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All Journal International Journal of Renewable Energy Development Journal of Tropical Soils Jurnal Keteknikan Pertanian Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan agriTECH Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agricultural Biosystem Engineering

Sugeng Triyono

Universitas Lampung

Author-ID : 4408782

Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Other

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Aplikasi Kinetika Reaksi Pembuatan Biodiesel dari Minyak Jelantah Melalui Reaksi Transesterifikasi Basa Agus Haryanto; Ovita Yozana; Sugeng Triyono
Jurnal Keteknikan Pertanian Vol. 5 No. 3 (2017): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractThis study aims to determine parameters of first order kinetics of biodiesel production from used cooking oil through transesterification reaction with NaOH catalyst. Used cooking oil was obtained from fried food peddlers in Bandar Lampung. The transesterification reaction was carried out with 100 ml of waste cooking oil and 0.5 grams of NaOH at a molar ratio of 1:4 (oil:methanol). Treatment combinations of temperature (30oC, 40oC, 50oC, and 60oC) and reaction time (10, 20, 30, 40, 50 and 60 minutes) were performed to observe the resulting yield. Kinetic parameters were calculated with assumption that the transesterification is a first order reaction. Results showed that the reaction rate constant increased with temperature (i.e. k = 0.003 min-1at 30oC to 0.010 min-1 at 60oC). The value of activation energy for transesterification of used cooking oil was 30.69 kJ/mol.AbstrakPenelitian ini bertujuan untuk menentukan parameter kinetika reaksi orde satu pembuatan biodieseldari minyak jelantah melalui reaksi transesterifikasi dengan katalis NaOH. Minyak jelantah diperoleh dari penjual gorengan di Bandar Lampung. Reaksi transesterifikasi dilakukan dengan 100 ml minyak jelantah dan 0.5 gram NaOH pada perbandingan molar 1:4 (minyak:metanol). Kombinasi perlakuan suhu (30oC, 40oC, 50oC, and 60oC) dan lama reaksi (10, 20, 30, 40, 50, dan 60 menit) dilakukan untuk mengamati rendemen yang dihasilkan. Parameter kinetika dihitung dengan asumsi bahwa transesterifikasi adalah reaksi orde satu. Hasil penelitian menunjukkan bahwa konstanta laju reaksi meningkat seiring dengan bertambahnya suhu, yaitu k = 0.003 per menit pada suhu 30oC hingga k = 0.010 per menit pada suhu 60oC. Nilai energi aktivasi transesterifikasi minyak jelantah adalah 30.69 kJ/mol.

Energi Terbarukan dari Jerami Padi : Review Potensi dan Tantangan Bagi Indonesia Agus Haryanto; Siti Suharyatun; Winda Rahmawati; Sugeng Triyono
Jurnal Keteknikan Pertanian Vol. 7 No. 2 (2019): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

Straw is a waste produced from the threshing and harvesting of rice. So far, rice straw has only been removed. In fact, it can be used as a potential energy source. This paper aims to examine the potential of rice straw as a renewable energy source in Indonesia. Opportunities and challenges were evaluated based on extensive and in-depth literature review. The paper discussed rice straw potential, its characteristics and benefits of using straw energy. Technology to convert rice straw into energy was also discussed. Results showed that renewable energy potential of rice straw is 28.8 TJ/year. Conversion technologies that can be applied include densification, combustion, gasification, and biogas. The biggest challenge for using rice straw energy is collection and transportation. Densification may overcome density problem by producing high quality pellets or briquettes that reduce transportation and storage costs. Straw characteristics need to be improved to increase its combustion properties.

APLIKASI IRIGASI DEFISIT PADA PADI GOGO (Oryza sativa L.) VARIETAS INPAGO 9 made sudarmawan; RA Bustomi Rosadi; Sugeng Triyono
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 3 (2017)
Publisher : The University of Lampung

Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi irigasi defisit pada padi gogo (Oryza sativa L) varietas inpago 9. Penelitian ini dilaksanakan di dalam rumah plastik, laboratorium lapang terpadu, Universitas Lampung pada bulan November 2016 sampai dengan Maret 2017. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan empat taraf perlakuan, yaitu perlakuan ID1 ((0-20)-100)% AW,ID2 ((0-20)-80)% AW, ID3 ((0-20)-60)% AW, ID4 ((0-20)-40)% AW, dengan lima kali ulangan. Hasil penelitian menunjukkan bahwa, perlakuan irigasi defisit pada padi gogo (Oryza sativa L) varietas inpago 9 berpengaruh terhadap pertumbuhan tinggi tanaman, jumlah daun, jumlah anakan, jumlah malai, berat kering brangkasan atas, berat brangkasan bawah basah dan kering, dan gabah hampa. Perlakuan irigasi defisit pada padi gogo (Oryza sativa L) varietas inpago 9 tidak berpengaruh terhadap produksi tanaman padi gogo. Faktor tanggapan hasil terhadap air (Ky) menunjukan nilai Ky (Ky > 1). Hasil uji tanaman padi gogo, mengalami cekaman air yaitu pada perlakuan ID2 ((0-20)-80)% AW dan ID3 ((0-20)-60)% AW. Tanaman padi jika sensitif terhadap irigasi defisit produktivitas penggunaan air paling tinggi adalah ID1 ((0-20)-100)% AW dengan produktivitas rata-rata sebesar 0,78 gram/liter.Kata Kunci : irigasi defisit; fase tumbuh; padi gogo; produktivitas air tanaman.

PENGARUH PERBANDINGAN MOLAR DAN DURASI REAKSI TERHADAP RENDEMEN BIODIESEL DARI MINYAK KELAPA (Coconut Oil) Risa Inggit Pramitha; Agus Haryanto; Sugeng Triyono
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 3 (2016)
Publisher : The University of Lampung

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This study aims to determine the effect of the molar ratio of oil : methanol and duration of the reaction on theyield of biodiesel produced from palm oil transesterification. The transesterification reaction is carried outusing coconut oil at 60 °C and 0.5 grams of NaOH catalyst. The method is a completely randomized design witha combination of two factors, namely the molar ratio and the duration of the reaction. The molar ratio consistsof four levels (1: 3, 1: 4, 1: 5 and 1: 6), while the duration of the reaction is composed of three levels (15, 30, and60 minutes). Parameter observations include yield, density, and viscosity of biodiesel produced. Each unit ofexperiment was performed using 100 ml of coconut oil and each treatment was repeated three times. Theresults showed that duration factor significantly influence the yield and viscosity of biodiesel, while the molarratio factor significantly influence the viscosity of biodiesel. Interaction of these factors, however, do not affectparameters observed. The highest yield of biodiesel (75.56%) resulted within duration of 60 minutes andthe lowest (60.27%) on within duration of 15 minutes. Biodiesel produced has a density of 0.86 to 0.87 g/ml(complies SNI), and a viscosity of between 3.40 to 4.55 cSt

Implementation Of Automatic Hydroponic System Design For Shallot (Allium Ascalonicum L.) Cultivation And Cost Analysis Simulation Annisa Nur Rachmawaty; Sugeng Triyono; Siti Suharyatun; Mareli Telaumbanua
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 8, No 2 (2019): Juni
Publisher : The University of Lampung

Hydroponic shallot cultivation is one way to increase shallot production on marginal land. To support the cultivation, this research was designed that aimed to develop an automatic hydroponic system, simulation of cost analysis, and profit prediction on shallot cultivation.The study was conducted by arranging a hydroponic design with a height of 100 cm, length 3 m, and width of 60 cm. The growth media is made from husk charcoal with a depth of 15 cm.114 cloves of shallots are sown and moved after the buds develop about 5 cm, a distance of 10x15 cm. The research parameters included pH, EC, air content, and plant growth. Three scenarios of the hydroponics systems were simulated to elaborate cost and profit estimation. The three scenarios included scaling up the cultivation beds, ten year cultivation, and productivity from three types of hydroponics modules. The results showed that during hydroponics cultivation of shallot, EC of nutrient solution was elevated to the last level of 3106 μS/cm, while pH was found to be 7.58. The control system is able to activate the pump with 100% accuracy. The yield of the shallot was 0.0154 kg/m2 with average tuber diameter of 10-15 mm. This production was suboptimal, yet profit and cost comparisons could be clearly described through the simulations of three types of hydroponics modules. The results of the simulation of economic analysis, the highest B / C ratio obtained from the use of hydroponics on land is 1.53. Keywords: cost and profit analysis, hydroponics cultivation, nutrition solution, shallot

