Ravi Sekhar, Haider Rasheed Abdulshaheed, Harshavardhan Reddy Penubadi, J. F. Tawfeq, Azmi Shawkat Abdulbaq, A. D. Radhi, Pritesh Shah, H. M. Gheni, R. Khatwani, Neena Nanda, Pradip Mitra, Shubhra Aanand, Yitong Niu
Wireless mesh networks (WMNs) have become a popular solution for expanding internet service and communication in both urban and rural areas. However, the performance of WMNs depends on generating optimized time-division multiple access (TDMA) schedules, which distribute time into a list of slots called superframes. This study proposes novel meta-heuristic algorithms to generate TDMA link schedules in WMNs using two different interference/constraint models: multi-transmit-receive (MTR) and full-duplex (FD). The objectives of this study are to optimize the TDMA frame for packet transmission, satisfy the constraints, and minimize the end-to-end delay. The significant contributions of this study are: (1) proposing effective and efficient heuristic solutions to solve the NP-complete problem of generating optimal TDMA link schedules in WMNs; (2) investigating the new FD interference model to improve the network capacity above the physical layer. To achieve these objectives and contributions, the study uses two popular meta-heuristics, the artificial bee colony (ABC) and/or genetic algorithm (GA), to solve the known NP-complete problems of joint scheduling, power control, and rate control. The results of this study show that the proposed algorithms can generate optimized TDMA link schedules for both MTR and FD models. The joint routing and scheduling approach further minimizes end-to-end delay while maintaining the schedule's minimum length and/or maximum capacity. The proposed solution outperforms the existing solutions in terms of the number of active links, end-to-end delay, and network capacity. The research aims to improve the efficiency and effectiveness of WMNs in most applications that require high throughput and fast response time.
{"title":"Sustainable optimizing WMN performance through meta-heuristic TDMA link scheduling and routing","authors":"Ravi Sekhar, Haider Rasheed Abdulshaheed, Harshavardhan Reddy Penubadi, J. F. Tawfeq, Azmi Shawkat Abdulbaq, A. D. Radhi, Pritesh Shah, H. M. Gheni, R. Khatwani, Neena Nanda, Pradip Mitra, Shubhra Aanand, Yitong Niu","doi":"10.37868/hsd.v6i1.389","DOIUrl":"https://doi.org/10.37868/hsd.v6i1.389","url":null,"abstract":"Wireless mesh networks (WMNs) have become a popular solution for expanding internet service and communication in both urban and rural areas. However, the performance of WMNs depends on generating optimized time-division multiple access (TDMA) schedules, which distribute time into a list of slots called superframes. This study proposes novel meta-heuristic algorithms to generate TDMA link schedules in WMNs using two different interference/constraint models: multi-transmit-receive (MTR) and full-duplex (FD). The objectives of this study are to optimize the TDMA frame for packet transmission, satisfy the constraints, and minimize the end-to-end delay. The significant contributions of this study are: (1) proposing effective and efficient heuristic solutions to solve the NP-complete problem of generating optimal TDMA link schedules in WMNs; (2) investigating the new FD interference model to improve the network capacity above the physical layer. To achieve these objectives and contributions, the study uses two popular meta-heuristics, the artificial bee colony (ABC) and/or genetic algorithm (GA), to solve the known NP-complete problems of joint scheduling, power control, and rate control. The results of this study show that the proposed algorithms can generate optimized TDMA link schedules for both MTR and FD models. The joint routing and scheduling approach further minimizes end-to-end delay while maintaining the schedule's minimum length and/or maximum capacity. The proposed solution outperforms the existing solutions in terms of the number of active links, end-to-end delay, and network capacity. The research aims to improve the efficiency and effectiveness of WMNs in most applications that require high throughput and fast response time.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":"26 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140257908","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}
Ahmed Abdel Qader Ismail Alnajem, Mohammed Rahmah Fenjan Al-sudani
This research deals with the effect of job incentives in its two dimensions (financial and non-financial) as an independent variable on the dimensions of job performance (efficiency, effectiveness, productivity). Management is interested in improving the job performance of employees, in addition to knowing the extent to which management supports the motivation strategies followed. Sustainable development describes the dimensions of job performance mentioned above and the extent of their contribution to promoting and achieving the goals of the organization and testing the impact of the incentives variable on job performance. The research identified a set of hypotheses that were tested using the SPSS program, and a random sample of 50 professors and administrators working in the field of academic work in several private colleges was selected. The research reached a set of conclusions, the most important of which was that the total incentives had a weak role in the performance of the organization in question, except for the efficiency dimension, where it had a good role in influencing according to the variables included in the study model. The research also presented a set of recommendations and future proposals aimed at reducing the size of the studied problem.
