Pub Date : 2022-12-14DOI: 10.35429/jtd.2022.18.6.1.11
Raquel Ochoa-Ornelas, Annet VARGAS-DUEÑAS, Patricia Elizabeth Figueroa-Millán
When issuing avocado export certificates, a high volume of data is generated. Consequently, its analysis is complex due to processing times. This paper presents a Web platform that can analyze and process sequences and comparative statistics with projections during the management of these certificates. During the development phase, interviews were conducted with users to gather the requirements by the Jalisco Avocado Growers and Exporters Association (APEAJAL), through a formal specification using the Unified Modeling Language (UML). Programming languages for coding such as Android Studio, PHP, JavaScript, HTML5, AJAX, jQuery, Bootstrap and MySQL were used. This project provides support for decision-making processes, favoring strategies in the association's senior management, contributing significantly to offering a reliable platform for the registration and monitoring of certificates.
{"title":"Data analytics in the management of avocado export certificates","authors":"Raquel Ochoa-Ornelas, Annet VARGAS-DUEÑAS, Patricia Elizabeth Figueroa-Millán","doi":"10.35429/jtd.2022.18.6.1.11","DOIUrl":"https://doi.org/10.35429/jtd.2022.18.6.1.11","url":null,"abstract":"When issuing avocado export certificates, a high volume of data is generated. Consequently, its analysis is complex due to processing times. This paper presents a Web platform that can analyze and process sequences and comparative statistics with projections during the management of these certificates. During the development phase, interviews were conducted with users to gather the requirements by the Jalisco Avocado Growers and Exporters Association (APEAJAL), through a formal specification using the Unified Modeling Language (UML). Programming languages for coding such as Android Studio, PHP, JavaScript, HTML5, AJAX, jQuery, Bootstrap and MySQL were used. This project provides support for decision-making processes, favoring strategies in the association's senior management, contributing significantly to offering a reliable platform for the registration and monitoring of certificates.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116859865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-31DOI: 10.35429/jtd.2021.16.5.1.12
Edgar Alfredo González-Galindo, Francisco Javier Domínguez-Romero, J. Pérez-García, Víctor Hugo Soriano-Hernández
The programming was designed to develop reports that include mathematical and graphical analysis during the online class modality. The report generator included within the MATLAB software libraries allows the generation of files in pdf, word, power point and html formats to be developed through programming. The software captures and generates dynamic reports of the results and graphical expressions to document the results in a single report, facilitating collaboration with other users to share a template based on professional standards in companies, organizations, educational institutions and universities. Importing libraries like mlreportgen.dom and mlreportgen.report into a script, specifies the structure of objects such as the header, titles and subtitles, image footer and table citation. The report for the delivery of online activities, students are required to enter their personal information, the report includes the equations and the results generated by the template makes it easy for students to deliver the activities instantly. Obtaining a script capable of generating reports with professional standards of remote activities, developed for delivery, thus allowing immediate collaboration and evaluation.
{"title":"Programming to develop reports during online classes generating docx or pdf files including mathematical analysis and graphic expression of remote activities","authors":"Edgar Alfredo González-Galindo, Francisco Javier Domínguez-Romero, J. Pérez-García, Víctor Hugo Soriano-Hernández","doi":"10.35429/jtd.2021.16.5.1.12","DOIUrl":"https://doi.org/10.35429/jtd.2021.16.5.1.12","url":null,"abstract":"The programming was designed to develop reports that include mathematical and graphical analysis during the online class modality. The report generator included within the MATLAB software libraries allows the generation of files in pdf, word, power point and html formats to be developed through programming. The software captures and generates dynamic reports of the results and graphical expressions to document the results in a single report, facilitating collaboration with other users to share a template based on professional standards in companies, organizations, educational institutions and universities. Importing libraries like mlreportgen.dom and mlreportgen.report into a script, specifies the structure of objects such as the header, titles and subtitles, image footer and table citation. The report for the delivery of online activities, students are required to enter their personal information, the report includes the equations and the results generated by the template makes it easy for students to deliver the activities instantly. Obtaining a script capable of generating reports with professional standards of remote activities, developed for delivery, thus allowing immediate collaboration and evaluation.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130432103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-31DOI: 10.35429/jtd.2021.16.5.13.21
Alondra Jaquelinne Quezada-Arguijo, M. J. Pozas-Cárdenas, Arturo Curiel-Anaya, David Hernández-Sánchez
Instructional design has been integrated not only in processes for the generation of didactic materials oriented to education but also in other types of projects oriented to industry, the health sector, commerce, etc., where planning is reflected of solving a problem that involves a process of teaching or learning knowledge. This article presents the process of developing a mobile application using as a basis the implementation of the Jonassen Instructional Design model. Being a constructivist model, the reader will be able to observe how diverse knowledge of various methodologies are integrated, such as the Snowflake that is well structured and focuses on planning and creating novels, and the OOHDM that is oriented to the development of web applications using elements of hypermedia, so that in the end you get a useful and versatile mobile application that you can download freely from the Google Play Store.
