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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Sinergi Jurnal Teknik Mesin Warta Ardhia : Jurnal Perhubungan Udara Jurnal Kelautan Nasional Food Science and Technology Journal (Foodscitech) G-Tech : Jurnal Teknologi Terapan International Journal of Advanced Technology in Mechanical, Mechatronics and Material (IJATEC) JTAM ROTARY International Journal of Community Service Journal of Integrated and Advanced Engineering (JIAE) Jurnal Pengabdian Masyarakat : Pemberdayaan, Inovasi dan Perubahan Jurnal Teknik Mesin Mechanical Xplore International Journal of Innovation in Mechanical Engineering and Advanced Materials J-ENSITEC (Journal of Engineering and Sustainable Technology) JCSE: Journal of Community Service and Empowerment Jipmas : Journal Inovasi Pengabdian Masyarakat

Nanang Ruhyat

Universitas Mercu Buana

Author-ID : 365292

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Perkiraan Kebutuhan Energi dalam Operasional Under Ground Terminal untuk Smart Eco Airport martolis tolis jasani; Nanang Ruhyat; Mohammad Ihsan
WARTA ARDHIA Vol 46, No 2 (2020)
Publisher : Research and Development Agency of The Ministry of Transportation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25104/wa.v46i2.384.122-132

Penanganan penumpang di bandar udara selain dilakukan di terminal penumpang juga dilakukan pada sisi udara, terutama pada remote area dimana proses penanganan penumpang terdapat unnecessary movement yang berisiko terjadinya insiden seperti kebakaran bus atau tabrakan bus, ketidak-efisienan penggunaan waktu dan biaya operasional, kesalahan penjemputan dan ketidak tepatan pelayanan. Seiring dengan kemajuan teknologi infrastruktur kebandarudaraan dimungkinkan untuk pengembangan under ground terminal berupa terminal dan akses bawah tanah dari terminal ke pesawat atau sebaliknya. Pengembangan teknologi mekanikal memerlukan konsumsi energi sebagai penunjang peralatan mekanikal tersebut berupa escalator atau travelator yang melalui trowongan. Akses bawah tanah ini juga dapat dimanfaatkan untuk smart baggage handling system, peralatan lain yang memerlukan energi yang terbesar adalah sistem pendingin. Total kebutuhan daya untuk sistem pendingin pada Terminal 3 saja saat ini adalah 12511.4 kW atau sekitar 12.5 MW. Dengan melakukan pendekatan kedalaman tanah yang berfungsi sebagai media pendingin dengan luasan terminal yang dianggap sama maka hasil simulasi perhitungan menunujukkan penurunan daya sebesar 37% sehingga total daya untuk pendinginan menjadi 7882.4 kW atau energi dapat ditekan sebesar 4629 kW. simulasi total daya pada under ground terminal dari semua peralatan mekanikal dan peralatan pendingin sebesar 14144,4 kW

CONDENSOR DESIGN ANALYSIS WITH KAYS AND LONDON SURFACE DIMENSIONS Dedik Romahadi; Nanang Ruhyat; L. B. Desti Dorion
SINERGI Vol 24, No 2 (2020)
Publisher : Universitas Mercu Buana

The use of condensers in air conditioning units is more common in large-capacity units than in ones with a smaller capacity. Air conditioning provides comfort and freshness to an air-conditioned room. It should be noted that each room has a different heat load, which affects the specifications of the condenser used. The accuracy with which appropriate condenser specifications are determined affects the performance of the air conditioner. Thus, considering how important condenser needs are, it is necessary to design condensers with optimal performance, which adhere to proven standards. To achieve this, the design of a condenser should be based on the results of the smallest condenser dimensions of three types of surfaces, as they are intended for a limited place. This condenser design uses the standard dimensions of the Kays and London charts. Data is collected by measuring the results of temperature and enthalpy of a refrigerant at desuperheating and condensation, inlet air temperature, outlet air temperature, refrigerant mass flow rate, and air mass flow rate. The results of the compact condenser design are based on existing data, which is obtained from the smallest design results. The result uses the type of Surface CF-8.72(c) with a heat transfer area of 0.259 m2, a total tube length of 9.5 m, crossing tube length 0.594 m and a pressure drop of 3778 Pascal (Pa) on the side of a tube. This design fulfills the stipulated requirements, as the pressure drop is less than the specified maximum limit in most units.

