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ANALISIS SCALING KETEL UAP PIPA API DI INDUSTRI TEKSTILCIREBON Yudisworo, W. Djoko
ENGINEERING Vol 4, No 1 (2012)
Publisher : ENGINEERING

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Penelitian terhadap unjuk kerja Ketel uap (Boiler steam) Pipa Api di sebuah Industri Jaring berawal dari permasalahan timbulnya cleaning interval yang berlangsung setiap dua kali dalam setahun. Penelitian diawali dengan pencatatan data operasional instalasi ketel uap terpasang di Industri jaring selama enam bulan.Melalui analisa perhitungan didapatkan adanya penurunan panas yang diterima oleh fluida dingin sebesar 0,881 kW sampai pada 0,995 kW pada akhir pengujian 1704 jam. Selain itu deposit pertumbuhan kerak (fouling) yang terjadi pada 1176 jam dengan harga faktor pengotor 0.0000712 m2.K/W. Penurunan kinerja pada ketel uap dapat berimplikasi pada proses produksi maupun pada peningkatan biaya produksi. Penurunan ketel uap biasanya ditandai dengan tingginya suhu cerobong dan penurunan perpindahan panas yang akan diterima oleh fluida air di dalam pipa/ tube. Indikasi lain adalah penurunan efektifitas ketel uap pipa api. Dengan mempelajari faktor-faktor yang berpengaruh terhadap unjuk kerja ketel uap ini salah satunya dengan mengetahui interval cleanin g yang di sebabkan oleh faktor pengotor (Fouling). Dengan memperpanjang masa interval cleaning sehingga akan menghemat biaya produksi dan proses produksi akan berlangsung dengan baik.Kata kunci : Ketel Uap Pipa Api, Faktor

KARAKTERISASI MATERIAL KOMPONEN KATUP HISAP & BUANG ORIGINAL DENGAN LOKAL SEPEDA MOTOR HONDA ASTREA GRAND Yudisworo, W Djoko; Heri, Junial
ENGINEERING Vol 9, No 2 (2014): Oktober
Publisher : ENGINEERING

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Penyelidikan mengenai struktur suatu material logam dengan menggunakan peralatan optic (microskop optic) di kategorikan ke dalam pengujian metalografi.Dengan jalan ini struktur dan sifat logam dapat diketahui, pengujian metalografi memegang peranan penting dalam pengelolahan logam, karena dari pengujian ini dapat diketahui proses pembuatan material logam yang cocok untuk setiap konstruksi elemen mesin. Material logam yang akan di uji dalam percobaan di laboratirium metallurgi I.S.T.N berupa baja karbon dan besi murni. Proses pengujian metalografi yang di lakukan meliputi: cutting ,mounting, grinding (pengampelasan), polising (pemolesan) dan pengetesaan terhadap permukaan benda uji kemudian di lakukan pengujian lewat microscope dan untuk kemudian diabadikan lewat pemotretan. Jadi pengujian metalorgrafi memberikan gambaran yang pasti tentang struktur dan sifat dari material logam.Kata Kunci : Struktur Mikro, Katup, Metalografi, Microscope Metalurgi

STUDI ALTERNATIF PENGGUNAAN BBG GAS ELPIJI UNTUK BAHAN BAKAR MESIN BENSIN KONVENSIONAL Yudisworo, W. Djoko
ENGINEERING Vol 8, No 1 (2014): April
Publisher : Universitas Pancasakti Tegal

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Studi ini dilakukan menggunakan metode kajian literatur yang diambil dari jurnal ilmiah, prosiding, laporan penelitian dan artikel cetak maupun elektronik yang terkait yang difokuskan di Kota Cirebon dan sekitarnya karena memiliki cukup banyak angkutan umum kota. Hasil penelitian menunjukkan bahwa, jumlah angkutan umum yang ada di Kota Cirebon dan sekitarnya adalah +/- 10.774 kendaraan dengan bus besar (BB) berjumlah 463 unit, MPU 6.180 unit dan Taxi 4.131 unit. Penghematan yang dapat dilakukan jika BBM dikonversi ke BBG yaitu untuk BB Rp 137,305,480,087,-; MPU Rp 293,234,684,040,-; Rp 343,020,524,206,- dan total penghematan Rp 773,560,688,334,-. Sedangkan keuntungan yang diperoleh yaitu BB Rp 131,749,480,087,-/tahun ;Rp 219,074,684,040,-/tahun; Rp 293,448,524,206,-pertahun dengan total keuntungan Rp 644,272,688,334.00/tahun. Pengurangan emisi gas buang seluruh jenis angkutan umum yaitu untuk CO2 39.325,1 Kg/tahun; CO 849.422,2 Kg/tahun; NOx 672.459,20 Kg/tahun; HC 99.099,25 Kg/tahun; Partikel Berat 842.343,60 Kg/tahun. Total perhitungan CDM yang didapatkan Rp 250.264.935,- Kata Kunci: bahan bakar gas , konversi, mesin konvensional

