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All Journal Jurnal Inotera Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Teknik Sipil dan Teknologi Konstruksi JURNAL PENGABDIAN AGRO AND MARINE INDUSTRY Jurnal Polimesin

Al Munawir

JURUSAN TEKNIK MESIN FAKULTAS TEKNIK UNIVERSITAS TEUKU UMAR

Author-ID : 2726967

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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ANALISA BAHAN BAKAR SERABUT DAN CANGKANG PADA KATER UAP KAPASISTAS 20 TON/JAM DI PT. BEURATA SUBUR PERSADA Mirza Fazillah ma; Al Munawir; Joli Supardi; Muzakir Muzakir
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 7, No 2 (2021): Oktober
Publisher : universitas teuku umar

Limited Liability Company (PT) Beurata Subur Persada is a large company engaged in palm oil processing with an area of approximately 23 hectares of activity. In the processing there is a steam catter/boiler working tool. This steam boiler engine is often used as a production engine in industrial companies. Steam boiler or boiler is a container that is very tightly closed in which the heat of combustion flows until hot steam is formed. The analysis uses a data processing application, then the calculation and data retrieval starts from march 11 to August 13 2021. The results of the study state that the components of the steam boiler at a capacity of 20 Tons/hour are the most important, namely the burner, evaporator pipe, combustion chamber, water reservoir. from economizers, superheaters, steam heaters and ash or ash collection devices from combustion. Calculations at a high calorific value (HHV) of 5,691.17 Kcal/Kg and a low calorific value (LHV) of 4,608.96 Kcal/Kg used shell and fiber fuel with a ratio of 3:1 with a percentage of 25% shell and 75% fiber. Keywords: Steam Boiler,Heat Value, PT. Beurata Subur Persada

Pengaruh dari Direct Field Component pada Ruang Akustik dengan menggunakan SEA Model Al Munawir; Herri Darsan; Murhaban Murhaban
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 5, No 2 (2019): Oktober
Publisher : universitas teuku umar

Statistical Energy Analysis (SEA) is a well-known method to analyze the flow of acoustic and vibration energy in a complex structure. This study investigates the application of the corrected SEA model in a non-reverberant acoustic space where the direct field component from the sound source dominates the total sound field rather than a diffuse field in a reverberant space which the classical SEA model assumption is based on. A corrected SEA model is proposed where the direct ﬁeld component in the energy is removed and the power injected in the subsystem considers only the remaining power after the loss at ﬁrst reﬂection. Measurement is conducted a box divided into two rooms separated by a partition with an opening where the condition of reverberant and non-reverberant can conveniently be controlled. In the case of a non-reverberant space where acoustic material was installed inside the wall of the experimental box, the signals are corrected by eliminating the direct ﬁeld component in the measured impulse response. Using the corrected SEA model, comparison of the coupling loss factor (CLF) with the theory shows good agreement.

DESAIN MESIN PRODUKSI SANTAN SISTEM SENTRIFUGAL KAPASITAS 10 LITER/ JAM Darwin Hendri; Herdi Susanto; Al Munawir
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 6, No 1 (2020): April
Publisher : universitas teuku umar

Coconut processing that still uses traditional methods, of course this is not efficient considering the long time of extortion and also requires a lot of energy for extortion. The purpose of this research is to design and manufacture centrifugal system coconut milk squeezer integrated with the grating process. The research method is carried out by the calculation of the main components of the machine and followed by component design using software. The results of this study explain that the design of coconut milk production machines with a power of 0.746 Kw using a 1 Hp power motor with 2850 rpm rotation, tube capacity of 10 liters per hour, tube torque in 25,812 Nm, shaft diameter 20 mm, clutch diameter 21 mm, bearing diameter 21 mm . The results of the design of coconut milk production machines with dimensions of length 600 mm, width 600 mm, and height 1200 mm Keywords— Coconut, coconut milk, component design, centrifugal force.