PENGARUH VARIASI DIAMETER TUBE PIPA EVAPORATOR DENGAN CIRCULAR FINS TERHADAP PRESSURE DROPS ALIRAN REFRIGERANT PADA SISTEM REFRIGERASI Nanang Ruhyat; Rahmat Wahyudi
SINERGI Vol 19, No 1 (2015)
Publisher : Universitas Mercu Buana

Kebutuhan akan mesin pendingin udara di Indonesia sangat tinggi karena iklim tropis yang menyebabkan Indonesia memiliki dua musim, yaitu musin kemarau dan musin penghujan. Namun pada beberapa tahun ini, musim kemarau atau secara awam dikatakan musim panas, terasa lebih panjang dibanding musim hujan. Sistem refrigerasi dipilih untuk kebutuhan pendingin udara di Indonesia khususnya dan asia pada umumnya. Sistem refrigrasi terdiri dari evaporator, condenser, kompresser dan katup ekspansi. Efek pendinginan terjadi di evaporator, dimana cairan refrigerant berubah menjadi uap atau yang disebut dengan proses evaporasi. Pada penelitian ini, evaporator dirancang menggunakan beberapa diameter tube pipa evaporator, yaitu : 0,005435 m, 0,007036 m, 0,008103 m, 0,008407 m, 0,009398 m, 0,010338 m, 0,011278 m, 0,00125 m, 0,012954 m dan 0,014224 m. Perancangan evaporator untuk biaya perancangan yang optimum dipilih pada rancangan dengan Din 0,009398 m dan Dout 0,0127 dengan panjang tube 5,08 m karena ukuran dan panjang tube yang tidak terlalu besar dan panjang.

ANALISA PERBANDINGAN MECHANICAL DAN ELECTRICAL PROPERTIES TERHADAP PENAMBAHAN JUMLAH KANDUNGAN OKSIGEN PADA BATANG TEMBAGA DIAMETER 8MM Nanang Ruhyat; Agung Pramu Aji
SINERGI Vol 17, No 3 (2013)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (587.257 KB)

Kandungan oksigen sangatlah berpengaruh terhadap mekanikal dan electrical properties pada batang tembaga. Pengujian terhadap 4 (tiga) sample yang mempunyai kandungan oksigen yang berbeda memberikan hasil beberapa sifat mekanikal dan elektrikal yang berbeda, di antaranya sample 1 dengan kandungan oksigen 169.2 ppm mempunyai tensile strength 22.26 kg/mm2, regangan (elongation) 43.40%, modulus young 51.22kg/mm2, electrical conductivity 102.6%IACS, resistivity at 20°C 1.6796 µΩ.cm, sample 2 dengan kandungan oksigen 317.16 ppm mempunyai tensile strength 22.70 kg/mm2, regangan (elongation) 41.80%, modulus young 54.49 kg/mm2, electrical conductivity 101.80%IACS, resistivity at 20°C 1.6935 µΩ.cm, sample 3 dengan kandungan oksigen 387.18 ppm mempunyai tensile strength 23.42 kg/mm2, regangan (elongation) 40.50%, modulus young 57.81 kg/mm2, electrical conductivity 101.60%IACS, resistivity at 20°C 1.6954 µΩ.cm, sample 4 dengan kandungan oksigen 465.66 ppm mempunyai tensile strength 23.98 kg/mm2, regangan (elongation) 38.13%, modulus young 62.90 kg/mm2, electrical conductivity 101.13%IACS, resistivity at 20°C 1.7047 µΩ.cm.

Analysis of Changes in ACM Performance in PK-XXX Aircraft with Modification of Cleaning Method to Get a Comfortable Temperature Antonius Angga Andriawan; Nanang Ruhyat; Michael Kirkland Ngala
Journal of Integrated and Advanced Engineering (JIAE) Vol 2, No 1 (2022)
Publisher : Asosiasi Staf Akademik Perguruan Tinggi Seluruh Indonesia (ASASI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51662/jiae.v2i1.38

Airplanes are a mode of transportation that people are interested in because they have a relatively short travel time and long distances. Therefore, aircraft is a means of transportation with a high level of safety. One level of safety comes from the aircraft's Air Conditioning (AC) system, which functions as a temperature controller for the aircraft during flight and as a pressure protector during flight. Various components make up an aircraft AC system, one of which is the Air Cycle Machine (ACM). Where the ACM changes the temperature to extremes from hot to cold, the ACM becomes fouling, thereby reducing the performance of the ACM itself and causing an increase in the cabin temperature of the aircraft. This problem was solved by a different cleaning method, first using Aluminum Solution and second without using Aluminum Solution. The difference in cleaning methods aims to determine the right cleaning method to overcome the existing problems. The results showed that power without using aluminum solution gave 49.802 kJ/s in 5 minutes and 54.771 kJ/s in 10 minutes, while power using aluminum solution showed 40.1705 kJ/s in 5 minutes and 61.4155 kJ/s in 10 minutes. This indicates that the use of Aluminum solution requires greater power after the ACM rotates for 10 minutes, affecting the efficiency of the ACM itself. The results prove that the cleaning method without aluminum solution gives results of 140.6% at 5 minutes and 90.34% at 10 minutes compared to before.