{"title":"The role of financial and non-financial incentives in influencing the improvement of the academic performance level of employees: An applied study in Baghdad’s private colleges","authors":"Ahmed Abdel Qader Ismail Alnajem, Mohammed Rahmah Fenjan Al-sudani","doi":"10.37868/hsd.v6i1.393","DOIUrl":"https://doi.org/10.37868/hsd.v6i1.393","url":null,"abstract":"This research deals with the effect of job incentives in its two dimensions (financial and non-financial) as an independent variable on the dimensions of job performance (efficiency, effectiveness, productivity). Management is interested in improving the job performance of employees, in addition to knowing the extent to which management supports the motivation strategies followed. Sustainable development describes the dimensions of job performance mentioned above and the extent of their contribution to promoting and achieving the goals of the organization and testing the impact of the incentives variable on job performance. The research identified a set of hypotheses that were tested using the SPSS program, and a random sample of 50 professors and administrators working in the field of academic work in several private colleges was selected. The research reached a set of conclusions, the most important of which was that the total incentives had a weak role in the performance of the organization in question, except for the efficiency dimension, where it had a good role in influencing according to the variables included in the study model. The research also presented a set of recommendations and future proposals aimed at reducing the size of the studied problem.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":"24 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140258116","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}
Cruz García Lirios, Julio E. Crespo, Juan Masilla Sepulveda, Tirso Javier Hernández Gracia
Polarization in the media is a phenomenon classified as ambivalent and volatile because radical positions change to moderate and neutral. The objective of the study was to demonstrate this process in press releases and expert evaluations regarding the Sustainable Development Goals (SDG). A documentary, cross-sectional, exploratory, and retrospective work was carried out with a sample of press releases with national circulation and published from 2020 to 2023 headed with SDGs. The results verify the null hypothesis of significant differences between the theoretical structures concerning the empirical observations. The scope and limits of the study are discussed, as well as a local risk communication policy.
{"title":"Polarization networks around the SDGs in the press from 2020 to 2023","authors":"Cruz García Lirios, Julio E. Crespo, Juan Masilla Sepulveda, Tirso Javier Hernández Gracia","doi":"10.37868/hsd.v6i1.241","DOIUrl":"https://doi.org/10.37868/hsd.v6i1.241","url":null,"abstract":"Polarization in the media is a phenomenon classified as ambivalent and volatile because radical positions change to moderate and neutral. The objective of the study was to demonstrate this process in press releases and expert evaluations regarding the Sustainable Development Goals (SDG). A documentary, cross-sectional, exploratory, and retrospective work was carried out with a sample of press releases with national circulation and published from 2020 to 2023 headed with SDGs. The results verify the null hypothesis of significant differences between the theoretical structures concerning the empirical observations. The scope and limits of the study are discussed, as well as a local risk communication policy.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":"10 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139776230","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}
Cruz García Lirios, Julio E. Crespo, Juan Masilla Sepulveda, Tirso Javier Hernández Gracia
Polarization in the media is a phenomenon classified as ambivalent and volatile because radical positions change to moderate and neutral. The objective of the study was to demonstrate this process in press releases and expert evaluations regarding the Sustainable Development Goals (SDG). A documentary, cross-sectional, exploratory, and retrospective work was carried out with a sample of press releases with national circulation and published from 2020 to 2023 headed with SDGs. The results verify the null hypothesis of significant differences between the theoretical structures concerning the empirical observations. The scope and limits of the study are discussed, as well as a local risk communication policy.