{"title":"Jonassen model in the development of integrative projects","authors":"Alondra Jaquelinne Quezada-Arguijo, M. J. Pozas-Cárdenas, Arturo Curiel-Anaya, David Hernández-Sánchez","doi":"10.35429/jtd.2021.16.5.13.21","DOIUrl":"https://doi.org/10.35429/jtd.2021.16.5.13.21","url":null,"abstract":"Instructional design has been integrated not only in processes for the generation of didactic materials oriented to education but also in other types of projects oriented to industry, the health sector, commerce, etc., where planning is reflected of solving a problem that involves a process of teaching or learning knowledge. This article presents the process of developing a mobile application using as a basis the implementation of the Jonassen Instructional Design model. Being a constructivist model, the reader will be able to observe how diverse knowledge of various methodologies are integrated, such as the Snowflake that is well structured and focuses on planning and creating novels, and the OOHDM that is oriented to the development of web applications using elements of hypermedia, so that in the end you get a useful and versatile mobile application that you can download freely from the Google Play Store.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130303081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.35429/jad.2021.13.5.29.37
Demetrio Castelán-Urquiza
One way in which universities measure the level of competencies achieved or identify the level of academic knowledge and skills of graduates is through the General Examination for Undergraduate Exit (EGEL). Know the level of performance of the General Examination for the Graduate Degree in Architecture (EGEL-ARQUI) of the students before and during the pandemic. The generation that obtained the highest average score in the different areas is that of 2019 with 946 points and two students achieved satisfactory performance, followed by that of 2020 with 928 points with one student in satisfactory performance and the lowest in score. It is the generation of the year 2018 with 898 points, satisfactory performances were not achieved. The area with the lowest score on average was presented in the Architectural Project with 800 points on average of the three generations, being the year 2020 (COVID-19 pandemic), the lowest average with 760 points.
{"title":"Performance level of the General Exam for the Graduate of the Bachelor of Architecture (EGEL-ARQUI) of the Tecnológico de Estudios Superiores de Valle de Bravo (TESVB) in the pandemic","authors":"Demetrio Castelán-Urquiza","doi":"10.35429/jad.2021.13.5.29.37","DOIUrl":"https://doi.org/10.35429/jad.2021.13.5.29.37","url":null,"abstract":"One way in which universities measure the level of competencies achieved or identify the level of academic knowledge and skills of graduates is through the General Examination for Undergraduate Exit (EGEL). Know the level of performance of the General Examination for the Graduate Degree in Architecture (EGEL-ARQUI) of the students before and during the pandemic. The generation that obtained the highest average score in the different areas is that of 2019 with 946 points and two students achieved satisfactory performance, followed by that of 2020 with 928 points with one student in satisfactory performance and the lowest in score. It is the generation of the year 2018 with 898 points, satisfactory performances were not achieved. The area with the lowest score on average was presented in the Architectural Project with 800 points on average of the three generations, being the year 2020 (COVID-19 pandemic), the lowest average with 760 points.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124116233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.35429/jtd.2021.15.5.33.39
Vianney Hernández-López, Leticia López-Valdivieso, Carlos Mario Martínez-Izquierdo, Ezequiel Notario-Priego
Virtual laboratories are considered the simulation of a real laboratory, where the behavior of a certain is studied using mathematical models, and although it does not interact physically with the processes or systems, experimentation with simulated models it is comparable to reality. The objective is to recognize the benefits that virtual laboratories offer the student, as a tool in problem solving, linking theory with practice, and developing teamwork, all within distance learning. Therefore, a compilation of different sources of information regarding virtual laboratories was made, where it is stated that the interviewees who make use of this tool for their learning obtained a favorable response by identifying that they develop skills that prepare them for their experimental participation in a future. Therefore, it is considered a strategy for quality teaching.