Hydrodynamic study of drying on Qisthi Hindi using a Fluidized Bed Dryer Nanang Ruhyat; Haris Ilman Fiqih; Jessi Ray Mardhatilla; Firman Maulana; Fajar Anggara; Dewi Murniati
Journal of Integrated and Advanced Engineering (JIAE) Vol 2, No 2 (2022)
Publisher : Asosiasi Staf Akademik Perguruan Tinggi Seluruh Indonesia (ASASI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51662/jiae.v2i2.67

A Fluidized Bed Dryer (FBD) is one of the most efficient and prominent moisture-reducing dryers in the food, chemical, and pharmaceutical industries. This work investigates changes in moisture content and drying rate in the FBD with a dense bed as a perforated plate and uses an indirect heating medium. Here the air flows by the blower and acts as a dryer after passing through the heater to reduce the moisture content contained in the material. Qisthi Hindi can be used as herbal medicine for several diseases such as asthma, cough, diabetes, and liver and stomach problems. It can even be consumed during the COVID-19 pandemic. The Qisthi Hindi root has a fairly high calcium and protein content, so drying must be carried out at moderate temperatures because it is a heat-sensitive material. Drying using FBD is carried out at temperatures ranging from 50-100 °C. On air drying at 50 °C, the protein content increased by 3.13%, calcium content increased by 29% from the levels before drying, and water content decreased by 5.3%. At the drying air temperature of 100 °C, the protein content decreased to 3.87%, and the calcium content decreased by 15% from drying at 50 °C. FBD reduced the moisture content significantly in Qisthi Hindi, which is heat sensitive.

Adsorption Analysis of Green Shells as Temperature Reducer In Coolbox Nanang Ruhyat; Ahmad Afif
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 3, No 2 (2022)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v3i2.61

: Green mussels (Perna Viridis) are a source of seafood consumed by the Indonesian people with a fairly high percentage. The high consumption rate is followed by a high amount of processing waste in the form of shells that are allowed to accumulate. Generally, waste shells are only used as handicrafts or wall decorations. In this study, green mussel shell waste (Perna Viridis) was used as an adsorbent medium to reduce air temperature, besides that, it was used to test motorcycle exhaust emissions. The test is carried out by placing the adsorbent in a cool box which is tested on the heater as a heat source with temperature variations in the control heater 80, 100, 150 and motorcycle exhaust gas with variations in engine speed of 2500 rpm, 3900 rpm, 4700 rpm. The test results on the heater show that the green mussel shells have been able to reduce the temperature by or 35% of the heat source. Furthermore, in testing the exhaust gas of the motor at 4700 rpm with a temperature of 170°C it can be reduced by or 71.48% of the heat source. In addition, the cool box is also able to reduce motorcycle exhaust emissions, especially CO2 by 2,6 %. Thus, green mussel shells can be used as an alternative medium for adsorbents

Green Mussel Shells (Perna Viridis) To Reduce the pH Of Liquid Waste Resulting from Tofu Processing Nanang Ruhyat; Syukur Pribadi
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 3, No 2 (2022)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v3i2.60

The food processing industry in every production process always produces waste. One of the food industries in the Jakarta area is the tofu making industry. Waste from the tofu processing process is divided into 2 types, liquid waste and solid waste. Problems that arise include the occurrence of deposition and decomposition of organic matter in water bodies which causes silting of rivers, and causes unpleasant odors. An alternative solution to reduce the pollution load is to use filter media with material from green mussel shells (Perna viridis). Meanwhile, green scallop shells are solid waste for the environment which were used in this study as a filter medium for the liquid waste left over from tofu processing and tested in the home-scale tofu processing industry in the Semanan area, West Jakarta. The test results on the pH level of the waste, green mussel shells have been able to reduce the degree of acidity by up to 52%. Visually, turbidity and foam in the liquid waste from tofu processing are reduced. It is undeniable that filter media from green mussel shells can be used as an alternative filter material for liquid waste. This research has succeeded in reducing the impact of liquid waste pollution from tofu processing