{"title":"Polarization networks around the SDGs in the press from 2020 to 2023","authors":"Cruz García Lirios, Julio E. Crespo, Juan Masilla Sepulveda, Tirso Javier Hernández Gracia","doi":"10.37868/hsd.v6i1.241","DOIUrl":"https://doi.org/10.37868/hsd.v6i1.241","url":null,"abstract":"Polarization in the media is a phenomenon classified as ambivalent and volatile because radical positions change to moderate and neutral. The objective of the study was to demonstrate this process in press releases and expert evaluations regarding the Sustainable Development Goals (SDG). A documentary, cross-sectional, exploratory, and retrospective work was carried out with a sample of press releases with national circulation and published from 2020 to 2023 headed with SDGs. The results verify the null hypothesis of significant differences between the theoretical structures concerning the empirical observations. The scope and limits of the study are discussed, as well as a local risk communication policy.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":"166 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139836001","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}
The traditional method for assessing safety conditions at signalized intersections depends on historical crash data. Difficulty and long waits for data collection as well as lack of reliability, represent some limitations. As a result of safety evaluation using traditional methods, countermeasures may be proposed to improve the degree of safety. This paper aims to assess the effectiveness of countermeasures at signalized intersections using micro-simulation model (VISSM10) software and the Surrogate Safety Assessment Model (SSAM) to deal with traffic conflicts as surrogate measures rather than crash data. The study relied on VISSIM10 to create a trajectory file as input of SSAM to conduct a traffic safety assessment using traffic conflict indicators of time to collision (TTC). Four four-legged signalized intersections in the city of Diwaniya are chosen to assess safety and then propose appropriate countermeasures. Different countermeasures are tested through simulation to estimate their effectiveness using two measures: the increase in time to collision and the percentage reduction in traffic conflicts. The results showed that model calibration reduced the mean absolute error of prevention (MAPE) and improved the fit between both the actual conflicts and simulated conflicts. A validation simulation has been performed compared with the observed conflict. According to the linear regression the number that simulated conflicts which highly related to the number of actual conflicts. Additionally, R2 can be described by the difference in simulated conflicts. Results go with effectiveness based on crash data and promising for unknown ones.
{"title":"Simulated surrogate measures to assess the effectiveness of countermeasures at signalized intersections","authors":"Saif Abd-alzahraa, Hussein Ewadh","doi":"10.37868/hsd.v6i1.347","DOIUrl":"https://doi.org/10.37868/hsd.v6i1.347","url":null,"abstract":"The traditional method for assessing safety conditions at signalized intersections depends on historical crash data. Difficulty and long waits for data collection as well as lack of reliability, represent some limitations. As a result of safety evaluation using traditional methods, countermeasures may be proposed to improve the degree of safety. This paper aims to assess the effectiveness of countermeasures at signalized intersections using micro-simulation model (VISSM10) software and the Surrogate Safety Assessment Model (SSAM) to deal with traffic conflicts as surrogate measures rather than crash data. The study relied on VISSIM10 to create a trajectory file as input of SSAM to conduct a traffic safety assessment using traffic conflict indicators of time to collision (TTC). Four four-legged signalized intersections in the city of Diwaniya are chosen to assess safety and then propose appropriate countermeasures. Different countermeasures are tested through simulation to estimate their effectiveness using two measures: the increase in time to collision and the percentage reduction in traffic conflicts. The results showed that model calibration reduced the mean absolute error of prevention (MAPE) and improved the fit between both the actual conflicts and simulated conflicts. A validation simulation has been performed compared with the observed conflict. According to the linear regression the number that simulated conflicts which highly related to the number of actual conflicts. Additionally, R2 can be described by the difference in simulated conflicts. Results go with effectiveness based on crash data and promising for unknown ones.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":"22 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139531082","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}
Ahmed Chead, Ahmed Abbas Obaid, Abdulrazzaq Abdzaid Hussein
The design of a controller for a chemical reactor was studied. Based on the input-output feedback linearization, the controller was designed for a situation where the output of the system is the concentration. The reaction in the reactor is of the first-order type. First, the reactor is modeled and presented, and then a controller for this system is designed. The control system was implemented in Simulink MATLAB. The simulation results show that the designed controller is able to control the concentration in a wide range and its performance is desirable for changing either the disturbances or the set point.
{"title":"Design of a feedback linearizing controller for a CSTR reactor","authors":"Ahmed Chead, Ahmed Abbas Obaid, Abdulrazzaq Abdzaid Hussein","doi":"10.37868/hsd.v6i1.344","DOIUrl":"https://doi.org/10.37868/hsd.v6i1.344","url":null,"abstract":"The design of a controller for a chemical reactor was studied. Based on the input-output feedback linearization, the controller was designed for a situation where the output of the system is the concentration. The reaction in the reactor is of the first-order type. First, the reactor is modeled and presented, and then a controller for this system is designed. The control system was implemented in Simulink MATLAB. The simulation results show that the designed controller is able to control the concentration in a wide range and its performance is desirable for changing either the disturbances or the set point.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":" 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139623618","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}
During the summer, air conditioning is increasingly used in commercial and residential structures to provide thermal comfort. The elevated condenser pressure caused by high ambient temperatures has led to a significant increase in electricity consumption in dry, hot climates. Therefore, this article presents the results of a numerical simulation investigation into the feasibility of enhancing the performance of a conventional air conditioning unit by applying a direct evaporative cooling system. The objective is to increase the cooling capacity while decreasing power consumption. The program used a small window-type air conditioner configured to simulate various weather conditions. The numerical findings indicate that incorporating evaporative cooling aids improved the system's ability to overcome numerous obstacles, resulting in a 10–20% increase in refrigeration capacity. Additionally, power consumption was reduced by approximately 3%, and the discharge temperature fell by 6–10°C. The predicted mean vote standard (PMV) for thermal conditions for human occupants yielded favorable outcomes (normal-type). Despite the challenging climate conditions prevailing during the five sweltering summer months, water production demonstrated good results, particularly in September.
