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All Journal Jurnal Keteknikan Pertanian Agrointek Jurnal Teknologi Pertanian agriTECH Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agritechno G-Tech : Jurnal Teknologi Terapan International Journal of Oil Palm

Radite Praeko Agus Setiawan

Departemen Teknik Mesin Dan Biosistem, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Jl. Raya Darmaga Kampus IPB Darmaga, Bogor 16680

Author-ID : 2649690

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Environmental Science

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Pengaruh Receiver Terhadap Kinerja Refrigerasi Mesin Pembeku Paulus Sukusno; Armansyah H. Tambunan; Radite Praeko Agus Setiawan; Yohanes Aris Purwanto
Jurnal Keteknikan Pertanian Vol. 6 No. 3 (2018): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractFreezing is the best method to preserve the quality of food for a long period of time compared to other technologies such as drying and canning. Technology of freezing requires more energy than other preservation technologies, however. Therefore, an energy efficient freezer is needed. This research aims to the effect of utilization of a receiver to improve the freezer performance efficency. The research is conducted on freezer used to cool and freeze 1 kg of water from a temperature of 27oC to -14oC, then a receiver is installed in the freezer and the same research is conducted (the type and setting of expansion valve and test materials are the same). The refrigerant medium is R404A working fluid. The receiver is installed between condenser and filter dryer in the system circuit of the freezer. The result shows that the utilization of receiver increases the coefficent of performance (COP) from 2.24 to 2.69 and reduce the electricity consumption. The time required for freezing becomes shorter particularly on the transition of liquid to solid phase (ice) . Consequently, the freezing rate becomes quicker and provides advantages for application of food freezing.AbstrakPembekuan merupakan metode yang paling baik untuk menjaga kualitas makanan dalam jangka waktu lama, dibanding dengan teknologi lain seperti pengeringan dan pengalengan. Namun teknologi pembekuan membutuhkan lebih banyak energi daripada teknologi pengawetan lainnya, karena itu diperlukan mesin pembeku yang hemat energi. Penelitian ini bertujuan untuk mempelajari pengaruh penggunaan receiver untuk meningkatkan efisiensi kinerja mesin pembeku. Penelitian dilakukan pada mesin pembeku yang digunakan untuk mendinginkan dan membekukan air 1 kg dari suhu 27oC sampai -14oC, selanjutnya penelitian mesin pembeku ditambahkan receiver dan dilakukan penelitian yang sama (bukaan katup ekpansi diatur tetap dan sama, serta bahan uji dilakukan dalam kondisi sama). Media pendingin menggunakan fluida kerja R404A. Receiver diletakkan di antara kondensor dan filter dryer pada rangkaian sistem mesin pembeku. Hasil penelitian menunjukkan bahwa penggunaan receiver pada mesin pembeku berdampak pada peningkataan koefisien kinerja (COP) dari 2.24 menjadi 2.69, dan terjadi penghematan konsumsi energi listrik. Waktu proses pembekuan menjadi lebih singkat, khususnya pada tahap perubahan fase cair menjadi es, sehingga laju pembekuan menjadi lebih cepat dan memberi keuntungan untuk penerapan pada pembekuan bahan pangan.