Comparative Analysis of the Performance of Ice Cream Making Machines Using Variations in Capillary Pipe Diameters Ferry Sugara; Waluyo Djoko Yudisworo; Karsid Karsid
Mestro Vol 3 No 02 (2021): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v3i02.369

Current refigeration technology has an important influence in improving the quality of food products. The purpose of this study is to find out how much the difference in performance generated from the expansion device in the form of two capillary pipes of different diameters and know the power consumption of electricity used, so that it knows the electric power per day. The method used in this study is to test the ice cream maker refrigeration system, by testing its performance by measuring the temperature and pressure in each main component when the system is steady. The results of the actual COP value of the average capillary pipe diameter of 0.028 inches are 2.16 while the actual COP value of the average capillary pipe diameter of 0.031 inches is 2.74. And the actual COP value of a 0.028 inch diameter capillary tube has a greater value of 2.16 while a capillary pipe with a diameter of 0.031 inches has a smaller value of 1.88. Whereas the biggest value of refractive efficiency at the average value is a capillary pipe with a diameter of 0.028 inches of 63.58%. While for capillary pipes with a diameter of 0.031 inches smaller the value of refraction efficiency averaged 59.49% and the cabin temperature in capillary pipes with a diameter of 0.028 inches, the average value was -9.82 0C. While for capillary pipes with a diameter of 0.031 inches smaller it has a cooler average value of -9.09 0C.

Design and Manufacturing of Organic Waste Chopping Machines Endang Prihastuty; Bobby Saputra; W. Djoko Yudisworo
Mestro Vol 3 No 02 (2021): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v3i02.373

This research was conducted to find a solution to the problem of waste, especially organic waste which is generated from households and shopping centers, especially traditional markets. Many people do not understand how to deal with waste properly. The most common way that most people do is by burning organic waste. This has a negative impact on the environment and public health itself. Therefore it is necessary to do research on how this organic waste can be utilized for the benefit of society. One way to overcome the problem of organic waste is to make an organic waste chopper. The machine is equipped with a knife designed in such a way that it is capable of cutting to small sizes. In this study, this organic waste chopping machine will be used to produce pieces of waste which will then be used as biogas reactor material. To be continued in the process of making biogas. From the research results obtained the following machine specifications: Machine size with a length of 0.704 m, a width of 0.413 , and a height of 0.601 m. This organic waste shredder uses a motor with a power of 5.5 hp, a belt length of 798.47 mm, a drive pulley rotation of 2784.65 rpm and a blade rotation speed of 7.35 m/s.

Performance Testing of Centrifugal Pump Type with 3 Hp Power Wasiran Wasiran; Waluyo Djoko Yudisworo; Endang Prihastuty
Mestro Vol 4 No 02 (2022): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v5i02.365

Pumps are fluid machines whose uses are very broad and important, ranging from industry to household needs. Selection of pump performance characteristics is very important and must be adjusted to the needs which include: discharge, head, power, and rotation. The performance characteristics of the pump are obtained through testing. In connection with the importance of information about pump performance characteristics, through this research activity efforts will be made to test centrifugal pumps using 3 hp of power. In this research, the data obtained from the direct test results will be entered, where the test is carried out at the Machine Performance Test Laboratory. In this test, the pump pressure data obtained from the gauge gradually with several valve openings, then the data is entered into the data table that has been prepared. The test was carried out to test the ability of the centrifugal pump test equipment using 3 HP power which was prepared as one of the laboratory pump test equipment for engine performance testing. In testing the centrifugal pump there are 3 variables that will be used to carry out the test, namely the first by using a tachometer which is useful for measuring shaft rotation, the second by using a Bordoun manometer which is useful for measuring fluid pressure, the third by using an orifice which functions to measure speed fluid.

Pembangunan Jaringan Distribusi Air Bersih bagi Masyarakat Desa Sonawan, Hery; Hermawan, M. Reza; Sofia, R. Evi; Rohadin, Rohadin; Prihastuty, Endang; Yudisworo, W. Djoko; Subiyanta, Erfan; Siswanto, Agus; Tohasan, Achmad; Wasiran, Wasiran; Heri, Junial
Berdikari: Jurnal Inovasi dan Penerapan Ipteks Vol 12, No 1: February 2024
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/berdikari.v12i1.20276

