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All Journal International Journal of Renewable Energy Development Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Hubungan Internasional Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Batoboh : Jurnal Pengabdian Pada Masyarakat Jurnal Peternakan (Jurnal of Animal Science) INTERNATIONAL JOURNAL OF NURSING AND MIDWIFERY SCIENCE (IJNMS) JURNAL REFORMASI ADMINISTRASI Jurnal Ilmiah untuk Mewujudkan Masyarakat Madani Jurnal Ilmu Politik dan Komunikasi Global Political Studies Journal Journal of Social Political Sciences (JSPS) Well Being Sibatik Journal : Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan Papua Journal Of Diplomacy And International Relations Jurnal Agricultural Biosystem Engineering Intermestic: Journal of International Studies Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Innovative: Journal Of Social Science Research Scientica: Jurnal Ilmiah Sains dan Teknologi Jurnal Ners dan Kebidanan (Journal of Ners and Midwifery) Journal of Engineering and Technological Sciences Agrikultura Masyarakat Tani: Jurnal Pengabdian kepada masyarakat
Agus Haryanto
STMIK Amikom Yogyakarta
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PRINSIP BEBAS AKTIF DALAM KEBIJAKAN LUAR NEGERI INDONESIA: PERSPEKTIF TEORI PERAN Haryanto, Agus
JIPSI Jurnal Ilmu Politik dan Komunikasi Vol 4 No 02 (2014): Jurnal Ilmu Politik dan Komunikasi
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik, Universitas Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/jipsi.v4i02.165

Abstract

Tulisan ini akan menjelaskan salah satu sumber utama kebijakan luar negeri Indonesia yaitu prinsip bebasaktif. Prinsip bebas aktif telah diterapkan secara kontinyu sejak tahun 1945 hingga saat ini sehingga seringkaliprinsip ini menjadi tolak ukur kebijakan luar negeri. Dalam tulisan ini, prinsip bebas aktif akan dilihat dalamperspektif teori peran dalam kebijakan luar negeri. Dalam teori peran, kebijakan luar negeri sebuah negarabersumber pada dua hal yaitu konsepsi peran dan harapan peran. Prinsip bebas aktif merupakan salah satusumber konsepsi peran bagi Indonesia sehingga prinsip ini patut dilihat seberapa besar pengaruhnya danbagaimana digunakan oleh para pengambil kebijakan. Dalam tulisan ini, penulis akan mengeksplorasi dinamikapolitik luar negeri dengan prinsip bebas aktif dari masa Soekarno sampai Susilo Bambang Yudhoyono (SBY).Kata kunci: Kebijakan Luar Negeri, Prinsip Bebas Aktif, Teori Peran
Developing A Family-Size Biogas-Fueled Electricity Generating System Haryanto, Agus; Marotin, Fadli; Triyono, Sugeng; Hasanudin, Udin
International Journal of Renewable Energy Development Vol 6, No 2 (2017): July 2017
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.6.2.111-118

