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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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Pembuatan Peta Tingkat Bahaya Erosi Daerah Pengaliran Sungai Way Sulan Lampung Selatan Roslina Jayanti; Suprapto Suprapto
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 5 No 2 (2013)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v5i2.896

Abstract

Erosion potential map (TBE) is a thematic map that can be used for various purposes, especially with regard to the management of land resources. As long as the map is not yet available Erosion potential Way Sulan Watershed  South Lampung regency in digital form that is created using ArcGIS 9.3. Creating maps Erosion potential is intended to provide information about the Regional Erosion potential At River Way Sulan. The Digital Map is created by a projection coordinate transformation step Maps South Lampung District , Land Cover Map, Map Conditions Slope, and map making rain erosivity index, then specify limits Watershed Way Sulan based network of rivers and topography. The next step overlaying of 4 (four) of the map and perform value calculation Erosion potential and Erosion Hazard Class. Overlay Map of R, K, LS and CP resulted in a Land Unit Map with land unit number 1 to 232 with  erosion hazard classes different. Keywords: erosion potential map, erosion hazard class, ArcGIS 9.3
Penggunaan Hidrolik Model Fisik Redesain Bendung Simongan Niko Suhendra; Didik Kuswadi; Kelik Istanto
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 5 No 2 (2013)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v5i2.897

Abstract

Test model can provide a lot of possibilities of handling hydraulic problem as input for changes or improvements to the waterworks construction will be implemented. Therefore, physical modeling weir is the right step to knowing how to learn and cope with floods, good damage posed and a solution be handled. The purpose of this study was (1) Determine scale models and standard on many discharge meter prototype and (2) Perform the calibration test physical models contain. Implementation stages of this research started from the collection of data, software installation support, determination of scale models, model physical weir, the determination of the standard meter, test calibration model. Based on the results and discussion that have been described, it can be concluded with respect to the following: (1) Calculation of scale models produce mass-scale as follows: speed scale as large as 6,324; a 2.5 scale flow profile; and large scale Thomson 10119.289; (2) the completion of the process Curb Simongan done through physical modeling in the form of three-dimensional dam of five stages, namely Series 0, Series 1, Series 2, Series 3 and Series 4;(3) Calculation based on the Thomson High Level Discharge Meter  (m3/sec) prototype 200,500 m3/sec, m3/sec 700, and 850 consecutive m3/sec size of 37,445 cm, 45.522 cm, 49.314 cm and 51.746 cm; (4) The results of calibration test physical models of flow rate on debit Series 4 83 993 lt/sec indicates that the downstream flow velocity decreased after making 3 buildings that have elevation +3 m to the left and right downstream weir, elevation +4 m the middle of the downstream weir. Keywords: physical hidraulic model; redesign, weir simongan 
Sistem Irigasi Curah Otomatis Berbasis PLC (Programmable Logic Controller) Agus Setiawan; Gagas Dwi Lingga; Wisnu Nofiyanto; Harmen Harmen
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 5 No 2 (2013)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v5i2.898

Abstract

The objectives of this research were designed an automatic sprinkler system wake-based PLC (Programmable Logic Controller) and tested its performance. The method created/designed a sprinkler system using a pump spray gun nozzle which the pump work automatically controlled using a PLC (Programmable Logic Controller) (programmed according to the desired watering time (06:00 to 09:00 and 15:00 to 18:00)) and the system will OFF when the current effective watering daily rainfall exceeds a predetermined threshold. As for the sensor to be able to turn off the pump working as a conductor used 2 pieces detection limit of the daily effective rainfall that is placed on a measuring cup in ombrometer. Results of sprinkler irrigation system design of PLC-based automated bulk may work in settings, bulk irrigation system working width of 5.5 m, and the test results is relatively uniform water distribution. Keywords: sprinklers, automatic, PLC
Deteksi Akuifer Air Tanah Menggunakan Metode Geolistrik (Studi Kasus di Politeknik Negeri Lampung) Didik Kuswadi
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 11 No 3 (2019)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v11i3.1465