{"title":"Virtual laboratories, an educational resource as a strategy for quality education","authors":"Vianney Hernández-López, Leticia López-Valdivieso, Carlos Mario Martínez-Izquierdo, Ezequiel Notario-Priego","doi":"10.35429/jtd.2021.15.5.33.39","DOIUrl":"https://doi.org/10.35429/jtd.2021.15.5.33.39","url":null,"abstract":"Virtual laboratories are considered the simulation of a real laboratory, where the behavior of a certain is studied using mathematical models, and although it does not interact physically with the processes or systems, experimentation with simulated models it is comparable to reality. The objective is to recognize the benefits that virtual laboratories offer the student, as a tool in problem solving, linking theory with practice, and developing teamwork, all within distance learning. Therefore, a compilation of different sources of information regarding virtual laboratories was made, where it is stated that the interviewees who make use of this tool for their learning obtained a favorable response by identifying that they develop skills that prepare them for their experimental participation in a future. Therefore, it is considered a strategy for quality teaching.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126027922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.35429/jtd.2021.15.5.23.32
M. Espericueta-Medina, Lilia Sánchez-Rivera, M. Cepeda-González, Jaqueline Mireles-Palomo
Learning styles are different methods that students use to learn, influenced by different factors that modify this learning, such as motivation, study methods, and the student's attitude, among others. This work focuses on the learning styles and interests of the university student, the main objective is to identify the factors that affect the learning style and interests of higher education students in times of pandemic. The methodology was integrated from the research instrument that generated information for the explanation of this issue, its focus being quantitative, in addition to the theoretical value based on the integration of theories. The research was carried out with a sample of 1,412 higher education students. The instrument was designed considering 160 variables, 10 signal variables and 150 variables of learning styles and interests divided into several subdimensions, the STATISTIC program was used for statistical treatments based on frequencies, percentages, comparison and factorial analysis. Among the main research results it was found that women attend college because they have an interest in learning and preparing to successfully achieve their goals, and not just because of a college degree, unlike men. In addition, students are clear that experience is essential to develop the knowledge acquired, having a real experience of what the world of work is, venturing into them and at the same time being learning. The intervention proposal is to promote in the universities that from the first semesters or semesters the student is allowed to have a real experience in the labor field about his career.
{"title":"College student learning styles and interests in times of pandemic","authors":"M. Espericueta-Medina, Lilia Sánchez-Rivera, M. Cepeda-González, Jaqueline Mireles-Palomo","doi":"10.35429/jtd.2021.15.5.23.32","DOIUrl":"https://doi.org/10.35429/jtd.2021.15.5.23.32","url":null,"abstract":"Learning styles are different methods that students use to learn, influenced by different factors that modify this learning, such as motivation, study methods, and the student's attitude, among others. This work focuses on the learning styles and interests of the university student, the main objective is to identify the factors that affect the learning style and interests of higher education students in times of pandemic. The methodology was integrated from the research instrument that generated information for the explanation of this issue, its focus being quantitative, in addition to the theoretical value based on the integration of theories. The research was carried out with a sample of 1,412 higher education students. The instrument was designed considering 160 variables, 10 signal variables and 150 variables of learning styles and interests divided into several subdimensions, the STATISTIC program was used for statistical treatments based on frequencies, percentages, comparison and factorial analysis. Among the main research results it was found that women attend college because they have an interest in learning and preparing to successfully achieve their goals, and not just because of a college degree, unlike men. In addition, students are clear that experience is essential to develop the knowledge acquired, having a real experience of what the world of work is, venturing into them and at the same time being learning. The intervention proposal is to promote in the universities that from the first semesters or semesters the student is allowed to have a real experience in the labor field about his career.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116316154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.35429/jtd.2021.15.5.1.10
Ana Alejandra Patiño-Ortiz, L. Y. Villagrán-Villegas, M. Martínez-Cruz, J. C. Anzelmetti-Zaragoza
In Mexico, the Legal System contemplates a broad set of agencies responsible to the justice imparting, therefore for its management it is necessary to have a systemic model that allows to contribute, in a more adequate way, to the entire set of subsystems; in such a way that the institutions responsible to administering justice are capable of accurately and expeditiously determining the results and conclusions in the areas responsible to the administration of justice. The implementation and application of models with a systemic approach, such as Viable Systems Models, allow us to respond to many problems at different integrated levels of abstraction of sociotechnical systems, such as those responsible to justice administration in Mexico. This research work purpose is to design a Viable Model for the Mexican Legal System, which will allow to provide justice delivery systems with a tool that streamlines, and facilitates the management, control and handling of the information used in the National Legal System. The systems approach application in the design of viable systems allows to unite different expert’s views to give a comprehensive response to the analyzed cases.
