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Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Published by Universitas Lampung
ISSN : 2302 559X     EISSN : 2549 0818     DOI : -
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Engineering
Jurnal Teknik Pertanian Lampung or Journal of Agricultural Engineering (JTEP-L) is a peer-reviewed open-access journal. The journal invites scientists and engineers throughout the world to exchange and disseminate theoretical and practice-oriented researches in the whole aspect of Agricultural Enginering including but not limited to Agricultural Mechanization, Irrigation, Soil and Water Engineering, Postharvest Technology, Renewable Energy, Farm Structure, and related fields. The first issue was published in October 2012 by Department of Agricultural Engineering, Faculty of Agriculture, University of Lampung. Jurnal Teknik Pertanian Lampung has ISSN number 2302 - 559X for print edition on October 10, 2012 then 2549 - 0818 for online edition on January 10, 2017. Jurnal Teknik Pertanian Lampung is issued periodically four times a year in March, June, September, and December. Jurnal Teknik Pertanian Lampung has been indexed by Google Scholar, Crossref, Directory Open Access Journals (DOAJ), and CABI. Since Volume 5 Issue 1 (2016) Jurnal Teknik Pertanian Lampung has been accredited as SINTA 3 by Directorate General of Higher Education (DIKTI). Starting Volume 10 Issue 3 (2021) the journal received accreditation SINTA 2.
Arjuna Subject : -
Articles 16 Documents
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Search results for , issue "Vol 10, No 3 (2021): September" : 16 Documents clear
Unjuk Kerja Mesin Pemanen Padi (Oryza sativa) Kombinasi Mini (Mini Combine Harvester) Mochamad Zakky; Joko Pitoyo; Adi Prayoga
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.303-308

Abstract

Mini combine harvester is a modern machine used for cutting rice, threshing and cleaning grain while walking in the field. This machine helps farmers where, time and energy to harvest more efficiently and does not require a large amount of labor like traditional (manual) harvesting. This study aimed to calculate and determine the working capacity of the mini combine harvester machine and calculated the work efficiency of the mini combine harvester machine. The method used in this research was experimental using a mini combine harvester type Yanmar model YH150 with Ciherang 32 rice varieties ready to harvest. The results of this study indicated that the effective field capacity is 0.125 ha/hour or 8.028 hour/ha, while the theoretical field capacity was 0.234 ha/hour so that the field efficiency is 53.23%. Keywords: field efficiency, field capacity, rice, mini combine harvester
Evaluasi Termal Vertical Greenery System Tipe Green Facade pada Dinding Bangunan Muhammad Haviz; Muhammad Taufik Toha; Riman Sipahutar; Oki Alfernando
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.296-302

Abstract

Increasing of ambient temperature due to global warming has a direct impact on increasing the room temperature. Heat from surrounding is transferred to building wall and room. By installing the Vertical Greenery System (VGS) on the building wall, it can be an alternative for heat absorber and eco-friendly indicator. The aims of this study are to determine the temperature that can be reduced by VGS type Green Façade (GF) and  achieve the energy consumption reduction because of GF installation.  GF is installed on the building wall, property of Mining Engineering Department, Sriwijaya University, to measure its temperature, then compare it with the  temperature on control wall. The results showed that the GF can reduce the room temperature up to 1,2oC, compared to the control wall and the average is 0,3oC. The decrease in average temperature causes a decrease in energy consumption due to the use of air conditioners by 1.56-1.92%. Keywords: global warming, green facade, thermal evaluation, vertical greenery system
Dampak Perubahan Curah Hujan Terhadap Tingkat Kerentanan Erosi Tanah Di Sub DAS Merawu, Jawa Tengah Donnie Koes Nugraha; Bayu Dwi Apri Nugroho; Chandra Setyawan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.356-366

