Pub Date : 2024-01-31DOI: 10.53893/ijmeas.v2i1.235
Ahmad Zikri, Herlin Sumarna, Baiti Hidayati, Zainuri Anwar, Fenoria Putri, Ahmad Zamheri, S. M. Negash, Gaizka Ghifari Nasution
The research employs a thermodynamic simulation method using an Engineering Equation Solver (EES), relying on theoretical calculations. This method is integrated into a geothermal power plant, precisely focusing on geothermal source temperatures of approximately 95ºC. The investigation centers on the heat transfer process within a high-temperature heat transfer fluid from geothermal sources, conveying stored heat to the Organic Rankine Cycle (ORC) evaporator. Three specific working fluids, R134a, R11, and R22, examine working fluid selection for ORC at 95ºC. The results highlight the R11 organic fluid as an optimal compromise, excelling in two crucial criteria. Firstly, R11 exhibits the highest net mechanical power, = 34.81 kW compared to alternative fluids. Secondly, it boasts the best energetic efficiency of the cycle, registering = 16.01%, outperforming both R134a ( = 13.17%) and R22 ( = 12.64%). In summary, this study conducts a focused analysis of the energy aspects of an Organic Rankine Cycle (ORC) for electricity production using geothermal sources and organic fluids. Operating at a geothermal source temperature of 95ºC with a water flow rate of 80 lt/s and environmental conditions at 20ºC, the parametric study emphasizes the superiority of the R11 organic fluid. R11 emerges as the optimal choice, demonstrating the highest net mechanical power and superior energetic efficiency compared to alternative fluids, thereby contributing valuable insights to advancing sustainable and efficient energy technologies.
{"title":"Geothermal Power Generation: Harnessing Electrical Energy Through The Organic Rankine Cycle (ORC) System","authors":"Ahmad Zikri, Herlin Sumarna, Baiti Hidayati, Zainuri Anwar, Fenoria Putri, Ahmad Zamheri, S. M. Negash, Gaizka Ghifari Nasution","doi":"10.53893/ijmeas.v2i1.235","DOIUrl":"https://doi.org/10.53893/ijmeas.v2i1.235","url":null,"abstract":"The research employs a thermodynamic simulation method using an Engineering Equation Solver (EES), relying on theoretical calculations. This method is integrated into a geothermal power plant, precisely focusing on geothermal source temperatures of approximately 95ºC. The investigation centers on the heat transfer process within a high-temperature heat transfer fluid from geothermal sources, conveying stored heat to the Organic Rankine Cycle (ORC) evaporator. Three specific working fluids, R134a, R11, and R22, examine working fluid selection for ORC at 95ºC. The results highlight the R11 organic fluid as an optimal compromise, excelling in two crucial criteria. Firstly, R11 exhibits the highest net mechanical power, = 34.81 kW compared to alternative fluids. Secondly, it boasts the best energetic efficiency of the cycle, registering = 16.01%, outperforming both R134a ( = 13.17%) and R22 ( = 12.64%). In summary, this study conducts a focused analysis of the energy aspects of an Organic Rankine Cycle (ORC) for electricity production using geothermal sources and organic fluids. Operating at a geothermal source temperature of 95ºC with a water flow rate of 80 lt/s and environmental conditions at 20ºC, the parametric study emphasizes the superiority of the R11 organic fluid. R11 emerges as the optimal choice, demonstrating the highest net mechanical power and superior energetic efficiency compared to alternative fluids, thereby contributing valuable insights to advancing sustainable and efficient energy technologies.","PeriodicalId":511506,"journal":{"name":"International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140470566","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 : 2024-01-31DOI: 10.53893/ijmeas.v2i1.231
Oldy Fahlovi, Zeluyvenca Avista
The use of air conditioning (AC) systems has greatly improved human comfort since the 20th century. However, challenges like the greenhouse effect, global warming, and increased energy consumption pose significant problems. To address these issues, a common solution is the use of desiccants to absorb air humidity, though regenerating them with a boiler requires additional energy. This study investigates the application of Heat Pipe Heat Exchanger (HPHE) to harness wasted heat as a preheating medium in a regeneration system. Solutions of calcium chloride (CaCl2) desiccants, ranging in concentrations of 36%, 49%, and 62%, coupled with flow rates of 0.1, 0.15, and 0.2 liters per minute, were employed to evaluate both the effectiveness and the visual quality of the regeneration system. Results showed the highest temperature difference with a 62% concentration desiccant at a flow rate of 0.15 liters/minute, approximately ±2.35°C. The regenerator and dehumidifier achieved peak effectiveness at a concentration of 62% and a flow rate of 0.2 lpm, recording values of 23.56% and 45.31%, respectively. This research proposes a practical solution for recovering wasted heat in AC regeneration systems, reducing energy consumption, and improving desiccant utilization efficiency.
