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INDONESIA
Jurnal Keteknikan Pertanian
ISSN : 24070475     EISSN : 23388439     DOI : -
Core Subject : Agriculture,
Jurnal Keteknikan Pertanian dengan No. ISSN 2338-8439, pada awalnya bernama Buletin Keteknikan Pertanian, merupakan publikasi resmi Perhimpunan Teknik Pertanian Indonesia (PERTETA) bekerjasama dengan Departemen Teknik Mesin dan Biosistem (TMB) IPB yang terbit pertama kali pada tahun 1984, berkiprah dalam pengembangan ilmu keteknikan untuk pertanian tropika dan lingkungan hayati. Jurnal ini diterbitkan dua kali setahun. Penulis makalah tidak dibatasi pada anggota PERTETA tetapi terbuka bagi masyarakat umum. Lingkup makalah, antara lain: teknik sumberdaya lahan dan air, alat dan mesin budidaya, lingkungan dan bangunan, energi alternatif dan elektrifikasi, ergonomika dan elektronika, teknik pengolahan pangan dan hasil pertanian, manajemen dan sistem informasi. Makalah dikelompokkan dalam invited paper yang menyajikan isu aktual nasional dan internasional, review perkembangan penelitian, atau penerpan ilmu dan teknologi, technical paper hasil penelitian, penerapan, atau diseminasi, serta research methodology berkaitan pengembangan modul, metode, prosedur, program aplikasi, dan lain sebagainya.
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Articles 721 Documents
Identifikasi Kekritisan Komponen Pada Lini Produksi Pabrik Gula Tebu Menggunakan Metode Equipment Criticality Rating Cahyati, Sally; Pramudya, Bambang; Pertiwi, Setyo; Herodian, Sam
Jurnal Keteknikan Pertanian Vol 25, No 1 (2011): Jurnal Keteknikan Pertanian
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Abstract ECR is one of Maintenance Performance Index (MPI)’s  criteria in The System of Eco Maintenance (SEM) proposed for sugarcane fabrication. The SEM is a maintenance system that concerns to energy conservation issue in sugarcane  fabrication. Reduction of energy consumption can affect the reduction of pollutant produced by sugarcane fabrication process. MPI and EPI (Environment Performance Index) are  Operational Performance Index (OPI)’s components that calculated by SEM. The OPI will be used for selecting a proper strategy for  revitalization of sugarcane factory. ECR uses  a pairwise comparison assesment  based on experts interview and judgement. Then, it will be calculated by Expert Choice software. The weight of  ECR’s criteria will be multiplied by criteria value from data processing  result in SEM software. The results show that the highest value of ECR is of 41.52 for Mill and Boiler station and the lowest result is of 8.83 for Drying and Packaging station. Finally the value of ECR will be classified into very critical (ECR1), critical (ECR2), less critical (ECR3) and non critical (ECR4), to determine the level of station’s criticality. keywords: ECR, eco maintenance, sugarcaneAbstrak ECR  adalah salah satu dari kriteria Indeks Kinerja Perawatan (MPI) dalam Sistem Eco Maintenance (SEM) yang diusulkan untuk pengolahan gula tebu. SEM adalah suatu sistem perawatan yang peduli terhadap isu konservasi energi dalam pengolahan gula tebu. Pengurangan konsumsi energi dapat berpengaruh terhadap pengurangan polutan yang dihasilkan oleh proses pengolahan gula tebu.  MPI dan EPI (Indeks Kinerja Lingkungan) adalah komponen-komponen dari Indeks Kinerja Operasional (OPI) yang dihitung oleh SEM. OPI akan digunakan untuk menyeleksi strategi yang tepat bagi revitalisasi pabrik pengolah gula tebu. ECR menggunakan penilaian pembandingan berpasangan berbasis pada wawancara dan penilaian pakar. Kemudian, penilaian tersebut  akan dihitung oleh piranti lunak  Expert Choice. Bobot dari kriteria ECR akan dikalikan dengan nilai kriteria dari hasil pemrosesan data dalam piranti lunak SEM. Hasilnya memperlihatkan bahwa nilai tertinggi dari ECR adalah  41.52 untuk stasiun Gilingan dan Ketel Uap dan hasil  terendah adalah 8.83 untuk stasiun Pengeringan dan Pengepakan. Pada akhirnya nilai ECR akan diklasifikasikan menjadi sangat kritis (ECR1), kritis (ECR2), kurang kritis (ECR3) dan tidak kritis (ECR4), untuk menggambarkan tingkat dari kekritisan stasiun. Kata Kunci: ECR, Eco Pemeliharaan, TebuDiterima:26 November 2010 ; Disetujui:30 Maret 2011   
