Andalasian International Journal of Applied Science, Engineering, and Technology
The Andalasian International Journal of Applied Science, Engineering, and Technology (AIJASET) is an international journal dedicated to the improvement and dissemination of knowledge on applied science, engineering and technologies including energy, environment, industrial, agriculture, civil, transportation, Information and communication and other related sciences and engineering. AIJASET follows new trends and advanced technology for practical applications of appropriate technology.
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<![CDATA[Spatial Distribution of Rice Planting Calendar in West Sumatra Province Based on MODIS Image Data ]]>
<![CDATA[Ekaputra, Eri Gas]]>;
<![CDATA[Yanti, Delvi]]>;
<![CDATA[Irsyad, Fadly]]>;
<![CDATA[Setyanto, Eri]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
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DOI: 10.25077/aijaset.v2i1.28
<![CDATA[Each region has its own cropping pattern due to its particular characteristics. Crop production may be increased by adjusting the timing of planting. Remote sensing technologies can be used to monitor regions where planting occurs simultaneously. The purpose of this study is to assess the degree of uniformity at the beginning of the paddy cultivation season in West Sumatra. In each growing season, there are two early cultivation seasons in the West Sumatra province. 19% of the region started cultivation in the first period of the first cultivation season (CS1), and 81% in the second period. 4.2% of the region started cultivation in the first period of the second cultivation season (CS2), while 95.8% started planting in the second period. 35% of the region started planting in the first period of the third cultivation season (CS3), while 65% started planting in the second period. The level of uniformity at the beginning of the second cultivation season was higher than at the beginning of the first cultivation season]]>
<![CDATA[Optimization Pressure of Water Distribution Network System of the Banjarsari Water Treatment Plant, PDAM Bojonegoro ]]>
<![CDATA[Utama, Teguh Taruna]]>;
<![CDATA[Zumrotin, Amelia]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
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DOI: 10.25077/aijaset.v2i1.31
<![CDATA[The distribution network of the Banjarsari water treatment plant uses a gravity system. The system serves the drinking water in Banjarsari Villages. This study aims to optimize the pressure of the water distribution network in the Banjarsari Villages. This system supplies water from the Banjarsari water treatment plant. The water distribution network uses the gravity method to deliver water to customers. The drinking water distribution network was obtained from PDAM Bojonegoro. Meanwhile, the elevation and node of pipe were obtained by using Google Earth. Before optimization, the water distribution network has negative pressure at 07.00 AM and 05.00 PM. The negative pressure zone is at the end of the distribution network. The negative pressure values obtained using EPANET is range from -0,67 meters to -6,34 meters. The water distribution network is optimized by replacing diameter pipe in some areas, the water pressure increases significantly and makes the water distribution has positive pressure values. The pressure values are range from 2,70 meters to 13,65 meters. Replacing diameters of pipe is a solution to remove negative pressure, so that water from the reservoir can deliver to the end of a pipe. The distribution network pipe diameter is chosen which is close to the calculated pipe diameter.]]>
<![CDATA[Analysis of The Effect of Bank Capacitor Placement as Voltage Drop Increase in Distribution Network ]]>
<![CDATA[Rofandy, Muhammad Yudha]]>;
<![CDATA[Hasibuan, Arnawan]]>;
<![CDATA[Rosdiana, Rosdiana]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
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DOI: 10.25077/aijaset.v2i1.32
<![CDATA[The quality of electricity distribution in the distribution network is an important thing that must be considered. To maintain the quality of electrical energy, there are several parameters that must be considered in the distribution network, including voltage drop, power losses, power factor and other factors. One of the solutions used to improve the voltage drop and power factor is to install a capacitor bank in the distribution network. This paper will discuss the placement of capacitor banks using the fuzzy logic method with inputs in the form of voltage profiles, power losses and power flow calculations using ETAP 12.6.0 software. In the Rao feeder, the final voltage is 16.806 kV or has passed the standard set by PLN (-10% and +5%). The Rao feeder has a power loss of 0.242 MW and a power factor of 0.7815. Fuzzy logic method is used to determine the optimal location of capacitor placement. After the installation of the capacitor bank, the terminal voltage increases and the total power loss decreases, while the power factor increases. From the results obtained, PLN as a supplier of electrical energy can reduce power losses by placing and installing capacitor banks in the distribution network.]]>