{"title":"Numerical simulation of integrating an air conditioner with an evaporative air cooler","authors":"Haider Mumtaz, Salman Hammdi","doi":"10.37868/hsd.v6i1.346","DOIUrl":"https://doi.org/10.37868/hsd.v6i1.346","url":null,"abstract":"During the summer, air conditioning is increasingly used in commercial and residential structures to provide thermal comfort. The elevated condenser pressure caused by high ambient temperatures has led to a significant increase in electricity consumption in dry, hot climates. Therefore, this article presents the results of a numerical simulation investigation into the feasibility of enhancing the performance of a conventional air conditioning unit by applying a direct evaporative cooling system. The objective is to increase the cooling capacity while decreasing power consumption. The program used a small window-type air conditioner configured to simulate various weather conditions. The numerical findings indicate that incorporating evaporative cooling aids improved the system's ability to overcome numerous obstacles, resulting in a 10–20% increase in refrigeration capacity. Additionally, power consumption was reduced by approximately 3%, and the discharge temperature fell by 6–10°C. The predicted mean vote standard (PMV) for thermal conditions for human occupants yielded favorable outcomes (normal-type). Despite the challenging climate conditions prevailing during the five sweltering summer months, water production demonstrated good results, particularly in September.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":" 47","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139623444","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}
Omer Cruz Caro, Manuel Antonio Morante Dávila, Alex Javier Sánchez Pantaleón, Maritza Revilla Bueloth, Ariel Kedy Chichipe Puscan
Analyzing the local value chain in coffee-producing regions can help identify obstacles and opportunities for economic development and growth. Faced with this, the objective of the study was to analyze the value chain in the Amazon region. For which, the survey was used to collect information from producers and those involved in the value chain. To map the chain, the GIZ Value Links methodology was used; the study population was 34 producers and representatives of organizations and institutions. The coffee value chain in the Amazon region is made up of producers as the first link, after them the local collectors such as associations and cooperatives are present and in turn free trade who are the intermediary buyers. Government institutions. The main international export markets are Canada, the United States, and Germany. The main difficulty for producers is the constant coffee pests that prevent good production, along with the lack of irrigation in the plots.
{"title":"Analysis of the coffee production chain in the Amazonas Region in 2023","authors":"Omer Cruz Caro, Manuel Antonio Morante Dávila, Alex Javier Sánchez Pantaleón, Maritza Revilla Bueloth, Ariel Kedy Chichipe Puscan","doi":"10.37868/hsd.v5i2.285","DOIUrl":"https://doi.org/10.37868/hsd.v5i2.285","url":null,"abstract":"Analyzing the local value chain in coffee-producing regions can help identify obstacles and opportunities for economic development and growth. Faced with this, the objective of the study was to analyze the value chain in the Amazon region. For which, the survey was used to collect information from producers and those involved in the value chain. To map the chain, the GIZ Value Links methodology was used; the study population was 34 producers and representatives of organizations and institutions. The coffee value chain in the Amazon region is made up of producers as the first link, after them the local collectors such as associations and cooperatives are present and in turn free trade who are the intermediary buyers. Government institutions. The main international export markets are Canada, the United States, and Germany. The main difficulty for producers is the constant coffee pests that prevent good production, along with the lack of irrigation in the plots.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":" 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139142998","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}
Pamela Hulse, Luis Betancur-Arboleda, A. Rincón-Quintero, J. Ascanio-Villabona, B. E. Tarazona-Romero
Pulsating heat pipes (PHPs) offer significant advantages for the thermal control of electronic components due to their simple manufacturing and high heat transfer rates. The reliability of PHPs has traditionally been assessed through long-life testing, but detailed reliability analyses from an equipment perspective are limited. The study of PHP reliability is essential due to its application and operational conditions. For instance, in aerospace applications these devices operate under severe conditions, and maintenance or replacement is impossible during operation, making them critical components in system functionality. The reliability analysis of PHPs focuses on the manufacturing process, considering future operating conditions. Although preliminary PHP testing will be conducted on Earth, laboratory conditions are less stringent due to the difficulty of replicating launch acceleration and space conditions for long-term testing under microgravity. This study presents an FMECA (Failure Modes, Effects, and Criticality Analysis) of the pulsating heat pipe manufacturing process, breaking down the production of each component. The results indicate that the most critical point is concentrated in the assembly of these components, leading to a higher incidence of welding failures. It recommends further work to improve welding and analyze mechanical stresses within the heat pipe.
