Pub Date : 2023-08-17DOI: 10.55377/jurutera.v10i01.8449
Joshua Tri Saputra, Syamsul Bahri Widodo, Nazaruddin Abdul Rahman
Reinforced concrete is a crucial element in infrastructure. However, it is unfortunate that the issue of corrosion in reinforced concrete structures has a significant impact and requires detailed consideration. Since the 1980s, research on corrosion-related problems has been initiated, one of which involves the SACP (Sacrificial Anode Cathodic Protection) approach using Zn sacrificial anodes. The purpose of this method is to control the corrosion rate in reinforced concrete. Environmental factors, such as the composition of solutions, play a role in influencing the resulting corrosion rate. Therefore, research is conducted by applying different solutions, namely 4% and 5% NaCl solutions, as well as Freshwater. This aims to compare the effects of these solutions on the measured corrosion rate using Zn anodes. The test results over a 4-week period indicate that the 5% NaCl solution exhibits a very high corrosion rate, as evidenced by the corrosion potential value of -790.3 mV. Conversely, the freshwater solution demonstrates a lower corrosion rate, with a corrosion potential value of -225.6 mV and a corrosion risk of only around 10%. This research provides a deeper understanding of the impact of solutions on the corrosion rate in reinforced concrete and offers a more scientific and contemporary perspective in line with current developments.
{"title":"Effect of Nacl Solution on Protection Rate of BJTP 40 Steel (SNI 07-2052-200219) With Sacrificial Anode Cathodic Protection Utilizing Zn Anode","authors":"Joshua Tri Saputra, Syamsul Bahri Widodo, Nazaruddin Abdul Rahman","doi":"10.55377/jurutera.v10i01.8449","DOIUrl":"https://doi.org/10.55377/jurutera.v10i01.8449","url":null,"abstract":"Reinforced concrete is a crucial element in infrastructure. However, it is unfortunate that the issue of corrosion in reinforced concrete structures has a significant impact and requires detailed consideration. Since the 1980s, research on corrosion-related problems has been initiated, one of which involves the SACP (Sacrificial Anode Cathodic Protection) approach using Zn sacrificial anodes. The purpose of this method is to control the corrosion rate in reinforced concrete. Environmental factors, such as the composition of solutions, play a role in influencing the resulting corrosion rate. Therefore, research is conducted by applying different solutions, namely 4% and 5% NaCl solutions, as well as Freshwater. This aims to compare the effects of these solutions on the measured corrosion rate using Zn anodes. The test results over a 4-week period indicate that the 5% NaCl solution exhibits a very high corrosion rate, as evidenced by the corrosion potential value of -790.3 mV. Conversely, the freshwater solution demonstrates a lower corrosion rate, with a corrosion potential value of -225.6 mV and a corrosion risk of only around 10%. This research provides a deeper understanding of the impact of solutions on the corrosion rate in reinforced concrete and offers a more scientific and contemporary perspective in line with current developments.","PeriodicalId":414829,"journal":{"name":"JURUTERA - Jurnal Umum Teknik Terapan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134223583","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 : 2023-08-13DOI: 10.55377/jurutera.v10i01.8269
Muhammad Dimas Aditia, Amalia Harmin, R. Syntia, Nasruddin A. Abdullah
Oil, natural gas, and coal are non-renewable fossil energy sources. The limited availability of non-renewable fossil fuels has prompted countries worldwide to develop technologies that harness energy from renewable sources. One of these renewable energy sources is biofuel, which includes bioethanol and biodiesel. Currently, the Co-Pyrolysis method has been widely developed for waste processing. The Co-Pyrolysis method aims to extract energy content from a mixture of raw materials. The varying percentage of raw material mixtures can significantly influence the resulting products. Obtaining the characteristics of raw materials, the differences in temperature distribution graphs for each percentage of the raw material mixture, and achieving optimum product yield are the objectives of the Co-Pyrolysis process. Based on the data from the heating process, it has been found that an excellent product can be obtained from heating a mixture of TKKS (30%) and PS (70%) at 500 °C for 1 hour, resulting in a product yield of 68%.
