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Siti Aisyah
Institut Teknologi Sawit Indonesia
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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

Abstract

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 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

Abstract

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.
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

Abstract

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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (764.109 KB) | DOI: 10.37637/ab.v0i0.634

Abstract

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.
PENGARUH VARIASI LAMA PENYULINGAN DAN KECEPATAN PENGADUKAN TERHADAP MUTU MINYAK ATSIRI SEREH WANGI SITI AISYAH
JURNAL ILMIAH KOHESI Vol 7 No 1 (2023): JURNAL ILMIAH KOHESI
Publisher : LP2MTBM MAKARIOZ

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Essential oils are oils that are volatile, odorless, fragrant and not easily decomposed at room temperature, found in various parts of plants. Essential oils contain a variety of different chemical components, but these components can be classified into four major groups that dominantly determine the properties of essential oils. Citronella essential oil is often also referred to as citronellal oil because citronella essential oil is an oil extracted by the method of steam distillation or distillation from the leaves. This study aims to determine variations in distillation time and stirring speed on the quality of citronella essential oil. The results showed that the longer the distillation time and the higher the stirring speed, the greater the yield of citronella essential oil produced. This is because the longer the heating time, the more heat will be received by the material, so that the material will evaporate the oil components present in the material so that more steam will come out of the oil components in the tissue contained in the material and The extracted oil will increase. The specific gravity produced is also in accordance with SNI, which is worth 0.850 – 0.892, where the longer the distillation process and the greater the stirring speed, the greater the specific gravity of citronella essential oil. This is because the citronella leaves will polymerize so that the purity of the oil will decrease due to the formation of polymers with higher molecular weights. Likewise, the refractive index of citronella essential oil produced is also in accordance with SNI, which ranges from 1.454 to 1.473, although the S3T3 treatment produces a refractive index that is still not in accordance with SNI, namely only 1.449. This is because the S3T3 treatment with a longer distillation time and a stirring speed that is too large will cause the resulting index of refraction to be smaller, because the longer the distillation process, the lower the density of the oil so that the refractive rays will be closer to the normal line, then the angle of refraction will be greater as a result the index of refraction will be smaller.
KAJIAN PERBEDAAN METODE APLIKASI ETEPHON 60% TERHADAP EFISIENSI PEMBRONDOLAN SERTA NILAI DOBI, BETA KAROTEN DAN VITAMIN E PADA TANDAN BUAH SEGAR KELAPA SAWIT Giyanto; Guruh Damanik; Siti Aisyah
Jurnal Agro Fabrica Vol. 4 No. 2 (2022): Desember 2022
Publisher : Institut Teknologi Sawit Indonesia (ITSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jaf.v4i2.110

Abstract

Semi Virgin Crude Palm Oil (SVCPO) is a palm oil product that is processed from palm oil FFB raw materials which are treated using chemicals in the form of 60% etephon. The FFB is processed with simple tools and a short process, as well as minimum treatment with a modified temperature. This study aims to speed up the harvesting time of palm fruit from the bunch by using the application method and 12 hours of curing time to produce good quality oil. This research was conducted at STIPAP, precisely at the TPHP Process Laboratory. The time of this research was carried out from January to July 2021. This study used the Completely Block Design (CBD) method, by administering chemicals to the FFB raw material by injection and spray methods. The results of this study showed that the FFB removal efficiency ranged from 6.61- 11.44% and SVCPO had DOBI values ranging from 1.66-2.57 ppm, carotene ranged from 311- 1044 ppm, and vitamin E ranged from 409-897. ppm. The application of injection and spray affects the efficiency of sloughing off and the quality of the oil. It can be concluded that in this study the best method for slashing efficiency was the spray method and the injection method for DOBI, carotene, and vitamin E values.
Pembuatan Kertas Berbahan Baku Pelepah Kelapa Sawit (Elaeis guineensis Jacq.): Manufacture of paper material from oil palm fronds Siti Aisyah Aisyah; Trihernawati Trihernawati
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.165-174