THE EFFECT OF AERATION ON BABY KAILAN (Brassica oleraceae var. Achepala) GROWTH IN FLOATING SYSTEM OF HYDROPONIC TECHNOLOGY INSIDE AND OUTSIDE THE GREENHOUSE Dian Krisnawati; Sugeng Triyono; M. Zen Kadir
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 3 (2014)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (412.491 KB)

This research is aimed to find out the effects of aeration on baby kailan (Brassica oleraceae var. Achepala ) infloating systemhidroponic technology inside and outside the greenhouse. This research used a factorial in a splitplot design with 2 factors, namely factor I (weation) and Factor II (aeration). The first factor had two levels,inside (N0) and outside (N1) greenhouse. The second factor consisted of 3 levels; mechanical aeration (A1),hanging styrofoam (A2) and floating styrofoam (A3); resulting in six treatment combinations with threereplications. The data was analyzed using ANOVA (analysis of variance) at 5%significant level and folowed byLSD. The results showed that the inside and otsutside greenhouse significantly affected growth and yield. The useof aeration outside the greenhouse had shownmaximal production. The hanging styrofoamsystem (A2) insidethe greenhouse showed the lowest production cost (fertilizer and electricity. None of the environment andnutrition parameters (EC, DO and pH) was significantly different during the research, implying that theenvironment and nutrion solutionwere homogeneous and did not affect the plant growth.

THE APPLICATION OF DRIP IRRIGATION SYSTEM ON CAULIFLOWER (Brassica Oleracea Var. Botrytis L. Subvar. Cauliflora DC) IN AGREENHOUSE Hendri - Yanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 2 (2014)
Publisher : The University of Lampung

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The research aimed to test performance of a drip irrigation system to irrigate cauliflower cultivated in a greenhouse. The drip irrigation system using emitter type regulating stick emitter as many 315. One Main pipe, one manifold, and four lateral pipes were from PE types with the diameter of 13 mm. The methods to deliver irrigation water were by using a small pump 13 Watt and by using gravitational pressure with head 155 cm. Variables observed were emission uniformity (EU), water requirement, plant growth, and water productivity. The results showed that Emission uniformities were 64,49 % for gravitational flow and 61,46 % for pumping flow. These values were still below recommended, that is 75 % - 85 %. The minimum, maximum, and mean reference evapotranspiration (ETo) were recorded as 5,80 mm/day, 9,70 mm/day, and 7,20 mm/day. Whilst crop evapotranspiration (ETc) at the day of 41 after planted was 3.2 mm/day. Average yield of cauliflower was 58 gram per plant, while water productivity was 0,87 gram/litter.Keyword: cauliflower, crop water requirement, drip irrigation, emitter, emission uniformity

PENGARUH DAYA LAMPU NEON TERHADAP PERTUMBUHAN TANAMAN PAK CHOI (Brassica rapa L.) PADA SISTEM HIDROPONIK INDOOR Ning Hartati Setiasih; Sugeng Triyono; Ahmad Tusi; Diding Suhandy
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 2 (2016)
Publisher : The University of Lampung

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The purpose of this research was to observe the influence of neon lamp power (watt) on the growth of Pak Choiin an indoor hydroponic system. This research was done by implementing several pots of Pak Choi planting undersome different treatments of lighting. The treatment consisted of neon lamp 20 watt (N1), neon 2 x 20 watt (N2),neon 40 watt (N3), neon 2 x 40 watt (N4) in a growth chamber and one treatment under the sun lighting (N0).The result of the research showed that the treatment of 2 x 40 watt neon lamp (N4) turned out to have the bestresult at all variables measured. Then, it was followed by treatment of neon 40 watt (N3) and the lowest result wasin neon 20 watt (N1). The highest biomass harvested was 35 g in N4, followed by 18 g in N3, then the 15 g in N2and 4 g in N1. However, the highest ash content was in the treatment of 20 watt neon lamp (N1), and followed byN2 (neon 2 x 20 watt). Although, Pak Choi grown under the sun ray has the highest biomass harvested, but it hadthe lowest mineral content.Keywords : Neon lamp, lamp power, Pak Choi, hydroponic wick system