Rancang Bangun dan Pengujian Penetrometer Digital dengan Perekam Data Berbasis Android Budi Priyonggo; I Dewa Made Subrata; Radite Praeko Agus Setiawan
Jurnal Keteknikan Pertanian Vol. 7 No. 1 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Abstract Static penetrometer is designed to measure the force that required to push a conical probe of the soil deepness through a constant velocity. The output data are force per unit area without soil factor influenced, i.e. soil moisture content. Soil moisture content is an important factor that affects soil penetration resistance. The soil moisture content method that commonly uses a gravimetric method can takes a long time to obtain data of soil moisture conten. Therefore a penetrometer is needed which can measure the soil moisture content at once. The objective of study is to design and develop static penetrometer equipped with soil moisture sensor and android based data record system. Loadcell and HX711 used as force sensor, HC-SR04 and DHT11 used as depth sensor and a kit soil moisture module has been modified as soil moisture sensor. Calibration and validation result of the sensor shown that the correlation value of R2=0.9994 and R2=0.9995 (force sensor), R2=0.9999 and R2=0.9999 (depth sensor) and R2= 0.9098 and R2=0.9255 (soil moisture sensor). Penetrometer performance test in land result obtained the value of R2=0.9583 for cone index, R2=0.9994 for depth sensor dan R2=0.6673 moisture content sensor. Penetrometer pervormance test in rice field result obtained the value of R2=0.9583 for cone index, R2=0.9941 for depth sensor and R2=0.7201 moisture content sensor. The result of regression anlaysis for moisture content equation obtained value R2=0.7201 for testing on dry land and R2=0.9058 for testing in the paddy fields. The experimental result shown that the new develop penetrometer instrument can be used as an alternative instrument to measure soil pentration that eqquiped with soil moisture content data.AbstrakPenetrometer statis didesain untuk mengukur gaya yang dibutuhkan untuk menekan probe kerucut kedalaman tanah dengan kecepatan konstan. Output datanya adalah gaya persatuan luas tanpa faktor sifat tanah lain seperti kadar air. Kadar air tanah merupakan faktor penting yang memengaruhi tahanan penetrasi tanah. Metode pengukuran kadar air yang umum menggunakan metode gravimetri yang membutuhkan waktu cukup lama untuk mendapatkan data kadar air tanah. Maka dari itu dibutuhkan penetrometer yang dapat sekaligus mengukur kadar air dengan baik. Tujuan dari penelitian ini adalah merancang, membangun dan menguji penetrometer digital dilengkapi pembacaan kadar air dengan perekam data berbasis android. Loadcell dan HX711 digunakan sebagai sensor gaya, HC-SR04 dan DHT11 digunakan sebagai sensor kedalaman dan kit sensor kadar air tanah termodifikasi digunakan sebagai sensor kadar air. Hasil kalibrasi dan validasi sensor didapatkan nilai R2=0.9994 dan R2=0.9995 untuk sensor gaya, R2=0.9999 dan R2=0.9999 untuk sensor kedalaman, R2=0.9098 dan R2=0.9255 untuk sensor kadar air tanah. Hasil pengujian kinerja di lahan kering secara terpadu di dapatkan nilai nilai R2=0.9583 untuk cone index, R2=0.9994 untuk sensor kedalaman dan R2=0.6673 untuk sensor kadar air. Hasil pengujian di lahan sawah didapatkan nilai R2=0.9583 untuk sensor gaya, R2=0.9941 untuk sensor kedalaman dan R2=0.7696 untuk sensor kadar air. Hasil analisis regresi pada proses kalibrasi ulang didapat persamaan penduga kadar air dengan nilai R2=0.7201 untuk pengujian di lahan kering dan R2=0.9058 untuk pengujian di lahan sawah. Berdasarkan data yang didapatkan maka penetrometer yang dirancang dapat digunakan sebagai alternatif instrumen ukur tahanan penetrasi yang dilengkapi dengan data kadar air.

Prototype of Corn Thresher Unit for Corn Combine Harvester Diang Sagita; Radite Praeko Agus Setiawan; Wawan Hermawan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 8, No 3 (2019): September
Publisher : The University of Lampung

One of the ways to support corn production is through technology implementation, but the domestic industries have not attempted to produce technology for harvesting activities especially corn harvesting. This research was carried out to get the best design, prototype and performance of corn thresher unit to be applied to the design of a corn combine harvester. The components consist of threshing cylinders, perforated cages, grain screw conveyors and corn cob entry holes. The research method begins from analyzing (functional and structural designs), designing, testing performance, evaluating and modifying. The performance test was carried out stationary using corn cob raw material. The performance of the thresher unit has been quite good. The results show that the best performance was the prototype with the last modification (C). Threshing efficiency reached 93.75%, percentage of un-threshed kernel was 6.25%, and cleanliness level 90.68%. While threshing capacity was 358.28 kg/hour, which corn cob feeding was carried out by humans with a feeding capacity of 420.05 kg/hour

