Biolubricants generated from biomass and other wastes can reduce the carbon footprint of manufacturing processes power generation. In this paper, properties uses biolubricants have been compared thoroughly with conventional mineral-based lubricants. The biolubricants, which are currently based on vegetable oils, discussed in terms their physicochemical thermophysical properties, stability, biod...

It is necessary to meet increasingly stringent emission standards of IC engines, reducing the values. While improving engine parameters and combustion chamber geometries can reduce emissions, also research continues for alternative fuels. Diesel production from waste cooking oils has advantages in terms recycling, environment, cost. Waste be used as fuel with minor modifications. oil-based biod...

The experimental study was conducted to investigate the effects of different opening ranges of waste gate of a turbocharged medium displacement spark ignition engine on improving work parameters such as exhaust emission, torque characteristics and fuel consumption. The object of the experimental tests was an engine with modified intake and exhaust manifolds. The intake and exhaust manifold modi...

This paper is a review of literature concerning using vegetable oils as a replacement for diesel fuel. The term vegetable oils as used in this paper refers to vegetable oils which have not been modified by transesterification or similar processes to form what is called biodiesel. The oils studied include virgin and used oils of various types including soy, rapeseed, canola, sunflower, cottonsee...

In the present study, experimental analyses were conducted by using biodiesel derived from second-generation feedstock. terms of cost and accessibility, feedstock has gained more attention due to its environmental approach. Waste-cooking-oil-derived methyl ester was produced through a transesterification reaction in presence synthesized magnesium zirconate (Mg2Zr5O12) heterogeneous catalyst. Th...

The rising demand for non-renewable resources such as asphalt binder is a significant issue in the pavement industry. Flexible consumes amount of binder, which has become major terms environmental sustainability and from an economics viewpoint. Hence, researchers strive to find other alternatives solve these problems, enhance performance lifespan flexible pavement. Biomass-based bio-oil, waste ...

In general, coolant is a cooling medium used to cool workpieces and cutting tools during the machining process. PT Komatsu Undercariage Indonesia, LNC OKUMA 0002 chip crankcase contained lot of stagnant coolants. The factor that causes stagnate growl wasted through conveyor carried along with chip. Changing fluid needs be done in certain phase because use for too long sand accumulate. Excessive...

Biodiesel obtained through the transesterification in methanol of vegetable oils, such as soybean oil (SO) and waste cooking (WCO), cannot be used a biofuel for automotive applications due to presence polyunsaturated fatty esters, which have detrimental effect on oxidation stability (OS). A method upgrading this material is catalytic partial hydrogenation acid methyl ester (FAME) mixture. The t...

Investigations were carried out to evaluate the performance of direct injection diesel engine with medium grade low heat rejection (LHR) combustion chamber and 3 mm air gap insulated piston, 3 mm air gap insulated liner, and ceramic coated cylinder head [ceramic coating with the thickness of 500 µ was made on the inside portion of the cylinder head].The engine had different operating conditions...