Rancang Bangun Turbin Angin Skala Kecil Untuk Kawasan Kampus Univ. Teuku Umar Maidi Saputra; Riki Kurniawan; Al Munawir
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 5, No 1 (2019): April
Publisher : universitas teuku umar

Energi merupakan salah satu kebutuhan utama dalam kehidupan manusia. Pengembangan PLTB (Pembangkit Listrik Tenaga Bayu) pada kawasan kampus Univ. Teuku Umar perlu diteliti, mengingat kapasitas dan potensi energi angin yang tersedia. Berdasarkan analisa diatas, maka perlu dilakukan penelitian tentang rancang bangun turbin angin skala kecil untuk kawasan kampus Univ. Teuku Umar. Penelitian ini dilaksanakan dan berlokasi di workshop Teknik Mesin Universitas Teuku Umar, Meulaboh. Desain pembangkit listrik tenaga angin tipe horizontal menggunakan software skethup pro 2016 dan AutoCAD. Beberapa data ditentukan sebagai dasar untuk merancang turbin angin sumbu horizontal di antaranya daya (????), tinggi hub, jumlah sudu, tip speed ratio (????), koefisien daya (Cp), penampang Airfoil. Setiap jenis airfoil memiliki nilai drag, lift, dan sudut serang yang berbeda. Perakitan pembangkit listrik tipe horizontal ini dilakukan dengan tahapan yaitu: memasang semua komponen pada turbin angin seperti: kerangka, rumah turbin, generator, mekanisme yaw, dan hub.

Stiffness-based Spring Design Optimization using Taguchi Method to reduce Low-Frequency Vibration Ahmad Yusuf Ismail; Al Munawir; Noerpamoengkas A
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 5, No 2 (2019): Oktober
Publisher : universitas teuku umar

Low-frequency vibration has been troublesome for a mechanical system. Despite the measurement difficulties, low-frequency vibration also creates several environmental effects such as high noise level that is harmful to the human body. One of the methods to reduce vibration is tuning the vibration isolation i.e. spring and damping coefficient. However, the latter method is found to be effective only for the mid-high frequency range. Therefore, this paper proposes an optimization of the spring a.k.a. stiffness coefficient in order to reduce the low-frequency vibration. The Taguchi method is used as an optimization tool since it offers simplicity yet powerful for any field of application, particularly in engineering. Two significant parameters in the spring geometry were selected as the optimization variable in the Taguchi method and evaluated using vibration transmissibility concept. The result shows that the Taguchi method has been successfully obtained the optimum value for the spring geometry purposely to reduce the vibration transmissibility.

KAJI KARAKTERISTIK PERPINDAHAN PANAS PENGARUH BELOKAN TAJAM PADA PENUKAR KALOR TIPE TUBE Zulfan Zulfan; Ahmad Syuhada; Zahrul Fuadi; Al Munawir
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 6, No 2 (2020): Oktober
Publisher : universitas teuku umar

Using the thermal machines in the production process or overdone heat power operation require unit of Heat Exchanger (HE) having high level heat transfer coefficient (hc) for transferring to the thermal reservoir. Experimental studies have been done for heat transfer characteristics of forced convection on the round duct with method use that compare three of heat exchanger with a variety of pipe bends and a long pass after a turn that is different. HE pipes have length of tube 500 mm with a 12 bends, HE pipes length of tube 250 mm with 24 bends and HE pipes length of tube 125 mm with 48 bends. The heat fluid flowed into the tube, and the tube is immersed in the cold water tank. For each of test equipments can be done three times experiment with different variations in inlet temperature that is at 600C, 700C and 800C, with a duration of 5 minute intervals for 50 minutes. Many pipe bends and short passes after a HE will increase turbulence flow pattern. The high of turbulence will increase the value of heat transfer coefficient, but it can hold on fluid flow rate. Keywords : heat transfer characteristics, round duct, sharp bends, long pass

Uji Kebisingan pada Motor Listrik dan Tabung Sentifugal Mesin Produksi Santan Kapasitas 10 Liter Per Jam Herdi Susanto; Al Munawir; Herri Darsan
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 7, No 1 (2021): April
Publisher : universitas teuku umar

Noise standards on a machine are very important to consider before the machine is produced, because it can cause discomfort to the operator and damage hearing function. The noise standard has been set by OSHA, the maximum noise threshold value of 85 dB is considered safe for most workers when working 8 hours / day. The coconut milk production machine with a capacity of 10 liters per hour was carried out by measuring the noise level which aims to determine whether the machine meets the noise standard criteria. The test was carried out at three levels of motor rotation, namely 1000 rpm, 1500 rpm, 2000 rpm with a noise measuring distance of 0.5 meters from the component parts of the electric motor and centrifugal tube using a sound level meter. The results of measurements of noise levels on electric motors and centrifugal tubes of coconut milk production machines with a capacity of 10 liters per hour can be concluded that the noise level value of the production machine meets the noise standard level required by OSHA 1978, where the maximum production machine noise level is at 75 dB while that which is implied by OSHA 1978 maximum is at 85 dB. Keywords— OSHA standards, electric motor, centrifugal tube, noise test

