGeupanrttims eCntepofuMrneicehkasn5ic,aVl aEndgimineserBinagr,tJkeepvpiiacas6r,InJsataitnuties oJfuTheachnnsoolnog7y, OChlgeannMai,uItnedri8a 1, 7Inb DsteitpuatretmofenMt oofleMcuelcahranaincdalCEenlgliBneieorlionggy,CFoallceugletyofoEfnSgcinieenecrienga,nAdnTneachUnnoivloegrsyi,tyU, Cnihveenrnsiatyi, IonfdTiaartu, 23 Riia str., 51010 Tartu, Estonia 1, 2, 4Institute of Ecology andSuEbamrtihtteSdci2e6ncAeus,g.F2a0c1u5lt;yacocfepStceiden1c2e Jaannd. 2T0e1c6hnology, University of Tartu, Aadbdsitnrgacnt3o., 8nTIhpneostloliutbutjietncegtiovadef dMoiftiivtchersiso
This is caused by increase in resistance among fuel layer. 2 °C increase in flash point is observed by adding magnetite to methyl esters of rice bran oil
The following conclusions were drawn by adding magnetite to methyl esters of rice bran oil in a constant speed diesel engine
Summary
Rice bran oil is best suitable for high-temperature cooking methods such as stir frying and deep frying. It is accepted as cooking oil in several Asian countries. The properties of transesterifed methyl esters of rice bran oil fall well within the acceptable limit of ASTM standards. The oil obtained is classified as defatted and crude rice bran oil. Defatted rice bran oil with 16–20% of protein content is used for edible purpose. Crude rice bran oil with 23–24% free fatty acid is used as the main source of biodiesel production process. Crude rice bran oil is converted into its methyl esters of rice bran oil by conventional transesterification process. The present work utilized refined Rice bran oil. The alcohol used in this work was methanol and KOH was used as catalyst for transesterifications
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