{"title":"Empirical Investigation of the Efficiency of Heat Pipe Heat Exchanger as a Preheater in the Regeneration System of Liquid Calcium Chloride (CaCl2)","authors":"Oldy Fahlovi, Zeluyvenca Avista","doi":"10.53893/ijmeas.v2i1.231","DOIUrl":"https://doi.org/10.53893/ijmeas.v2i1.231","url":null,"abstract":"The use of air conditioning (AC) systems has greatly improved human comfort since the 20th century. However, challenges like the greenhouse effect, global warming, and increased energy consumption pose significant problems. To address these issues, a common solution is the use of desiccants to absorb air humidity, though regenerating them with a boiler requires additional energy. This study investigates the application of Heat Pipe Heat Exchanger (HPHE) to harness wasted heat as a preheating medium in a regeneration system. Solutions of calcium chloride (CaCl2) desiccants, ranging in concentrations of 36%, 49%, and 62%, coupled with flow rates of 0.1, 0.15, and 0.2 liters per minute, were employed to evaluate both the effectiveness and the visual quality of the regeneration system. Results showed the highest temperature difference with a 62% concentration desiccant at a flow rate of 0.15 liters/minute, approximately ±2.35°C. The regenerator and dehumidifier achieved peak effectiveness at a concentration of 62% and a flow rate of 0.2 lpm, recording values of 23.56% and 45.31%, respectively. This research proposes a practical solution for recovering wasted heat in AC regeneration systems, reducing energy consumption, and improving desiccant utilization efficiency.","PeriodicalId":511506,"journal":{"name":"International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)","volume":"162 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140473974","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 : 2024-01-31DOI: 10.53893/ijmeas.v2i1.236
Jasmine Pandini, Muhammad Asyrad Bin Zulkipli, Fenoria Putri
The rapid advancement of technology has led to the emergence of smart systems that aim to enhance convenience, energy efficiency, and safety. In this study, we present the development of an automatic door and light system utilizing a NodeMCU sensor. The system is designed to automatically control open and close the door, as well as lighting in indoor environments. To implement the system, this experiment utilized the NodeMCU sensors onboard Wi-Fi capabilities, enabling remote control and monitoring via a dedicated mobile application. The application provides users with the ability to customize various system parameters, according to their specific requirements. This development offers a practical and connected solution to automate door and light, increasing safety, comfort and energy efficiency in premise, house or any buildings. It can enable users to control both the door and light remotely, providing convenience and flexibility. This automatic sliding door and light can unlock the system by sending commands through the Blynk application on the user's smartphone, then NodeMCU sensor as a microcontroller will confirm the command and send data to other components to move sliding door and turn on the light, the use of this system is very effective because it makes it easier for users to open and close the door and turn on and turn off the light without extra efforts.
{"title":"Concept Development of Automatic Sliding Door and Light Using NodeMCU Sensor","authors":"Jasmine Pandini, Muhammad Asyrad Bin Zulkipli, Fenoria Putri","doi":"10.53893/ijmeas.v2i1.236","DOIUrl":"https://doi.org/10.53893/ijmeas.v2i1.236","url":null,"abstract":"The rapid advancement of technology has led to the emergence of smart systems that aim to enhance convenience, energy efficiency, and safety. In this study, we present the development of an automatic door and light system utilizing a NodeMCU sensor. The system is designed to automatically control open and close the door, as well as lighting in indoor environments. To implement the system, this experiment utilized the NodeMCU sensors onboard Wi-Fi capabilities, enabling remote control and monitoring via a dedicated mobile application. The application provides users with the ability to customize various system parameters, according to their specific requirements. This development offers a practical and connected solution to automate door and light, increasing safety, comfort and energy efficiency in premise, house or any buildings. It can enable users to control both the door and light remotely, providing convenience and flexibility. This automatic sliding door and light can unlock the system by sending commands through the Blynk application on the user's smartphone, then NodeMCU sensor as a microcontroller will confirm the command and send data to other components to move sliding door and turn on the light, the use of this system is very effective because it makes it easier for users to open and close the door and turn on and turn off the light without extra efforts.","PeriodicalId":511506,"journal":{"name":"International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)","volume":"333 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140473216","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 : 2024-01-31DOI: 10.53893/ijmeas.v2i1.242
Tri Satya Ramadhoni, Ahmad Imam Rifa'i, Zainuri Anwar, Baiti Hidayati, Herlin Sumarna, Toni Okviyanto, Rachmat Dwi Sampurno
This study aims to determine the strength of the prototype car frame created by the SMES (Sriwijaya Mechanical Engineering Squad) team in participating in the KMHE (Energy Efficient Car Contest) and SEM (Shell Eco-Marathon). This prototype vehicle is an energy-efficient car with an electric motor drive and utilizes a hollow rectangular tube-shaped frame with aluminum 6061 material. The overall dimensions of the car frame are 2500x410x540 mm. Static loading analysis was conducted using manual calculations and computer simulations. Static loading was performed on seven support bars, the main bar, and the overall prototype car frame. Applied loads include the electric motor load, control panel, battery load, driver's body load, driver's legs, front body load, rollbar body load, rear body load, and reaction loads from bars receiving direct loads. Autodesk Inventor software with frame analysis features was used in the simulation process. Based on the results of manual calculations and computer simulations, the difference in the average results of maximum bending moment, maximum stress, and displacement on the seven types of support bars, with a small error tolerance below 10%, is 1.01%, 5.24%, and 3.25%, respectively. Based on computer simulation results for the main bar and seven types of support bars, the highest maximum stress occurs in the main bar, which is 128727.37 N.
