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Rona Teknik Pertanian
Published by Universitas Syiah Kuala
ISSN : 20852614     EISSN : 25282654     DOI : -
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Engineering
JRTP is the official journal from the Department of Agricultural Engineering, Faculty of Agriculture, Syiah Kuala University (Unsyiah), Banda Aceh-Indonesia. It covers and devotes a complete and interdisciplinary wide range of research and review in engineering applications for agriculture and biosystems: agricultural machinery, soil and water engineering, tillage, precision farming, post-harvest technology, agricultural instrumentation, sensors, bio-robotics, systems automation, processing of agricultural products and foods, quality evaluation and food safety, audit energy, waste treatment and management, environmental control, energy utilization agricultural systems engineering, bio-informatics, computer simulation, farm work systems, mechanized farming and ergonomi.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 207 Documents
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Studi Perbandingan Perilaku Dalam Reaktor Kolom Gelembung Secara Non-Katalitik Dengan Simulasi CFD Terhadap Kadar ME Biodiesel Angga Defrian; Zulfakri Zulfakri
Rona Teknik Pertanian Vol 13, No 1 (2020): Volume 13, No. 1, April 2020
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v13i1.15911

Abstract

Abstrak. Biodiesel dihasilkan melalui reaksi transesterifikasi atau reaksi esterifikasi asam lemak bebas dan tergantung dari kualitas minyak nabati yang digunakan sebagai bahan baku. Teknologi produksi biodiesel memiliki 2 metode yaitu metode katalis dan non katalis. Salah satu metoda produksi biodiesel tanpa katalis adalah metoda superheated methanol vapor (SMV). Namun metode inimenghasilkan kadar biodiesel yang rendah dari SNI. Salah satu cara untuk meningkatkan kadar biodiesel dengan meningkatkan luas kontak permukaan antara gelembung metanol dengan minyak. Hal ini dilakukan dengan memberikan perforated plate (obstacle) di dalam kolom reaktor. Perancangan desain obstacle sangat mempengaruhi luas kontak permukaan antara metanol uap dan minyak. Beberapa jenis obstacle yang dirancang di simulasikan dengan metode Computational Fluid Dynamics (CFD), karena CFD dapat menggambarkan distribusi gelembung di dalam kolom reaktor, sehingga pembuatan obstacle dapat lebih tepat dan memudahkan menganalisa perilaku gelembung di dalam kolom reaktor. Hasil simulasi di-dapatkan luas kontak permukaan yang tertinggi menunjukkan desain obstacle A-4 dengan nilai sebesar 0.013635 m2/det. Namun kadar metil ester pada obstacle tersebut masih rendah dibandingkan dengan SNI yaitu sebesar 67.73% (w/w). Untuk kadar metil ester yang mendekati SNI adalah obstacle D-4 yaitu 94.55 % (w/w).Comparative Study Of Behavior In Non-Catalytic Bullet Column Reactors With CFD Simulation on Content me biodieselAbstract. Biodiesel is produced through transesterification reaction triglycerides or esterification of free fatty acids depending on the FFA content of the feedstock. The reaction normally requires a catalyst, even though the non-catalytic reaction has attracted significant attention recently. One of the non-catalytic method by using superheated methanol vapor (SMV). However, this method still has a low reaction rate and thereby needs to be improved by increasing the surface contact area between methanol vapor and oil. In this study, the utilization of a perforated plate (obstacle) in the reactor column was studied using computational fluid dynamics (CFD).  Several types of obstacles were designed and their influence on the reaction rate was evaluated through CFD simulation. The result shows that obstacle design A4 gave the highest contact surface (0.013635 m2/s), even though methyl ester concentration in the reaction product is still low (67.73 %w/w). For methyl esters which are close to SNI is design obstacle D-4, which is 94.55 %(w/w).  
Evaluasi Pengaruh Rehabilitasi Lahan Dan Hutan Terhadap Koefisien Aliran Tahunan Di Sub Das Krueng Meuleusong Herry Andrisa; Hairul Basri; Muhammad Rusdi
Rona Teknik Pertanian Vol 14, No 2 (2021): Volume 14, No.2, Oktober 2021
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v14i2.21994