Analisis Kebisingan Dan Getaran Mekanis Pada Mesin Saccof Harvester (Studi Kasus Di Kebun Tebu Cimahpar, Bogor, Jawa Barat) Kurniawati, Sunu Ariastin; Yamin, Mad
Jurnal Keteknikan Pertanian Vol 27, No 1 (2013): Jurnal Keteknikan Pertanian
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AbstractDevelopment in agricultural mechanization is characterized by the increasing use of agricultural machinery and equipments.  It can be seen from sugarcane harvesting process which machinery is used instead of manual equipment.  In term of using the harvesting machinery operated by human, the principle of ergonomic should be applied to fulfill the goal of work productivity and ensure occupational health and safety. It is because, during its operation, there will be a potential hazard, caused by noise and vibration, to workers and the environment. This research was aimed to analyze the noise and vibration level of Saccof Harvester during its employment. It was expected that the time limit for the optimal use of the machine can be determined based on the available standard. Furthermore, the method to reduce the negative impacts of noise and vibration can also be identified. According to the research, it was revealed that the noise and vibration level which was received by operator exceeded the ambient level.  Consequently, there is necessity to control of noise and vibration on both the source (harvesting machinery) and the receiver (operator). Keywords: Saccof harvester machine, noise, mechanical vibrationAbstrak Perkembangan mekanisasi pertanian dapat dilihat dari peningkatan kebutuhan akan alat-alat mekanik untuk meningkatkan dan mempermudah hasil produksi pertanian. Misalnya adalah dalam proses pemanenan tebu secara mekanis menggunakan mesin pemanen tebu, seperti sugarcane harvester sebagai peralihan dari pemanenan tebu secara manual menggunakan golok atau sabit. Suatu pekerjaan yang dilakukan oleh manusia haruslah menerapkan ergonomi dalam upaya menciptakan kenyamanan, kesehatan, keselamatan, dan produktivitas yang optimal. Penelitian ini bertujuan untuk menganalisa tingkat kebisingan dan getaran mekanis pada mesin pemanen tebu serta mengetahui sebaran tingkat kebisingan yang ditimbulkannya. Semakin tinggi tingkat kecepatan putar motor maka semakin tinggi tingkat kebisingannya dan semakin jauh jarak dari mesin maka tingkat kebisingan akan semakin berkurang. Pengendalian terhadap kebisingan dan getaran serta faktor lain yang dapat meningkatkan keselamatan kerja, dapat dilakukan dengan berbagai cara: pengendalian pada sumbernya atau pengendalian pada penerima atau operator. Kata Kunci: alat pemanen tebu, analisa kebisingan dan getaran mekanik. Diterima: 19 Oktober  2012; Disetujui: 21 Februari 2013
Analisis Iklim Mikro Kandang Domba Garut Sistem Tertutup Milik Fakultas Peternakan IPB Widyarti, Meiske; Oktavia, Yoffa
Jurnal Keteknikan Pertanian Vol 25, No 1 (2011): Jurnal Keteknikan Pertanian
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Abstracts Microclimate condition of  cage affecting  the growth of livestocks. Livestocks will be able to develop and grow optimally in a good cage condition. Cages indoor or microclimate should be comfort and fit for livestock  growth and  functioned as a protector from environment influences. A good microclimate condition is influenced by air temperature, moisture content, velocity of air flow, and intensity of light. This study aims to analyze the distribution of temperature, humidity, wind speed and patterns inside the Garut sheep’s