<![CDATA[Effects of a Longitudinal Crack in Overhung Rotor ]]>
<![CDATA[Malta, Jhon]]>;
<![CDATA[Bur, Mulyadi]]>;
<![CDATA[Fadillah, Muhammad Rahmanda]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
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DOI: 10.25077/aijaset.v2i1.33
<![CDATA[In this study, a longitudinal crack simulation will be carried out on the shaft using the MSC Nastran/Patran to identify the effect of variations in the depth and length of the crack on the shaft on the stress distribution along the shaft and to determine the dynamic behavior of the rotor shaft overhung system due to cracks. The simulation was carried out with two models, with and without a crack. The first crack position locates between the disk and the bearing, and the second is between the two supports. Based on the simulation test results, the natural frequencies tend to decrease with increasing variations in the depth and length of the crack, especially at first and second natural frequencies. The cracks between the disc and the bearing significantly reduce stiffness than the cracks between the two supports. Furthermore, in the stress analysis, the cracks increase the rotor's maximum stress, which occurs in the area of the ultimate bending moment.]]>
<![CDATA[The Technology Improvement of Physical Properties of KUB Chicken Meat Include Papaya Leaves (Carica papaya L) in Feed ]]>
<![CDATA[Nova, Tertia Delia]]>;
<![CDATA[Sabrina, Sabrina]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
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DOI: 10.25077/aijaset.v2i1.26
<![CDATA[This study aims to determine the Technology improvement of physical properties of KUB chicken meat including Papaya Leaves (Carica papaya L) in feed. This study used 100 KUB chickens placed in 20 boxes of cages, each box containing 5 KUB chickens, using papaya leaf flour at the age of 3 weeks. The method used in this experimental study was a completely randomized design (CRD) with 5 treatments and 4 replications consisting of treatment A (feed with 0% papaya leaf flour), treatment B (feed with 2.5% papaya leaf flour), treatment with C (feed with 5% papaya leaf powder), treatment D (feed with 7.5% papaya leaf powder) and treatment E (feed with 10% papaya leaf powder). The parameters observed were meat pH, cooking loss, meat tenderness and water holding capacity. The results showed that giving papaya leaf flour up to 10% had no significant effect (P>0.05) on meat pH and cooking loss, but had a very significant effect on (P<0.01) KUB chicken meat tenderness. The conclusion of this study is that giving 2.5% papaya leaf flour has an effect on the tenderness of KUB meat.]]>
<![CDATA[The Technology Improvement of Physical Properties of KUB Chicken Meat Include Papaya Leaves (Carica papaya L) in Feed ]]>
<![CDATA[Nova, Tertia Delia]]>;
<![CDATA[Sabrina, Sabrina]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
Show Abstract
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DOI: 10.25077/aijaset.v2i1.26
<![CDATA[This study aims to determine the Technology improvement of physical properties of KUB chicken meat including Papaya Leaves (Carica papaya L) in feed. This study used 100 KUB chickens placed in 20 boxes of cages, each box containing 5 KUB chickens, using papaya leaf flour at the age of 3 weeks. The method used in this experimental study was a completely randomized design (CRD) with 5 treatments and 4 replications consisting of treatment A (feed with 0% papaya leaf flour), treatment B (feed with 2.5% papaya leaf flour), treatment with C (feed with 5% papaya leaf powder), treatment D (feed with 7.5% papaya leaf powder) and treatment E (feed with 10% papaya leaf powder). The parameters observed were meat pH, cooking loss, meat tenderness and water holding capacity. The results showed that giving papaya leaf flour up to 10% had no significant effect (P>0.05) on meat pH and cooking loss, but had a very significant effect on (P<0.01) KUB chicken meat tenderness. The conclusion of this study is that giving 2.5% papaya leaf flour has an effect on the tenderness of KUB meat.]]>
<![CDATA[Spatial Distribution of Rice Planting Calendar in West Sumatra Province Based on MODIS Image Data ]]>
<![CDATA[Ekaputra, Eri Gas]]>;
<![CDATA[Yanti, Delvi]]>;
<![CDATA[Irsyad, Fadly]]>;
<![CDATA[Setyanto, Eri]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
Show Abstract
|
Download Original
|
Original Source
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Check in Google Scholar
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DOI: 10.25077/aijaset.v2i1.28
