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Andy Eka Saputra
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Kampus Politeknik Negeri Lampung Jalan Soekarn Hatta No. 10 Raja Basa Bandar Lampung
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INDONESIA
TEKTAN
Published by Politeknik Negeri Lampung
ISSN : 20851278     EISSN : 27453472     DOI : https://doi.org/10.25181/tektan
Core Subject : Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Mechanical Engineering
Jurnal Tektan merupakan salah satu jurnal di Politeknik Negeri Lampung yang  menampung hasil penelitian berupa artikel ilmiah yang berkaitan dengan Ilmu Keteknikan Pertanian, Mekanisasi Pertanian, Teknik Kimia, Teknik Sumberdaya Lahan dan Lingkungan,dimana artikel tersebut belum pernah dipublikasikan. Jurnal TekTan di terbitkan oleh Unit Penelitian dan Pengabdian Kepada Masyarakat Polinela Unit 3x dalam setahun. Jurnal Ilmiah Teknik Pertanian Ini diterbitkan oleh Unit Penelitian dan Pengabdian Kepada Masyarakat Polinela Sebagai Wadah Bagi Dosen, Mahasiswa dan PLP untuk mempublikasikan karya penulisannya. Jurnal ini sempat mengalami Jeda Pengaktifan Selama 3 tahun mulai terbitan 2016 sampai Agustus 2019, hal ini disebabkan karena kekosongan tim pengelola Jurnal. Kemudian dengan manajemen pengelolaan yang baru maka diterbitkan kembali untuk volume 11 No. 3 pada tanggal 16 Desember 2019
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 80 Documents
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Rancang Bangun Alat Tanam Benih Kangkung Darat (Ipomoea Raptana Poir) Nasichin Nasichin; Fajarsukoco Fajarsukoco; Duta Satria; Yose Sebastian; Meinilwita Yulia
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 12 No 2 (2020)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v12i2.1914

Abstract

Kale spinach is a type of vegetable that is widely consumed by people in Indonesia. It’s contains protein, carbohydrates, calcium, iron, sodium, phosphorus, fiber, vitamins A and C. The kale spinach is a low-calorie vegetable. The purpose of this research is to design kale spinach seed planting tool with a semi-mechanical system which power comes from human power, this tool is operated by pulling a lever on the tool so that the tool can work. After the manufacture of kale seed planting is complete, the authors test the performance of the tool capacity, and from the results of the performance test of this tool it can be concluded that it can work well. The results of the performance test of the capacity of this tool to plant water spinach seeds with an area of 0.0005 ha takes 0.007 hours with an average speed of 0.2 m/s, the average seeds that fall per hole are 3 seeds, 98.6% efficiency, The theoretical capacity is 0.072 ha/hour, the effective capacity is 0.071 ha/hour, the percentage of growth is 95%, the average distance between plants is 10 cm, and the average distance between rows of plants is 10 cm.
Prediksi Pengoperasian Traktor di Lahan Kering Menggunakan Artificial Neural Network Taufik Nugraha Agassi; Yose Sebastian; Zainal Arifin
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 12 No 3 (2020)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v12i3.1932

Abstract

Soil water content is an important parameter in making a decision to use a tractor or not. The process of measuring soil water content and levels of field capacity in conventional which takes a long time and cannot be used in real-time to measure it is a major problem in the field. Determinants of soil water content such as ambient temperature, humidity, and rainfall can be obtained easily and quickly either by using a tool or retrieving data from the nearest BMKG station. The objective of this research is to obtain the most optimal prediction model in making decisions about tractor operation in dry land. This research uses an Artificial Neural Network (ANN) in modeling predictions of tractor operation. Prediction of tractor operation is a prediction of tractor use on a certain day using input data obtained before the day of tractor use. ANN modeling uses the back-propagation supervised learning method. The best ANN model used four hidden neurons with a learning coefficient of 0.2, a momentum of 0.8 and 20,000 iterations. This model has been able to provide optimal predictions with an accuracy value of 77%. The ANN model has been successful in predicting tractor operation on dry land using the back-propagation supervised learning method.
Deteksi Zona Rawan Tsunami Pesisir Kota Bandar Lampung Menggunakan Data Geospasial Berbasis Sistem Informasi Geografis Iskandar Zulkarnain; I gde Darmaputra; Aniessa Rinny Asnaning
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 12 No 3 (2020)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v12i3.1933

Abstract

The Bandar Lampung coastal area naturally has the potential of a tsunami hazard. Historically the coastal area of Bandar Lampung City had been hit by a tsunami with a height of 10-30 meters in 1883 when the eruption of Mount Krakatau occurred. The partial collapse of Mount Krakatau, which occurred at the end of 2018, also had a tidal wave impact as high as 1-2 meters in the Bandar Lampung coastal area. This study aims to produce Thematic Maps of Tsunami Hazard Zones in the Coastal Areas of Bandar Lampung City as a source of information for the community and stakeholders. The method used is spatial analysis with GIS through the overlay method. The result shown that eight sub district in Bandar Lampung City are prone to tsunami hazards with risk categories up to very high risk categories.
Modifikasi Mesin Peniris Minyak Sistem Spinner Harmen harmen; Imam Sofi'i; Ridwan Baharta
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 12 No 3 (2020)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v12i3.1934