Abstract

The purpose of this study is to develop a family-size biogas-fueled electricity generating system consisting of anaerobic digester, bio-filter scrubber, and power generating engine. Biogas was produced from a pilot scale wet anaerobic digester (5-m3 capacity). The biogas was filtered using bio-scrubber column filled with locally made compost to reduce hydrogen sulfide (H2S) content. Biogas composition was analysed using a gas chromatograph and its H2S level was measured using a H2S detector. A 750-W four stroke power generating engine was used with 100% biogas. Biogas consumed by the generator engine was measured at different load from 100 to 700 W (13.3 to 93.3% of the rated power). Three replications for each load experiment were taken. Results showed that the total biogas yield was 1.91 m3/day with methane content of 56.48% by volume. Bio-filter successfully reduced H2S content in the biogas by 98% (from 400 ppm to 9 ppm). Generator engine showed good performance during the test with average biogas consumption of 415.3 L/h. Specific biogas consumption decreased from 5.05 L/Wh to 1.15 L/Wh at loads of 100 W to 700 W, respectively. Thermal efficiency increased with loads from 6.4% at 100 W to 28.1 at 700 W. The highest thermal efficiency of 30% was achieved at a load of 600 W (80% of the rated power) with specific biogas consumption of 1.07 L/Wh.Article History: Received Janury 16th 2017; Received in revised form 2nd June 2017; Accepted 18th June 2017; Available onlineHow to Cite This Article: Haryanto, A., Marotin, F., Triyono, S., Hasanudin, U. (2017), Developing A Family-Size Biogas-Fueled Electricity Generating System. International Journal of Renewable Energy Development, 6(2), 111-118.https://doi.org/10.14710/ijred.6.2.111-118
Effect of Hydraulic Retention Time on Biogas Production from Cow Dung in A Semi Continuous Anaerobic Digester Haryanto, Agus; Triyono, Sugeng; Wicaksono, Nugroho Hargo
International Journal of Renewable Energy Development Vol 7, No 2 (2018): July 2018
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.7.2.93-100

Abstract

The efficiency of biogas production in semi-continuous anaerobic digester is influenced by several factors, among other is loading rate. This research aimed at determining the effect of hydraulic retention time (HRT) on the biogas yield. Experiment was conducted using lab scale self-designed anaerobic digester of 36-L capacity with substrate of a mixture of fresh cow dung and water at a ratio of 1:1. Experiment was run with substrate initial amount of 25 L and five treatment variations of HRT, namely 1.31 gVS/L/d (P1), 2.47 gVS/L/d (P2), 3.82 gVS/L/d (P3), 5.35 gVS/L/d (P4) and 6.67 gVS/L/d (P5). Digester performance including pH, temperature, and biogas yield was measured every day. After stable condition was achieved, biogas composition was analyzed using a gas chromatograph. A 10-day moving average analysis of biogas production was performed to compare biogas yield of each treatment. Results showed that digesters run quite well with average pH of 6.8-7.0 and average daily temperature 28.7-29.1. The best biogas productivity (77.32 L/kg VSremoval) was found in P1 treatment (organic loading rate of 1.31 g/L/d) with biogas yield of 7.23 L/d. With methane content of 57.23% treatment P1 also produce the highest methane yield. Biogas production showed a stable rate after the day of 44. Modified Gompertz kinetic equation is suitable to model daily biogas yield as a function of digestion time.Article History: Received March 24th 2018; Received in revised form June 2nd 2018; Accepted June 16th 2018; Available onlineHow to Cite This Article: Haryanto, A., Triyono, S., and Wicaksono, N.H. (2018) Effect of Loading Rate on Biogas Production from Cow Dung in A Semi Continuous Anaerobic Digester. Int. Journal of Renewable Energy Development, 7(2), 93-100.https://doi.org/10.14710/ijred.7.2.93-100
Faktor Geografis dan Konsepsi Peran Nasional sebagai Sumber Politik Luar Negeri Indonesia Haryanto, Agus
Jurnal Hubungan Internasional Vol 4, No 2 (2015): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/hi.2015.0074.136-147

Abstract

This paper discusses the geographical factor as the source of the national role conception and foreign policy of a country. Indonesia has realized his strategic geographic location that laid between two oceans and two continents since the early days of independence. Indonesia is also aware of the geographical features as an archipelagic state. Its raises awareness of Indonesia to keep his territory for the declaration of Djuanda. This paper explore the Indonesian foreign policy that still using geographical factor as a source of foreign policy. This can be seen from the efforts of Indonesia continues to participate in various regional issues that could potentially interfere the sovereignty of Indonesia such as the disputed South China Sea and East China Sea. Indonesia also seeks active in border diplomacy to ensure the sovereignty of its territory.
EVALUASI TEKNIK PENYIMPANAN DINGIN TERHADAP ORGANOLEPTIK TELUR KONSUMSI Rahmawati, Winda; Kiromah, Isrofiatul; Telaumbanua, Mareli; Haryanto, Agus; Tamrin, Tamrin
Jurnal Peternakan (Jurnal of Animal Science) Vol 8, No 1 (2023): JURNAL PETERNAKAN (JURNAL OF ANIMAL SCIENCE)
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jas.v8i1.16747