Abstract

This research was held to estimate rainfall and change in soil erosion vulnerability from 2020 to 2050 in Merawu Sub-Watershed, Banjanegara District with RCP 2.6, 4.5 and 8.5. The RCP is an overview of the concentration trends for greenhouse gases, aerosols and land use change created by the climate modeling community. Rainfall prediction was generated from SDSM Software and combined with USLE to predict soil erosion in ArcGIS 10.4. Changes in rainfall intensity are an important factor in changes of soil erosion rates because the kinetic energy of falling rainwater can cause soil erosion.The results showed rainfall in Banjarnegara Station at 2020-2050 with RCP 2.6,4.5 and 8.5 were increasing by +0,26%; +0,60%; +0,52%, while in Kalisapi Station were decreasing by -1,54%; -1,65% dan -2,20%. The change of soil erosion vulnerability prediction showed that soil erosion in Sub-DAS Merawu at 2020-2050 with RCP 2.6,4.5 and 8.5 in very light category were -0,02%;-0,02%;-0,03%, light category were -0,17%;-0,17%;-0,17%, moderate category -0,05%;-0,05%;-0,04%, heavy category -0,26%;-0,35%;-0,37%, and very heavy category were +1,46%;+1,88%;+1,95%. While the average soil erosion prediction at RCP 2.6, 4.5 and 8.5 were +0,86, +1,19% and +1,03%, respectively.  Keywords: soil erosion prediction, rainfall prediction, SDSM Software, Sub-DAS Merawu
Pengaruh Jenis Aktivator Adsorben Abu Boiler Pabrik Kelapa Sawit Terhadap Mutu Minyak Sawit Mentah Ika Ucha Pradifta Rangkuti; Heri Purwanto; Hilda Sry Utami Pohan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.351-355

Abstract

Palm oil mill boiler ash is one of the substances that can be used as an adsorbent. The adsorbent can absorb certain components of a fluid phase, which before being applied needs to be activated using chemicals so that the effectiveness of the absorption is increasing. The use of adsorbents in CPO is quite effective in maintaining its quality. Several previous studies have studied the application of adsorbents in maintaining the quality of CPO. The purpose of the study was to utilize palm oil mill boiler ash as an adsorbent of several types of activators and to determine the effect of effective activator types in application to the quality of CPO oil. This study used a non-factorial completely randomized design with adsorbent activation treatment using H3PO4 and NaCl with a concentration of 10% and soaked for 24 hours. There are 3 parameters observed in the adsorbent application to CPO, namely free fatty acids, water content, and dirt content. The results showed that the adsorbent activated with H3PO4 was an effective adsorbent with a decrease in its free fatty acids up to 0.43%, water content decreased to 0.07%, but an increase in CPO impurities content of 0.24%. While the adsorbent activated using NaCl showed free fatty acids 0.22%, water content decreased by 0.03% and dirt content also increased by 0.24%. Keywords:   adsorbent activator, crude palm oil, boiler ash, H3po4, Nacl
Respon Pupuk Fosfat dan Silika Terhadap Pertumbuhan Padi Hitam (Oryza sativa L. Indica) Amran Jaenudin; Iman Sungkawa; Nengsih Nengsih; Maryuliyanna Maryuliyanna
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.274-282

Abstract

Black rice produces black rice which contains a lot of nutrients for the body, but there is still not much research done in increasing the growth and productivity of black rice. The purpose of this study was to determine the level of increase in the productivity of black rice after the addition of phosphorus and silica fertilizers to black rice varieties. The experimental location is in Palir Village, Tengah Tani District, Cirebon Regency with a height of four 9 m above sea level. The type of soil in the experimental location was alluvial with a pH of 6. The experiment was carried out in March-August 2019. This experiment used a factorial RAK consisting of SP36 (P) fertilizer dosage and SipadiHS (S) Silica fertilizer dosage. The dosage of SP36 (P) fertilizer consists of P1 (50 kg ha-1) P2 (100 kg ha-1) and P3 (150 kg ha-1) while the dosage of SipadiHS (S) silica fertilizer consists of S0 (without silica), S1 (100 kg ha-1), S2 (200 kg ha-1) and S3 (200 kg ha-1). The results showed that there was an interaction with the variable height growth of plants aged 56 DAS in P2S3 and P3S3 treatments and the number of tillers 56 DAS in P2S1 treatment. Meanwhile, phosphate and silica treatments independently affected the observations of plant height at the age of 28 DAS and 42 DAS, Shoot Root Ratio at 42 DAS and 56 DAS. Keywords: black rice, SP36, Silica SipadiHS
Implementasi Monitoring Suhu dan Kelembaban pada Budidaya Jamur Tiram dengan IOT Yuli Wibowo; Febriansah Eka Prasetyadana; Bertung Suryadharma
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.380-391