Abstract

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh rehabilitasi lahan dan hutan (RHL) terhadap nilai koefisien aliran tahunan (KAT) di sub-DAS Krueng Meulesong. Pelaksanaan RHL di Desa Riting Kecamatan Indrapuri Kabupaten Aceh Besar yang termasuk dalam DAS Krueng Meuleusong dikategorikan tidak berhasil berdasarkan citra satelit perubahan tata guna lahan tahun 2009, 2014, 2017 dan 2019. Hasil interpretasi citra satelit menunjukkan penurunan luasan hutan sekunder, namun luas perdu dan sabana meningkat. Berdasarkan hasil uji korelasi menunjukkan bahwa pelaksanaan kegiatan RHL tidak berpengaruh terhadap perubahan penggunaan lahan menjadi hutan sekunder dan kegiatan RHL tidak berpengaruh terhadap nilai koefisien aliran tahunan (KAT) di Sub-DAS Krueng Meuleusong.Evaluation Of The Effect Of Land And Forest Rehabilitation On Annual Flow Coefficient In Krueng Meuleusong Sub-WatershedAbstract. This study aims to determine the effect of land and forest rehabilitation (RHL) on the value of the annual flow coefficient (KAT) in the Krueng Meulesong sub-watershed. The implementation of RHL in Riting Village, Indrapuri District, Aceh Besar District which is included in the water catchment area of the Krueng Meuleusong sub-watershed is categorized as unsuccessful based on satellite imagery of 2009, 2014, 2017 and, 2019 of land-use change. The results of satellite imagery interpretation showed a decrease in the area of secondary forest, but shrubs and savanna area had increased. Based on the results of the correlation test, shows that the implementation of RHL activities has no effect on changes in land use to secondary forests and RHL activities have no effect on the value of annual flow coefficient (KAT) in the Krueng Krueng Meuleusong sub-watershed.
Isolasi Dan Karakteristik Fungi Lignoselulolitik Dari Limbah Sawit Sebagai Agen Pendegradasi Pakan Berserat Yunilas Yunilas; Lili Warly; Yetti Marlida; Irsan Ryanto
Rona Teknik Pertanian Vol 12, No 2 (2019): Volume 12, No. 2, Oktober 2019
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v12i2.10112

Abstract

Abstrak. Penelitian ini bertujuan untuk mengisolasi dan mengkarakteristik fungi lignoselulolitik dari limbah sawit sebagai pendegradasi serat (senyawa polisakarida). Penelitian ini menggunakan metode eksplorasi melalui isolasi, karakteristik, uji degradasi lignoselulosa dan identifikasi. Isolasi menggunakan medium selektif yang dimodifikasi mengandung carboxy methyl cellulose (CMC), xylan, lignin dan manan. Dari hasil isolasi diperoleh 16 isolat fungi lignoselulolitik dan 4 diantaranya memiliki kemampuan tinggi dalam mendegradasi lignoselulosa yaitu isolate fungi YLF2, YLF3, YLF4 dan YLF8. Isolat fungi yang diperoleh memiliki karakteristik yang bervariasi meliputi bentuk, permukaan, tepi dan warna koloni. Hasil uji degradasi (hidrolitik) menunjukkan bahwa isolat fungi YLF8 menghasilkan indeks hidrolitik lebih tinggi dibanding fungi lainnya. Berdasarkan hasil dapat disimpulkan bahwa isolat fungi YLF8 termasuk pada strain Trichoderma sp berpotensi sebagai isolat pendegradasi serat dan dapat digunakan sebagai bioktivator dalam fermentasi pakan berserat.Isolation And Characteristic Of Lignocellulolitic Fungi Of Palm Waste As a Fiber Feed Degrading AgentAbstract. This study aims to isolate and characterize lignocellulolytic fungi from palm wastes as fiber degradation (polysaccharide compounds). This research uses exploration method through isolation, characteristic, lignocellulosic degradation test and identification. Isolation using modified selective medium contains carboxy methyl cellulose (CMC), xylan, lignin and manan. From isolation result obtained 16 isolates of lignocellulolytic fungi and 4 of them have high ability in degrading lignocellulose that is fungi YLF2, YLF3, YLF4 and YLF8. The obtained fungi isolates have varying characteristics including shape, surface, edges and colony color. The result of degradation test (hydrolytic) showed that YLF8 fungi isolates yielded higher hydrolytic index than other fungi. Based on the results it can be concluded that the isolates of YLF8 fungi belong to the Trichoderma sp strain potentially as fiber degrading isolates and can be used as bioctivators in fibrous fermentation feed. 
Rancang Bangun dan Uji Performansi Alat Penyiang Gulma pada Tanaman Kacang Tanah Muhammad Dhafir; Andriani Lubis; Cut Zakiyya
Rona Teknik Pertanian Vol 4, No 1 (2012): Volume 4, No. 1, April 2012
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v4i1.32060