{"title":"Biofuel Production Through Co-Pyrolysis Process By Utilizing Waste Raw Materials Of Palm Oil and Plastic Waste","authors":"Muhammad Dimas Aditia, Amalia Harmin, R. Syntia, Nasruddin A. Abdullah","doi":"10.55377/jurutera.v10i01.8269","DOIUrl":"https://doi.org/10.55377/jurutera.v10i01.8269","url":null,"abstract":"Oil, natural gas, and coal are non-renewable fossil energy sources. The limited availability of non-renewable fossil fuels has prompted countries worldwide to develop technologies that harness energy from renewable sources. One of these renewable energy sources is biofuel, which includes bioethanol and biodiesel. Currently, the Co-Pyrolysis method has been widely developed for waste processing. The Co-Pyrolysis method aims to extract energy content from a mixture of raw materials. The varying percentage of raw material mixtures can significantly influence the resulting products. Obtaining the characteristics of raw materials, the differences in temperature distribution graphs for each percentage of the raw material mixture, and achieving optimum product yield are the objectives of the Co-Pyrolysis process. Based on the data from the heating process, it has been found that an excellent product can be obtained from heating a mixture of TKKS (30%) and PS (70%) at 500 °C for 1 hour, resulting in a product yield of 68%.","PeriodicalId":414829,"journal":{"name":"JURUTERA - Jurnal Umum Teknik Terapan","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123347825","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 : 2023-07-23DOI: 10.55377/jurutera.v10i01.8270
M. Zulfri, Nazaruddin Abdul Rahman, Andre Mahessa, M. Isra
Machines are tools used to simplify work processes. Within a machine, there are several main components that form the framework for its construction. These components must possess strong qualities in order to perform their functions effectively, one of which is the use of steel. Steel is a commonly utilized material in various sectors, including factories. An example of this can be seen in palm oil mills, where numerous components such as wall pipes, generating pipes, and heat pipes are made from steel. However, steel has a tendency to corrode, which can reduce its strength and shorten the lifespan of steel components. Therefore, it is crucial to calculate the remaining life of each pipe as a preventive measure. The calculation results indicate that the remaining life of the wall pipe is approximately 32 years, while the generating pipe has around 29 years, and the heater pipe has about 11 years of remaining life. In this case, the wall pipe has the longest remaining life, whereas the heater pipe has the shortest due to its continuous exposure to heat. The purpose of this research is to analyze the corrosion rate and remaining life of components made from steel materials, such as wall pipes, generating pipes, and heat pipes, in order to prevent damage caused by corrosion in palm oil mills.
{"title":"Corrosion Rate Analysis and Remaining Life Assessment of Structural Steel in Palm Oil Mill (POM) Environment at Tanjung Seumantoh","authors":"M. Zulfri, Nazaruddin Abdul Rahman, Andre Mahessa, M. Isra","doi":"10.55377/jurutera.v10i01.8270","DOIUrl":"https://doi.org/10.55377/jurutera.v10i01.8270","url":null,"abstract":"Machines are tools used to simplify work processes. Within a machine, there are several main components that form the framework for its construction. These components must possess strong qualities in order to perform their functions effectively, one of which is the use of steel. Steel is a commonly utilized material in various sectors, including factories. An example of this can be seen in palm oil mills, where numerous components such as wall pipes, generating pipes, and heat pipes are made from steel. However, steel has a tendency to corrode, which can reduce its strength and shorten the lifespan of steel components. Therefore, it is crucial to calculate the remaining life of each pipe as a preventive measure. The calculation results indicate that the remaining life of the wall pipe is approximately 32 years, while the generating pipe has around 29 years, and the heater pipe has about 11 years of remaining life. In this case, the wall pipe has the longest remaining life, whereas the heater pipe has the shortest due to its continuous exposure to heat. The purpose of this research is to analyze the corrosion rate and remaining life of components made from steel materials, such as wall pipes, generating pipes, and heat pipes, in order to prevent damage caused by corrosion in palm oil mills.","PeriodicalId":414829,"journal":{"name":"JURUTERA - Jurnal Umum Teknik Terapan","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129655520","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 : 2023-06-30DOI: 10.55377/jurutera.v10i01.7475
Edi Suwandi, Meri Andriani, Heri Irawan
The Handsome Barber is one of the barbershop businesses in Langsa City which was founded by Mr. Musliadi, in 2020 The Handsome Barber was established and had only been running for about 1 year, having its address at Jalan Ahmad Yani. The problems experienced by The Handsome Barber are the ups and downs of the number of customers using The Handsome Barber services every month and the planned targets are not being achieved. The aim of this research is to identify opportunities, threats, strengths, and weaknesses in The Ganteng Barber and create marketing strategies to improve the marketing system. The method used is SWOT and AHP. The results and discussion show that the company's internal and external factors identify strengths, weaknesses, opportunities, and threats with a weighted score of Strengths 0.240, Weaknesses 0.208 Opportunities 0.315, and Threats 0.237. The marketing strategy in improving the marketing system at The Ganteng Barber is the S-O (Strength-Opportunity) Strategy to maintain a quality workforce, the W-O (Weakness-Opportunity) Strategy to maintain quality and good relationships with customers, the S-T (Strength-Threat) Strategy to empower a skilled workforce Experienced and W-T (Weakness-Threat) Strategy Increasing prices must be matched with quality. The conclusion of this study is based on the SWOT analysis Cartesius diagram, The Handsome Barber is in quadrant (I) where the quadrant is a good situation for the company to take advantage of its strengths to exploit existing opportunities.
