Iris Publishers Journal Of Engineering Sciences

The device described activator of motor fuels by the patent RF No. 2411074, which is facilitated by the fractional composition of gasoline, aviation and diesels fuel, rapeseed oil, as well as modification of them hydrocarbon molecules-family in the fuel. The prospects of application of the activator. Activator tested three bench motor in Russia, environmental testing of exhaust emissions of engines in Rochester Institute (USA), control hematological indicators of eight grades of gasoline and three grades of diesel fuel, tens of chromatogram fuels before and after activation, control freezing point and smoke of diesel engines. Activator generates a unique water-fuel emulsion. Chromatograms of activated diesel and gasoline fuels showed a decrease in the proportion of heavy hydrocarbons and the formation of light molecules: hexane, heptane, 3 metal-pentane to 37 %, reducing the sulphur content from 0.032 to 0.015 %, resins from 7.4 to 0.8 mg/100 ml. In gasoline, the content of ...

To overcome the common problem, i.e., protocol complexity, of conventional underwater node estimation techniques, a statistical signal processing technique was proposed as an alternative. The technique uses cross-correlation as signal processing tool and hence it is called cross-correlation based underwater node estimation technique. This technique can overcome the protocol complexities, human interaction, over cost, etc., of conventional techniques. However, to introduce the readers with different technical aspects regarding this technique, the paper is introduced. We have used mean, and standard deviation as our estimation parameter to estimate nodes. At the same time, we have illustrated a brief discussion on effect of signal length, underwater bandwidth, etc., simultaneously in this paper. This writing can boost the researches in this field. For More Open Access Journals in Iris Publishers Please Click on: https://irispublishers.com/ For More Articles in Global Jour...

Due to the increase of consumption in the world of energy and the pollution caused by fossil fuel combustion processes, it is necessary to generate new technologies for the use of alternative fuels, allowing to reduce the dependence on fossil fuels such as oil, gas and coal. In general, the combustion processes of fossil fuels produce greenhouse gases which increase the temperature of the environment and the deterioration of the ozone layer. Chemical equilibrium was used to estimate the species produced by adiabatic gasification with different air-vapor mixtures. By running the NASA CEA software (chemical equilibrium with applications), a thermochemical simulation was performed under two parameters: the equivalence ratio (ER) defined as stoichiometric air/air supplied to the reactor (1.5-6) and the steam-fuel ratio (0-1). Thus, the syngas composition showed the following ranges: CO (0% -14.7%), H 2 (0% - 36.7%), CH 4 (0% -4.3%), Co 2 (17% -22.7%). The calorific value of t...

Most of Gulf countries tend to operate Desalination plants in order to produce valid and fresh water for human being usage. Unfortunately, those plants discard huge tones of salts into sea and the concentrations of those salts are very high which can disturb the ecosystem in sea. In the addition these are mainly attributed to concentrate chemical discharges, which may impair coastal water quality and affect marine life. Brine is a solution of salt (usually sodium chloride) in water. Instead of dumping the brine into sea water as way of disposal. It is good to utilize the salt brine as raw material for producing different chemicals through electrolysis process. The process of electrolysis involves using an electric current and require a lot of electricity that is mainly produced by the electrical energy comes from a d.c. (direct current) battery or power pack supply. In the experiment power pack supply was used (15V, 0.48A for 5 hours) in order to produce 1 liter of sodium hy...

Global Journal of Engineering Sciences This work analyses the effects of sea-level rise on flooding events for 3 different scenarios: present situation (S0), optimistic projection (RCP4.5) and pessimistic projection (RCP8.5). The study area is a gravel-dominated beach in southern Spain (Playa Granada), where the SWAN and XBeach-G models are applied to assess wave propagation patterns, total run-up and flooded dry beach area. The results indicate that sea-level rise modifies wave propagation patterns, with alongshore-averaged increases in breaking wave height equal to 1.2% (1.9%) un-der westerly (easterly) storms in the optimistic scenario and 2.6% (2.4%) in the pessimistic scenario. These increments lead to maximum increases in total run-up greater than 13% (14%) for westerly (easterly) storms in the optimistic scenario and 16% (20%) in the pessimistic scenario. Finally, the increases in flooded dry beach area induced by sea-level rise under westerly (easterly) storms ar...

Global Journal of Engineering Sciences To be a new type of building component, composite shear wall with steel tubes bundle has been widely used in the steel structure housing system as the development of prefabricated construction. In this paper, ABAQUS has been used to analyze mechanical performance of composite shear wall under low cycle reciprocating loading conditions. 6 group simulations with different axial compression ratio have been carried out, and both hysteretic curve and skeleton curve have been drawn. The simulation results showed that hysteretic curves become full before composite shear wall damage, and seismic performance is good. When the axial pressure ratio is 0.2, the bearing capacity of composite shear wall with steel tubes bundle achieves its maximum value. The bearing capacity of composite shear wall with steel tubes bundle also was calculated using classical shear wall formulation, the results are consisting with finite element simulation. Fo...

Global Journal of Engineering Sciences It is significant to note that user acceptance and confidence are crucial for further development of any new technology [1,2]. Businesses have facilitated or planning to facilitate their business platform to increase personnel efficiency, marketing improvement, cost reduction and increase profitability. Therefore, recognition the needs and acceptance of individuals is the beginning stage of any businesses and this understanding would be helpful to find the way of future development [3-5]. For More Open Access Journals in Iris Publishers Please Click on: https://irispublishers.com/ For More Articles in Global Journal of Engineering Sciences : https://irispublishers.com/gjes/