Abstract

The process of draining oil is one of the processes that can affect the oil content of the frying or chips. The oil that is left in a lot of fried food or chips when stored for a long time will cause a rancid smell. Meanwhile, if consumed directly, it will affect the health of consumers because of high cholesterol levels. Most people do not know the consequences that occur if they consume excess oil. People who already know cannot do anything because the oil draining machines on the market are still quite expensive and their working capacity is limited. In the previous research, a draining machine with a tube system with a diameter of 40 cm and a height of 22.2 cm was made with an rpm of 517. Within 5 minutes this system reduce oil content from 27% to 24,65% . The data shown in strightline gaphic trend that mean the reduction oil conten is not optimal yet . For this reason, this research will be redesigned by extending the spinner axis and adding the bearings to 2 units, it is hoped that this addition will stabilize the spinner rotation, the rotation can be increased and the ability to reduce oil content increases. extending the drain axis and increasing the position of the bearing to 2, the draining machine has been able to function properly until 967 rpm rotation, from the test results for draining the cassava chip oil, within 5 minutes, the slicer with a rotation of 598 rpm can reduce 2.29%, 727 rpm 2.93%, and 967 rpm 4.27% rotation.
Kontrol Suhu Otomatis Oven Vulkanisasi Konvensional di Laboratorium Unit Produksi Serabut Kelapa Berkaret Nurjan Didik Purwanto; Puji Wiyono; Andika Wahyu Pratama
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 12 No 3 (2020)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v12i3.1935

Abstract

The vulcanization process is a chemical reaction between rubber and sulfur to form cross-links and produce a three-dimensional structure. Temperature control in the vulcanization process is important to support the quality of the goods produced. In the coconut coir rubber production unit laboratory, the vulcanization oven is still conventional and manual for temperature control, therefore an operator is required to be on standby when the vulcanization oven is operated. The negligence of the operator will be fatal both in terms of the quality of the rubberised coir produced and the risk of fire. One of the causes of frequent fires in vulcanization ovens is the difficulty in setting the temperature in the oven process. To anticipate the occurrence of fires in the vulcanization oven, it is necessary to modify and add a temperature control to the oven. Based on the above problems, modifications need to be made which include the addition of a temperature control system and fire protection that combines temperature control, electric motor, fan, and indicator sirens in rubberized coconut fiber ovens so that the quality of the products produced remains good and avoids fire hazards. With this system, it is hoped that it can provide a sense of security and comfort for operators and contribute to the world of education, especially for students of the Agricultural Mechanization Study Program and other study programs at Lampung State Polytechnic. Automatic Temperature Control of Conventional Vulcanization Ovens in the Rubber Coir Production Unit Laboratory
Rancang Bangun Mesin Pemipil dan Penghancur Tongkol Jagung Agil Renaldy; Edy Prabowo; Indra Kusuma; Winarto Winarto
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 12 No 3 (2020)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v12i3.1936