The Handsome Barber是Langsa City的一家理发店，由Musliadi先生创立，于2020年成立，仅运营了大约1年，地址位于Jalan Ahmad Yani。The Handsome Barber遇到的问题是每月使用The Handsome Barber服务的客户数量起伏不定，计划目标没有实现。本研究的目的是确定机会，威胁，优势和劣势在甘藤理发师和创建营销策略，以改善营销系统。使用的方法是SWOT和AHP。结果和讨论表明，公司的内部和外部因素识别优势，劣势，机会和威胁，加权得分为优势0.240，劣势0.208机会0.315，威胁0.237。在甘腾理发店，改善营销系统的营销策略是S-O(优势-机会)战略，以保持高素质的员工队伍;W-O(劣势-机会)战略，以保持质量和与客户的良好关系;S-T(优势-威胁)战略，以增强有经验的熟练员工的能力;W-T(劣势-威胁)战略，提高价格必须与质量相匹配。本研究的结论是基于SWOT分析卡氏图，英俊的理发师在象限(I)，其中象限是一个很好的情况，公司利用其优势，利用现有的机会。
{"title":"Proposed Marketing Strategy to Increase Service Sales Using the SWOT-Analytic Hierarchy Process Method (Case Study at The Ganteng Barber, Langsa City)","authors":"Edi Suwandi, Meri Andriani, Heri Irawan","doi":"10.55377/jurutera.v10i01.7475","DOIUrl":"https://doi.org/10.55377/jurutera.v10i01.7475","url":null,"abstract":"The Handsome Barber is one of the barbershop businesses in Langsa City which was founded by Mr. Musliadi, in 2020 The Handsome Barber was established and had only been running for about 1 year, having its address at Jalan Ahmad Yani. The problems experienced by The Handsome Barber are the ups and downs of the number of customers using The Handsome Barber services every month and the planned targets are not being achieved. The aim of this research is to identify opportunities, threats, strengths, and weaknesses in The Ganteng Barber and create marketing strategies to improve the marketing system. The method used is SWOT and AHP. The results and discussion show that the company's internal and external factors identify strengths, weaknesses, opportunities, and threats with a weighted score of Strengths 0.240, Weaknesses 0.208 Opportunities 0.315, and Threats 0.237. The marketing strategy in improving the marketing system at The Ganteng Barber is the S-O (Strength-Opportunity) Strategy to maintain a quality workforce, the W-O (Weakness-Opportunity) Strategy to maintain quality and good relationships with customers, the S-T (Strength-Threat) Strategy to empower a skilled workforce Experienced and W-T (Weakness-Threat) Strategy Increasing prices must be matched with quality. The conclusion of this study is based on the SWOT analysis Cartesius diagram, The Handsome Barber is in quadrant (I) where the quadrant is a good situation for the company to take advantage of its strengths to exploit existing opportunities.","PeriodicalId":414829,"journal":{"name":"JURUTERA - Jurnal Umum Teknik Terapan","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134036758","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 : 2023-06-30DOI: 10.55377/jurutera.v10i01.7777
Wiki Sabardi
Consumer demand continues to increase in the food industry, especially snacks, making companies must be able to meet market needs. Companies use various methods to ensure that the quality of their products meets consumer expectations and desires. UD Keripik Mustika is a chip company made from cassava and was founded in 2006. Keripik Mustika faces the problem of optimizing production costs. The purpose of this research is to find the optimal price in the production costs of cassava chips. The method used is Linear Programming. The results obtained in this study after using the POM-QM software were a total production cost of Rp. 252,670,000, the total inventory cost is Rp. 1,200,000, and a total Production Cost of Rp. 253,870,000.
