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All Journal Jurnal Keteknikan Pertanian JURNAL ILMU PERTANIAN Agrointek Turbo : Jurnal Program Studi Teknik Mesin Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL AGROHITA Jurnal Teknologi Pertanian Andalas Jurnal Hexagro Jurnal Review Pendidikan dan Pengajaran (JRPP) Agro Bali: Agricultural Journal Jurnal Penelitian Agrosamudra Best Journal (Biology Education, Sains and Technology) Jurnal Agro Estate Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi AL-ARKHABIIL: Jurnal Pengabdian Masyarakat IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Jurnal Agro Estate Jurnal Agro Fabrica

Zulham Effendi

Program Studi Teknologi Pengolahan Hasil Perkebunan, Institut Teknologi Sawit Indonesia, Medan

Author-ID : 6352559

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APLIKASI INTERPOLASI LAGRANGE TERHADAP EFISIENSI TURBIN PADA PABRIK KELAPA SAWIT MAYANG KAPASITAS 40 TON/JAM Siti Aisyah Aisyah; Zulham Effendi; Dicky Vernanda Maha
AGROINTEK Vol 15, No 1 (2021)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v15i1.6515

Energy can’t be created and can’t be destroyed but energy can be transformed from one energy into another. The success rate of energy change is called efficiency. The success of a steam turbine certainly can’t be separated from the level of efficiency and application of good and correct procedures in its use. Efficiency values can be found by using data from the power released by the turbine, mass flow rate andenthalpy. Enthalphi search can use the lagrange interpolation method. Data is collected for 3 months in September, October and November 2018 at the Mayang palm oil mill. The greatest efficiency value in the three months occurred in October, amounting to 43.50 % and the lowest occurred in November, amounting to 36.98 %. High or low efficiency can occur because of the large and small comparison of the power released by the turbine enthalpy and mass flow rate. As well as the effect of the wet steam produced by the boiler can cause rotation of the blades to weaken and result in little power released by the steam turbine.

Analisa Head Losses dengan Penerapan Simulasi pada Diameter Pipa dan Pengaruh Nilai Net Positive Suction Head terhadap Terbentuknya Kavitasi pada Pompa Siti Aisyah; Zulham Effendi; Wahyu Yoga Pratama
Jurnal Keteknikan Pertanian Vol. 9 No. 1 (2021): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.09.1.17-22

The pump works by converting mechanical energy into kinetic energy where along the fluid flow there will be a flow loss which causes a decrease in the thrust pressure on the discharge side of the pump. This is due to fluid friction against the pipe walls, and the use of elbows, valves, etc. This analysis aims to calculate the amount of pressure loss (head losses) in the cross-sectional area of the pipe, the available Nett Positive Suction Head (NPSHa), and in the end it will be compared with the required Nett Positive Suction Head (NPSHr) of the pump. This research was conducted in one of the Palm Oil Mill in Tanah Putih District, Rokan Hilir Regency, Riau Province. Data obtained from pump specification data, suction pipe specifications, pressure pipe specifications, daerator height data, upper drum height data, and pumped water temperature data. The instrument analyzed is a pump engine that distributes water from the daerator to the upper drum with the Pump Brand : Southern Cross, type: 52L-4, pump capacity: 25 m3/hour, pump rotation : 3000 rpm, head : 40 meters, temperature : 100 0C, year : 1989. The results obtained that the flow velocity in the suction and compressive pipes is 0.8567 m⁄s, the Reynold number for pipe 4 " is 295050 m (turbulent flow), relative pipe Roughness for pipe 4" is 0.0015, losses on the suction pipe is 0.1082 m, the loss in the pressure pipe is 0.0927 m, the head loss at the 900 elbow pipe connection is 0.0012 m. The head loss on the gate valve resistance is 0.0059 m.