The community service activities in Kaduela Village, which were part of a matching fund program for the year 2023, were executed from July–December 2023 in accordance with the proposed activity plan. The objective of this initiative was to establish a comprehensive water pipeline infrastructure to provide clean water to the inhabitants of Bina Loka and Bina Bakti Hamlet, who lacked access to the numerous springs located in Kaduela Village. Proper and comprehensive piping planning was necessary to provide equitable distribution of water among community members in the two elevated hamlets relative to the water source. The process of addressing issues in Kaduela Village involved several sequential steps. These steps encompassed the collection of primary and secondary data, the depiction of the new piping network on a map of Kaduela Village, the simulation of the new piping network using Epanet software, the construction of the new piping network, and the subsequent commissioning of the system. The chosen pipe network configuration is a dead-end system, which was deemed appropriate for implementation in the Bina Loka and Bina Bakti hamlets, with the aim of providing water services to a total of 58 households in Bina Loka and 15 households in Bina Bakti. The process of pipeline network designing was conducted by Mechanical Engineering students from Universitas Pasundan and Universitas 17 Agustus 1945 Cirebon, under the supervision of their respective supervisors, utilizing the Epanet software. In addition to receiving funding under the 2023 matching fund program, this initiative also garnered comprehensive support from the BUMDES Arya Kamuning as the primary collaborator

Analysis Effect Blade Distance on the Performance of Microhydro Power Plants Prihastuty, Endang; Yudisworo, Waluyo Djoko; Tohasan, Achmad; Maldiesa, Maldiesa; Subiyanta, Erfan
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.528

Microhydro power plants are small-scale power plants that use hydropower as their driving force. The hydropower used can be in the form of water flows such as irrigation canals, rivers or natural waterfalls. Microhydro power plants principally utilize the height and amount of water flow discharge per second on the water flow of irrigation canals, rivers or waterfalls. This flow of water rotates the turbine shaft so as to produce mechanical energy. One of the components in microhydro power plants is a turbine. The type of turbine used in low-head water flow is a screw turbine. This study discusses the effect of blade distance on the performance of microhydro power plants. The change in blade spacing given is 15 cm, 20 cm and 22 cm spacing with a 40-degree blade slope. From changes in blade spacing greatly affect the power and efficiency of the turbine. The highest power is generated by the use of 15 cm blades of 1267 watts. The efficiency of the turbine is also affected by the power generated by the turbine itself. The highest turbine efficiency is produced by the use of a blade distance of 15 cm of 37.25%, the closer the distance between the blades the greater the power and efficiency generated in the turbine itself.

Rear Wheel Drive Sprocket Gear Transmission Design for Electric car Tohasan, Achmad; Prihastuty, Endang; Yudisworo, W. Djoko
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.539

Electric vehicle engines are the same as vehicles with combustion motors, namely they are an assembly of several mechanisms consisting of three main parts, namely the drive, the power transmission system and the driven part. The electric car used for this research is a conversion of a petrol car, where the drive uses a 3 KW BLDC electric motor. The BLDC motor shaft power is transmitted to the axle pinion shaft using a sprocket gear transmission. So an analysis of the sprocket gear design, both ratio, size (type), strength and age of the sprocket gear to be used needs to be carried out. The initial step is to calculate the design power by looking at the correction factors in the table for the type of electric motor drive, then determining the chain number on the graph by first calculating the torque moment. The linear speed of the chain that occurs is influenced by the size of the gears and the input rotation of the electric motor, the greater the speed, the smaller the torque, so the gear ratio needs to be considered in determining the maximum linear speed. After knowing the chain plan number, it can be tested by calculating whether the chain number technically meets good security or not. In this research, the sprocket chain design, namely chain roller number 40 with a maximum load of 33.74 kg, is good, namely greater than sf = 6.

Analisa Perbandingan Kinerja Mesin Pembuat Es Krim Menggunakan Variasi Diameter Pipa Kapiler Sugara, Ferry; Yudisworo, W. Djoko
Mestro: Jurnal Teknik Mesin dan Elektro Vol 7 No 1 (2025): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v2i02.321

Current refigeration technology has an important influence in improving the quality of food products. The purpose of this study is to find out how much the difference in performance generated from the expansion device in the form of two capillary pipes of different diameters and know the power consumption of electricity used, so that it knows the electric power per day. The method used in this study is to test the ice cream maker refrigeration system, by testing its performance by measuring the temperature and pressure in each main component when the system is steady. The results of the actual COP value of the average capillary pipe diameter of 0.028 inches are 2.16 while the actual COP value of the average capillary pipe diameter of 0.031 inches is 2.74. And the actual COP value of a 0.028 inch diameter capillary tube has a greater value of 2.16 while a capillary pipe with a diameter of 0.031 inches has a smaller value of 1.88. Whereas the biggest value of refractive efficiency at the average value is a capillary pipe with a diameter of 0.028 inches of 63.58%. While for capillary pipes with a diameter of 0.031 inches smaller the value of refraction efficiency averaged 59.49% and the cabin temperature in capillary pipes with a diameter of 0.028 inches, the average value was -9.82 0C. While for capillary pipes with a diameter of 0.031 inches smaller it has a cooler average value of -9.09 0C.

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