{"title":"APPLICATION OF LINEAR PROGRAMMING TO MINIMIZE PRODUCTION COSTS IN SMALL AND MEDIUM SCALE CASHEW CHIPS ENTERPRISE","authors":"Wiki Sabardi","doi":"10.55377/jurutera.v10i01.7777","DOIUrl":"https://doi.org/10.55377/jurutera.v10i01.7777","url":null,"abstract":"Consumer demand continues to increase in the food industry, especially snacks, making companies must be able to meet market needs. Companies use various methods to ensure that the quality of their products meets consumer expectations and desires. UD Keripik Mustika is a chip company made from cassava and was founded in 2006. Keripik Mustika faces the problem of optimizing production costs. The purpose of this research is to find the optimal price in the production costs of cassava chips. The method used is Linear Programming. The results obtained in this study after using the POM-QM software were a total production cost of Rp. 252,670,000, the total inventory cost is Rp. 1,200,000, and a total Production Cost of Rp. 253,870,000.","PeriodicalId":414829,"journal":{"name":"JURUTERA - Jurnal Umum Teknik Terapan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130540209","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 : 2023-05-28DOI: 10.55377/jurutera.v9i01.7767
Wiki Sabardi
Line balance problems are common in both the assembly and manufacturing industries. This is evidenced by the fact that some workstations have relatively high work congestion, less than Suboptimal line efficiency and non-smooth process flow this research is to: determine the line balancing by making the best path matrix based on the division of workstations. This study uses the Helgeson-Birnie method. This research resulted in design results of line efficiency of 89.16%, idle time of 2683.64, transient delay of 10.84%, smoothness index of 843.88, and 15 workstations. Based on special calculations for changes in the smoothness value, there is a decrease in the smoothness index value from 2041.72 to 843.88.
{"title":"ANALISA MATRIK LINTASAN BERDASARKAN PRECEDENCE DIAGRAM DENGAN MENGGUNAKAN METODE RANKED POSITIONAL WEIGHT","authors":"Wiki Sabardi","doi":"10.55377/jurutera.v9i01.7767","DOIUrl":"https://doi.org/10.55377/jurutera.v9i01.7767","url":null,"abstract":"Line balance problems are common in both the assembly and manufacturing industries. This is evidenced by the fact that some workstations have relatively high work congestion, less than Suboptimal line efficiency and non-smooth process flow this research is to: determine the line balancing by making the best path matrix based on the division of workstations. This study uses the Helgeson-Birnie method. This research resulted in design results of line efficiency of 89.16%, idle time of 2683.64, transient delay of 10.84%, smoothness index of 843.88, and 15 workstations. Based on special calculations for changes in the smoothness value, there is a decrease in the smoothness index value from 2041.72 to 843.88.","PeriodicalId":414829,"journal":{"name":"JURUTERA - Jurnal Umum Teknik Terapan","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129571079","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 : 2022-12-30DOI: 10.55377/jurutera.v9i02.6739
M. Kamal, Taufan Arif Adlie, Nasruddin A. Abdullah, Fazri Amir
Technological growth impacts all aspects of human life, from urban to rural. The increase in technological developments in all fields causes the need for electricity to continue increasing yearly, including in universities. The continuous use of electrical energy derived from fossil fuels has the potential to cause an energy crisis. The solution is to use renewable energy sources, such as solar energy, which is abundant and continuous. Solar energy is the energy obtained directly from solar radiation. It is the cleanest energy source that has been developed so far, making it a solution to solving the energy crisis. One way to utilize solar energy is by using solar cells. This study aims to analyze the use of solar power for electrical energy needed at the parking area of the engineering faculty building at Samudra University so that it can save energy and reduce electricity usage from PLN. The data collection process was carried out by measuring the current strength generated by the solar panels for 10 days. The results show an average voltage of 17.38 volts with 3 lamps loaded for 8 days. While without loading, the highest solar panel voltage results are found on Mondays and Thursdays with a voltage value of 12.7 after being charged, while the lowest solar panel voltage values are found on Sundays and Fridays with a voltage value of 12.3. After analyzing the data, the electricity requirement for a building is 792 KWh.