Abstract

Weeds were plants whose presence was undesirable because it lowered the yield of agricultural land that could be achieved by the production plant. Weeding the groundnut crop had been done conventionally, weeding method had many drawbacks. The purpose of this research was to design, fabricate and per-formance test of the weed clean device on peanut plants. The results showed that the dimensions of the weed clean device was 1332 mm long, connecting rods were made of pipe with a diameter of I inch, wide handlebars 732 mm diameter, wheel steering handlebars handheld was 48 mm, wheelbase was 150 mm steel, blade was made of steel plate 2 mm with a length of 250 mm and a width of 20 mm. The strength and durability of the weed clean device were met because the stress permis (131 MPa) was greater than the stress occurred (16.9 Mpa). From the obtained performance test of weed clean device capacity was 16 hours /ha, better than weeding manually, 90 hours /ha.
Rancang Bangun dan Uji Kinerja Alat Separator Minyak Atsiri Skala Laboratorium Kapasitas 25 Literrs Budi Hariono; Syamsiar Kautsar; Aulia Brilliantina; Risse Entikaria Rachmanita; Mokhamad Fatoni Kurnianto
Rona Teknik Pertanian Vol 16, No 2 (2023): Volume No. 16, No. 2, Oktober 2023
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v16i2.27919

Abstract

Abstrak. Separator merupakan alat pemisah minyak atsiri dari air destilat pada proses penyulingan minyak atsiri. Perancangan separator disesuaikan dengan berat jenis minyak atsiri yang akan diproses. Tujuan dari penelitian ini adalah melakukan desain dan uji kinerja alat separator minyak atsiri skala laboratorium kapasitas 25 liter secara gravitasi dengan laju destilat sebesar 4.0 – 4.5 L/jam. Hasil uji fungsional menunjukkan komponen separator berfungsi secara baik sesuai dengan fungsinya baik secara individu maupun dalam rakitan mesin. Proses pemisahan dilakukan dengan cara mengalirkan campuran minyak dan air ke dalam separator dengan debit 4.0 – 4.5 L/jam menggunakan pompa aquarium.Hasil rendemen diperoleh nilai berkisar antara 0.82 – 0.88% pada volume minyak yang ditambahkan mulai dari 100 – 150 mL. Artinya diperoleh volume minyak yang masih tertinggal diseparator berkisar antara 18 – 20 mL. Bila waktu pemisahan diperpanjang hingga 12 jam maka akan diperoleh minyak yang tertinggal berkisar 2-5 mL. Manufacture and Performance Test of Laboratory Scale Essential Oil Separator Equipment with a Capacity of 25 LitersAbstract. The separator is a means of separating essential oils from distilled water in the essential oil refining process. The design of the separator is adjusted to the specific gravity of the essential oil to be processed. The purpose of this study was to test the performance of a laboratory scale essential oil separator with a capacity of 25 liters by gravity with a distillate rate of 4.0 – 4.5 L/hour. The results of the functional test show that the separator components function properly according to their functions, both individually and in machine assembly. The separation process is carried out by flowing a mixture of oil and water into the separator with a discharge of 4.0 – 4.5 L/hour using an aquarium pump. The yield results obtained values ranging from 0.82 to 0.88% in the volume of oil added from 100 to 150 mL. This means that the volume of oil that is still left in the separator ranges from 18 to 20 mL. If the separation time is extended to 12 hours, the remaining oil will be in the range of 2-5 mL.  
Analisis Kecepatan Aliran Fluida terhadap Kinerja Kolektor Surya yang Bergerak Mengikuti Posisi Matahari Feby Nopriandy; Suhendra Suhendra
Rona Teknik Pertanian Vol 12, No 1 (2019): Volume 12, No. 1, April 2019
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v12i1.12229