DETEKSI UNSUR HARA MAKRO N,P,DAN K PADA DAUN TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq) DENGAN MENGGUNAKAN METODE IMAGE PROCESSING BERDASARKAN FILTER SOBEL Zulham Effendi; Ingrid Ovie Yosephine; M.Hasby Atthariq Sembiring
Jurnal Agro Estate Vol 2 No 1 (2018): Juni 2018
Publisher : Institut Teknologi Sawit Indonesia

The use of leaf color chart is one way to analyze fertilizer needs. This tool is suitable to optimize the delivery of N, P, and K elements to oil palm. The use of visual technology in the form of image processing can facilitate in analyzing an object without directly related to the object being observed. The image of oil palm through image processing can be analyzed with the greenishness of the leaves so as to predict the fertility of oil palms.

ANALISA RELIABILITY, MAINTAINABILITY DAN AVAILABILITY UNTUK MENINGKATKAN EFEKTIVITAS DAN EFESIENSI STERILIZER DI PABRIK KELAPA SAWIT Zulham Effendi; Ika Ucha Pradifta Rangkuti
Jurnal Agro Estate Vol 1 No 1 (2017): Juni 2017
Publisher : Institut Teknologi Sawit Indonesia

Palm Oil Millprocessingfreshfruit bunches (FFB) into palm oil andpalm kernel. In an effort to maintain quality and improve productivity, one ofthefactors that must be considered is theproblem ofmaintenance of the facilities / production machine. This study discusses the causes and consequences caused by the breakdown occurred Sterilizer machine, particularly on HorizontalSterilizer and vertical Sterilizer. To get a machine that can be maintained keterandalannya needed a good concept. Total Productive Maintenance (TPM) is a good concept to realize this. This concept, in addition to involving all personnel in the company, also aims to take care ofall the production facilities ofthe company. The data used is the data breakdown Horizontal Sterilizer and Vertical Sterilizer during the months from July to September 2015. In addition, this study also discusses the performance ofmaintenance mills, taking into account the value Mean Time beetwen Failure (MTBF), Mean Time To Repair (MTTR), and availability machine, using data from the foreman daily recordfor the month ofJuly 2015 until September 2015. So that later will know the actual state o f the company's information about treatment systems, especially in Sterilizer whether good or bad. Horizontal Sterilizerresearch results in July availablity value of99.50%, 0.42 hours maintainability and reliability value of283.75 hours while Vertical Sterilizerseptember availablity value of 98%, the value o f the maintainability o f 1.7 hours and 126.95 hours reliability value indicating reliability good, availability andperformance meets the standard ofthe lower maintenance operator will be well andgood.

PENGARUH PUPUK ORGANIK CAIR DARI BONGGOL PISANG TERHADAP KADAR HARA NITROGEN TOTAL DAN C-ORGANIK PADA BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) Ingrid Ovie Yosephine; Zulham Effendi; Widya Tri Lestari
Jurnal Agro Estate Vol 5 No 2 (2021): Desember 2021
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v5i2.226

Suspension media is made of natural ingredients to multiply microorganisms that can accelerate the destruction of organic matter. Banana hump contains water, iron, phosphorus, calcium, carbohydrates, calories and protein, which are potential as organic fertilizers. Application of banana weevil fertilizer is expected to increase the carrying capacity of the soil for the availability of organic matter and nutrients. The purpose of this study was to determine the best concentration or dose of organic liquid fertilizer for banana weevil on the vegetative growth of oil palm (Elaeis guineensis Jacq.) seedlings in the Main Nursery. Based on this statement, this research was compiled with the object of oil palm in the Main Nursery. This research was conducted in the Nursery Practice Garden area at STIP-AP Medan. Soil analysis was carried out at the Soil Laboratory of the Agricultural Technology Research Institute (BPTP) of North Sumatra. The time of the study was carried out for 8 months, from January 2021 - August 2021. This study used a Randomized Block Design (RAK) with 2 factors, namely Factor (1) Liquid Organic Fertilizer Banana Cobs and Factor (2) Compound Fertilizer (NPK) 16:16 :16. The treatment was repeated 3 times, with the number of samples being 2 plants so that the sample population was 54 plants. Parameters observed were seedling height, stem circumference, number of leaves, leaf width, root wet weight, shoot wet weight, shoot dry weight, root dry weight, total nitrogen nutrient content and C-organic nutrient content. The data obtained were analyzed statistically by analysis of variance (ANOVA) with 5% and 1% significant difference tests. The results showed that the treatment of banana weevil liquid organic fertilizer and compound fertilizer had no significant effect on the observed parameters. However, the biomass formed was significantly affected as indicated by the weight parameter. The availability of total nitrogen and C-organic nutrients in Ultisol soil showed a very low classification with total nitrogen values of 0.07 – 0.09% and C-organic values of 0.22 – 0.54%.

