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All Journal Jurnal Teknologi Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Mechanical Jurnal Ilmiah Teknik Mesin Turbo : Jurnal Program Studi Teknik Mesin Journal of Engineering and Scientific Research (JESR) International Journal of Aviation Science and Engineering Journal of Innovation and Technology Buguh: Jurnal Pengabdian Kepada Masyarakat Jurnal Sains dan Teknologi Journal of Applied Science, Engineering and Technology (J. ASET) Seminar Nasional Insinyur Profesional (SNIP) Jurnal Polimesin Nemui Nyimah
A.Yudi Eka Risano
Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Lampung Bandar Lampung, 35145, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Veterinary Other

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APPLICATION OF FAILURE MODE AND EFFECT ANALYSIS (FMEA) AND ISHIKAWA DIAGRAM IN DETERMINING THE DAMAGE ASPECTS AND MAINTENANCE PLAN OF SCREW FEEDER OF STEAM POWER PLANT COMPANY Riszal, Ahmad; Yohanes, Eko; Risano, A Yudi Eka; Ibrahim, Fauzi; Supriadi, Harnowo; Zulhanif
Journal of Applied Science, Engineering and Technology Vol. 2 No. 2 (2022): December 2022
Publisher : INSTEP Network

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Abstract

Screw feeder is a type of material transporter that is widely used in various industrial sectors, where its function is very helpful in facilitating work, such as transporting very large amounts of material and this screw feeder has the advantage of long or sustainable tool operation. In industry, damage often occurs erratically and must undergo component replacement that is not in accordance with the routine maintenance schedule. In designing this maintenance machine, Ishikawa diagrams are used to analyze the causes and effects of component damage to the screw coal feeder, while to analyze other damage parameters and scheduling maintenance and planned component replacements, the Failure Mode and Effect Analysis (FMEA) method can be used. The results of this study indicate that the cause of the damage consists of several factors including humans, machines, materials, and methods. The actions that must be taken on the components include checking for wear and lubrication so that these components are always in good use. Based on the results of the calculation of the reliability of the screw coal feeder machine, the reliability of the screw feeder leaf component is 95.3% and the screw feeder casing component is 94.6%. This can also be seen from the mean time between failure (MBTF) for the leaf screw feeder component of 116.66 hours and the MBTF for the casing screw feeder component of 142.85 hours. With the application of the Ishikawa diagram and FMEA on the screw coal feeder maintenance system at steam power plant company (PLTU) PT XYZ in Indonesia. The maintenance implementation aims for a better planned. The actions that must be taken on the components include checking for wear and lubrication so that these components are always in good use. Based on the results of the calculation of the reliability of the screw coal feeder machine, the reliability of the screw feeder leaf component is 95.3% and the screw feeder casing component is 94.6%. This can also be seen from the mean time between failure (MBTF) for the leaf screw feeder component of 116.66 hours and the MBTF for the casing screw feeder component of 142.85 hours. With the application of the Ishikawa diagram and FMEA on the screw coal feeder maintenance system at PLTU PT XYZ, the maintenance implementation becomes better planned. The actions that must be taken on the components include checking for wear and lubrication so that these components are always in good use. Based on the results of the calculation of the reliability of the screw coal feeder machine, the reliability of the screw feeder leaf component is 95.3% and the screw feeder casing component is 94.6%. This can also be seen from the mean time between failure (MBTF) for the leaf screw feeder component of 116.66 hours and the MBTF for the casing screw feeder component of 142.85 hours. With the application of the Ishikawa diagram and FMEA on the screw coal feeder maintenance system at PT XYZ, the maintenance implementation becomes better planned. the reliability of the screw feeder leaf component is 95.3% and the screw feeder casing component is 94.6%. This can also be seen from the mean time between failure (MBTF) for the leaf screw feeder component of 116.66 hours and the MBTF for the casing screw feeder component of 142.85 hours. With the application of the Ishikawa diagram and FMEA on the screw coal feeder maintenance system at PT XYZ, the maintenance implementation becomes better planned. the reliability of the screw feeder leaf component is 95.3% and the screw feeder casing component is 94.6%. This can also be seen from the mean time between failure (MBTF) for the leaf screw feeder component of 116.66 hours and the MBTF for the casing screw feeder component of 142.85 hours. With the application of the Ishikawa diagram and FMEA on the screw coal feeder maintenance system at PT XYZ, the maintenance implementation becomes better planned.
Bridge Structure Study on the Dome of the Boarding School’s Mosque at Pringsewu District in Bandar Lampung Wijaya, Angga; Kurniawan, Panji; Nafrizal; Risano, A Yudi Eka
Journal of Applied Science, Engineering and Technology Vol. 2 No. 2 (2022): December 2022
Publisher : INSTEP Network