{"title":"Viable model of the Mexican legal system: A transdisciplinary systemic vision","authors":"Ana Alejandra Patiño-Ortiz, L. Y. Villagrán-Villegas, M. Martínez-Cruz, J. C. Anzelmetti-Zaragoza","doi":"10.35429/jtd.2021.15.5.1.10","DOIUrl":"https://doi.org/10.35429/jtd.2021.15.5.1.10","url":null,"abstract":"In Mexico, the Legal System contemplates a broad set of agencies responsible to the justice imparting, therefore for its management it is necessary to have a systemic model that allows to contribute, in a more adequate way, to the entire set of subsystems; in such a way that the institutions responsible to administering justice are capable of accurately and expeditiously determining the results and conclusions in the areas responsible to the administration of justice. The implementation and application of models with a systemic approach, such as Viable Systems Models, allow us to respond to many problems at different integrated levels of abstraction of sociotechnical systems, such as those responsible to justice administration in Mexico. This research work purpose is to design a Viable Model for the Mexican Legal System, which will allow to provide justice delivery systems with a tool that streamlines, and facilitates the management, control and handling of the information used in the National Legal System. The systems approach application in the design of viable systems allows to unite different expert’s views to give a comprehensive response to the analyzed cases.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"367 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122848415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-31DOI: 10.35429/JTD.2020.14.4.15-19
Leticia López-Valdivieso, Hortensia Eliseo-Dantés, M. C. Tejero-Rivas, Jucelly Castro-De la Cruz
The objective of this study is to analyze the behavior of liquid molecules during an evaporation process, a mathematical model is proposed through mass a balance that describes said behavior under steady-state conditions and the variation in composition is analyzed in detail, through a finite space. In order to know the concentration profile, it is necessary to characterize the behavior of the moisture present in the medium as part of the parameters that affect the system, which will at the same time allow knowing the molar composition of the water present in the medium or system of study. Temperature is another of the variables of great importance in the evaporation process, which is why a variation of the concentration profile will occur at different temperatures.
{"title":"Mathematical modeling of the diffusion of liquids in the gaseous phase by evaporation","authors":"Leticia López-Valdivieso, Hortensia Eliseo-Dantés, M. C. Tejero-Rivas, Jucelly Castro-De la Cruz","doi":"10.35429/JTD.2020.14.4.15-19","DOIUrl":"https://doi.org/10.35429/JTD.2020.14.4.15-19","url":null,"abstract":"The objective of this study is to analyze the behavior of liquid molecules during an evaporation process, a mathematical model is proposed through mass a balance that describes said behavior under steady-state conditions and the variation in composition is analyzed in detail, through a finite space. In order to know the concentration profile, it is necessary to characterize the behavior of the moisture present in the medium as part of the parameters that affect the system, which will at the same time allow knowing the molar composition of the water present in the medium or system of study. Temperature is another of the variables of great importance in the evaporation process, which is why a variation of the concentration profile will occur at different temperatures.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127072376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-31DOI: 10.35429/JTD.2020.12.4.1.6
Y. F. López-Álvarez, F. G. Peña-Lecona, Ricardo Jara-Ruíz, J. E. Herrera-Serrano
Digital holographic interferometry is a full field optical technique, used in the measurement of dynamic and non-contact events, this technique works with arrays where the initial acquisition of interference fringes is not necessary, but rather involves the superposition of two wave fronts. Where from the holograms and by means of a Fourier window-based processing it is feasible to recover the information of both intensity and phase. However, the interference fringes resulting from the demodulation of the holograms may have low intensity, affecting their subsequent analysis. In this work, the combination of the holographic techniques, filters and the superposition principle is proposed to increase the intensity of the fringes, the results show that using the Fourier method in combination with the superposition theorem is possible to obtain greater intensity between the minimum and maximum of the fringes.