cage. Datas are collected on Faculty of Animal Husbandry IPB’s Garut sheep fattening cages. Datas including temperature, relative humidity, wind speed, and solar radiation were taken three days from 07:00 pm until 15:00 pm and analyzed using microsof exel program. The study results showed that the highest indoor cage temperature is 33.330C at 12.00 pm., with relative humidity 73,33%  and wind speed 0,38 m / sec. This condition is not optimal enough for Garut sheeps’s growth. Keywords : animal cage, Garut sheep, micro climate. Abstrak Kondisi kandang mempengaruhi pertumbuhan ternak. Ternak akan mampu berkembang dan tumbuh secara optimal dalam kondisi kandang yang baik. Kandang yang baik harus sesuai bagi  pertumbuhan ternak antara lain kenyamanan, naungan serta perlindungan dari pengaruh lingkungan. Kondisi kandang yang baik sangat dipengaruhi oleh suhu udara, kelembaban, kecepatan angin, dan intensitas cahaya. Penelitian ini bertujuan untuk menganalisis sebaran suhu, kelembaban, kecepatan angin dan pola aliran udara di dalam kandang. Pengambilan data dilakukan di kandang penggemukan domba Fakultas Peternakan IPB. Data yang diambil meliputi suhu, RH, kecepatan angin, dan radiasi matahari. Pengukuran dilakukan mulai pukul 07.00 WIB sampai pukul 15.00 WIB. Setelah itu, data hasil pengukuran dianalisis dan dibandingkan dengan standard . Hasil penelitian menunjukkan suhu tertinggi di dalam kandang adalah 33,33 0C pada pukul 12.00 WIB. Dengan kelembaban relatif 73,33 % dan kecepatan angin 0,38 m/detik. Kondisi ini belum optimal bagi pertumbuhan domba Garut. Kata kunci : Domba Garut, iklim mikro, kandang penggemukan.Diteriam: 14 September  2010; Disetujui: 15 Februari 2011 
Analisis Sistem Proses Pindah Massa pada Ekstraksi Secara Mekanik Minyak Kedelai (Glycine Max Oil) Argo, Bambang Dwi
Jurnal Keteknikan Pertanian Vol 24, No 2 (2010): Jurnal Keteknikan Pertanian
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Abstract Soybean, a vegetable protein-rich commodity needed to improve public nutrition, safe to consume, and the price affordable. The purpose of this research are to: 1. determine the effect of pressure and time of extraction the mass balance, yield and level of soybean oil extraction, 2. Gain mass transfer coefficient value in soybean oil extraction process, and 3. analyze the mechanism of mass changes during the extraction process soybean oil is mechanically using hydraulic pressing. Oil obtained results indicate an increase due to the influence of a given amount of pressure and length of time silenced. The greater the pressure exerted, the more oil produced this shows soybean oil can come out with a maximum at the greatest pressure of 200 kg/cm2. Mass transfer coefficient in soybean oil extraction process at a pressure of 100 kg/cm2 5.57x10-5 gcm3/cm seconds. In the pressure is 200 kg/cm2 15.39 x 10-5g cm3/cm seconds. Keywords: mass transfer, mechanical extraction, soybean oil Diterima: 12 Maret 2010; Disetujui: 7 September 2010
Evaluasi Kinerja Tarik Taktor Tangan Dengan Bahan Bakar Minyak Kelapa Murni ., Desrial; Purwanto, Yohanes Aris; Wiratama, Fandra
Jurnal Keteknikan Pertanian Vol 24, No 1 (2010): Jurnal Keteknikan Pertanian
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Abstract Past research shown that coconut oil can be used directly in Diesel engine by adding a heating element in the fuel delivery system. This study aims to evaluate the performance of a hand tractor pull using pure coconut oil fuel. The Diesel engine of the tractor was equipped with a fuel heater installed on the mufler. Traction performance parameters tested were wheel slippage, drawbar pull, forward speed and drawbar power on the path of concrete and soil. Besides, the tractor was also tested on plowing using a moldboard plow. The test results on the concrete track showed that the maximum drawbar pull was 1.21 kN generated at a speed of 0.92 m/s, with a maximum drawbar power of 1.21 kW at the wheel slip of 10.87%. While the drawbar pull on the soil track was 1.37 kN at a speed of 0.79 m/s, with a maximum value of 0.71 kW drawbar power when wheels slip 22.25%. The results of tillage test showed that field efficiency was 84.66%, which was not much different from the test result using Diesel fuel. Keywords: fuel heater, Diesel engine, pure coconut oil, drawbar pull performance Diterima: 8 Desember 2009; Disetujui: 16 Maret 2010