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Abstract

Islamic architecture as a foundation in building Muslim worship facilities in the form of mosques has developed its meaning along with advances in science and technology. One of the concepts in designing a mosque is to ensure that the congregation can close the rows of rows. Based on the verses of the Qur'an regarding the priority of rows in congregational prayers, effort (rashshus shufūf) in congregational prayers is something that is ordered in the Qur'an and hadith.It thenmanifested in the Islamic architectural design of the Klangenan Insan Mulia Boarding School Mosque in the form of providing a center column so that the prayer halls are not interrupted due to the presence of middle columns. As a consequence of the design, the structure of the mosque required several adjustments which were well planned and efficient. This research was conducted using a qualitative method with descriptive analysis supported by modeling simulation and load strength analysis using ETAB V. 16 software, so that the results obtained in the form of structural calculations for steel rafter roof construction using the bridge structure model. The steel rafter roof construction with the bridge structure model was chosen due to several factors including: strength, practicality, and design flexibility.
Activation of Natural Zeolite Mixture and Coal Flyash Using Microwave as Air Filter for the Improvement of Gasoline Four-Stroke Motorcycle Engine Acceleration Risano, A Yudi Eka; Wardono, Herry; Renardy, B Niko; Susila, M Dyan; Sugiri, Agus; Haviz, Muhammad
Journal of Applied Science, Engineering and Technology Vol. 4 No. 1 (2024): June 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i1.70

Abstract

Combustion is a chemical process between fuel and oxygen utilizing heat. Ambient air contains a variety of gases such as nitrogen, oxygen, and other gases, causing incomplete combustion in the combustion chamber of a 4-stroke petrol engine. The use of artificial air filters with zeolite-flyash composition activated by microwave can adsorb the air that enters the combustion chamber. So that it can improve the quality of combustion. Zeolite is a mineral that is found in limestone mountainous areas, while coal flyash is material from coal combustion at PLTU. Both of these materials have the ability to adsorb molecular sized particles such as nitrogen, CO and water vapor in the air, so the use of both materials is able to produce air with rich oxygen. The performance of the 4-stroke petrol engine is influenced by a decrease in fuel consumption, able to increase acceleration, and reduce exhaust emissions containing CO and HC. To find out the effect of the use of activated zeolite-flyash filters on engine performance, an acceleration test of 0-60 kph was performed. Filter being activated by Microwave with 80% power, 6 minutes activation time, and density (variation in the number of pellets in the filter) 50%, 75%, 100%, and use the Z0: F100, Z25: F75, Z50: F50, Z75: F25, Z100: F0. The best filter is the composition of Z100:F0 with a compactness of 50% able to increase acceleration by 7.17%, followed by filter with composition of Z25:F75 with a compactness of 50% able to increase acceleration by 4,04%.
PELATIHAN DAN PENDAMPINGAN PENERAPAN IPTEK PENGERING OPAK BERTEKNOLOGI KOLEKTOR SURYA DI DESA ULANGAN JAYA PROPINSI LAMPUNG Irza Sukmana; Ahmad Yudi Eka Risano; Tarkono, Tarkono; Fauzi Ibrahim; Agus Sugiri; Sugiyanto; Ahmad Riszal; Rizal Adi Saputra; Mahruri Arif Wicaksono; M. Rangga Saputra; Arifin Kusumo Wicaksono
BUGUH: JURNAL PENGABDIAN KEPADA MASYARAKAT Vol. 5 No. 1 (2025): Maret 2025
Publisher : Badan Pelaksana Kuliah Kerja Nyata Universitas Lampung

