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All Journal Semesta Teknika Adimas : Jurnal Pengabdian Kepada Masyarakat KOMPUTEK
Sudarno Sudarno
Muhammadiyah University Of Ponorogo
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Mechanical Engineering Social Sciences

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Peningkatan Efisiensi Kompor LPG Dengan Menggunakan Reflektor Radiasi Panas Bersirip Sudarno Sudarno; Fadelan Fadelan
Semesta Teknika Vol 18, No 1 (2015): MEI 2015
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v18i1.710

Abstract

Heat wasted due to radiation from the flame around the LPG stovecan lower stove efficiency. The wasted heat would be exploited by using a finned heat reflector . The working principle of this tool is to capture the wasted heat  and reflect to the load so that it becomes useful energy . Preliminary data indicate that areflector without fins can increase stove efficiency., The objective of this research isto determine the performace finned heat reflectorin increasing LPG stove  efficiency. A piece of stainless steel plate as a truncated cone-shaped finned experimental model was used as a reflector. The efficiency test is done through  boiling water test. The number of fin of the the same dimensions were varied, starting from one-line to three-line fins. The performance of the stoves using reflectorwith fins were compared with that of stove using reflector without finsand with that of stove without reflectot. Based on test results, it is found that the use of finned reflectors is able to increase the efficiency of LPG stoves. The highest efficiency is obtained on the use of reflectors with three rows of fins, which amounted to 44.09%. The magnitude of the increase is compared to without using a reflector at 5.22%, while compared with the reflector without fins for 5.01%. Based on the test of temperature distribution is obtained also that the use of reflector finned heat radiation can increase the area of complete combustion.
Peningkatan Efisiensi Kompor LPG dengan Menggunakan Elemen Bara Api Sudarno sudarno sudarno; Fadelan Fadelan
Semesta Teknika Vol 19, No 2 (2016): NOVEMBER 2016
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v19i2.2050

Abstract

The defective combustion process is one of the causes of low efficiency in LPG stoves. Increasing the efficiency in LPG stoves by optimizing the combustion has high possibility to do. Practical effort that can be done is adding the element embers. This tool is a woven wire nikelin that are arranged in layers and if it is heated, it will be incandescent, forming high temperature embers. Generated embers will be able to burn fuel vapor perfectly around the wire, so it will broaden the mature fire area. The test is done by using LPG stoves which is provided by finned heat radiation reflector. The efficiency test is done by conducting the boiling water test. The number of element embers layers are varied, from one to four layers. The performance of element embers use is compared with LPG stoves without element embers use. In this study, temperature distribution for each treatment is tested. It is obtained that the use of element embers without reflector can improve the efficiency until 8.23%. The highest efficiency occurred in one of layer element embers use, as much as 61.7%. But, the increase of element embers in finned heat radiation reflector decreased the efficiency. It was because the mounting pattern of element embers bothered the function of the reflector, so the heat reflection from the reflector was stunted and stuck between the reflector and the mounting pattern. Therefore, the heat energy of the reflection from the reflector cannot be moved to combustion area. The result of temperature distribution test also showed that the element embers use could broaden the mature fire area.
IPTEK BAGI PETERNAK KAMBING KELOMPOK MASYARAKAT “MAISYAH” KELURAHAN TONATAN KABUPATEN PONOROGO Fadelan Fadelan; Munaji Munaji; Sudarno Sudarno; Yoyok Winardi
ADIMAS Jurnal Pengabdian Kepada Masyarakat Vol 4, No 2 (2020): September
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/adi.v4i2.2107

Abstract

Telah dilaksanakan program pengabdian kepada masyarakat berupa kegiatan Iptek bagi Masyarakat Pokmas Maisyah Kelurahan Tonatan Kecamatan Kota Kabupaten Ponorogo. Kelompok masyarakat (Pokmas). Maisyah berdiri sejak tahun 2012 di Kelurahan Tonatan Kecamatan Kota Kabupaten Ponorogo. Kelompok ini beranggotakan 11 kepala keluarga yang sebagian besar anggotanya adalah petani. Anggota Pokmas ini selain sebagai petani juga memiliki usaha peternakan kambing. Permasalahan yang dihadapi adalah belum adanya alat pencacah rumput yang dibutuhkan untuk proses penyediaan pakan. Program ini difokuskan pada pengadaan alat pencacah rumput sebagai bahan dasar pakan ternak. Teknologi tepat guna berupa alat pencacah rumput yang dirancang mampu berproduksi dengan kapasitas 110 kg/jam. Pelaksanaan program ini telah berhasil membantu meningkatkan proses produksi pakan ternak di Pokmas Maisyah. Sebagai tindak lanjut perlu dilakukan pelatihan lanjutan tentang pembuatan pakan fermentasi dan manajemen pengelolaan proyek penggemukan kambing
PENGARUH KENAIKAN TEMPERATUR TERHADAP ANGKA VISKOSITAS OLI SEPEDA MOTOR MATIC Nasroni Nasroni; Sudarno Sudarno; Munaji Munaji
KOMPUTEK Vol 1, No 1 (2017): Oktober
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.76 KB) | DOI: 10.24269/jkt.v1i1.110

