Due to the high price of virgin vegetable oils and the drawbacks of the homogeneous catalytic transesterification, in this work an economically profitable alternative process was proposed for biodiesel synthesis in which transesterification of the low-cost waste cooking oil (WCO) with methanol in a heterogeneous system was done. Alumina impregnated with sodium hydroxide was utilized as a solid ...

Abstract The increment in the usage of automobiles is resulting increased greenhouse gases (GHG) emissions continuously and there a substantial need to reduce them effectively. present research work investigates emission behavior waste cooking oil biodiesel doped with CuO nanoparticles during testing Compression Ignition (CI) engines. This investigation based on effective reduction analysis emi...

The potential for biodiesel to become the main fuel in future seems be getting brighter with enactment of government policies related implementation Euro 4 standard. In addition, has also launched de-carbonization reduce greenhouse effect by referring International Maritime Organization (IMO) plan which sets a target reducing world carbon emissions 40% 2030 and 70% 2050. To answer this challeng...

A comparative study is performed to design an optimal PID controller for automatic voltage regulator system using different optimization techniques. The presented approaches are referred as particle swarm (PSO) algorithm, cuckoo search (CSO) moth flame (MFO) water cycle (WCO) teaching–learning-based (TLBO) and hill climbing (HCO) algorithm. Transient response parameters, which rise time Tr, set...

Pilot-fueling and nozzle-injection pressure are significant injection parameters, they have impacts on modern vehicles for enhancing the engine output, in addition to meeting rigorous tailpipe-exhaust emission standards. In this current work, influence of pilot-fueling nozzle-opening (NOP) performance tailpipe outcomes from a compression-ignition (CI) at higher varying load conditions was inves...

According to surveys of wildlife control operators (WCO), problems with raccoons (Procyon lotor) consistently rank among the top complaints for property owners. Among the more serious behaviors of female raccoons is their propensity to invade human-occupied structures to raise young. Distressed property owners frequently respond using lethal means, either on their own or through hiring WCOs. Ev...

Lipase from Candida sp. 99–125 is widely employed to catalyzed transesterification and can be used for biodiesel production. In this study, the lipase was immobilized by combined adsorption and entrapment to catalyze biodiesel production from waste cooking oil (WCO) via transesterification, and investigating co-immobilizing agents as additives according to the enzyme activity. The addition of t...

ABSTRACTAn oxidation stability is very important for a long-term storage of biodiesel. Some physical (density and viscosity) chemical properties (acid value, iodine peroxide value) were analyzed to predict the biodiesel produced from Waste Cooking Oil (WCO). WCO one potential feedstocks in Indonesia, which large cooking oil consumer. Biodiesel was by transesterification process 60 oC temperatur...