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Abstract

Singkong dapat diolah menjadi berbagai produk olahan pangan, diantaranya yang cukup popular adalah opak singkong. Desa Ulangan Jaya, Kabupaten Pesawaran, Lampung merupakan salah satu produsen opak yang memiliki area penjualan hingga ke wilayah Kab. Lampung Selatan, dan Kotamadya Bandar Lampung. Dalam proses produksi opak, metoda pengeringan yang digunakan masih bersifat tradisional, yaitu dengan cara manual melalui penjemuran di bawah terik matahari. Kegiatan pengabdian kepeda masyarakat ini bertujuan untuk meningkatkan pengetahuan mitra produsen opak mengenai teknologi proses pengeringan menggunakan kolektor surya atau tenaga matahari, dan mengimplemantasikan alat pengering opak dengan teknologi kolektor matahari. Alat pengering menggunakan kolektor matahari merupakan teknologi yang dapat memberikan manfaat kepada masyarakat. Dengan adanya kegiatan sosialisasi dan implementasi ipteks pengering kolektor surya ini, produsen opak dan masyarakat sekitar Desa Ulangan Jaya lebih tertarik terhadap teknologi pengeringan pada produk makanan dengan cara dan biaya yang cukup ekonomis. Hasil pengabdian kepada masyarakat ini menunjukkan adanya peningkatan motivasi dan pengetahuan warga mengenai alat pengering dari 37,5% menjadi 90,0%, atau terjadinya peningkatan sebesar 52,5%.
Application of Failure Mode, Effect Analysis (FMEA) and Ishikawa Diagram in Determining the Damage Aspects and Maintenance Plan of Screw Feeder of Steam Power Plant Company Riszal, Akhmad; Yohanes, Eko; Risano, A Yudi Eka; Ibrahim, Fauzi; Saputra, Rizal Adi
Journal of Applied Science, Engineering and Technology Vol. 5 No. 1 (2025): June 2025
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v5i1.76

Abstract

The screw feeder is a commonly used material transporter in various industries due to its ability to move large quantities of material and operate for extended periods. In practice, unexpected damage often occurs, requiring component replacements outside regular maintenance schedules. To improve reliability, Ishikawa diagrams are used to identify root causes of damage, while the FMEA method helps analyze failure risks and schedule preventive maintenance. This study found that the main causes of screw coal feeder damage are human error, mechanical issues, materials, and methods. Recommended actions include regular inspections for wear and proper lubrication to maintain performance. Based on reliability analysis, the screw feeder leaf has a reliability rate of 95.3% with a mean time between failure (MTBF) of 116.66 hours. The casing has a reliability rate of 94.6% and an MTBF of 142.85 hours. Implementing Ishikawa and FMEA methods at PT XYZ’s coal-fired power plant (PLTU) enables more effective and planned maintenance. This approach minimizes unexpected breakdowns, improves component reliability, and ensures smoother operations.
Development of a sodium chloride (NaCl) eutectic phase change material for fish cold storage applications Risano, Ahmad Yudi Eka; Eriyadi, Riko; Irsyad, Muhammad; Sukmana, Irza; Sugiri, Agus; Saputra, Rizal Adi; Wahyudi, Heru
Jurnal Polimesin Vol 23, No 2 (2025): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i2.5547

Abstract

Sustainable marine resource management is essential, as the sea provides a vital source of nutrition for humans. Fish and shellfish are highly perishable, making effective low-temperature storage systems crucial for preserving their quality. This research developed a cold storage system utilizing Phase Change Material (PCM) for low-temperature applications. While water is commonly used as a PCM due to its excellent thermal properties, it is unsuitable for low-temperature applications because of its 0°C freezing point. To overcome this, sodium chloride (NaCl) was introduced as a solute to lower the freezing point, resulting in eutectic salt solutions with 3%, 6%, and 9% weight concentrations. Thermal characterization revealed that the 9% wt. NaCl solution exhibited the most favourable properties, achieving a freezing point of -5.8°C while maintaining a latent heat of fusion comparable to water. Experimental validation demonstrated that 5.6 kg of the 9% NaCl solution effectively maintained 5 kg of fish at approximately 0°C for 24.3 hours, with minimal temperature fluctuation. Organoleptic evaluation yielded a score of 8 at a 95% confidence level, indicating excellent preservation quality. These findings highlight the potential of NaCl eutectic solutions as cost-effective, sustainable alternatives to conventional refrigeration methods for seafood storage.  
Aplikasi Bata Api pada Modifikasi Tungku Pemasakan Keripik Singkong IKM Desa Purworejo Kecamatan Negerikaton, Kabupaten Pesawaran Wardono, Herry; Hanif, Muhammad; Risano, A. Yudi Eka
Nemui Nyimah Vol. 1 No. 2 (2021): Nemui Nyimah
Publisher : FT Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/nm.v1i2.19