PENGARUH SUHU DAN WAKTU REAKSI PADA PEMBUATAN BIODIESEL DARI MINYAK JELANTAH Shilvia Vera Sinaga; Agus Haryanto; Sugeng Triyono
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 1 (2014)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (800.594 KB)

This study aimed to utilize waste cooking oil as raw material for biodiesel production and to study the influence of time and temperature of the transesterification reaction on the biodiesel production and its characteristics. The study was conducted by base transesterification with NaOH at a molar ratio of waste cooking oil to methanol 1:6. A combination of three levels of temperature (45⁰C, 55⁰C and 65⁰C) and three levels of reaction time (5 minutes, 10 minutes, and 30 minutes) was performed. Each treatment was conducted with 3 replications. The results showed that the yield of biodiesel was affected by temperature and reaction time. The optimum treatment combination was transesterification at temperature of 65⁰C and 30 minutes of reaction time, which produced 72,87 % methyl ester with a density of 0,85 g/ml, viscosity of 1,65 cSt and acid number of 0,07 %. Although the density and acid number of biodiesel produced met the biodiesel quality standards of Indonesia (SNI), it was not recommended to be used as fuel engine. Keywords: Biodiesel, waste cooking oil, transesterification, temperature and reaction time.

Effect of Coconut Shell Biochar Application on the Effectivity of NPK Fertilizer in Red Onion (Allium ascalonicum L.) Cultivation Agata Desinta Yoanma; Agus Haryanto; Oktafri Oktafri; Sugeng Triyono
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 11, No 1 (2022): March
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i1.1-14

Shallot cultivation in Lampung faces challenges because the land is dominated by ultisol soils, which have low nutrients. Therefore, soil improvement materials such as biochar and fertilizers are needed. This study aims to determine the effect of coconut shell biochar addition on the effectiveness of NPK fertilizer in the production of shallots. The study was arranged in a Factorial Completely Randomized Design consisting of 2 factors, namely the dose of biochar (0, 40, 80, and 120 g/pot) and the dose of NPK fertilizer (0, 0,8, 1,6, and 2,4 g/pot). Each treatment combination was repeated 3 times. Parameters included soil characteristics (pH, soil volume shrinkage) and plant parameters (plant height, number of leaves, canopy area, buld number and diameter, evapotranspiration, fresh root weight, bulb air dry weight, and water productivity. The results showed that coconut shell biochar had a significant effect (α = 0.05) in increasing soil pH and decreasing soil shrinkage. The dose of biochar 80 g/pot (B2) with a dose of NPK 1.6 g/pot (N3) was the best treatment. In this treatment combination, shallots produced an average weight of 120.54 g/pot of fresh stover, 14 bulbs with diameter of 2.05 cm and air dry bulb weight of 70.17 g/pot, and the water productivity of 18.22 kg/m3. Keyword: Canopy area, Fertilizer dose, pH, Soil shrinkage, Water productivity

Co-Authors . Dermiyati . Dermiyati Agata Desinta Yoanma Agus Haryanto Agus Haryanto Agus Haryanto Agus Karyanto Agustin, Stefani Silvi Ahmad Tusi Ahmad Tusi Ainin Niswati Annisa Nur Rachmawaty Budianto Lanya Dea Gusti Dini Alhadi Debby Agsari Diding Suhandy Disca Anggi Pratiwi Dwi Cahyani Dwi Haryono Iis Marlina Irwan Sukri Banuwa Jamalam Lumban Raja Jamalam Lumbanraja M. Zen Kadir made sudarmawan Mareli Telaumbanua Marotin, Fadli Mirwan Saputro Muhammad Amin Mulyani, Yessi Murdapa, Fauzan Ning Hartati Setiasih Nomi Setyowati Nugroho Haryono Nugroho Haryono Nyang Vania Ayuningtyas Harini Oktafri Oktafri Oktarina Maulida Ovita Yozana R.A. Bustomi Rosadi RA Bustomi Rosadi Risa Inggit Pramitha Rodiyanti Rodiyanti Shilvia Vera Sinaga Sigit Prabawa Sisi Agustin Siti Suharyatun Sukron Mahmud Titin Yulianti Udin Hasanudin Ully Silviana Wicaksono, Nugroho Hargo Winda Rahmawati Winda Rahmawati

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