Abstract

Oil palm (Elaeis guineensis, Jack) is a source of income for millions of farming families, a source of foreign exchange, a provider of employment, as well as a driver for the growth and development of downstream palm oil-based industries in Indonesia. Oil palm fronds are solid waste originating from oil palm plantations. Paper is a thin material that is produced by compressing the fibers derived from the pulp. The process of making pulp is by separating lignin compounds to get cellulose fibers from wood. This study aims to utilize palm fronds to be used in making paper according to SNI. The stages of this research were chopping, washing, boiling, soaking NaOH, soaking H2O2, grinding, adding talcum, molding and drying in an oven at 75 0C, 80 0C, 85 0C. As many as 64% of panelists stated that the paper produced with a drying temperature of 75 0C was white while at 80 0C as many as 62% of panelists stated that the paper produced was white and at 85 0C as many as 56% stated that the paper was white and in accordance with SNI 4733 The texture of the paper produced at a drying temperature of 75 0C was 76% of the panelists who stated that the resulting paper had a smooth texture while at 80 0C there were 66% who stated that the texture of the paper was smooth and at 85 0C as many as 62% stated the texture of the paper was smooth and according to SNI 0439 The water content of the paper produced at a drying temperature of 75 0C obtained an average of 1.9%, at 80 0C it was only 1.8% and with a drying temperature of 85 0C a high moisture content was obtained, namely 1.6%, but this result is still in accordance with SNI 0439, namely the maximum 2%. The average grammage value of paper produced at a drying temperature of 75 0C is 76.1 g/m2, at a temperature of 80 0C it is 79.9 g/m2 and at a drying temperature of 85 0C it is 85.3 g/m2 where this value is still in accordance with SNI 0439, namely a minimum of 50 g/m2
Pembuatan Sabun Souvenir Untuk Meningkatkan Kapasitas Anggota PKK di Desa Patumbak I Kecamatan Patumbak Deli Serdang Rafael Remit Winardi; Healthy Aldriany Prasetyo; Siti Aisyah; Muhammad Yusuf Dibisono; Hermansyah Hermansyah; Apip Gunaldi; Sinta Diana
Madaniya Vol. 6 No. 2 (2025)
Publisher : Pusat Studi Bahasa dan Publikasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53696/27214834.1259

Abstract

Kegiatan pengabdian kepada masyarakat dilaksanakan secara kolaborasi oleh Universitas Medan Area, Institut Teknologi Sawit Indonesia, dan Politeknik MBP. Latar belakang kegiatan adalah kondisi dan potensi yang terdapat di Desa Patumbak I dengan mitra kegiatan adalah anggota pemberdayaan dan kesejahteraan keluarga. Tujuan dari kegiatan ini adalah untuk meningkatkan kapasitas anggota pemberdayaan dan kesejahteraan keluarga melalui penyuluhan dan pelatihan serta demonstrasi pembuatan sabun souvenir. Demonstrasi menghasilkan produk sabun souvenir dan bersifat soap base. Kegiatan pengabdian diikuti oleh 31 orang peserta dan berhasil; meningkatkan antusias dan motivasi peserta; meningkatnya pengetahuan, pemahaman dan keterampilan membuat sabun. Nilai pemahaman sebelum dilakukan pelatihan sebesar 8,06% dan setelah kegiatan berakhir meningkat menjadi 97,31%.
The Utilization of a Mixture of Palm Oil and Shellfish Industrial Waste in Producing Paving Block: Producing Paving Block Aisyah, Siti Aisyah; Imelda, Donna; Busrizal; Hakim, Muhamad Abdul
Jurnal Keteknikan Pertanian Vol. 12 No. 3 (2024): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.012.3.352-361