Abstract

Abstrak. Metode pengeringan menggunakan surya sebagai sumber energi panas adalah metode pengeringan yang banyak digunakan. Besarnya panas yang dihasilkan tergantung dari jumlah radiasi matahari yang dapat ditangkap oleh kolektor surya. Tangkapan radiasi matahari dapat dioptimalkan dengan merekayasa kolektor surya yang dapat bergerak mengikuti posisi matahari. Kualitas produk pangan yang dikeringkan sangat dipengaruhi oleh aliran udara panas pada proses pengeringan. Berdasarkan permasalahan tersebut, perlu dilakukan kajian tentang aliran udara panas pada kolektor surya yang bergerak mengikuti posisi matahari. Penelitian menggunakan 2 buah kolektor surya yang direkayasa dengan ukuran, bentuk dan bahan yang sama dimana salah satu kolektor berada dalam kondisi tetap dan kolektor lainnya dapat bergerak mengikuti posisi matahari. Kecepatan aliran udara panas yang keluar dari saluran keluar (outlet) kolektor surya divariasikan menjadi 3 perlakuan yaitu 2 m/s, 4 m/s dan 6 m/s. Pengambilan data dimulai dari pukul 08.00 sampai pukul 16.00 dengan selang waktu pengambilan data adalah setiap 30 menit. Hasil analisis menunjukkan bahwa kecepatan udara panas pada outlet kolektor surya sangat berbeda nyata pengaruhnya terhadap nilai temperatur udara panas di dalam dan outlet kolektor surya. Kolektor surya yang bergerak mengikuti posisi matahari dapat meningkatkan performansi temperatur di dalam dan outlet kolektor surya pada berbagai kondisi kecepatan udara outlet berbanding kolektor surya tetap. Kenaikan performansi tertinggi di dalam dan outlet kolektor surya diperoleh pada kecepatan udara outlet 2 m/s masing-masing sebesar 16,29% dan 3,98%.  Analysis of Fluid Flow Speed on Solar Collector Performance which Moves to follow the Position of the Sun Abstract. The drying method using solar as a source of heat energy is a widely used drying method. The amount of heat produced depends on the amount of solar radiation that can be collected by solar collector. The capture of solar radiation can be optimized by construction the solar collector that can move in the sun's position. The quality of dried food products is strongly influenced by the flow of hot air in the drying process. Based on these problems, it is necessary to study the flow of hot air in solar collectors that move in the sun's position. The study used 2 units of solar collector that construction with the same size, shape and material where one of the collectors is in a fixed condition and the other collector can move in the sun's position. The velocity of hot air flowing out of the outlet of the solar collector was varied into 3 treatments, namely 2 m/s, 4 m/s and 6 m/s. Data collection starts at 8:00 a.m. until 16:00 p.m. with an interval of data collection is every 30 minutes. The results of the analysis show that the hot air velocity at the solar collector outlet has a very different effect on the temperature value of hot air inside and the solar collector outlet. Solar collector that move in the sun's position can increase the temperature performance in and solar collector outlets in various conditions of outlet air velocity. The highest increase in performance in and solar collector outlets was obtained at outlet air velocity of 2 m / s at 16.29% and 3.98% respectively.
Evaluation of Land Cover Based on The Aceh Province Spatial Plan in The Krueng Aceh River Basin Ichsan Ichsan; Hairul Basri; Muhammad Rusdi
Rona Teknik Pertanian Vol 15, No 2 (2022): Volume No. 15, No. 2, Oktober 2022
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v15i2.24570