Abstract

Sistem transmisi pada kendaraan terbagi menjadi transmisi manual dan otomatis. Keduanya memiliki oli dan fungsi oli yang berbeda. Oli sepeda motor matic berfungsi melumasi mesin dan sebagai penghantar mekanisme perpindahan gigi transmisi. Penelitian ini bertujuan untuk mengetahui pengaruh kenaikan temperatur dan berapa prosentase perubahan angka viskositas oli sepeda motor matic. Telah dilakukan penelitian pengaruh temperatur terhadap angka viskositas beberapa jenis oli sepeda motor matic. Pengujian dilakukan dengan viscometer bola jatuh. Pengukuran dilakukan pada suhu 27 dan suhu 85 . Dari hasil penelitian beberapa jenis oli sepeda motor matic. Viskositas Enduro Matic SAE 10W-30 adalah 0.0346 poise, Top 1 Action Matic SAE 10W-40 adalah 0.0240 poise, BM 1 Matic SAE 10W-30 adalah 0.0240 poise, Federal Matic SAE 10W-30 adalah 0.0191 poise, Motul Scooter SAE 10W-30 adalah 0.0193 poise dan Castrol Activ Matic SAE 10W-30 adalah 0.0213 poise. Prosentase Penurunannya adalah Enduro Matic SAE 10W-30 3.26%, Top 1 Action Matic SAE 10W-40 3.02%, BM 1 Matic SAE 10W-30 3.4%, Federal Matic SAE 10W-30 3.5%, Motul Scooter SAE 10W-30 3.44% dan Castrol Activ Matic SAE 10W-30 3.2%.
PERANCANGAN KENDARAAN BERMOTOR RODA TIGA UNTUK PENYANDANG TUNA DAKSA Julhija Ema Siputra; Nanang Suffiadi; Fadelan Fadelan; Sudarno Sudarno; Muh Malyadi
KOMPUTEK Vol 6, No 1 (2022): April
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jkt.v6i1.1137

Abstract

Tuna Daksa is a term for individuals who have lost or incomplete body parts that can be seen with the naked eye. One solution to help people with physical disabilities in carrying out daily activities in the field of transportation. Modification of motorized vehicles often lacks safety, especially when used on curvy roads due to lack of balance, so that it is overcome by modifying motorized vehicles using the one-wheel pull method. This method is used to adjust the balance of wheel rotation when turning a corner, and is equipped with parts that can support comfort in its use. The main parameter in this research is the analysis of the spindles and the components of the tools used. The material used to design the axle with bending load only is JIS E4502 class 4 carbon steel qwb = 60 kg/mm and its elongation limit is 30 kg/mm. The feasibility of the design of the modification of the tool is based on the results of research from the calculation that the diameter of the calculation results is above 17 mm, very safe to use and more than 1 mm with the previous diameter of 16 mm. 
PENGARUH MATERIAL ELEMEN BARA API TERHADAP EFISIENSI KOMPOR LPG Aji Prima Wicaksono; Sudarno Sudarno; Yoyok Winardi
KOMPUTEK Vol 2, No 2 (2018): Oktober
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (454.501 KB) | DOI: 10.24269/jkt.v2i2.136

Abstract

Gas alam adalah sumber daya Alam yang tidak dapat diperbarui. Salah satu upaya untuk sedikit menghemat gas alam adalah dengan pengoptimalan pemanfaatan panas yang dihasilkan oleh kompor LPG. Rekayasa kontruksi dan penemuan hasil penelitian telah banyak dilakukan untuk meningkatkan efisiensi kompor LPG  tersebut. Pemasangan elemen bara api dengan variasi material bertujuan untuk mengetahui material jenis apa yang dapat memberikan radiasi panas terbaik. Untuk mengetahui hal tersebut dilakukan pengujian pengaruh material elemen bara api terhadap peningkatan efisiensi  kompor gas yang dikemas dalam model penelitian eksperimental. Pengujian  dilakukan  dengan metode air mendidih (boilling water method), dengan memasang elemen dengan material kawat nikelin, kawat kanthal dan kawat nicrom pada kompor LPG. Dari hasil penelitian yang dilakukan terdapat indikasi peningkatan efisiensi pada semua jenis material elemen, namun nilai peningkatan efisiensi tertinggi terdapat pada material kawat kanthal  yaitu sebesar 55,57% meningkat 3.86% dibandingkan dengan tanpa menggunakan elemen bara api yang besarnya adalah 51,47 %.
PENGARUH VARIASI JUMLAH STAGE TERHADAP KINERJA TURBIN ANGIN SUMBU VERTIKAL SAVONIUS TIPE- L Krisna Slamet Rasyid; Sudarno Sudarno; Wawan Trisnadi Putra
KOMPUTEK Vol 2, No 1 (2018): April
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (707.245 KB) | DOI: 10.24269/jkt.v2i1.62