Deteksi Ujung Biji Ginko Menggunakan Pengolahan Citra Berbasis Analisis Morfologi Ahmad, Usman
Jurnal Keteknikan Pertanian Vol 27, No 1 (2013): Jurnal Keteknikan Pertanian
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Abstrak Biji ginkgo harus dibuka untuk diambil dan dimanfaatkan isinya yang lunak. Untuk membuka pelindung daging biji yang keras, orientasi biji harus diketahui, karena biji lebih mudah terbuka pada ujungnya, sedangkan bagian pangkalnya cenderung tetap menyatu. Bila orientasi tidak tepat, maka akan dibutuhkan gaya tekan yang jauh lebih besar untuk membukanya, sehingga seringkali daging biji ikut rusak terkena gaya tekan yang berlebihan. Program pengolahan citra dibuat dan digunakan untuk melakukan deteksi bagian ujung dari biji ginkgo. Hasil deteksi bagian ujung biji menggunakan algoritma berdasarkan analisis morfologi masing-masing 100% untuk Kinbei, 85% untuk Kyujyu, dan 65% untuk Tokuro. Operasi morfologi dilakukan untuk memperbaiki bentuk biji pada citra biner sehingga kemampuan deteksi ujung biji dapat ditingkatkan. Hasil deteksi bagian ujung biji setelah operasi perbaikan bentuk dilakukan masing-masing meningkat menjadi 100% untuk Kyujyu dan 85% untuk Tokuro, sedangkan Kinbei tidak terpengaruh, tetap 100%. Kata Kunci: biji ginkgo, deteksi ujung biji, pengolahan citra, morfologi analisis Abstract Ginkgo nut has to be cracked to obtain its soft and usefull meat for utilization. To crack the hard shell, nut orientation is important to know because the nut is easier to crack at front side or tip or tip part, while the back side is usially remain uncracked. Wrong orientation will need more power to crack the nut and damage to soft meat might be occur due to exessive power. Image processing program was developed and used to detect tip part of the nut. The results of tip detection based on morphological analysis algorithm are 100% for Kinbei, 85% for Kyujyu, and 65% for Tokuro. To improve detection performance, Mhorpological Operation Were are 100% for Kyujyu and 85% for Tokuro, While for Tokuro is remain unffected, 100% detected. Keyword: gingko nut, tip detection, image processing, morphology analysis Diterima: 24 Desember 2012; Disetujui: 25 Maret 2013  
Faktor Influencing the Vacuum Freezing Rate of Liquid Food Tambunan, Armansyah H.
Jurnal Keteknikan Pertanian Vol 14, No 3 (2000): Buletin Keteknikan Pertanian
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Many,freezing methods, mechanicul as well as cryogenic, have been in wide application in food industries. Each method has its own advantage, but in regard with the food quality, freezing rule can be accomplished by the method is one of the tnost important factors. Nowadays, many researchers are conducting experiment in order to enhance thefi.eezing rate. This paper deals with the advantage of vacuum freezing method in enhancing the freezing rate and its applicability for liquidfood.Experinrent was carried out for distilled water, milk, and fruit juice using multi-purpose vacuum equipment. As easily predicted, minimum pressure of the freezing chamber determine temperature of the product. Vuriation on the fruit juice concentration shows that faster freezing rate canbe achieved if the product is more dilute. The experiment also showed that freezing rute obtained by vacuumj-eeziirg was signijkantly faster than contact plate freezing method.