Abstract

In fact, the interpretation of groundwater potential is not as easy as it is predicted, even often quite difficult and requires elaborate equipment. This remembers the formation and movement of groundwater in nature, so that measurements cannot be carried out directly. Interpretation of groundwater potential will always include two main objectives, namely: (1) soils or rocks as a medium where groundwater is acquired, and (2) groundwater as a liquid that fills the cavity in the soil or rocks. Some ground level investigation methods that can be done, including: Geological method, Gravity method, Magnetic field method, seismic method, and Geoelectric method. From these methods, the Geoelectric method is a very widely used method and the result is quite good. These geoelectric estimates are intended to obtain an overview of the subsurface of the soil and the possibility of groundwater and minerals at a certain depth. These geoelectric estimates are based on the fact that different materials will have different types of prisoners when they are electrically flowing. Groundwater has a lower type of prisoner than mineral rocks. The objectives of the study are: (1) Identifying soil layer formations and precise drilling depth at points of observation, (2) creating a map of groundwater layer depth distribution (groundwater contour). The stages of this study, namely: (1) equipment preparation, (2) The conjectives of the type of prisoner geoelectric with Schlumberger configuration, (3) The collection of field data, (4) Analysis and interpretation of field  data. Based on the results of analysis and discussion, can be concluded several things, namely: (i) water carrying layer in location I (TG-01) is suspected to be found in the TUFA layer of Andesit with a depth of 25-61 meters and a layer of andesite Breksi with a depth of more than 61-100.0 meters, (ii) flow of water through intergrain space and cracks/gaps with the potential of small water/until moderate.
Modifikasi Labu Ekstraksi untuk Menghemat Penggunaan Pelarut Lemak dan Efisiensi Ekstraksi Subandi Subandi; Sukiyadi Sukiyadi
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 11 No 3 (2019)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v11i3.1466

Abstract

Limitations costs of laboratory, project business student and research using equipment soxhlet is a problem that often arise and require solutions to overcome them, one way to overcome this problem is to save the use of material without reducing the quality of the results of lab activities and research implemented. Tool Extraction of fat (soxhlet fat extraction unit) is a set of tools to perform the extraction of the fat/oil in a wide variety of materials in the form of solids, the working principle of this device is to extract the fat/oil in the ingredients with a fat solvent that is non-polar, the process of extraction takes place at subsequent extraction flask extraction results flow and accommodated in the cup of fat. Volume 150 ml cup of fat. must be filled by a grease solvent, while the fat solvent prices more expensive, so the availability of fat solvent in a chemical warehouse is relatively limited so we need innovative ways to overcome these problems. Modification of extraction flask for save of fat solvent and efficiency of extraction is an effort to conserve fat solvent by adding material to the flask extraction as an oppressor of materials that are extracted while reducing the volume of the flask extraction, thus the suppression of material extracted then extraction is efficient and the volume of solvent needed to extract the fat/oil over 24.882 percent saving.Keywords: soxhlet, solvent-fat/oil, efficiency
Peningkatan Uji Kuat Tekan Paving Block Dengan Bahan Limbah Andy Eka Saputra
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 11 No 3 (2019)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v11i3.1467

Abstract

The research will be carried out at the Soil and Water Engineering Laboratory and the Lampung State Polytechnic Agricultural Mechanization Laboratory for 6 months. In the results of each manufacture of Paving blocks for each sample, the compressive strength value is quite stable and continues to increase starting from day 1 to 28. Cement as a binding material succeeded in binding fly ash and bottom ash perfectly due to the fly ash and bottom ash content reaching optimum laboratory standard density with dry content weight of 1.47 gr/cm3 with the addition of 3000cc water at a ratio of 1: 4 making a determinant of the strength of the paving block by achieving average maximum strength of 192 kg/cm2 or K 190 and 214 kg / cm2 or K 200 at 28 days old, and included in the class B katogari SNI 03 -0691-1996, with these results showing a high increase in class D quality in research previously increased to quality B with SNI standards. Keywords: paving blocks, fly ash, bottom as.,
Rancang Bangun Prototipe Digester Biogas Untuk Menunjang Praktikum Mahasiswa Subarjo Subarjo
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 11 No 3 (2019)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v11i3.1468

Abstract

Energy is an essential requirement to support the activities and productive enterprises to produce goods and services. Almost all human activity is highly dependent on energy. Fuel shortages arise because of the level of fuel demand is very high and is increasing every year. While oil revenues are limited and membutukan earth millions of years time for formation. Due to the scarcity of fuel, causing the need of alternative energy that are environmentally become one of the necessities that can not be negotiable. The development of biogas digester technology to utilize and increase the economic value of waste is one with the road use it as raw material for biogas production. It is very suitable if to develop tool called biogas digester biogas or biogas reactor. The observation of the test digester, biogas on days 3 to 7 is not formed, even until day 14. The digester should be maintained in a state abiotis (without direct contact with oxygen; temperatures of 20-30°C). Gas began formation at day 14, and the highest gas increase at day 18 to 21, while the rate of formation of methane gas (biogas) at 13. the image that is on day 18 of 8.8 scale/cm and then on day 21 and 30 begin to decrease formation gas. the presence of the added value derived from manure waste created biogas can be used for cooking or lighting instead of electric energy. Keywords: digester, biogas, fermetation, anaerobic
Solar Power Elektrokoagulasi dengan Sistem Aliran Menerus untuk Pengolahan Air Baku Iskandar Zulkarnain
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 11 No 3 (2019)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v11i3.1469