ANALISA KAVITASI TERHADAP POMPA THORISHIMA BERDASARKAN VARIASI TEMPERATUR DAN KETINGGIAN INSTALASI DEARATOR Zulham Effendi; Siti Aisyah; Suhermansyah Pratama
Jurnal Teknologi Pertanian Andalas Vol 25, No 1 (2021)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.25.1.6-15.2021

Unjuk kerja pompa sentrifugal ditandai dengan besarnya efisiensi, head, dan kapasitas pompa tersebut apabila digunakan dengan daya yang sama. Untuk memperbaiki unjuk kerja tersebut, maka dibutuhkan penelitian dan kajian yang mendalam untuk mendapatkan karakteristik pompa sentrifugal yang diinginkan dalam mendistribusikan air ke deaerator dengan temperatur yang maksimal tanpa mengalami kavitasi. Penelitian ini bertujuan untuk mengetahui headloss serta proses kavitasi yang terjadi pada pipa di PKS Tebing Tinggi. Dari hasil analisis yang telah dilakukan maka telah diketahui total headloss yang terjadi pada sistem perpipaan ketinggian 6 m sebesar 2,8498 m, ketinggian 8 m sebesar 3,4648 m , ketinggian 10 m sebesar 4.0698 m, ketinggian 12 m sebesar 4.6798 m. Kemudian proses terjadi kavitasi pada sistem perpipaan hanya terjadi pada ketinggian 6 m pada temperatur 102°C - 105°C dan ketinggian 8 m terlihat pada temperatur 105°C. Selanjutnya pada ketinggian 10 meter dan ketinggian 12 meter proses terjadinya kavitasi itu sudah tidak ada. Maka dari itu berdasarkan potensi yang telah diperhitungkan bahwa semakin tinggi instalasi deaerator kecil kemungkinan terjadinya kavitasi serta pada nilai efisiensi yang ideal terjadi pada ketinggian 10 meter dan 12 meter.

DETEKSI PENYAKIT GARIS KUNING (patch yellow) PADA DAUN TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq) DENGAN MENGGUNAKAN METODE IMAGE PROCESSING BERDASARKAN FILTER SOBEL Zulham Effendi; Saroha Manurung; Silvy Mila Ayu
Jurnal AGROHITA: Jurnal Agroteknologi Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan Vol 5, No 1 (2020): Jurnal Agrohita
Publisher : Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jap.v5i1.1677

Penggunaan tekhnologi visual seperti pengolahan citra (image processing) dapat mempermudah dalam proses menganalisa suatu objek tanpa berhubungan langsung dengan objek yang akan diamati. Citra daun tanaman kelapa sawit melalui pengolahan citra dapat dianalisa melalui tingkat kehijauan daun dan pola yang ada pada daun sehingga dapat mengetahui kesuburan tanaman kelapa sawit. Penelitian ini dilaksanakan di PT. Perkebunan NusantaraII kebun Limau Mungkur. Penelitian ini dilaksanakan dari bulan Desember 2018 – Juli 2019 yang dimulai dari pengambilan sampel daun sampai dengan pengolahan data. Penelitian ini menggunakan metode analisa deskriptif, yaitu dengan cara mengumpulkan sampel daun yang dibutuhkan untuk dianalisa dengan menggunakan software image processing, kemudian dideteksi untuk mengetahui pola bentuk daun yang terserang penyakit garis kuning pada daun tanaman kelapa sawit. Hasil dari penelitian yang telah dilakukan maka dapat diambil kesimpulan yaitu: perbedaan antara daun sehat dengan daun yang terserang penyakit garis kuning pada tanaman kelapa sawit dapat dibedakan dengan jelas karena pola bercak yang ada pada masing-masing daun dapat dipolakan dengan warna. Pada daun sehat hanya da pola garis vertikal yang berwarna gelap dan tidak terdapat bercak pada badan daun. Berbeda dengan daun yang terserang penyakit garis kuning, pada permukaan daun yang terserang penyakit terdapat pola-pola seperti bercak, semakin banyak pola-pola tersebut maka semakin berat tingkat serangan penyakit tersebut. Nilai bercak pada masing-masing grade penyakit tersebut berhasil didapatkan melalui proses image processing yang berdasarkan filter sobel.