{"title":"DESIGNING AND TESTING OF SOLAR POWER PLANT FOR PARKING AREA AT ENGINEERING FACULTY UNIVERSITAS SAMUDRA","authors":"M. Kamal, Taufan Arif Adlie, Nasruddin A. Abdullah, Fazri Amir","doi":"10.55377/jurutera.v9i02.6739","DOIUrl":"https://doi.org/10.55377/jurutera.v9i02.6739","url":null,"abstract":"Technological growth impacts all aspects of human life, from urban to rural. The increase in technological developments in all fields causes the need for electricity to continue increasing yearly, including in universities. The continuous use of electrical energy derived from fossil fuels has the potential to cause an energy crisis. The solution is to use renewable energy sources, such as solar energy, which is abundant and continuous. Solar energy is the energy obtained directly from solar radiation. It is the cleanest energy source that has been developed so far, making it a solution to solving the energy crisis. One way to utilize solar energy is by using solar cells. This study aims to analyze the use of solar power for electrical energy needed at the parking area of the engineering faculty building at Samudra University so that it can save energy and reduce electricity usage from PLN. The data collection process was carried out by measuring the current strength generated by the solar panels for 10 days. The results show an average voltage of 17.38 volts with 3 lamps loaded for 8 days. While without loading, the highest solar panel voltage results are found on Mondays and Thursdays with a voltage value of 12.7 after being charged, while the lowest solar panel voltage values are found on Sundays and Fridays with a voltage value of 12.3. After analyzing the data, the electricity requirement for a building is 792 KWh.","PeriodicalId":414829,"journal":{"name":"JURUTERA - Jurnal Umum Teknik Terapan","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127846189","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 : 2022-12-30DOI: 10.55377/jurutera.v9i02.6635
M. Andriani, Ahmad Hidayat
The workload is the difference between the ability of workers with job demands. If the ability of workers is higher than the demands of the job, then boredom will appear, and vice versa. The method used is the NASA TLX method, and the instrument used is the NASA-TLX questionnaire given to 16 respondents. Results and Discussion The average of the six indicators of shift 1 is an indicator of mental needs with an average value of 146.88, an indicator of physical needs with an average value of 237.5, an indicator of time needs with an average value of 140, a performance indicator with a value of an average of 119.38, an indicator of the level of effort with an average value of 247.88, an indicator of the level of frustration with an average value of 82.5. In conclusion, the mental workload level of the production workers for both shifts is included in the high workload category. The dominant indicators for the activities of the first shift workers in the production section are the level of effort indicators, indicators of physical needs, indicators of mental needs, indicators of time requirements, and performance indicators. . The dominant indicators in worker activity in Shift II in the production section are indicators of physical needs, levels of effort, indicators of time requirements, indicators of mental needs, performance indicators, and the last indicator is frustration.
{"title":"ANALYSIS OF MENTAL WORKLOAD USING THE NASA-TLX METHOD FOR PRODUCTION WORKERS AT PT. DOLOMITES PUTERA TAMIANG","authors":"M. Andriani, Ahmad Hidayat","doi":"10.55377/jurutera.v9i02.6635","DOIUrl":"https://doi.org/10.55377/jurutera.v9i02.6635","url":null,"abstract":"The workload is the difference between the ability of workers with job demands. If the ability of workers is higher than the demands of the job, then boredom will appear, and vice versa. The method used is the NASA TLX method, and the instrument used is the NASA-TLX questionnaire given to 16 respondents. Results and Discussion The average of the six indicators of shift 1 is an indicator of mental needs with an average value of 146.88, an indicator of physical needs with an average value of 237.5, an indicator of time needs with an average value of 140, a performance indicator with a value of an average of 119.38, an indicator of the level of effort with an average value of 247.88, an indicator of the level of frustration with an average value of 82.5. In conclusion, the mental workload level of the production workers for both shifts is included in the high workload category. The dominant indicators for the activities of the first shift workers in the production section are the level of effort indicators, indicators of physical needs, indicators of mental needs, indicators of time requirements, and performance indicators. . The dominant indicators in worker activity in Shift II in the production section are indicators of physical needs, levels of effort, indicators of time requirements, indicators of mental needs, performance indicators, and the last indicator is frustration.","PeriodicalId":414829,"journal":{"name":"JURUTERA - Jurnal Umum Teknik Terapan","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132766375","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 : 2022-12-30DOI: 10.55377/jurutera.v9i02.6853