Abstract

Abstract. This study aims to analyze the area and distribution of land cover in the last 10 years in the Krueng Aceh and evaluate the alignment between the regional spatial plan (RTRW) and the land cover in the Krueng Aceh watershed. The results of the analysis were obtained through digital image processing derived from Landsat 7 ETM 2009 and Landsat 8 OLI 2020. This study shows that land cover in the form of primary forest has changed from 2009 to 2020, wherein 2009 primary forest cover had an area of 60,245.62 ha or 34.11% of the entire area while in 2020 it was reduced to 48,512.00 ha or 27.47% of the entire area. And Based on the results of the evaluation of the consistency of land closure conditions in the Krueng Aceh watershed against the Aceh Provincial RTRW, 98.40% of the area of the Krueng Aceh watershed obtained land cover consistent with the RTRW. But Based on the results of the Evaluation of the Consistency of Area Status in the Krueng Aceh River Basin against the Aceh Province RTRW, it was found that an area of 176,301.71 ha or equal to 99.99 % of the area of the Krueng Aceh River Basin, the status of the Area was consistent with the RTRW.
The Influence of Rheological Properties on The Pump Power Requirement for Transfering Ketchup Darwin Darwin
Rona Teknik Pertanian Vol 6, No 2 (2013): Volume 6, No. 2, Oktober 2013
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v6i2.20432

Abstract

Abstract. This research aimed to analyze the influence of rheological properties of ketchup on the pump power, required during transporting process. This research was done through using a computer programme designed for calculating and analyzing the influence of rheological properties toward materials and equipments installed in the transport system. Those rheological properties derived from laboratory analysis and literature review include viscosity and density from any type of ketchup. Results analysed by a computer programming revealed that flow behaviour Index (n) and consistency coefficient (m) were the rheological properties interacting with each other since these parameters were the viscosity of ketchup that influences energy losses in the transport system. Once the total of energy losses was obtained from the system, the pump power required for transfering the product also can be known. Based on the simulation conducted by using rheological parameters of ketchup with consistency coefficient of 12.33 PaSn, and flow behaviour Index at 0.41 was obtained total energy losses at 202.26 J/kg with the pump power requirement at 0.22 kW. Once consistency coefficient was 18.7 PaSn, and flow behaviour Index was at around 0.4, the total of energy losses increased to 277.58 J/kg with pump power requirement at 0.28 kW. Abstrak. Penelitian ini bertujuan untuk menganalisa pengaruh dari sifa-sifat reologi dari kecap terhadap daya pompa yang dibutuhkan selama proses transfer atau pengalirannya. Penelitian ini dilakukan menggunakan suatu program komputer yang didesain untuk menghitung dan menganalisa pengaruh sifat-sifat reologi terhadap peralatan dan bahan yang digunakan pada sistem transfer. Sifat-sifat reologi tersebut diperoleh dari analisis laboratorium dan studi literatur yang berupa viskositas dan densitas dari berbagai tipe kecap. Hasil yang telah dianalisis dengan program komputer mengungkapkan bahwa index perilaku aliran (n) dan koefisien konsistensi (m) merupakan sifat reologi bahan yang saling berinteraksi, hal ini karena parameter tersebut merupakan viskositas dari kecap yang mempengaruhi kehilangan energi pada sistem transfer. Ketika total kehilangan energi dari sistem diketahui, maka daya pompa yang dibutuhkan untuk mentransferkan produk kecap tersebut juga dapat diketahui. Berdasarkan simulasi yang dilakukan dengan menggunakan parameter-parameter reologi dari kecap dengan koefisien konsistensi 12.33 PaSndan index perilaku aliran 0.41 maka diperoleh total kehilangan energi sebesar 202.26 J/kg, daya pompa yang dibutuhkan sebesar 0.22 kW. Ketika koefisien konsistensi bahan 18.7 PaSn, dan index perilaku aliran 0.4, maka total kehilangan energi meningkat menjadi  277.58 J/kg dengan daya pompa yang dibutuhkan juga meningkat menjadi 0.28 kW.  
Analisis Indeks Kekeringan Hidrologi DAS Krueng Aceh (Studi Kasus Sub DAS Krueng Jreue dan Sub DAS Krueng Khee) Attabari Aldin; Hairul Basri; Syahrul Syahrul
Rona Teknik Pertanian Vol 15, No 1 (2022): Volume No. 15, No. 1, April 2022
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v15i1.21721

