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The crankshaft run-up process is a critical transient phase in internal combustion engine operation, during which the engine transitions from rest or low rotational speed to a stable operating condition. This process is governed by the interaction between combustion-generated torque, mechanical resistance, and the inertia of the rotating system. Accurate modelling of this phase is important for improving engine design, reducing experimental effort, and better understanding transient engine dynamics. This paper pre...

This paper presents a theoretical analysis of the application of artificial neural networks for modeling the run-up time of combustion engines. Engine run-up time is defined as the period required for the crankshaft rotational speed to increase from an initial state to a specified operating level. The process is influenced by numerous nonlinear physical and chemical phenomena, including fuel properties, combustion dynamics, mechanical inertia, and operating conditions. Due to the complexity of these interactions, ...

Utilizing algorithms for imaging medical results from CT, MRI, and PET into Virtual Reality. There is a growing interest in the field of medical imaging in understanding the impact of algorithm parameters on the quality and interpretability of the obtained images. In the developed software VRMed3D aimed at educating students using medical images in virtual reality technology, Gaussian noise was utilized to identify the most effective edge detection algorithms. The search was for an algorithm that provided the most...

The instability of the global fuel economy and increasing environmental problems are forcing the global scientific community to look for substitutes for fossil fuels, primarily oil. A promising direction for research seems to be fuel blends with natural additives or based entirely on renewable resources, the so-called biofuels. One of the more significant developments in biofuel research, is biofuels that use alcohols as part of the biofuel blend. The specific nature of these agents, however, makes it required and...

Databases and ICT capabilities allow for the analysis of trends and possibilities of change. The use of ICT enables a broader problem analysis and an indication of how and where to process it For a given biodiversity, specific situation and existence, refer to the global situation and the global step on energy fuel becomes bigger with each step. Therefore, a more and more needed, soon to be added supplement, accompanying, supplementing the source. The closest available alternatives to humans are so-called biofuels...

In the literature, the quantities describing the physicochemical parameters describing the combustion processes are: calorific value, cetane number LC, auto-ignition temperature, solidification point, viscosity and surface tension, and heat of vaporization. This article shows that another parameter influencing the combustion process in a thermodynamic engine, which is an engine, is also influenced by chemical bonds between atoms. Selected 11 alcohols differing in the number of chemical bonds between carbon atoms (...

Nowadays, in the literature we come across the notion that selected physico-chemical parameters have an influence on diesel engine operation and are included in the European standard PN- 590. Fuels meeting the standard for diesel engine are complex substances, which do not consist of simple hydrocarbons, but very complex, extended aromatic hydrocarbons. This paper presents proposals for the use of simple chemical compounds such as alcohols as diesel engine fuels. It has been demonstrated that selected alcohols can...

The reduction of fuel consumption in the engine was experimentally investigated in cogeneration system with the participation of 1:4000 vol. CeO2 concentrate (Bluediesel): diesel fuel. CeO2 concentrate purifies combustion chamber and after burns hydrocarbons which in turn affects lowering the fuel consumption. This work was carried out with the engine load at the level of 0-4000W and it shows that in the presence of the Bluediesel concentrate, fuel consumption is 5-7 wt. % lower than in case of diesel oil consumpt...

Current sources of energy used to power motor vehicles are fuels produced on the basis of crude oil (gasoline, diesel oil). In the near future, these fuels must be replaced with other substances with similar properties that enable them to power the engines of motor vehicles. The amount of conventional fuels is limited and with the ever-growing demand for this raw material, implying, among others, price increase, it is necessary to look for alternative fuels - for traditional mixtures. According to the assumptions ...

In Brazil, about 12 million tons of rice is produced annually, among the types of rice produced is parboiled rice, which according to data from the Brazilian Association of the Parboiled Rice Industry represents 23% of Brazil's rice consumption. In the production of parboiled rice, a hydrothermal process is carried out in which the rice is subjected to a period of waterlogging, followed by autoclaving and subsequent drying, with the diffusion of nutrients from the bark to the interior of the grains, also occurring...