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This paper presents the results of a research project for developing Rusty Roads, a videogame that simulates line follower robots in tridimensional, competitive environments. During the software development process, it was necessary to define the key physical factors that could affect the performance of the robot. A real robot was considered to define real parameters for the simulation, and to define discrete equations for simulating the robot in the Unity framework, comparing their accuracy with that of continuous, exact equations specifically developed for this study. This paper presents the process for obtaining and testing those equations, which were the foundations for the successful development of the simulation layer of the videogame and allowed the subsequent creation of its 3D visualization component. [ABSTRACT FROM AUTHOR]

This paper analyzes the vehicular mobility in 3 specific points of the municipalities of Riohacha and Maicao, La Guajira Colombia. Variables of vehicular flow such as queue arrival times, density, permanence, infractions and other implicit ones were used. Observation and description processes are carried out over four continuous months in critical hours; the flow variables that affected the selected points, causes and effects were identified and described, which are represented using influence diagrams. The whole process was simulated, using high performance software such as PTV Vissim 8 and Vensim PLE. It is recognized that the vehicular mobility in the studied points, the congested genres due to the high frequency of vehicles that transit and that the current traffic regulations are something that don't help enough to improve the flow. In addition to infractions, accidents and situations of intolerance, toxicity is generated in the environment by the emission of CO2 by vehicles waiting at each critical point, matters to which authorities still do not pay attention. [ABSTRACT FROM AUTHOR]

This paper presents and analyzes a flipped classroom proposal for teaching production programming technics, with the aim of increasing the interest, collaboration and satisfaction of the students in comparison with traditional teaching. A real size production plant problem is presented to the students in order to make decisions on tactical level and operative level. To make the decisions, the concepts linked to the different tools are supplied to the students, with the support of software applications. These incorporate smart technics applied to each step of the planning process. The effectiveness of the tools in the key indicators of production area are validated calculating indicator values that could be used as student grades criteria. The qualitative evaluation of preliminary tests shows that the use of this kind of educational model improves motivation, professor-student interaction and academic performance. [ABSTRACT FROM AUTHOR]

In this paper the basic structure and design of a torque controller for an electric vehicle driven by induction motor is presented. The basic structure of the electric vehicle in question and its mathematical model is presented first. After that, the operation principle of the conventional direct torque control is analyzed and from this a new controller with fixed constant switching frequency is designed. To generate the switching pulses sine PWM is used instead of the hysteresis comparator and switching table commonly used in direct torque control. Finally, simulation comparison was performed. This shows that better performance was achieved with the proposed controller with lower torque and flux errors, and lower torque and stator current ripple. [ABSTRACT FROM AUTHOR]

This paper presents the simulation and thermodynamic analysis of an absorption cooling advanced system of the type air-cooled GAX. The study of the system is focused on the thermal conditioning of residential spaces located in regions with extreme hot weather. The mathematical model of the system is solved using a computational algorithm called backtracking. A simulator was developed to evaluate the operational behavior of the system, under different environmental conditions. It was found that the ambient temperature has an important influence on the operating behavior of the system, since efficiency decreased by 20.4% when the temperature changed from 40 to 50° C. It is concluded that the GAX cooling system operated in hot extreme weather is a good alternative option for the thermal conditioning of spaces since it maintains a high performance coefficient compared to conventional systems. [ABSTRACT FROM AUTHOR]

This paper presents the construction of a model based on system dynamics for describing the behavior of pig market. This with the objective of anticipating possible events, creating scenarios about assumptions and determine whether it is feasible or not to invest in this market in a short to medium term. The proposed model consists of seven cycles considering the different variables involved in the pig market, establishing relationships and the cycles formed between them. The model variables were set using historical data of the market. The results show a high dependence of raw material costs over the earnings and show the stage of breeding as the most profitable scenario. [ABSTRACT FROM AUTHOR]

The effect of certain simplifications in calculations of alcoholic distillation columns, such as to consider ethanol and water as the only components and to neglect heat losses is analyzed. The effect of reducing the number of components in the wine, from nine to the binary ethanol+water, over the enthalpy of the streams is discussed. The analysis was done from a nine components solution to the binary system ethanol-water. Three models for estimating the required properties were used showing that results are not significantly affected. The effects of heat losses by convection and radiation were estimated on both rectifying and purifying columns for insulated and non insulated cases were evaluated. The paper shows that the simplifications introduced to the HYSYS simulator are correct. [ABSTRACT FROM AUTHOR]

This paper presents a method to solve the ambipolar diffusion equation for modeling and simulating the PiN diode in silicon carbide, using an empirical approximation. Through this methodology a set of differential equations that simulate the main physical phenomena associated to the power semiconductor device are obtained. The equations, implemented in Pspice, model in a more actual form the charges behaviour in the N- region of a PiN diode in silicon carbide for the static and dynamic phases. For the verification and validation of the model, the simulation results were compared with experimental data reported in the literature, obtaining accurate results for application in power electronic. [ABSTRACT FROM AUTHOR]

This work presents a thermodynamic analysis of a cogeneration energy process with black liquor gasification obtained in pulp and paper industries, using exergy balances to identify and quantify the main irreversibilities in the process. The cogeneration process was analyzed using a commercial simulator from which it was possible to develop the exergy balance. The influence of the composition of the gases produced in the gasifier over the exergy losses in the process was evaluated. The most appropriated operating conditions in the gasifier to reduce the concentration of these components, which are responsible for the exergy losses are the low temperature (700 °C) and the low pressure (200 kPa). The analysis showed to be useful to determine the technical viability of this alternative process of energy generation using black liquor gasification. [ABSTRACT FROM AUTHOR]