Abstract

Electrocoagulation is the process of clumping and deposition of fine particles that dissolve in water without chemicals used. This process is the best alternative for removing turbidity in processing raw water because the treated water leaves no residue of sufat and chloride. Several studies have been conducted related to the use of the best electrodes, distance and number of electrodes and contact time. The objective of this research to design a solar power electrocoagulation device with a continuous system to be applied in the raw water treatment process on a laboratory scale by observing turbidity, TSS and pH. Keywords: electrocoagulation, raw water, turbidity.
Simulasi Kejadian Banjir Sungai Way Kandis Ruas Polinela Untuk Beberapa Kala Ulang Kelik Istanto
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 11 No 3 (2019)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v11i3.1470

Abstract

The effort to control water’s destructive power, in this case is flooding due to overflowing Kandis river, needs to be done to minimize the negative impacts. The main data in flood control infrastructure planning is discharge. The discharge calculation and simulation are required in some return periods. The objectives of research are delineate of catchment area, land cover of catchment area mapping, calculate of maksimum areal rainfall, calculate of flood discharge, and flood simulation of Kandis river in Polinela section base on flood. Kandis river catchment area of the Polinela section was 402.5 hectares and known that type of land cover consists of 15% open land, 20% vegetated land, 50% settlement, and 15% commercial area.The results shown that return period discharge in 2, 5, 10, 20, 25, 50, and 100 year are 9,89 m3/s, 11,81 m3/s, 13,07 m3/s, 14,29 m3/s, 14,68 m3/s, 15,86 m3/s, and 17,04 m3/s. By assuming there will be 1,5 % growth of settlements and commercial areas in catchment area land use as constantly number, 10 years forward, the return period discharge in 2, 5, 10, 20, 25, 50, and 100 year are 10,34 m3/s, 12,33 m3/s, 13,66 m3/s, 14,93 m3/s, 15,33 m3/s, 16,57 m3/s, and 17,80 m3/s. While by assuming there will be 3 % growth of settlements and 1 % growth of commercial areas in catchment area land use as constantly number, 10 years forward, the return period discharge in 2, 5, 10, 20, 25, 50, and 100 year are 10,58 m3/s, 12,63 m3/s, 13,99 m3/s, 15,29 m3/s, 15,70 m3/s, 16,97 m3/s, and 18,23 m3/s. Keywords :river, flood, discharge, flood simulation.
Optimasi Luas Petak Distribusi Irigasi Terputus-Putus Untuk Padi Sawah Pada Daerah Irigasi Air Tanah Dangkal Muhammad Idrus; I Gde Darmaputra; Andy Eka Saputra
Jurnal Ilmiah Teknik Pertanian - TekTan Vol 12 No 1 (2020)
Publisher : Jurusan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/tektan.v12i1.1669

Abstract

The research was conducted in rainfed paddy  field at Cisarua Village, Natar  Sub District, Lampung Selatan Region to find out the area of plot distribution irrigation water to obtained the maximum area will be irrigated and the maximum net income. The treatment of intermittent irrigation are the intermittent irrigation with area plot distribution of water irrigation of 1,000 m2, 2,000 m2, 3,000 m2, 4,000 m2, and  5,000 m2. Preparation of seedling for the intermittent irrigation treatment using paddy field.   The treatment the intermittent irigation were using transplanting of 1 young seedling (18 days after seeding) at wider space 22 cm x 22 cm with range legowo 5:1. The results of these research showed that the total amount water application for plowing, harrowing, and leveling namely 656 m3/ha, but for growing paddy plant namely 626 m3/ha for each apply water irrigation.  Icreasing the area plot distribution of water irrigation so that the area paddy field will be irrigated also increase with the same of pumping discharge.  The maximum area paddy field can be irrigated with pumping capacity of ground water of 1,243 l/dt namely 1.1 ha with combination 2 plot distribution water irrigation with size 4.000 m2 each and 1 plot distribution water irrigation with size 3,000 m2 per planting season and obtained the maximum net income of Rp 19,414,333.   The average paddy prodcution obtained 7,366.7 kg/ha with amount water irrigation application 3.782 m3/ha. The Water irrigation productivity and the total water productivity of 1.95 and 0.91 kg/m3 repectively. Keywords: irigasi intermittent irrigation, amout water irrigation application, maximum area can be irrigated, maximum net income, production and water productivity.

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