Abstract

Telur merupakan bahan pangan yang tergolong cepat rusak. Oleh sebab itu sehingga perlu memerlukan dilakukan penanganan secara tepat untuk mempertahankan kualitasnya. Penyimpanan dingin dapat menjaga kualitas telur dan meningkatkan daya simpan. Tujuan dari penelitian adalah mengevaluasi kualitas telur konsumsi dengan suhu penyimpanan dingin yang berbeda melalui uji organoleptik. Rancangan penelitian yaitu Rancangan Acak Lengkap (RAL) dengan 3 ulangan. Jenis telur pada penelitian yaitu telur ayam ras, telur itik dan telur puyuh kemudian disimpan pada suhu dingin (5°C, 10°C dan 15°C) selama 60 hari. Parameter uji organoleptik yang diamati terdiri dari rasa, aroma, warna dan tekstur. Hasil penelitian yaitu telur yang disimpan pada suhu 5°C, 10°C dan 15°C tidak berpengaruh nyata terhadap aroma, warna, rasa dan tesktur telur pada tingkat kesukaan panelis. Aroma telur itik dinilai lebih amis daripada telur ayam dan telur itik. Warna kuning telur itik lebih terang dibandingkan telur ayam dan telur puyuh. Kesimpulan penelitian adalah uji organoleptik dari aroma, warna, rasa dan tekstur pada telur pada penyimpanan dingin selama 60 hari masih dapat diterima atau disukai oleh panelis.
Torefaksi Pelet Tandan Kosong Kelapa Sawit Menggunakan Reaktor Putar Purnomo, Cahyo Eko; Haryanto, Agus; Wisnu, Febryan Kusuma; Telaumbanua, Mareli
Jurnal Agricultural Biosystem Engineering Vol 1, No 1 (2022): Maret 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1379.764 KB) | DOI: 10.23960/jurnal abe.v1i1.5547

Abstract

Biomass is organic material produced from the process of photosynthesis. Biomass can be produced directly as a product or waste from processing agricultural or plantation products. One of the most abundant biomass is the waste generated from oil palm processing, including oil palm empty fruit bunches (OPEFB). Basically, OPEFB waste is only used as natural mulch or only disposed of in oil palm plantations. There are very few processing methods that convert into uniform shape and size biomass pellets, biomass pellets require an additional process called torrefaction, this is done to make bioenergy utilization more optimal. The quality of biomass pellets can be improved through torrefaction, which is a heat treatment process at a temperature range of 200°C–300°C under limited oxygen conditions. This study aims to examine the effect of torrefaction on the characteristics of OPEFB pellets. Pellet torrefaction uses a rotary reactor tube, a device that performs torrefaction with a tube that rotates 360º on a support shaft with the help of a transformer. Torrefaction temperatures applied were 220°C, 240°C, and 260°C with 15, 25, and 35 minutes. Pellet testing includes changes in chemical composition. The results showed that the water content of the pellets decreased from 10.57% to 1.64%. The water absorption test also showed that the torrefaction pellets were more resistant to water, so it would be very beneficial when the pellets were stored in humid conditions. Torrefaction causes a decrease in cellulose content, hemicellulose, and an increase in lignin content. Torrefaction with reactor tubes can improve the quality of EPEFB pellets and increase the added value of the product.
Pengaruh Fermentasi Biji Kakao (Theobroma cacao L.) Terhadap Karakteristik Pengeringan Ansori, Ardy Setya; Waluyo, Sri; Haryanto, Agus; Tamrin, Tamrin
Jurnal Agricultural Biosystem Engineering Vol 1, No 1 (2022): Maret 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jurnal abe.v1i1.5800