OPTIMASI PEMBUATAN LILIN AROMATERAPI BERBASIS STEARIC ACID DENGAN PENAMBAHAN MINYAK ATSIRI CENGKEH (SYZYGIUM AROMATICUM) Siti Aisyah; Zulham Effendi; Siti Nur Hawalis
Hexagro Journal Vol. 4 No. 1 (2020)
Publisher : Universitas Perjuangan Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36423/hexagro.v4i1.362

Pabrik lilin pada umumnya mengolah lilin dengan menggunakan bahan dasar parafin. Parafin dihasilkan dari minyak bumi yang sifatnya tidak dapat diperbaharui. Pada penelitian ini bahan yang digunakan yaitu stearic acid karena sifatnya dapat diperbaharui dan mudah di dapatkan. Tujuan penelitian ini adalah untuk membuat lilin beraromaterapi dan mengetahui pengaruh perbedaan komposisi bahan yang digunakan pada produk lilin aromaterapi dengan lilin yang dijual dipasaran pada umumnya. Metode yang digunakan yaitu eksperimental Laboratorium dengan menggunakan analisis deskriptif. Perlakuan yang diuji adalah lilin aromaterapi ekstrak minyak atsiri cengkeh (Syzygium Aromaticum), dengan 4 taraf perlakuan, yaitu A0 (0 ml), A1 (3 ml), A2 (5 ml), A3 (7 ml). Hasil penelitian menunjukkan bahwa lilin aromaterapi yang terbuat dari stearic acid memiliki beberapa kelebihan dari lilin pada umumnya yang dijual dipasaran yang terbuat dari parafin, adapun kelebihannya yaitu lilin tersebut memiliki keadaan fisik yang lebih kokoh atau tidak muda patah, life time lebih lama, dan lelehan lilin tersebut lebih sedikit dikarenakan pada saat proses pembakaran dan pelelehan bahan dasar stearic acid tersebut juga ikut menguap.

ANALISA PRODUKTIVITAS TANAMAN KARET (Havea brasiliensis Muell. Arg) KLON PB 260 DENGAN MENGGUNAKAN BERBAGAI SISTEM SADAP DI AFDELING I KEBUN BANGUN PT. PERKEBUNAN NUSANTARA III Zulham Effendi; Muhammad Haiqal Fikri; Hardy Wijaya
Jurnal Agro Estate Vol 6 No 1 (2022): Edisi Juni
Publisher : Institut Teknologi Sawit Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jae.v6i1.241

The productivity of rubber plantations is determined by the type of clone, the age of the plant, the level of land suitability, and the exploitation system applied. The exploitation system applied determines the productivity of the rubber plantation because it is related to the use of the skin and the physiological process of latex. Implementing the right exploitation system can ensure high and sustainable productivity. On the other hand, the implementation of the wrong exploitation system can result in low productivity and shorten the economic life of the plant. This study aims to determine the productivity of rubber plants in clone PB 260 with various tapping systems. This research was conducted at Afdeling I Kebun Bangun PT. Perkebunan Nusantara III using a descriptive analysis method by collecting secondary data on the productivity of the PB 260 clone rubber plant from 2016 – 2020. The parameters observed were the production data of the PB 260 clone rubber plant with various tapping systems. The results of this study indicate that the analysis of rubber plant productivity data in 2016 – 2020 had the highest production in 2017 with a planting year of 2009 and the lowest in 2020 with a planting year of 2000. Meanwhile, overall, the highest production was in 2018 and the lowest was in 2016. The factors that influence the high and low productivity are caused by the tapping system that is not permanent or changing, the lack of application of fertilization, the reduction in the number of trees in the field caused by being attacked by JAP (White Root Fungus), KAS (Dry Alur Sadap), Moldy Road, fallen trees due to strong winds, and the age of the plants. The relationship between production and cost of goods/kg is that the greater the production obtained, the lower the cost of goods/kg.

