Josue Camargo Vanegas

Bio: Josue Camargo Vanegas is an academic researcher. The author has contributed to research in topics: Organic Rankine cycle & Waste heat recovery unit. The author has an hindex of 1, co-authored 3 publications receiving 2 citations.

Scientometric analysis of research on eSports from 2007 to 2017

Abstract: A scientometric analysis about eSports publications from 2007 to 2017 was carried out. HistCite was used to analyze the data collected from Web of Science during the period mentioned. The results suggest that eSports research has increased during the 11 years of study; the country with the highest number of publications was the United States of America, with eight institutions predominant in the number of publications. Most of the articles and the highest local score of total citations come from countries where eSports are considered sport; the top three journals with the most publications were International Journal of Gaming and Computer-Mediated Simulations, Games and Culture and Psychology of Sport and Exercise, where the top three journals with the highest TLCS are Games and Culture, New Media & Society and Computers in Human Behavior.

Experimental Study of the Heat transfer coefficient in a Plate Heat exchanger

Abstract: The way to evaluate a device in charge of heat transfer under certain working conditions is through the study of the global coefficient of heat transfer, it was carried out using a test bench that includes the base unit where the heating and movement of water is carried out and a unit where the heat exchange is carried out connected by means of flexible tubes and using the fundamental equations that are required, the results obtained were respectively the global transfer coefficient for both fluids of work with their respective Nusselt number, finally it is observed that the relationships between other models for plate exchangers, the comparative error is very large (40%) and to have more concise results. the scale factor must be taken into account.

A world overview of organic Rankine cycle as waste heat recovery alternative

Abstract: In this work the advantage of the use and implementation of ORC heat recovery systems for low temperature (<230°C) exhaust gases from a natural gas engine was studied. Different organic fluids and working conditions were analyzed in order to determine the best decision in terms of energy efficiency and exergetica refers to criteria such as cost, environmental impact, flammability toxicity among others. It was found that the performance for the different configurations is closely linked to the evaporation pressure, reaching an electrical power of 120kWe (10%) for the simple configuration. The working fluid with the highest performance was acetone regardless of the configuration analyzed. Simultaneously, an international and national context was created in different fields for heat recovery systems.

Advanced Exergo-Environmental Assessments of an Organic Rankine Cycle as Waste Heat Recovery System from a Natural Gas Engine

Abstract: This paper aims to present the real improvement opportunities of a simple organic Rankine cycle (ORC) as waste heat recovery system (WHRS) from the exhaust gases of a natural gas engine using toluene as the working fluid, based on the exergy and environmental point of view. From the energy and exergy balances, the advanced exergetic analysis was developed to determine the irreversibilities and opportunities for improvement. Since the traditional exergo-environmental analysis, it was found that the component with the greatest potential environmental impact associated with exergy (bF = 0.067 mPts/MJ) and per unit of exergy (ḂD = 8.729 mPts/h) was the condenser, while the exergy-environmental fraction was presented in the turbine (52.51%) and pump-2 (21.12%). The advanced exergo-environmental analysis showed that the environmental impact is more associated with the operational behavior of the components, with 75.33% of the environmental impacts being of endogenous nature, showing that the environmental impacts are generated to a reduced magnitude through the interactions between components. However, it was identified that much of the environmental impacts in ITC 1 could be reduced, with 81.3% of these impacts being avoidable. Finally, the sensitivity analysis results revealed that steel is the material of the components with the least environmental impact.

The Social Context of the Benefits Achieved in eSport

Abstract: The article presents a meta-analysis of the social context of benefits achieved by people in a new, yet not well-researched activity in electronic sports. The presented historical background of eSport and the dilemmas of the highly polarised scientific community, in which there are as many supporters as opponents of the recognition of eSport as a sport, have become a basis for describing this phenomenon in the context of the theory of use and gratification. Thus, based on the few eSport studies carried out, the human benefits related to cognitive and social development, identity development and participation in entertainment were determined.

On Numerical Investigation of Non-dimensional Constant Representing the Occurrence of Secondary Peaks in the Nusselt Distribution Curves

Abstract: The Study of heat transfer augmentation in micro scale and electronic packaging systems are some of the paramount areas of the impending universe. In such systems the cooling of the heat sinks are generally achieved through the impingement of air jet. Assuming the air jet to be continues & incompressible fluid, the heat dissipation rate over the target surface seems to either uniform or well characterized in radial direction. In order to study the characteristic of heat dissipation rate, a graph of Nusselt number versus radial distance over the target surface is plotted. This is done at various injection and geometric parameters. The resulting trend of Nusselt profile manifests a gradual decrement in its magnitude with increase in the radial distance from the stagnation point. This is the property of characterized Nusselt distribution profile. In order to study the Nusselt distribution profile in more accurate sense, the present research takes an effort in numerically simulating the present geometry. A 2-D axis-symmetric geometric model is being proposed which consists of air (fluid) and aluminum (solid) as two vital computational domains. The computational simulations are being carried out using an appropriate turbulence model, in order to correctly predict the most accurate flow regime. This also enables the recording of necessary heat interactions. As far as the transition and intermediacy in the flow structure which occurs at target surface is concerned, prediction of accurate flow profile using commercial turbulence model becomes difficult. In order to predict these vital phenomenon, SST turbulence model along with Gamma – Theta transitional model is solved simultaneously in a commercial CFX solver. At lower nozzle - target spacing and higher impinging velocity, Nusselt distribution curve was observed to posses some unpredicted and localized secondary rise. The occurrence of such secondary peaks increases the magnitude of area average heat transfer rate. As per the survey, very less light is observed in the research areas of determining the exact cause and the intervening range for the occurrence of such peaks. Looking into this issue the current research focuses over the determination of the critical constant and its magnitude within which these peaks exists. The non dimensional constant representing the critical magnitude is defined as a ratio of diameter based Reynolds number with nozzle - target spacing (Z/d). While the corresponding critical magnitude was approximately investigated to be 6000. Not only that the present work takes an initiative in mapping the velocity contours at different values of this non dimensional constant. This enables a physical understanding of the flow profile at different impinging condition. A very contiguous observation of such contours demonstrates the occurrence of a transition region in the flow regime to be responsible for the origin of such peaks

Stance of Sports and Fitness: A Scientometric Review

Abstract: Sport and fitness are physical requirements in the same way that humans require food and water. On the other hand, sport and fitness is a highly complex field of study, complicating attempts to define critical terms, resulting in a relative lack of scientometric analysis. The study goal is to look at the development of sport and fitness research around the world, using the Scopus and Web of Science databases as its foundation. Materials and methods. Publications are gathered using the Scopus and Web of Science databases as well as scientometric parameters, including worldwide publication trends, the authors who receive the most citations, the amount of citations, and author keywords. Results. The results show the authors’ keywords analysis was inspected based on their relationship to physical activity, physical exercise, and physical training. The United States was the most active country, with 601 publications. As expected, the United States is a leader in physical activity promotion, with 19.3 percent of the population participating in sports and exercising daily in 2019. The International Journal of Environmental Research and Public Health from Switzerland leads 68 publications, which is another noteworthy finding. Additionally, according to this analysis, Ortega, F.B., of the School of Medicine, University of Granada, Madrid, Spain, is the author who publishes the most documents with 33 in total. Conclusions. According to our research, the top five keywords that gained traction over the previous two years were "Cardiorespiratory Fitness," "Body Composition," "Health," "Physical Activity," and "Adolescents." The study value to the field of sports and fitness is that it provides readers and upcoming researchers with a wide range of sports and fitness trends from the past and present. Additionally, the study findings will aid future academics in predicting potential industry trends.