Abstract

This research aims to analyze the effect of fermented cocoa beans on drying characteristics.  This research was conducted to examine the drying characteristics of unfermented cocoa beans and fermented cocoa beans.  Fermented cocoa was resulted from two difference levels of yeast as fermentation starter: 3 grams of yeast / 5 kilograms of cocoa and 5 grams of yeast / 5 kilograms of cocoa. As a control, unfermented cocoa beans were also done.  The fermentation chambers were designed with variations in the number of 10, 20 and 30 holes and 12 mm diameters.  The drying cocoa beans were set at a fixed temperature (60 ° C) and drying air velocity of 3.0 km / hour and the power used was 11.34 watts. The results showed that the use of yeast has significant effect on the quality of the dryed cocoa beans using LSD test at  a value of 5%.  Fermented cocoa using 3 grams yeast as starter and 10-holes chamber showed a better drying performances (moisture content and shrinkage).
Karakteristik Bahan Bakar Pelet Jerami Padi: Pengaruh Ukuran Partikel dan Penambahan Bekatul Triandini, Heryanti Nur; Haryanto, Agus; Rahmawati, Winda
Jurnal Agricultural Biosystem Engineering Vol 1, No 1 (2022): Maret 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jurnal abe.v1i1.5942

Abstract

Rice straw is a potential agricultural waste biomass for alternative energy sources in the form of pellets. This study aimed to determine the effect of particle size and the addition of rice bran on the characteristics of rice straw pellets. The study was arranged in a completely randomized design with two factors. The first factor was the particle size with four levels, namely P1 (passed a 25 mesh sieve), P2 (between 10 and 25 mesh), P3 (did not pass 10 mesh), and P4 (not sieved). The second factor was the addition of bran which consisted of B0 (0%), B1 (5%), B2 (10%), and B3 (15%). All treatment combinations were carried out with 3 replications. Parameters observed includeded moisture content, ash content, density, and pellet strength. Rice straw has a calorific value of 17.96 MJ/kg so it is potential as a fuel. The results showed that the particle size and the addition of rice bran significantly affected the parameters of moisture content, density, and pellet strength. Moisture content, density, and strength (durability) of pellets increased with decreasing particle size. The addition of rice bran showed inconsistent effects: it increased the strength of the pellets but decreased the density of the pellets. Good rice straw pellets were obtained from fine (passing 25 mesh) to medium (between 10 to 25 mesh) sized particles.
Pengaruh Volume Media Tumbuh Dan EC Nutrisi Terhadap Produktivitas Tanaman Melon (Cucumis melo L.) pada Hidroponik Sumbu Indah, Anne Nutri; Triyono, Sugeng; Tusi, Ahmad; Haryanto, Agus
Jurnal Agricultural Biosystem Engineering Vol 3, No 1 (2024): March 2024
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v3i1.8746

Abstract

The aim of the research was to study the effect of the volume of growth media and nutrient EC (Electrical Conductivity) on the yield and productivity of melon plants (Cucumis melo L.), using a hydroponic wick system.  This study employed a Randomized Complete Design (RCBD) with a factorial arrangement consisting of 2 factors.  First factor consisted of a 3 level growth medium volume per pot namely 5 liters (M1), 14 liters (M2), and 34 liters (M3).  The second factor was a 4 level nutrient EC, including 1.5 mS/cm (P1), 2.5 mS/cm (P2), 3.5 mS/cm (P3), and 4.5 mS/cm (P4).  Each treatment combination used 3 replicates to achieve 36 experimental units. The results showed that the treatment of the 34-liter growth media (M3) yielded high fruit weight of 1.40 kg and the highest water productivity of 37.90 kg/m³. The planting media volume treatment (M) significantly affected parameters namely stem diameter, fruit weight, sweetness level, fruit circumference, and water productivity, but not for other parameters. Meanwhile, the fertilizer EC treatment (P) significantly affected plant height, sweetness level, and fruit circumference, but not for other parameters.  If fruit weight is used as the criterion, the optimum choice was M3P1 (34 liter media volume and 1.5 mS/cm EC). Keywords: Electrical Conductivity, Hydroponics, Melon, Rice Husk Charcoal, Wick System.
Rancang Bangun Sistem Kendali Suhu pada Reaktor Torefaksi Menggunakan Mikrokontroler Telaumbanua, Mareli; Setiawan, Wahyu Hendi; Haryanto, Agus; Wisnu, Febryan Kusuma; Rahmawati, Winda; Lanya, Budianto
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 12 No 2 (2024): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jrpb.v12i2.669