Abstract

Abstrak.  Luas Sub DAS Krueng Jreue 23.218,06 Ha dan Sub DAS Krueng Khee 9.599,66 Ha. Berdasarkan hasil kajian bahwa luas vegetasi tutupan lahan semakin berkurang setiap tahunnya dimana ditandai dengan tingginya nilai fluktuasi debit sehingga mengakibatkan banjir pada musim hujan dan kekeringan pada musim kemarau. Tujuan penelitian adalah untuk mengetahui nilai ambang batas kekeringan hidrologi di Sub DAS Krueng Jreue dan Sub DAS Krueng Khee dan indeks kekeringan hidrologi di Sub DAS Krueng Jreue dan Sub DAS Krueng Khee. Penelitian ini menggunakan metode ranking Weibull dimana ditentukan nilai ambang batas Q50 dan Q80, dihitung defisit dan durasi dan kemudian ditentukan nilai indeks kekeringan hidrologi. Nilai ambang batas Sub DAS Krueng Jreue adalah 0,067 m3/s dan Sub DAS Krueng Khee 0,181 m3/s. Defisit Sub DAS Krueng Jreue tahun 2014 adalah tertinggi dengan angka 0,401 m3/s dengan durasi kering tujuh bulan dan Sub DAS Krueng Khee tahun 2012 adalah tertinggi dengan angka -0,715 m3/s dengan durasi kering enam bulan. Indeks kekeringan hidrologi di Sub DAS Krueng Jreue tahun 2015 adalah tertinggi dengan nilai 0,0629 m3/s dan indeks kekeringan hidrologi di sub DAS Krueng Khee tahun 2011 adalah tertinggi dengan nilai 0,3282 m3/s.An Analysis of The Krueng Aceh’s Hydrological Drought Index  (A Case Study of The Sub Watershed Krueng Jreue and Krueng Khee)Abstract.  The area of the Krueng Jreue Sub-watershed is 23,218.06 Ha and the Krueng Khee Sub-watershed is 9,599.66 Ha. Based on the results of the study that the area of land cover vegetation decreases every year which is indicated by the high value of discharge fluctuations, resulting in flooding in the rainy season and drought in the dry season. The purpose of this study was to determine the threshold value for hydrological drought in the Krueng Jreue Sub-watershed and Krueng Khee Sub-watersheds and the hydrological drought index in the Krueng Jreue Sub-watershed and Krueng Khee Sub-watersheds. This study uses the Weibull ranking method where the threshold values for Q50 and Q80 are determined, the deficit and duration are calculated and then the hydrological drought index value is determined. The threshold value for the Krueng Jreue Sub-watershed is 0.067 m3/s and the Krueng Khee Sub-watershed is 0.181 m3/s. The Krueng Jreue Sub-watershed deficit in 2014 was the highest at 0.401 m3/s with a dry duration of seven months and the Krueng Khee Sub-watershed in 2012 was the highest at -0.715 m3/s with a dry duration of six months. The hydrological drought index in the Krueng Jreue Sub-watershed in 2015 was the highest with a value of 0.0629 m3/s and the hydrological drought index in the Krueng Khee Sub-watershed in 2011 was the highest with a value of 0.3282 m3/s. 
Unjuk Kerja Pengering Tenaga Surya Tipe Efek Rumah Kaca Untuk Pengeringan Cabai Dengan Perlakuan Low Temperature Long Time Blanching Andi Muhammad Irfan; Arimansyah Arimansyah; A. Ramli Rasyid; Nunik Lestari
Rona Teknik Pertanian Vol 13, No 2 (2020): Volume 13, No. 2, Oktober 2020
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v13i2.17788

