Abstract
Density and compressibility are primordial parameters for the optimization of diesel engine operation. With this objective, these properties were reported for waste cooking oil biodiesel and its blends (5% and 10% by volume) mixed with diesel. The density measurements were performed over expanded ranges of pressure (0.1 to 140 MPa) and temperature (293.15 to 353.15 K) compatible with engine applications. The isothermal compressibility was estimated within the same experimental range by density differentiation. The Fatty Acid Methyl Esters (FAMEs) profile of the biodiesel was determined using a Gas Chromatography–Mass Spectrometry (GC-MS) technique. The storage stability of the biodiesel was assessed in terms of the reproducibility of the measured properties. The transferability of this biodiesel fuel was discussed on the basis of the standards specifications that support their use in fuel engines. Additionally, this original set of data represents meaningful information to develop new approaches or to evaluate the predictive capability of models previously developed.
Highlights
Biodiesel, known as a renewable and environmentally friendly fuel, has attracted the attention of the scientific community over the past decade
We report all the data knowing that uncertainties in the density values for the highest pressures (110 to 140 MPa) at
The density of a biodiesel produced from waste cooking oil and of two of its diesel blends was experimentally investigated over broad ranges of pressure and temperature
Summary
Known as a renewable and environmentally friendly fuel, has attracted the attention of the scientific community over the past decade. The massive development of tourism services along with food processing chains, especially fast-food chains, and the rise of instant noodle factories in developing countries has led to the discharge of large amounts of WCO This is becoming a serious environmental problem. Density is an important parameter that influences the conversion of volume flow rate into mass biodiesel flow rate [12], whereas the compressibility linked to a bulk modulus controls the fuel injection timing [13] Their knowledge is of importance within the same operating pressure and temperature ranges. Density measurements were performed for the pure biodiesel and its two blends within broad ranges of pressure (0.1 to 140 MPa) and temperature (293.15 to 353.15 K) which meet the operating conditions in engine use. The potential use of this fluid as biodiesel is discussed on the basis of this experimental study
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