{"title":"Increased intensity of interference fringes in Digital Holography","authors":"Y. F. López-Álvarez, F. G. Peña-Lecona, Ricardo Jara-Ruíz, J. E. Herrera-Serrano","doi":"10.35429/JTD.2020.12.4.1.6","DOIUrl":"https://doi.org/10.35429/JTD.2020.12.4.1.6","url":null,"abstract":"Digital holographic interferometry is a full field optical technique, used in the measurement of dynamic and non-contact events, this technique works with arrays where the initial acquisition of interference fringes is not necessary, but rather involves the superposition of two wave fronts. Where from the holograms and by means of a Fourier window-based processing it is feasible to recover the information of both intensity and phase. However, the interference fringes resulting from the demodulation of the holograms may have low intensity, affecting their subsequent analysis. In this work, the combination of the holographic techniques, filters and the superposition principle is proposed to increase the intensity of the fringes, the results show that using the Fourier method in combination with the superposition theorem is possible to obtain greater intensity between the minimum and maximum of the fringes.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129596071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-31DOI: 10.35429/JTD.2020.14.4.7.14
Eric André Valencia-Alejandro, J. Herrera-Romero, D. Colorado-Garrido, O. Silva-Aguilar
This paper presents the study of a simple effect absorption refrigeration system (SRA) using the ammonia-water working couple, with the incorporation of three economizers and their analysis of the first and second law of thermodynamics, emphasizing the effect of the operating temperatures and the efficiency of the exchangers on the refrigerant circulation ratio (RC), the coefficient of performance (COP) of the system and the destruction of exergy. In order to determine the thermodynamic properties at each point of the system and evaluate the performance of the SRA, was programmed a tool in MATLAB with the governing equations. The results show that: the exergy efficiency increases when the temperature in the evaporator decreases; and RC decreases with increasing temperature in the generator. As conclusion, an increase in the effectiveness of heat exchangers cannot only decrease the refrigerant circulation rate, but also increase the inlet temperature of the solution to the generator, so that the temperature difference between the solution and the heat source decreases, causing a decrease in the rate of exergy destruction in the generator and the increase in COP.
{"title":"Exergy analysis of the absorption refrigeration cycle using economizers","authors":"Eric André Valencia-Alejandro, J. Herrera-Romero, D. Colorado-Garrido, O. Silva-Aguilar","doi":"10.35429/JTD.2020.14.4.7.14","DOIUrl":"https://doi.org/10.35429/JTD.2020.14.4.7.14","url":null,"abstract":"This paper presents the study of a simple effect absorption refrigeration system (SRA) using the ammonia-water working couple, with the incorporation of three economizers and their analysis of the first and second law of thermodynamics, emphasizing the effect of the operating temperatures and the efficiency of the exchangers on the refrigerant circulation ratio (RC), the coefficient of performance (COP) of the system and the destruction of exergy. In order to determine the thermodynamic properties at each point of the system and evaluate the performance of the SRA, was programmed a tool in MATLAB with the governing equations. The results show that: the exergy efficiency increases when the temperature in the evaporator decreases; and RC decreases with increasing temperature in the generator. As conclusion, an increase in the effectiveness of heat exchangers cannot only decrease the refrigerant circulation rate, but also increase the inlet temperature of the solution to the generator, so that the temperature difference between the solution and the heat source decreases, causing a decrease in the rate of exergy destruction in the generator and the increase in COP.","PeriodicalId":104461,"journal":{"name":"Revista del Desarrollo Tecnologico","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133866174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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