Fuel Used Analysis on Boiler Efficiency Variations and Water Intake Temperature Affected by Palm Oil Varieties Zulham Effendi; Siti Aisyah; Rionaldo Hastyanda
Agro Bali : Agricultural Journal Vol 4, No 1 (2021)
Publisher : Universitas Panji Sakti

Several factors that affect the use of fuel in boilers are combustion efficiency, quality of feed water management, calorific value, and the potential for available fuel from oil palm varieties. The purpose of this research is to identify the use of fuel and its potential savings based on variations in boiler efficiency and water temperature that entered the boiler. The materials used in this research are FFB mass balance data and boiler fuel composition. Based on the analysis results, the lowest used fuel mass and the highest fuel savings are found in the DxPLangkat variety with an intake water temperature of 105o C and 80% boiler efficiency. The use of fuel is 4,231 kg/hour with shell savings of 967 kg/hour with a value of IDR 725,701. Fiber savings was 487 kg/hour with a value of IDR 121,751.The highest used fuel mass and the lowest fuel savings were found in the Yangambi derivative variety with an intake water temperature of 85o C and 60% boiler efficiency.The fuel consumption is 5,830 kg/hour with shell savings totalling -380 kg/hour. There is no fiber analysis because it is used up hence additional fuel is needed. Additional fuel can be done by asking for other palm oil mill units or buying. If they buy a shell with a requirement of 380 kg/hour, the funds required are IDR 284,939.

Co-Authors AA Sudharmawan, AA Abidarba Lubis Adi Widjajanto Adi Widjajanto Agung Prasastiyo, Bima Amar Fauzi Nainggolan Andika, Wahyu Arifin Rikonta Tarigan Benita Septiana Sinaga Benita Septiana Sinaga Busrizal Faisal Calvin Arnico Lase CANDRA GUNAWAN Dasa Syawal Syahputra Dewi Fitriana Dicky Vernanda Maha Dori Chandra Eka Bobby Febrianto, Eka Bobby Faisal, Busrial Fauzi Asrianto Febriana Roosmawati Giyanto . Giyanto Giyanto Guntoro Habib Prayitno Hardy Wijaya Hardy Wijaya Hasanal Fachri S. Simbolon Ika Ucha Pradifta Rangkuti Ingrid Ovie Yosephine Irwansyah Lubis, Ahmad Fahmi Alhafiz M.Hasby Atthariq Sembiring Mahyunis Manurung, Saroha Melani Kurnia Fitri Mhd. Andi Rasyid Mhd. Insan Muhtadawan Muhammad Alim Muhammad Fauzan A Lubis Muhammad Haiqal Fikri Muhammad Haiqal Fikri Muhammad Khairil Mulyara, Budi Nugroho, Marfi Dwi Pada Mulia Raja Pardosi, Fakhrurrozi Rachmat Ramadhan Siregar Rangkuti, Ika Ucha P Renaldy, Muhammad Aziz Rionaldo Hastyanda Sembiring, Arifa Sura Silvy Mila Ayu Sinaga, Sopian Sinuraya, Robi Alisyahbana Siti Aisyah Siti Aisyah Siti Aisyah Siti Aisyah Siti Aisyah Aisyah Siti Nur Hawalis Sri Wahyuna Saragih Suhermansyah Pratama Sulthon Parinduri Tinambunan, Levi Rentiana Tri Hardiansyah Wahyu Yoga Pratama Widya Tri Lestari Widya Tri Lestari Yanti, Irda Zakwan Zakwan Zakwan Zulyaden Lubis

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