Abstract

Oyster mushroom commodity has been widely used as raw material for processed food products, monitoring of temperature and humidity intensively, the quality will be well maintained. Monitoring at Rumah Jamur Barokah full 24 hours, so it will be difficult if done manually. This is the reason why it is necessary to design monitoring tools in maintaining the ideal temperature and humidity with the concept of the Internet of Things. This research aims to design temperature and humidity monitoring tools (IoT), and how much the increase value of time efficiency and effectiveness after the tool is implemented. The blackbox testing method is performed for performance feasibility testing, by comparing thermo-hygrometers and sensors. The result of the tool performance test at the temperature parameter obtained an error value 0.33 0C and the DHT22 tolerance limit ± 0.5 0C. In the humidity parameter obtained an error of 1.8% RH and the DHT22 tolerance limit ± 2% RH, so the DHT22 sensor feasible to use. In the analysis of efficiency calculation obtained a result of 77.95% for improved time efficiency. In the analysis of the quality effectiveness value of oyster mushrooms is less than ideal, getting an increase in value by 143% to 163%. Keywords: blackbox testing, cultivation, internet of things (iot), monitoring, oyster mushroom
Disain dan Uji Kinerja Pendingin Evaporatif Tipe Aliran Searah Menggunakan CFD (Computational Fluid Dynamics) Hikmah Yuliasari; Kavadya Syska; Ropiudin Ropiudin
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.338-350

Abstract

 After harvesting, fruits will change due to physiological, physical, chemical, and microbiological influences, and they are living materials. Therefore, it is necessary to know how to harvest and handle fresh fruits and their storage conditions to handle the fruits after harvesting so that the quality of the products can be maintained. One of the first treatments in the fruit cold chain is evaporative cooling. In order to get an evaporative cooling system that has an even temperature distribution, it is necessary to make a spatial model when designing an evaporative cooling system using CFD (Computational Fluid Dynamics). The objectives of this research are: (1) design of direct flow type evaporative cooling systems and (2) test the performance of direct flow type evaporative coolers. This research method uses design methods, experiments, and computer simulations. The results showed the performance of the evaporative cooler system in the scenario with the roof on, the highest effectiveness value was 1.198, the highest approximation value was 2.832, and the highest range value was 4.589. In the scenario without a roof on the evaporative cooler system, the highest effectiveness value was 1.767, the highest approach value was 2.139, and the highest range value was 4.835. The CFD analysis in the scenario with a roof had the highest temperature value of 25.9 ° C and the lowest temperature of 21.9 ° C, while the CFD analysis in the scenario without roof had the highest temperature of 23.7 ° C and the lowest temperature of 20.4 ° C. Keywords: CFD, direct flow type,  evaporative cooler, quality, fruit
Modifikasi Proses Pengolahan Kopi Arabika Menggunakan Metode Honey Process Hazfri Dalimunthe; Dina Mardhatilah; Maria Ulfah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.317-326