Ekstraksi Magnesium Hidroksida dari Air Sisa Pembuatan Garam Menggunakan Teknologi Pengeringan Semprot (spray dryer) Hariyanto Triwibowo; Nanang Ruhyat; Dwiyoga Nugroho; Fajar Yudi Prabowo
Jurnal Kelautan Nasional Vol 17, No 3 (2022): DESEMBER
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkn.v17i3.11417

Indonesia memiliki potensi besar dalam pemanfaatan sumberdaya non hayati laut. Salah satu potensi tersebut ialah garam laut. Kepulauan Indonesia dipengaruhi oleh iklim basah akibat curah hujan yang menyebabkan kegiatan penambangan garam dari laut untuk kebutuhan konsumsi memiliki kandungan kemurnian NaCl di bawah kebutuhan standar untuk industri. Namun, terdapat kandungan Magnesium Hidroksida Mg(OH)2 yang dapat diekstrasi sebagai nilai tambah produksi garam indonesia. Metode umum yang digunakan untuk mendapatkan Mg(OH)2 ialah dengan membentuk gel dengan menambahkan soda api (NaOH2) pada proses penguapan berulang dari air limbah garam (air tua) di tambak garam. Lebih lanjut, gel yang terbentuk perlu dicuci menggunakan air tawar untuk menghilangkan NaCl. Metode umum tersebut membutuhkan waktu pengeringan yang lama dan lahan yang luas. Penelitian ini bertujuan menyediakan teknologi untuk mempercepat ekstraksi Mg(OH)2 berkualitas baik yang memanfaatkan lahan kecil dengan menggunakan spray dryer. Dari hasil percobaan spray dryer, didapatkan hasil waktu rata-rata untuk proses penguapan droplet ialah 2 detik. Sedangkan dari hasil perhitungan waktu tinggal bahan di dalam tabung pengering spray dryer berkisar 2,5 detik. Seluruh penguapan droplet untuk melepaskan H2O terjadi di dalam tabung pengering. Simulasi hasil produksi magnesium hidroksida menggunakan alat spray dryer dalam waktu 24 (dua puluh empat) jam dapat menghasilkan lebih kurang 235,44 kg senilai Rp 9.394.056 dengan tingkat efiensinya lebih kurang 98%.

Analysis of Drying Air Temperature on Moisture Content in Coffee Beans Using a Fluidized Bed Dryer with Perforated Plates Nanang Ruhyat; Haris Ilman Fiqih; Hilmy Nurfuad
Food Science and Technology Journal (Foodscitech) Vol. 5 No. 1 (2022)
Publisher : Universitas Dr Soetomo

Fluidized Bed Dryer with perforated plate bed is used as drying for coffee processing. This study succeeded in reducing the water content of coffee beans by 0.11% within 30 minutes of drying more evenly with fluidization on coffee beans. The level of maturity of coffee beans can be achieved at a control set temperature of 200°C the coffee beans undergo a light roasting process with the center of the coffee beans receiving 83.8°C, at a temperature of 250°C the coffee beans undergo a medium roasting process with the center of the coffee beans receiving 130°C, and at the control set temperature of 300°C the coffee beans underwent a dark roasting process with the center of the coffee beans receiving a temperature of 107.6°C. The advantage of this Fluidized Bed Dryer with perforated plate bed compared to other mechanical dryers lies in its low energy requirements, which depend on the heater and blower power as its main components.

Co-Authors Agung Pramu Aji Agung Pramu Aji, Agung Pramu Ahmad Afif Alexander, Baimy Antonius Angga Andriawan Ayu Arwati, I G. Cholik, Abdul Dafit Feriyanto Desti Dorion, L. B. Dewi Murniati Dwiyoga Nugroho Engkos A. Kosasih, Engkos A. Erna Multahada Faizal Fajar Anggara Fajar Yudi Prabowo Firdianto, Ade Firman Maulana Fitri , Muhammad Ginting, Dianta Hadi Pranoto Hardi Gunawan Haris Ilman Fiqih Haris Ilman Fiqih Hariyanto Triwibowo Hilmy Nurfuad Imam Hidayat Jessi Ray Mardhatilla Kamandanu, Ikhsan L. B. Desti Dorion martolis tolis jasani Michael Kirkland Ngala Mohammad Ihsan Muhammad, Firhan Adji Noviyanto, Alvian Nurato , Nurato Putra, Jouvan Chandra Pratama Rifai, Moh Sahal Romahadi, Dedik Sagir Alva Sari, Wedha Sentot Novianto, Sentot Sirait, Alfa Firdaus Surachman, Arief Swardhamana, Putut Jaya Syukur Pribadi Tyas Wedhasari, Tyas Utama, Tri Yoga Wahyudi Rahmat

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