Abstract

Corn is one of the important plants for human life, especially in Indonesia. This is because corn is the second food crop commodity after rice. In Indonesia, there are still many post-harvest maize product processing using the traditional method by peeling corn by hand, so that the yield of corn production is not comparable with the labor for processing the corn harvest. Agricultural statistics show that maize production in Indonesia has always increased from year to year. In order to better support the conversion process of corn cobs waste into animal feed, a chopper is needed. The machine functions to chop the corn cobs so that they are easier for livestock to consume as well as accelerate the work of bacteria during the fermentation process. If the two processes are carried out on separate machines, it will take a long time to complete. This study aims to make a machine that combines a corn sheller machine with a corn cobs crusher. The results of testing the corncob crusher and shelling machine gave 10 kg/hour shelling capacity, 13% unshipped corn, 68.9% corn shelling yield, 15 kg/hour corn cobs crushing machine capacity, 85.28% yield of corn cobs crushing.
A Pemanfaatan Air Sumur Bor Dangkal Dengan Sistem Irigasi Alur Untuk Padi Gogo di Lahan Tegalan Pada Musim Kemarau I gde Darmaputra
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 13 No 1 (2021): Jurnal Ilmiah Teknik Pertanian
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Effort of expansion and increasing of planting intensity of upland rice in Lampung Province can be done by adding irrigation. The source of irrigation water can come from the shallow well using furrow irrigation technology. What is the furrow distance that results high water use efficiency and optimal water productivity for upland rice? This study aims: 1) to measure the amount of upland rice irrigation water usage at various furrow distances, 2) to measure plant growth and 3) determine the optimal distance of furrow irrigation. The experiment was arranged in a randomized block design with the furrow distances treatment at three levels: 60, 80, and 120 cm. Each treatment was repeated three times. The variables observed were soil moisture, the amount of irrigation water use and plant growth. Analysis of data using ANOVA at a significant difference test level of 5%. The results showed that the different furrow distance had no significant effect on the growth of upland rice. This can be caused by the soil moisture in the root zone was still in the range of readily available water, i.e. 26.9-39.4% before giving irrigation. The mean plant height at 70 days after planting in the treatment of furrow distances 60, 80 and 120 cm were 107.1, 104.1, and 106.9 cm respectively, but significantly different from the control (without irrigation) was only 86.4 cm. The number of upland rice tillers at 70 days after planting in the all treatments and control was not significantly different, i.e. in the range 20.5-25.3 stems per clump. The average irrigation water used up to 70 days after planting at the furrow distance 60, 80, and 120 cm were 733, 735, and 490 mm respectively.
A Rancangbangun Mesin Polisher Beras Skala Laboratorium Winarto Winarto
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 13 No 1 (2021): Jurnal Ilmiah Teknik Pertanian
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Rice is a plant that is rich in benefits, almost all parts of the rice plant can be used for human and animal needs, this is because in rice plants there are good carbohydrates, energy, nutrition, sugar, food fiber, fat, protein. For humans and animals, of course, it requires several previous processes so that they can be processed into various products. It takes a machine that can polish or whiten the broken rice husks between the rice bran and the bran separately so that it can be processed into the next process. The objectives of this research are to design the polisher engine build, and to test the polisher engine performance. Literature study, machine design, selection of materials and tools to be used, machine manufacturing and assembly, and machine testing are a series of processes for making this machine. The process of polishing cracked rice with a weight of 2.5 kilograms with an average operating speed of 0.1165 hours, an average of 1.23 kg (49%) of cracked rice polishing, an average weight of 0.59 kg of manure and an average yield of 54% average.
Upaya Penghematan Air Irigasi dan Peningkatan Produksi Padi Sawah Melalui Penerapan Irigasi Terputus-putus (Intermittent Irrigation) Muhammad Idrus
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 13 No 1 (2021): Jurnal Ilmiah Teknik Pertanian
Publisher : Jurusan Teknologi Pertanian

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Abstract

The research was conducted in rainfed rice field at Cisarua Village, Natar Sub District, Lampung Selatan Region to find out intermittent irrigation methode which efficient in using water and high yield. The experimental design was using completely randomized design (CRD) with four irrigation treatments and replicated thrice. The treatments consist of intermittent irrigation with soil hair-crack indicator (II1), intermittent irrigation with water in the perforated PVC pipe fell 10 cm below ground level (II2), intermittent irrigation with irigation interval 2 days indicator (II3), and control. Preparation of seedling for the intermittent irrigation treatment using nursery plate, but for controll teratment using rice field. The treatment the intermittent irigation were using transplanting of 1 young seedling (10 days after seeding) at wider space 25 cm x 25 cm, and for the control treatment transplanting of 3-5 old seedling (20 days after seeding) at the same space. The research result showed that the highest total amount of water irrigation aplication was happened on intermittent irrigation with 2 days irrigation interval indicator of 717 mm, in the same as with control treatment, but the lowest total amount of water irrigation application was happened in the intermittent irrigation with soil hair-crack indicator of 460 mm or only amount 64,16% of control treatment. In this case showed that intermittent irrigation with soil crack-hair indicator can save amout of water irrigation application of 35,84%. Grain yield of rice on the treatment of intermittent irrigation with soil hair-crack indicator and irrigation interval 2 days indicator not significantly different but signifcantly different and higher compare to intermittent irrigation with water level in the perporated PVC pipe fell 10 cm below ground level and the control trentmen. The average grain yield of rice on intermittent irrigation with soil hair-crack indicator 8,783 kg/ha with highest irrigation water productivity of 1,91 kg/m3, but on the control treatment only 6,528,08 kg/ha with lowest irrigation water productivity of 0,91 kg/m3.
Rancangbangun Mesin Pemarut Gaplek Basah dengan Mekanisme Dua Silinder Pemarut Winarto Winarto
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 13 No 1 (2021): Jurnal Ilmiah Teknik Pertanian
Publisher : Jurusan Teknologi Pertanian

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Abstract

Tiwul is a staple food substitute for rice which is popular in the community. There are two types of cassava processing into tiwul, namely dry cassava and wet cassava. In general, there are two types of cassava processing into tiwul, namely manual and semi-mechanical, the manual method uses a mortar or pounder, while the semi-mechanical method uses a coconut grater machine. The disadvantage of both methods is that users have to stack and push cassava manually. To overcome this, a grating device is needed that can work without being pushed by the user. The objectives of this research are to design and test the performancy of wet cassava grater using a two-cylinder mechanism. The work procedures used are machine design, machine component manufacturing, component assembly, and machine testing. The wet cassava grater machine with a two-cylinder mechanism has been successfully designed and functioning properly. The rotation of the main shaft cylinder is 1092.67 rpm, slip on the main shaft cylinder is 1.26%, the yield is 82.66%, the engine working capacity is 109.94 kg/hour, and the operating cost is IDR 9.55/kg.

Page 8 of 8 | Total Record : 80

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