Abstract

The amount of mucilage can be adjusted according to the washing intensity. The level of ripeness of the coffee fruit is also directly proportional to the mucilage constituent components. Optimally ripe coffee cherries have a higher sugar, protein, lipid and water content than raw coffee cherries. So that research is needed to determine the effect of washing intensity and level of ripeness of coffee cherries on the characteristics of the resulting taste of coffee. The research design used was a complete two-factor block design. The first factor is the intensity of washing mucilage that sticks to the surface of the coffee beans; 2 times washing, 1 time washing, without washing. The second factor is the level of ripeness of the coffee cherries; raw coffee cherries, optimally ripe coffee cherries, past ripe coffee cherries. The analyzes were carried out, namely water content, ash content, total sugar content, pH value, Brix, and organoleptic test using the SCAA cupping method. The results of this study indicate that washing intensity affects the Brix value, water content, total sugar content, and pH. Whereas in the second factor, the level of ripeness of the coffee fruit affects the Brik value, water content, total sugar content, and pH. This study also showed that there was a correlation between washing intensity and the level of ripeness of the coffee cherries and the preference of the panelists. The non-washing treatment (black honey) and the optimal level of ripeness were the most preferred by the panelists, all coffees produced from this study met SNI 01-3542-2004. Keywords: arabica characteristics, honey process, maturity level, washing intensity
Pengolahan Bekatul dan Spirulina Menjadi Cookies Kaya Protein Diki Danar Tri Winanti; Susilawati Susilawati; Zulferiyenni Zulferiyenni
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.309-316

Abstract

The rice bran and spirulina are Indonesia's local product that have high nutritional content. Their postharvest with processed it to cookie hoped to enhance diversification of rice bran and spirulina in order to increase people's nutritional intake. The purpose of the study was to study the postharvest of rice bran and spirulina to cookies with rich of protein. This research used Completely Randomized Design (CRD) method and the advanced test Duncan Multiple Range Test (DMRT) with four treatments of cookies was 13.3%, 11.1%, 8.8%, and 6.6% rice bran. The analysis used proximate tests (water content, proteins, fat, and ash) and hedonically sensory tests (color score, aroma, taste, texture, and overall acceptance). The best cookies were 11,1% concentration of rice bran. Their chemical properties were 3.34% water content, 7.26% protein, 37.2% fat, and 47.01% carbohydrates that have filled up the National Standart of Indonesia (SNI) of biscuits whereas ash content 4.31% exceeds the maximum limit. The sensory characteristics of coockie was neutral color, neutral aroma, rather fond taste, liking texture, and overall like. Keywords:   cookies, rice bran, sensory test, spirulina
Pendugaan Umur Simpan Bubuk Kopi Arabika Menggunakan Metode Arrhenius dengan Kemasan Aluminium Foil dan Plastik (Polipropilen) Elida Novita; Dian Purbasari; M. Syahrul Munir Mubarok
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.392-401

Abstract

The storage method is one way to maintain coffee quality. Storage with aluminum foil and plastic (PP) packaging is an effective and safe technology to protect coffee grounds. Specialty coffee powder cannot be accepted if the organoleptic score is below 80, for that it is necessary to estimate the shelf life. This study aims to analyze the quality degradation of Bondowoso arabica coffee powder based on specialty standards using the SCAA protocol during storage with aluminum foil packaging and compare it with plastic packaging (PP) and estimated the shelf life of Bondowoso arabica ground coffee products based on flavor value parameters using the arrhenius method. Coffee powder quality degradation with plastic packaging (PP) is faster than aluminum foil packaging. This is because plastic packaging on the fourth day with a temperature of 40°C is not meet specialty standards. The greater the temperature used, the greater the decrease in quality. The shelf life of coffee powder uses aluminum foil packaging, which is 3 days at 40°C, 2 days at 50°C, and 1.3 days at 60°C. Whereas with plastic packaging (PP), the shelf life is shorter, which is 2 days at 40°C, 1.2 days at 50°C and 1 day at 60°C. Keyword: accelerated Shelf-Life Testing (ASLT), aluminum foil, arabica coffee, packaging, shelf 

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