RANCANG BANGUN DAN PENGUJIAN ALAT TANAM MURBEI Syahrial Sabaniah; Radite Praeko Agus Setiawan; Wawan Hermawan; Lenny Saulia
Jurnal Agritechno Jurnal Agritechno Vol. 15, Nomor 2, Oktober 2022
Publisher : Depertemen Teknologi Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/at.vi.701

Mulberry (Morus Sp.) is widely used in sericulture as silkworms’ fodder. Aside from being a silkworm feed, mulberry plants can also be used as food crops, animal feed and medicine. Mulberry plant breeding can be done by two methods, generative method (through seeds) and vegetative method (part of the plant itself). Vegetative seedlings methods have been done by many silk farmers. Vegetative techniques are relatively easier to do and quickly get leaf production. Vegetative techniques that are mostly used is stake. In mulberry cultivation, one of the processes that consumes a lot of energy is the planting process. Planting mulberry stake is still done manually. In this study planter will be designed which are expected to increase the capacity and efficiency of planting. The design process includes a preliminary study in the form of a study of material characteristics to determine design criteria. After that, the selection of components and mechanisms is carried out, followed by making drawings and prototypes. Planter prototypes tested with static test to evaluate the function of metering device. The Result obtained collecting function error is 0.5 % with one case where metering device fail to collect and zero case of more than one stake collected. The average of damaged stake is 2 % but mostly happen in left metering device with 4 %. The number indicates that modification is needed.

Statistical Analysis of Effect of pH Treatment on Biohydrogen Production from POME Waste Junita Tarigan; Armansyah Halomoan Tambunan; Radite Praeko Agus Setiawan; Obie Farobie; Furqon
Jurnal Keteknikan Pertanian Vol. 10 No. 3 (2022): Desember 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.3.319-327

Palm Oil Mill Effluent (POME) has the potency to be converted to biohydrogen by dark fermentation. The statistical approach was used to determine the relationship between pH and biohydrogen production. This study aims to investigate the effect of pH on biohydrogen production with a statistical approach. Three substrates were treated with neutral pH and three without pH treatment. This experiment used the trapezoidal numerical integration method to get the total production of H2 produced per measurement time interval. There are nine substrate combinations tested. Three tests concluded that there was no difference in hydrogen production due to the pH treatment, and the sixth test concluded that there was a difference in hydrogen production due to the influence of pH. The tendency of every substrate to influence biohydrogen production without pH treatment and with pH treatment is a polynomial degree 3.

Analisis Karakteristik Tandan Kosong Sawit Menggunakan Metode FT-IR dan Pirolisis-GCMS Joni; Radite Praeko Agus Setiawan; Kiman Siregar
G-Tech: Jurnal Teknologi Terapan Vol 7 No 2 (2023): G-Tech, Vol. 7 No. 2 April 2023
Publisher : Universitas Islam Raden Rahmat, Malang

Tandan kosong sawit (TKS) adalah limbah hasil dari proses pengolahan minyak sawit yang terdiri dari serat dan kulit yang masih mengandung minyak. TKS dapat digunakan sebagai bahan bakar pembangkit listrik atau dalam proses pirolisis untuk menghasilkan bio-oil, biogas, dan biochar. Penelitian ini adalah untuk menganalisis komposisi kimia dan menentukan profil karakteristik tandan kosong sawit menggunakan metode FT-IR dan Pirolisis-GCMS. Ini membantu untuk memahami lebih baik tentang kualitas tandan kosong sawit dan potensinya sebagai sumber bahan baku. Hasil uji menunjukkan kandungan kimia TKS yang beragam dan gugus-gugus fungsional seperti hidrokarbon, alkohol, aldehyde, asam, hidroksi, karboksilat, keton, klorida, nitrat, nitril, amina, fenol, hidrogen sulfida, sulfur, dan oksigen. Nilai kalor TKS bervariasi antara 4.000 - 4.400 kkal atau 16,6 - 18,48 kJ per metrik ton. Pirolisis pada suhu 400oC menghasilkan senyawa yang memiliki gugus hidrokarbon alifatik dan asiklik, serta kandungan metana yang lebih tinggi.