{"title":"FMECA and FTA analysis applied to the manufacturing process of pulsating heat pipes","authors":"Pamela Hulse, Luis Betancur-Arboleda, A. Rincón-Quintero, J. Ascanio-Villabona, B. E. Tarazona-Romero","doi":"10.37868/hsd.v6i1.319","DOIUrl":"https://doi.org/10.37868/hsd.v6i1.319","url":null,"abstract":"Pulsating heat pipes (PHPs) offer significant advantages for the thermal control of electronic components due to their simple manufacturing and high heat transfer rates. The reliability of PHPs has traditionally been assessed through long-life testing, but detailed reliability analyses from an equipment perspective are limited. The study of PHP reliability is essential due to its application and operational conditions. For instance, in aerospace applications these devices operate under severe conditions, and maintenance or replacement is impossible during operation, making them critical components in system functionality. The reliability analysis of PHPs focuses on the manufacturing process, considering future operating conditions. Although preliminary PHP testing will be conducted on Earth, laboratory conditions are less stringent due to the difficulty of replicating launch acceleration and space conditions for long-term testing under microgravity. This study presents an FMECA (Failure Modes, Effects, and Criticality Analysis) of the pulsating heat pipe manufacturing process, breaking down the production of each component. The results indicate that the most critical point is concentrated in the assembly of these components, leading to a higher incidence of welding failures. It recommends further work to improve welding and analyze mechanical stresses within the heat pipe.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":"51 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139158496","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}
A. Rincón-Quintero, L. D. del Portillo-Valdés, C. Sandoval-Rodríguez
In a country like Colombia, food drying plays an important role in the extension of technology so that farmers improve the quality of their productivity. The objective of this work is to develop a system for acquiring thermodynamic variables, to establish the energy efficiency of a product drying oven, specifically for cocoa beans using Arduino hardware and LabView software. This research begins by establishing the variables to be measured and recorded by the DHT11 sensors, such as temperature and humidity. These sensors are connected to an Arduino Uno board that has an Atmel microcontroller, which captures the information from each of these. An algorithm was also developed that captures the temperature and humidity data and sends it through the serial port to the LabView software, in which the visualization on the front panel and programming in the block diagram have been developed, being viewed from the HMI (Human Machine Interface). For the experimental tests, 3,309 grams of fermented cocoa beans were taken, and dried for 36 hours, removing a total mass of water of 1,650 grams. The results show an energy efficiency of 10.62%, concluding that the drying oven that takes advantage of the residual heat of an 18000 BTU condenser integrated with the proposed variable system is suitable for drying cocoa beans. Despite this efficiency being low, it meets the objective of removing moisture from them.
{"title":"Evaluation of a cocoa dryer prototype using LabVIEW software and Arduino hardware","authors":"A. Rincón-Quintero, L. D. del Portillo-Valdés, C. Sandoval-Rodríguez","doi":"10.37868/hsd.v5i2.318","DOIUrl":"https://doi.org/10.37868/hsd.v5i2.318","url":null,"abstract":"In a country like Colombia, food drying plays an important role in the extension of technology so that farmers improve the quality of their productivity. The objective of this work is to develop a system for acquiring thermodynamic variables, to establish the energy efficiency of a product drying oven, specifically for cocoa beans using Arduino hardware and LabView software. This research begins by establishing the variables to be measured and recorded by the DHT11 sensors, such as temperature and humidity. These sensors are connected to an Arduino Uno board that has an Atmel microcontroller, which captures the information from each of these. An algorithm was also developed that captures the temperature and humidity data and sends it through the serial port to the LabView software, in which the visualization on the front panel and programming in the block diagram have been developed, being viewed from the HMI (Human Machine Interface). For the experimental tests, 3,309 grams of fermented cocoa beans were taken, and dried for 36 hours, removing a total mass of water of 1,650 grams. The results show an energy efficiency of 10.62%, concluding that the drying oven that takes advantage of the residual heat of an 18000 BTU condenser integrated with the proposed variable system is suitable for drying cocoa beans. Despite this efficiency being low, it meets the objective of removing moisture from them.","PeriodicalId":505792,"journal":{"name":"Heritage and Sustainable Development","volume":"416 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139183645","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：