Preventive Maintenance Analysis on Stationery Spot Welding Solihin Solihin; Murwan Widyantoro; Al Munawir
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 7, No 2 (2021): Oktober
Publisher : universitas teuku umar

AbstractMaintenance is all activities needed to maintain or maintain the quality of equipment or machines to keep them functioning properly, for that maintenance is very important at PT. XYZ.Smooth production is highly dependent on the reliability and readiness of the machine, therefore a maintenance policy is needed by determining the priority of the machine to be maintained so that the reliability of the machine is maintained. The machine under study is the Stationery Spot Welding machine for both assy parts and body parts. The distribution model used is the exponential distribution model, from the form of the data it can be determined treatment. The data needed are machine working hours data, corrective maintenance time data, SDT (supply delay time) and ADT (administrative delay time) data, as well as preventive maintenance data. From the exponential distribution pattern, the cumulative function values, lamda, machine reliability, MTBF (mean time between failure), MTBM (mean time between maintenance), machine readiness time (availability) for each machine will be obtained. From the results of data processing, the reliability of the Stationery Spot Welding machine type SSW-35-Ndz, type SSW-50-Ndz, and type SSW-70-Ndz is 36.7%. This shows a very low level of reliability, therefore preventive maintenance is needed. In addition to reliability, MTBM is also obtained as a preventive maintenance schedule on the SSW-35-Ndz engine once every 1023 hours, the SSW-50-Ndz engine every 628 hours and the SSW-70-Ndz engine every 628 hours. Keywords : Maintenance, Preventive, Reliability, MTBF, MTBM

EFEKTIVITAS PERAWATAN UNIT BOILER: STUDI KASUS DI PT. BEURATA SUBUR PERSADA Maidi Saputra; Redha Kurniawan; Al Munawir
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 6, No 1 (2020): April
Publisher : universitas teuku umar

A boiler is a tool used to produce steam that is used for various purposes in palm oil mills. In a boiler system, the readiness and conditioning of the equipment are considered to meet the planned production targets. Maintenance, in particular on a boiler unit, is something that must be considered and essential to implement. This study aims to get an overview of the maintenance of the boiler unit at PT. Beurata Subur Persada. This research uses several methods in getting the desired results, including descriptive data collection/field interviews, from the observation and interview process with PT. Beurata Subur Persada, the planning of the maintenance process by factory conditions, is planned maintenance. Keywords: Boiler, Palm oil mills, Maintenance, Planned maintenance, PT. Beurata Subur Persada

Pengukuran Sound Pressure Level (SPL) dalam kabin mobil dengan menggunakan SEA Model Al Munawir; Murhaban Murhaban; Zulfan Zulfan
Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi Vol 6, No 2 (2020): Oktober
Publisher : universitas teuku umar

Statistical energy analysis (SEA) is a well-known method to analyze the flow of acoustic and vibration energy in a complex structure. For an acoustic space where significant absorptive materials are present, direct field component from the sound source dominates the total sound field rather than a reverberant field, where the latter becomes the basis in constructing the conventional SEA model. Such environment can be found in a car interior and thus a corrected SEA model is proposed here to counter this situation. The model is developed by eliminating the direct field component from the total sound field and only the power after the first reflection is considered. A test car cabin was divided into two subsystems and by using a loudspeaker as a sound source, the power injection method in SEA was employed to obtain the corrected coupling loss factor and the damping loss factor from the corrected SEA model. These parameters were then used to predict the sound pressure level in the interior cabin using the injected input power from the engine. The results show satisfactory agreement with the directly measured SPL.Keywords : Statictical Energy Analysis (SEA), Sound Pressure level (SPL), DLF and CLF

Co-Authors Ahmad Syuhada Ahmad Yusuf Ismail Andrisman Satria Ardi Noerpamoengkas Bambang Tripoli Darwin Hendri dian febrianti Fajri Hadi Farizal, Teuku Firzan Firzan Herdi Susanto Herri Darsan Irmalis, Amsal Luh Putu Ratna Sundari Maidi Saputra Masykur Masykur Mirza Fazillah ma Murhaban Redha Kurniawan Riki Kurniawan Riski Arianda Solihin Solihin Supardi, Joli Widyantoro, Murwan Zahrul Fuadi Zakaria Husen Zakia Zakia Zuchra Ulfa Zulfan Zulfan

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