Abstract

Ketergantungan akan energi listrik terus meningkat dan ketersediaan energi fosil saat ini mengalami penurunan maka diperlukan sumber energi baru yang terbarukan dan ramah lingkungan. Salah satu energi yang dapat dimanfaatkan adalah energi angin. Tujuan penelitian ini adalah untuk mendapatkan unjuk kerja model turbin angin Savonius tipe L dengan 3 variasi. Ketiga variasi turbin angin tersebut dibuat dalam tiga stage, dengan ukuran yang sama yakni 0,35 m x 0,60 m.. Setiap model turbin angin diuji untuk mengetahui torsi, putaran poros, daya kincir, TSR dan koefisien daya. Hasil penelitian menunjukkan bahwa model turbin Savonius dengan jumlah 2 stage memberikan koefisien daya (Cp) maksimal (21,86 % pada kecepatan angin 8,57 m/s) tertinggi di antara ketiga model turbin yang diteliti. Model turbin angin Savonius dengan bentuk sudu standar menghasilkan koefisien daya maksimal 14,10 % pada kecepatan angin 7,92 m/s. Serta turbin angin ketiga menghasilkan koefisien daya sebesar 16,39 % pada kecepatan angin 8,7 m/s
PENGARUH MODIFIKASI BACKCUT SEAT VALVE DAN UNDERCUTSTEM TERHADAP EFISIENSI VOLUMETRIK PADA CYLINDER HEAD MESIN ASTRO 108 CC Aldi Prasetiyo; Sudarno sudarno; Yoga Arob Wicaksono
KOMPUTEK Vol 5, No 1 (2021): April
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jkt.v5i1.679

Abstract

As technology develops in the automotive world, more and more motor vehicle manufacturers are also applying the latest technologies, especially for vehicles sold in general. Call it, for example, the development of the fuel system, which was still a carburetor, now uses an injection system, from S.O.H.C to D.O.H.C. these technologies are useful for increasing volumetric efficiency. In this study, the researchers wanted to increase the volumetric efficiency of the Astro 108 cc engine by applying a simple modification, namely the inlet and exhaust that was modified with a 30 backcut on the valve, undercut system, and 4 angle valve jobs (30 , 45, 60 , 75 ). By applying these modifications to the Astro 108 cc engine, it can increase its volumetric efficiency, say at 2300 rpm with standard inlet and exhaust conditions producing an air flow rate of 0.000358 m3 / s and 0.000814 m3 / s, this data is obtained from pressure taking on the water box meter. The difference in flow occurs because the air that enters the inlet and exhaust is smoother due to the modifications made. With this flow rate, at 2300 rpm standard head produces a volumetric efficiency of 19.05712%, and 43.26364% with a modified head.
PENGARUH PENDINGIN AIR DAN ES TERHADAP HASIL PIROLISIS MINAK PLASTIK Bakhtiar Permana Putra; Wawan Trisnadi Putra; Fadelan Fadelan; Sudarno Sudarno; Yoyok Winardi
KOMPUTEK Vol 6, No 2 (2022): Oktober
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jkt.v6i2.1477

Abstract

Plastic waste is a trend that continues to increase along with economic growth and an increase in population. Millions of tons of plastic are produced annually from low to large scale. One way to reduce plastic waste is to use the pyrolysis process. Condenser performance is influenced by several things, including condenser design. The condenser design used in this pyrolysis device is a water and ice-cooled condenser with a spiral type. The results of the pyrolysis process are then analyzed by observing the experiment directly then concluding and determining the results of the experiments that have been carried out in the form of tables and graphs to obtain comparisons. What was observed in this experiment was the effect of water and ice cooling media on the amount of plastic oil produced. Pyrolysis experiments with ice cube coolers get more plastic oil results. For the first experiment using 1000 gr PP plastic using plain water cooler, in a combustion time of 180 minutes and a reactor temperature of 2500ºC, we get 130 ml of plastic oil. The second experiment used 1000 gr PP plastic with ordinary water as a coolant mixed with ice cubes in a burning time of 180 minutes and a reactor temperature of 250ºC to get 340 ml of plastic oil. The third experiment used 1000 gr PP plastic with ice cubes as a cooler for 180 minutes of combustion and a reactor temperature of 250ºC to get 600 ml of plastic oil.
Co-Authors Aji Prima Wicaksono Aldi Prasetiyo Bakhtiar Permana Putra Fadelan Fadelan Fadelan Fadelan Julhija Ema Siputra Krisna Slamet Rasyid Muh Malyadi Munaji Munaji Nanang Suffiadi Nasroni Nasroni Wawan Trisnadi Putra YOGA AROB WICAKSONO Yoyok Winardi