Abstract

The increasing demand for energy causes a decrease in the availability of fossil fuels. Biomass from oil palm waste, namely empty oil palm bunches, can be used as an alternative fuel. The torrefaction process converts biomass into environmentally friendly biopellets with high added value. In this study, the calibration of the K-type thermocouple sensor was carried out using Arduino Uno and testing of the automatic pellet torrefaction tool from empty palm oil bunches. This study aims to develop an automatic control system for the pellet torrefaction tool. The design of the automatic torrefaction tool uses a microcontroller with a gas stove energy source. The dimensions of the support frame are the torrefaction tube (24 cm x 28 cm), the servo motor frame (15 cm x 9.5 cm) and the dynamo support frame (26 cm x 6.5 cm). The tool box is square (50 cm x 50 cm). The torrefaction tube has a volume of 2,826 cm3, a diameter of 15 cm and a height of 16 cm. The results showed that the system successfully reached a temperature of 300°C for 30 minutes from the initial temperature. The temperature accuracy test produced an average value of 92.12%. The stability of temperature control also proved to be quite good in achieving the specified setting point. The water content of torrefaction pellets at a temperature of 150-300°C was around 1-2%. The hydrophobicity of torrefaction pellets at a temperature of 250-300°C after being soaked for 24 hours had a clearer color and remained intact.
Co-Authors Agus Hariadi, Prasetiyo Ahmad Tusi Alrumeh, Abdullah Ansori, Ardy Setya Aprilliandi, Reza Ardiyanti, Siska Ema Arief Bakhtiar Darmawan, Arief Bakhtiar Budianto Lanya Cholik, Agus Cicih Sugianti Dewi Agustina Iryani, Dewi Agustina Erry Sumarjono Fadila, Nabila Dea Faisal Ibnu Febryan Kusuma Wisnu Fil'aini, Raizummi Fil’aini, Raizummi Hariono, Rudi Hendro Purnomo Indah, Anne Nutri khusnul khotimah Kinanti, Sekar Kiromah, Isrofiatul Kuncoro, Sapto Kurniawan, Ahmad Ridho Lutfi Wahyuni Manik, Triska Febiola Marcus, Patrice Kevin Mareli Telaumbanua Marisa Marisa Marotin, Fadli Maryono Maryono Mufarika mufarika, mufarika Mufidah, Zunanik Oktafri Oktafri, Oktafri Permatasari, Dea Pratama, Yuko Armandho Pratiwi, chaterina Janes Purnomo, Cahyo Eko Putri, Laily Rahmadani Ryantori Setiawan, Afid Fito Setiawan, Wahyu Hendi Simanjuntak, Fajar Agustus Siti Suharyatun So'emah, Eka Nur Sri Waluyo Sugeng Triyono Sugeng Triyono Sutra, Satya Muhammad Tamrin Tamrin Tiguna, Amril Hakim Triandini, Heryanti Nur Udin Hasanudin Usman , Inda Rowahita Wicaksono, Nugroho Hargo Winda Rahmawati Wisnu, Febrian Kusuma Yovana, Kesi Zuleika, Divia Laila