{"title":"Static Analysis of Electric Vehicle Prototype Frame","authors":"Tri Satya Ramadhoni, Ahmad Imam Rifa'i, Zainuri Anwar, Baiti Hidayati, Herlin Sumarna, Toni Okviyanto, Rachmat Dwi Sampurno","doi":"10.53893/ijmeas.v2i1.242","DOIUrl":"https://doi.org/10.53893/ijmeas.v2i1.242","url":null,"abstract":"This study aims to determine the strength of the prototype car frame created by the SMES (Sriwijaya Mechanical Engineering Squad) team in participating in the KMHE (Energy Efficient Car Contest) and SEM (Shell Eco-Marathon). This prototype vehicle is an energy-efficient car with an electric motor drive and utilizes a hollow rectangular tube-shaped frame with aluminum 6061 material. The overall dimensions of the car frame are 2500x410x540 mm. Static loading analysis was conducted using manual calculations and computer simulations. Static loading was performed on seven support bars, the main bar, and the overall prototype car frame. Applied loads include the electric motor load, control panel, battery load, driver's body load, driver's legs, front body load, rollbar body load, rear body load, and reaction loads from bars receiving direct loads. Autodesk Inventor software with frame analysis features was used in the simulation process. Based on the results of manual calculations and computer simulations, the difference in the average results of maximum bending moment, maximum stress, and displacement on the seven types of support bars, with a small error tolerance below 10%, is 1.01%, 5.24%, and 3.25%, respectively. Based on computer simulation results for the main bar and seven types of support bars, the highest maximum stress occurs in the main bar, which is 128727.37 N.","PeriodicalId":511506,"journal":{"name":"International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)","volume":"111 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140477899","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 : 2024-01-31DOI: 10.53893/ijmeas.v2i1.232
Adhim Fandi, Hermanu Kusbandono
This automatic motorbike uses an automatic transmission system called CVT (Contynously Variable Transmission). CVT is a system that automatically changes speed according to engine speed. This machine does not use transmission gears, but instead uses two pulleys (front and rear) which are connected by a belt (v-belt. The advantege of a CVt automatic transmission is that it can provide speed changes in torque from the engine to the rear whells automatically. This research aims to determine the effect of roller weight on the power and engine torque of a 110 cc two wheeled vehicle. The background of this research is to determine the power and torque of motorbikes for each roller weight studied and to draw conclusions about better use of rollers weight. This research uses experimental research methods, the materials used are standard 12gr,11gr,10gr,9gr,8gr rollers, as a comparison and 110cc injection beat motorbikes. The toll used in this research is a dynamometer. This tool shows directly the maximum power results at a certain rpm. Changes in the weight of the Honda Beat 110cc CVT roller affect the power produced by the engine. Changes in roller weight can affect the size of the engine’s power and torque. This in proven by data showing changes in engine power and torque during each test. Therefore, it is hoped that the result of this test can be used as a reference for improving engine peformance in vehicles.
{"title":"Comparison of Standard and Racing Roller Weight Variations on CVT on the Power and Torque of the Honda Beat 110cc","authors":"Adhim Fandi, Hermanu Kusbandono","doi":"10.53893/ijmeas.v2i1.232","DOIUrl":"https://doi.org/10.53893/ijmeas.v2i1.232","url":null,"abstract":"This automatic motorbike uses an automatic transmission system called CVT (Contynously Variable Transmission). CVT is a system that automatically changes speed according to engine speed. This machine does not use transmission gears, but instead uses two pulleys (front and rear) which are connected by a belt (v-belt. The advantege of a CVt automatic transmission is that it can provide speed changes in torque from the engine to the rear whells automatically. This research aims to determine the effect of roller weight on the power and engine torque of a 110 cc two wheeled vehicle. The background of this research is to determine the power and torque of motorbikes for each roller weight studied and to draw conclusions about better use of rollers weight. This research uses experimental research methods, the materials used are standard 12gr,11gr,10gr,9gr,8gr rollers, as a comparison and 110cc injection beat motorbikes. The toll used in this research is a dynamometer. This tool shows directly the maximum power results at a certain rpm. Changes in the weight of the Honda Beat 110cc CVT roller affect the power produced by the engine. Changes in roller weight can affect the size of the engine’s power and torque. This in proven by data showing changes in engine power and torque during each test. Therefore, it is hoped that the result of this test can be used as a reference for improving engine peformance in vehicles.","PeriodicalId":511506,"journal":{"name":"International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)","volume":"13 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140478272","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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