Analisis Daya Dukung Tanah pada Penerapan Mesin Pertanian di Kulon Progo Eko Fajar Nugroho; Liyantono Liyantono; Radite Praeko Agus Setiawan
Jurnal Keteknikan Pertanian Vol. 13 No. 1 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.1.1-17

A critical factor in the enhancement of agricultural productivity is the utilization of agricultural tools and machinery. The challenges posed by reduced labor, narrow rice fields, and deep surface soil layers create significant difficulties for such equipment. Soil penetration resistance refers to the capacity of soil to resist the loads applied to it. The pressure exerted on the soil by agricultural machinery and tools hinders their effective functioning. The present study has been designed to determine the influence of soil evaporation resistance value on the type of agricultural machinery that can be applied. The measurement of soil carrying capacity value is measured in 3 land categories. The analysis was carried out by comparing the value of soil penetration resistance with the tractor's trafficability index. This research was conducted from February to July 2024, and the measured penetration resistance in the sample land was found to be in the range of 0.55–0.90 at a depth of 10 cm and 0.82–1.14 at a depth of 15 cm. A comparison of the penetration resistance values with the trafficability index, which delineates the operational parameters for agricultural machinery, revealed that four-wheel tractors and combine harvesters would be unable to operate on the sample land. The application of these machines would result in subsidence levels of more than 15 cm for category 1 and 2 and more than 20 cm for category 3.

Optimization of Suction Channel System on Vacuum-Type Soybean Seed Metering System Powered by Hand Tractor Adhiasta Faris Setiabudi; Wawan Hermawan; Radite Praeko Agus Setiawan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.391-403

A vacuum-type soybean seeder powered by hand tractor for Indonesia’s local soybean has been developed to overcome soybean low productivity. The developed machine still has a weakness in the context of the suction channel system. This research was conducted to optimize the suction channel system efficiency, suction performance for bigger type of seed variety, and suction effect uniformity on all metering device. The research step consisted of seed characteristic measurement for two Indonesia’s common local soybean seed variety (Anjasmoro and Grobogan), suction channel system modification and analysis, and validation based on computational fluid dynamic (CFD). The result in this research are proposed 3-types of optimized model with final selection of 1-type of model, namely Branch model. The values produced by the optimized model compared to existing model respectively 3.393 kPa (CV 0.10%) and 3.112 kPa (CV 1.54%) for negative pressure, 14.39 m/s (CV 4.11%) and 9.08 m/s (3.44%) for suction velocity, as well as 117.342 Pa and 118.147 Pa for total pressure-loss. The required value for Anjasmoro and Grobogan seed variety respectively 3.094 kPa and 3.358 kPa for negative pressure pressure, as well as 10.22 m/s and 10.03 m/s for suction velocity. Hence, the selected optimized model is more efficient, uniform, and can accommodate required negative pressure pressure and suction velocity for both Anjasmoro and Grobogan, while the existing model can only accommodate Anjasmoro. Keywords: CFD, Metering device, Optimization, Pneumatic, Soybean.