Abstract

Abstrak. Penelitian ini bertujuan untuk menguji unjuk kerja pengering tenaga surya tipe efek rumah kaca pada pengeringan cabai dengan perlakuan low temperature long time (LTLT) blanching. Selain itu, pada penelitian ini juga dilakukan kajian mengenai karakteristik pengeringan cabai yang dipengaruhi oleh perlakuan LTLT blanching, terutama pada kadar air, laju pengeringan, kecepatan pengeringan, dan kualitas warna. Pengujian dilakukan dengan cara mengeringkan cabai merah dengan pretreatment LTLT blanching yang dikombinasikan dengan perlakuan merotasikan rak pengering (R) dan tanpa merotasikan rak pengering (TR). Sebagai kontrol adalah cabai yang dikeringkan tanpa blanching dan tanpa merotasikan rak pengering (K). Hasil penelitian menunjukkan bahwa perlakuan LTLT blanching yang dikombinasikan dengan merotasikan rak pengering (R) merupakan perlakuan yang terbaik, dengan kadar air akhir cabai kering sebesar 9,82% dan sesuai dengan standar SNI. Waktu pengeringan yang dibutuhkan adalah selama 5 hari. Warna cabai kering yang dihasilkan adalah yang terbaik dari dua perlakuan lainnya, dengan nilai L*, a*, dan b* untuk setelah proses LTLT blanching (sebelum proses pengeringan) dan setelah pengeringan berakhir (cabai kering) berturut-turut adalah 36,02, 38,22, 13,62, dan 32,44, 33,89, dan 10,19. Energi yang terpakai untuk pengeringan cabai adalah sebesar 596181 kJ. Perlakuan R ini juga menghasilkan efisiensi pengeringan terbaik, yaitu sebesar 34,01%.Performance of Green House Effect Type Solar Dryer in the Chillies Drying with Low Temperature Long Time Blanching TreatmentAbstract. This study aims to examine the performance of the greenhouse effect type solar dryer on drying chillies with low temperature long time (LTLT) blanching treatment. In addition, a study was also conducted on the characteristics of drying chillies and the final product affected by LTLT blanching treatment, especially in terms of moisture content, drying rate, drying speed, and color. Testing was performed by drying red chilli with LTLT blanching treatment, which was combined with the treatment of rotating dryer rack (R) and without rotating dryer rack (TR). As a control, chillies were dried without blanching treatment and without rotating dryer rack (K). The results show that the LTLT blanching treatment combined with rotating the drying rack (R) is the best treatment, with a final moisture content of 9.82% which is in accordance with SNI standards. The drying time needed is 5 days. The dried chilli color produced is the best of the other treatments, with values of L*, a*, and b* for after the LTLT blanching process and after drying ended, respectively 36.02, 38.22, 13.62, and 32.44, 33.89, 10.19. The energy used for drying chillies is 596181 kJ. This R treatment also produces the best drying efficiency, which is 34.01%.

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