Abstract

The population growth in Indonesia will lead to increased demands in the development sector.This growth must be balanced with environmentally friendly development practices. Therefore,there is a need for alternative uses of industrial waste into other finished materials. Concretebricks (Paving blocks) are one of the building construction materials that function to cover orpave the ground. Boiler ash is one of the solid wastes of the palm oil industry which comes fromthe remains of burning shells and fibers in boiler machines. Palm oil shells are also one of thesolid wastes of the palm oil industry which comes from the separation between fiber and shellswhich occurs in the Light Tenera Dust Separator machine. (LTDS). Seashells can be considereda form of solid waste. According to the research findings, paving blocks treated with S1 and S2exhibit water absorption capacities that comply with SNI 03-0691-1996 standards, whichstipulate a maximum of 8% for C grade, suitable for pedestrian use. Paving blocks treated withS3 also meet the SNI 03-0691-1996 standards, with a maximum absorption of 10% for D grade,which is ideal for covering plants and home gardens. Lower water absorption rates indicatehigher quality paving blocks. Variance analysis reveals that water absorption capacitysignificantly impacts the quality of paving blocks. The compressive strength test showed thatpaving blocks with S2 treatment had the highest strength, averaging 2.10 MPa. The highpercentage of boiler ash, which acts as a partial binder for the sand, is the reason for this. Thelowest compressive strength, averaging 1.01 MPa, is observed in paving blocks treated with S3.This is because of the significant amount of shell ash, which contains the chemical compoundsilica, similar to sand. Additionally, according to SNI 03-0691-1996, the compressive strengthtest results for paving blocks treated with S1, S2, and S3 do not meet the minimum requirementof 8.5 MPa. Analysis of variance indicates that the compressive strength of paving blocks variessignificantly.
Pembuatan papan partikel berbasis kulit tanduk kopi dan tandan kosong kelapa sawit Siti Aisyah; Budi Mulyara; Izmi Adini; Heri Purwanto
AGROINTEK Vol 19, No 3 (2025)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v19i3.25871

Abstract

The palm oil industry produces solid waste, particularly empty oil palm fruit bunches. The lignin contained in these empty bunches functions to make the wood resistant to microbial attack. Meanwhile, coffee horn skin waste is not used optimally. This research aims to utilize waste coffee horn skin and empty oil palm fruit bunches as alternative raw materials for making particle boards. Empty oil palm bunches and coffee husks are dried in the sun to reduce the water content of products and ensure the fiber becomes dry. Empty bunches and dried horn skin are then soaked using a mixture of NaOH and distilled water. The resulting fibers that have been chopped are then dried. The resulting dried fibers are reduced in size again. There are 7 different ratios that are used in fiber mass between empty bunches plam fruit and coffee husk. Every particle board was built in dimensions of 25 x 25 x 5cm and pressed for 10 minutes. The research results obtained in the form of board particle density tests showed significant differences in all treatments, and the density test results met SNI 03-2105-2006. Apart from that, there is no real difference in the test results for the particle board water content, so it meets SNI 03-2105-2006. Tests for the development of thick board particles showed that there were significant differences in all ratios, namely that P1, P2, P5 met SNI 03-2105-2006 and P3, P4, P6, P7 did not meet SNI 03-2105-2006. In the elastic modulus and fracture modulus tests, there were no differences in all treatments. However, they did not meet SNI 03-2105-2006, whereas, in the particle board absorbency test, there were significant differences in all treatments and the absorbency test results were still relatively high. However, SNI 03-2105-2006 does not specify standard values for air absorbency.
Co-Authors Apip Gunaldi Busrizal Dicky Vernanda Maha Giyanto . Giyanto Giyanto Guruh Damanik Hakim, Muhamad Abdul Heri Purwanto Hermansyah Hermansyah Imelda, Donna Izmi Adini Jojor Indriani Samosir Muhammad Yusuf Dibisono Mulyara, Budi Rafael Remit Winardi Rionaldo Hastyanda Sinta Diana Siti Nur Hawalis Suhermansyah Pratama Trihernawati Trihernawati Zulham Effendi