Study on Characteristics of Oil Palm Empty Fruit Bunch to Predict Condensation Temperature of Tar From Its Pyrolysis Gas Joni Joni; Armansyah Halomoan Tambunan; Radite Praeko Agus Setiawan; Kiman Siregar
International Journal of Oil Palm Vol. 2 No. 3 (2019): September 2019
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v2i3.42

Palm oil is one type of plants that has various advantages. One of the advantages is almost all parts of the plant, such as trunk, empty fruit bunch (EFB), and the extracted oil, can be utilized as energy. Utilization of EFB for energy, especially the use of combustible gas as direct feed of combustion engines to generate electricity is still rarely used. This is related to the water content and the large amount of volatile substances that will give an unfavorable impact on the quality of the gas produced. To overcome this, information on the characteristics and thermophysical properties, such as dew point, of gases from the EFB biomass is indispensable. In this study, three EFB samples were taken from three different environmental conditions, namely samples A, B and C, to be analyzed. The elemental and proximate analysis as well as GCMS pyrolysis test of the samples were then used to characterize the EFB and determine its thermo-physical properties in terms of its dew point. The elemental analysis of the EFB samples showed disparity of its content, which was around 52.08 ± 7.59% (C), 7.05 ± 0.53% (H), 2.28 ± 0.43% (N), 0.35 ± 0.36% (S) and 34.84 ± 4.45% (O). Likewise, the proximate analysis showed differences around 4.49 ± 2.60% (MC), 5.80 ± 1.97% (FC) and 73.44 ± 3.78% (VM). From the elemental and proximate analysis, it can be predicted that tar compounds produced from pyrolysis of the EFB at a temperature of 400oC, was in the form of mixed oxidation compounds (mixed oxygenates). The compounds were classified as the first tar compound (class 2) consisting of phenols (ketones, phenol and guaiacol). The condensation temperature and the concentration of the tar in its pyrolysis gas were predicted to be 204.22oC, tar 1720.79 mg/Nm3 (sample A); 256.02oC, tar 92.97 mg/Nm3 (sample B); and154.85oC, tar 359.02 mg/Nm3 (sample C), respectively. This information can be useful in designing the tar elimination devices from the pyrolysis gas.

Traction Performance Analysis of Three Models of Traction Device for Muddy Soil Syaputra, Frandy Mey; Hermawan, Wawan; Setiawan, Radite Praeko Agus
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1627-1637

Muddy paddy fields cause the traction performance of conventional traction devices to be suboptimal. Research on the analysis of traction performance on various traction devices is needed. The objective of this research is to design, analyze traction performance, and determine the best design from three models of traction devices, i.e. 1) track type, 2) pedal type, and 3) screw type on deep muddy soil. The research method used in this study is experimental, testing the traction performance of the three models at soil bin in muddy soil conditions at 25 cm deep. The parameters measured during the traction performance test are slip, sinkage, and traction efficiency. The treatment used in this study is a vertical load ranging from 93.2 N to 222.7 N. The best traction device design was chosen using the Analytical Hierarchy Process method. The results show that the traction performance achieved the highest score in determining the best traction device design, with a score of 0.78 (track) for the minimum load, 0.83 (track) for the medium load, and 0.87 (track) for the maximum load. Therefore, the track design was ideal, scoring the highest across all parameters.

Co-Authors Abdul Azis Adhiasta Faris Setiabudi Agustami Sitorus Agustami Sitorus, Agustami Andreas . Aris Purwanto Armansyah H. Tambunan Armansyah Halomoan Tambunan Azmi Asyidda Mushoffa Bintang Sipartogi Panjaitan Budi Priyonggo Diang Sagita Diang Sagita Eko Fajar Nugroho Furqon I Dewa Made Subrata I Nengah Suastawa Joni Joni Joni Junita Tarigan Jusran Jusran Kiman Siregar Kiman Siregar Kiman Siregar, Kiman Lenny Saulia Linda Lestari Liyantono . Marpaung, Johana Muhammad Rizal Muhammad Sigit Gunawan Muhammad Zairin Yunior Muqroob Tajalli Obie Farobie Paulus Sukusno Pomalingo, Moh Fikri Prima Sanjaya Raju, Muhammad Rusnadi . Samsul Bahri Sebayang, Renaldi Setya Permana Setya Permana Sutisna Soeharsono . Syahrial Sabaniah Syaputra, Frandy Mey Tatun Hayatun Nufus Tineke Mandang Ubaidillah . Wawan Hermawan Wawan Hermawan Wawan Hermawan Yazid lzmi lntara

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