Microalgae are photosynthetic microorganisms that can produce lipids, proteins and carbohydrates in large amounts and within short periods of time and these can be processed into both biofuels and other useful commercial products. Due to this reason microalgae are considered as a potential source of renewable energy; and one of the most important decisions in obtaining oil from microalgae is th...

Dimethyl ether (DME) is considered a promising alternative to diesel fuel in compression-ignition engines because of low particulate and NOx emissions along with high thermal efficiencies as well as improved auto-ignition characteristics due to its high cetane number. Recently, DME also has been selected as a prospective fuel candidate for the validation of turbulent combustion models organized...

The PACE trial concluded that Cognitive Behavioral Therapy (CBT) and Graded Exercise Therapy (GET) are moderately effective in managing Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) and yielded a 22% recovery rate. Nonetheless, the recently released individual participant data shows that 13.3% of patients had already recovered, on one or both primary outcomes, upon entering the tr...

various combustion characteristics and properties are studied while selecting a fuel for any engine. the choice of the engine and fuel are highly interrelated. vegetable oil is one obvious fuel particularly because their fuel properties are closer to diesel fuel. two important properties, the cetane number and the calorific value are similar to diesel. hence diesel engines can be operated on ve...

A novel rapid, simple and solvent-free method was developed for determination of the volatile compounds from the flowers of Chimonanthus praecox Link using headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS). The SPME conditions were firstly optimized and applied to sampling of the volatile compounds emitted from living Chimonanthus praecox L. flower...

This article contains the results of mathematical modeling self-ignition delay (τc sum) a single droplet for various fuels, and measurement verification (τc) this in diesel engines. The result τc sum (as function diameter ambient temperature fuel droplet) revealed two physical chemical stages that had different values weighting factor (WFi) relation to total self-ignition. It was also found WFi...

Abstract Determination of oxidation stability becomes a critical fundamental analysis to ensure biodiesel quality. The biodiesel’s degradation by may compromise fuel properties and engine durability due forming products fatty acid decomposition. In this present study, the palm-oil its blends with diesel (cetane number 48) was determined using EN 15751 (Rancimat Method) ASTM D 7545 (Rapid Small ...