Huda Bagus Rozaq, Muhammad Amin, Teuku Azuar Rizal, Rita Syndia
Along with the development of technology, the need for fossil energy for cooking purposes using conventional stoves is increasing. The limitations of fossil energy reserves that cannot be renewed have resulted in an energy crisis starting to hit. Solar energy is an energy source that is environmentally friendly and available free of charge. Solar energy is utilized using the system. Concentrating solar power (CSP) focuses solar radiation to a point to get a higher temperature. This type of box-type solar cooker has a long history dating back to the 18th century when Nicholas-de-Saussure first made this type of solar cooker. A parabolic solar cooker is a solar-powered stove that uses reflections from the sun's radiation which is concentrated directly on the pan. A trough solar cooker collects sunlight and reflects it to a focal point using a reflective film. A box-type solar cooker has an important part between the reflectors which use aluminum foil with a diameter of 41 cm and a thickness of 0.2 mm. The collector was made of brass copper for cooking with a diameter of 41 cm and a thickness of 0.2 mm. The parabolic type of solar cooker has important parts, including a collector that uses a parabola with a diameter of 140 cm and a depth of 40 cm and a reflector that uses a reflective film with an emissivity value of 0.91. The trough-type solar cooker performs better than the box and parabola types because it has a higher temperature where the ambient temperature is 25.5 ℃, the focal point temperature is 164℃, and the load temperature is 163℃.
{"title":"SOLAR STOVES AS AN ALTERNATIVE SOLUTION FOR THE USE OF RENEWABLE ENERGY IN INDONESIA","authors":"Huda Bagus Rozaq, Muhammad Amin, Teuku Azuar Rizal, Rita Syndia","doi":"10.55377/jurutera.v9i02.6853","DOIUrl":"https://doi.org/10.55377/jurutera.v9i02.6853","url":null,"abstract":"Along with the development of technology, the need for fossil energy for cooking purposes using conventional stoves is increasing. The limitations of fossil energy reserves that cannot be renewed have resulted in an energy crisis starting to hit. Solar energy is an energy source that is environmentally friendly and available free of charge. Solar energy is utilized using the system. Concentrating solar power (CSP) focuses solar radiation to a point to get a higher temperature. This type of box-type solar cooker has a long history dating back to the 18th century when Nicholas-de-Saussure first made this type of solar cooker. A parabolic solar cooker is a solar-powered stove that uses reflections from the sun's radiation which is concentrated directly on the pan. A trough solar cooker collects sunlight and reflects it to a focal point using a reflective film. A box-type solar cooker has an important part between the reflectors which use aluminum foil with a diameter of 41 cm and a thickness of 0.2 mm. The collector was made of brass copper for cooking with a diameter of 41 cm and a thickness of 0.2 mm. The parabolic type of solar cooker has important parts, including a collector that uses a parabola with a diameter of 140 cm and a depth of 40 cm and a reflector that uses a reflective film with an emissivity value of 0.91. The trough-type solar cooker performs better than the box and parabola types because it has a higher temperature where the ambient temperature is 25.5 ℃, the focal point temperature is 164℃, and the load temperature is 163℃.","PeriodicalId":414829,"journal":{"name":"JURUTERA - Jurnal Umum Teknik Terapan","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116738951","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 : 2022-12-30DOI: 10.55377/jurutera.v9i02.6643
Ceni Febi Kurnia Sari, Supardi
Study is learning scientific study. A Pareto chart is a diagram consisting of a bar graph and a line graph that illustrates a comparison of each type of problem data with its overall causes. Gross Regional Domestic Product (PDRB) is the total gross added value arising from all economic sectors in a particular area. Which is usually a Pareto Diagram made to describe the PDRB of a particular area which aims to help make regional policies or planning, evaluate development results, provide information that can describe the regional economic performance. In terms of the topic of this pareto diagram study, the author takes the exposure of rock mining in Manokwari Regency. The mining of these rocks is a source of income in the Manokwari Regency area which can support the economy in the Manokwari Regency area. Where mining activity or mining activity is a process or activity of taking material that can be extracted from the earth to the utilization of minerals, both for the benefit of the company, the surrounding community, as well as local and central government.
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