PENGGUNAAN PERSAMAAN HIPERBOLOID UNTUK IDENTIFIKASI STRUKTUR GEOMETRI BAJAK SINGKAL Kamadibrata, Ade Moetangad
Jurnal Keteknikan Pertanian Vol 20, No 1 (2006): Jurnal Keteknikan Pertanian
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Abstract Various geometric structures of moldboard ploughs need to be identified since there have been confusing uses of European and Asian Ploughs in cultivating lowland fields: the European one that was constructed for tillage of upland soil prior to destruct impervious soil layers in root zones has been frequently applied in wetland paddyufields. It leads to frequently disturbances of the formation of hardpan layer structures required for an ideal wetland paddy field that should be formed within a soil depth of 20-40 cm. The research observed three types of moldboard ploughs dominantly operated in wetland paddy filds: a wood (Lanyam), a wood-iron (Brujul) and an iron/steel ploughs. Research method employed a descriptive explanatory one to identify the geometric stucture of the ploughs based on hyperboloid equation: ´2/a2 + Y2/b2-Z2/c2= 1. The plough identity was determined by ratio values amongst the constans a, b and c of the equation, i,e.; R1 = a/b R2 = a/c, and R3 = b/c, where the respective constants were caculated according to the positions of a numbers of coordinate points on the moldboards projected in the Cartesian coordinate system. Results of identification showed thaht the values of R1, R2 and R3 could indicate the identity of the ploughs where Lanyam and Brujul were categorized into the types of  Asian ploughs where Lanyam and Brujul were categorized into the types of Asian ploughs by their R1 and R2 < 1 and R3 1, so their operation on wetland paddy fields were reasonable. Whereas the iron/steel one was categorized into the type of European ploughs by R1 and R2 > 1 R3 << 1. They should not be recommended to be operated on wetland paddy fields. Keyword: Asian & European moldboard ploughs, hyperboloid equation, constant ratios of hyperboloid equation.
Simulation Study on Freeze-drying Characteristics of Mashed Beef Tambunan, Armansyah H.; Solahudin, M.; Rahajeng, Estri
Jurnal Keteknikan Pertanian Vol 14, No 1 (2000): Buletin Keteknikan Pertanian
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Drying characteristic of a particular product is important in analyzing the appropriateness of the drying method for the product. This is especially important for freeze drying, which is known as the most expensive drying method, asideji-om its good drying quality. The objectives of this experiment are to develop a computer simulation program using a retreating drying-frontmodel for predicting freeze drying characteristics of mashed nteat, especially for the influence of sublimation temperature and thermal conductivity.
Aplikasi Model Artificial Neural Network Terintegrasi dengan Geographycal Information System untuk Evaluasi Kesesuaian Lahan Perkebunan Kakao ., Hermantoro; ., Rudiyanto; Suprayogi, Slamet
Jurnal Keteknikan Pertanian Vol 22, No 1 (2008): Jurnal Keteknikan Pertanian
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Land evaluation for specific purpose in plantation sector become very important due to increasing the competition in land use and the development of plantation sector. Land evaluation produces information of land economic values for specific land use. The objective of the research is to develop land evaluation method for cocoa estate using integrated model Artificial Neural Network (ANN) and Geographical Information System (GIS). Back propagation ANN model were used to predict cocoa yield base on land qualities parameter. The result shows that the best of ANN model to predict cocoa yield have 15 input layer, 15 hidden layer, and 1 output layer. with the determination coefficient (r2) of 0.99 and Root Mean Square Error (RMSE) of 93.83 in the training process, otherwise in the testing found the r2 of O. 76 and RMSE of 113.83. In verification stage the integrated model ofANN and GIS was used to evaluate land suitability of Wijayaarga Cocoa Plantation is seem accurate in predicting cocoa yield and easers to mapping the land suitability unit.  Keyword: ANN, GIS, Land Evaluation, Cocoa Diterima: 04 Juni 2007; Disetujui: 18 September 2007

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