<![CDATA[Each region has its own cropping pattern due to its particular characteristics. Crop production may be increased by adjusting the timing of planting. Remote sensing technologies can be used to monitor regions where planting occurs simultaneously. The purpose of this study is to assess the degree of uniformity at the beginning of the paddy cultivation season in West Sumatra. In each growing season, there are two early cultivation seasons in the West Sumatra province. 19% of the region started cultivation in the first period of the first cultivation season (CS1), and 81% in the second period. 4.2% of the region started cultivation in the first period of the second cultivation season (CS2), while 95.8% started planting in the second period. 35% of the region started planting in the first period of the third cultivation season (CS3), while 65% started planting in the second period. The level of uniformity at the beginning of the second cultivation season was higher than at the beginning of the first cultivation season]]>
<![CDATA[Optimization Pressure of Water Distribution Network System of the Banjarsari Water Treatment Plant, PDAM Bojonegoro ]]>
<![CDATA[Utama, Teguh Taruna]]>;
<![CDATA[Zumrotin, Amelia]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
Show Abstract
|
Download Original
|
Original Source
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Check in Google Scholar
|
DOI: 10.25077/aijaset.v2i1.31
<![CDATA[The distribution network of the Banjarsari water treatment plant uses a gravity system. The system serves the drinking water in Banjarsari Villages. This study aims to optimize the pressure of the water distribution network in the Banjarsari Villages. This system supplies water from the Banjarsari water treatment plant. The water distribution network uses the gravity method to deliver water to customers. The drinking water distribution network was obtained from PDAM Bojonegoro. Meanwhile, the elevation and node of pipe were obtained by using Google Earth. Before optimization, the water distribution network has negative pressure at 07.00 AM and 05.00 PM. The negative pressure zone is at the end of the distribution network. The negative pressure values obtained using EPANET is range from -0,67 meters to -6,34 meters. The water distribution network is optimized by replacing diameter pipe in some areas, the water pressure increases significantly and makes the water distribution has positive pressure values. The pressure values are range from 2,70 meters to 13,65 meters. Replacing diameters of pipe is a solution to remove negative pressure, so that water from the reservoir can deliver to the end of a pipe. The distribution network pipe diameter is chosen which is close to the calculated pipe diameter.]]>
<![CDATA[Analysis of The Effect of Bank Capacitor Placement as Voltage Drop Increase in Distribution Network ]]>
<![CDATA[Rofandy, Muhammad Yudha]]>;
<![CDATA[Hasibuan, Arnawan]]>;
<![CDATA[Rosdiana, Rosdiana]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.25077/aijaset.v2i1.32
<![CDATA[The quality of electricity distribution in the distribution network is an important thing that must be considered. To maintain the quality of electrical energy, there are several parameters that must be considered in the distribution network, including voltage drop, power losses, power factor and other factors. One of the solutions used to improve the voltage drop and power factor is to install a capacitor bank in the distribution network. This paper will discuss the placement of capacitor banks using the fuzzy logic method with inputs in the form of voltage profiles, power losses and power flow calculations using ETAP 12.6.0 software. In the Rao feeder, the final voltage is 16.806 kV or has passed the standard set by PLN (-10% and +5%). The Rao feeder has a power loss of 0.242 MW and a power factor of 0.7815. Fuzzy logic method is used to determine the optimal location of capacitor placement. After the installation of the capacitor bank, the terminal voltage increases and the total power loss decreases, while the power factor increases. From the results obtained, PLN as a supplier of electrical energy can reduce power losses by placing and installing capacitor banks in the distribution network.]]>
<![CDATA[Effects of a Longitudinal Crack in Overhung Rotor ]]>
<![CDATA[Malta, Jhon]]>;
<![CDATA[Bur, Mulyadi]]>;
<![CDATA[Fadillah, Muhammad Rahmanda]]>
<![CDATA[ Andalasian International Journal of Applied Science, Engineering and Technology Vol. 2 No. 1 (2022): March 2022 ]]>
Publisher : <![CDATA[LPPM Universitas Andalas ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.25077/aijaset.v2i1.33
<![CDATA[In this study, a longitudinal crack simulation will be carried out on the shaft using the MSC Nastran/Patran to identify the effect of variations in the depth and length of the crack on the shaft on the stress distribution along the shaft and to determine the dynamic behavior of the rotor shaft overhung system due to cracks. The simulation was carried out with two models, with and without a crack. The first crack position locates between the disk and the bearing, and the second is between the two supports. Based on the simulation test results, the natural frequencies tend to decrease with increasing variations in the depth and length of the crack, especially at first and second natural frequencies. The cracks between the disc and the bearing significantly reduce stiffness than the cracks between the two supports. Furthermore, in the stress analysis, the cracks increase the rotor's maximum stress, which occurs in the area of the ultimate bending moment.]]>