Abstract

The communities of cassava chips apply conventional cooking stoves, which are wasteful of fuel, high air pollution, unclean working environment, and cracks quickly. The technology of refractory brick stove with a modification of the combustion chamber is applied to this cooking stove. A new furnace was made using SK-34 refractory bricks. The stove construction requires little skill and is easy to implement. The results obtained from the stove are much more robust, fuel-efficient, and a clean, healthy and comfortable working environment. In addition, because it is easy to manufacture, people will easily understand and make their refractory brick stove and maintain it. Using a refractory brick stove to produce 40 kg of cassava chips requires a frying time of 2 hours 22 minutes and consumes 89.4 kg of firewood. Meanwhile, using a conventional stove takes a frying time of 3 hours 23 minutes and consumes 117.3 kg of firewood.
Teknologi Pemanfaatan Eco Enzym Dalam Pembuatan Karbol Wangi Herry Wardono; Harmen; Risano, A. Yudi Eka; Ginting, Simparmin Br; Thalya Miranda; Erisha Putri; Anandati, Ghea Maulidaco; Tebu, Yohanes Yonathan
Nemui Nyimah Vol. 4 No. 1 (2024): Nemui Nyimah Vol.4 No.1 2024
Publisher : FT Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/nm.v4i1.122

Abstract

Karbol adalah pembersih lantai yang mengandung antiseptic sehingga dapat membunuh kuman yang berkembang biak. Selain untuk membersihkan lantai, asam karbol juga digunakan untuk membersihkan kamar mandi, kandang hewan dan juga menimbulkan bau tidak sedap pada ruangan. Kegiatan pengabdian Masyarakat inidilakukan di Desa Hajimena, Natar, Lampung Selatan dengan tujuan untuk mengajak dan memberdayakan masyarakat, terutama UMKM Berkah Ridho untuk beralih dari karbol wangi komersial ke karbol wangi eco enzyme. Kegiatan yang dilakukan terdiri dari pemberian materi (edukasi) terkait eco-enzym dan praktek secara langsung pembuatan karbol wangi eco enzyme. Karbol wangi eco enzyme adalah solusi yang baik dalam mengganti penggunaan karbol wangi komersial. Selain penggunaan bahan baku yang alami, karbol wangi eco enzyme juga aman jika tidak sengaja terkontak dengan kulit karena tidak menyebabkan gatal-gatal ataupun lengket. Karbol wangi eco enzyme selain dapat digunakan untuk kebutuhan sehari-hari sehingga menghemat pengeluaran bulanan rumah tangga, juga dapat menjadi produk bernilai jual
Implementasi Teknologi Pengolahan Air Bersih di Perumahan Griya Saka Hajimena Menggunakan Metode Filtrasi dengan Bantuan Pompa Air Tenaga Surya Mayasari, Rizka; Noorhidana, Vera A; Risano, A. Yudi Eka; Wijaya, Riki C; Djana, Miftahul; Anwar, Hasrul; Haerudin, Nandi; Sari, Devi Kurnia
Nemui Nyimah Vol. 4 No. 1 (2024): Nemui Nyimah Vol.4 No.1 2024
Publisher : FT Universitas Lampung

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Abstract

Salah satu upaya pengoptimalan pengolahan air bersih dengan penggunaan teknologi tepat guna yaitu metode filtrasi sederhana (sandfilter, zeolit, dan bentonit) yang akan diintegrasikan dengan pompa tenaga surya agar masyarakat dapat mengaplikasikan di rumah masing-masing dengan harga yang relatif murah dan hemat energi. Kegiatan Pengabdian Kepada Masyarakat (PKM) bertujuan untuk membantu warga Perumahan Griya Saka dalam meningkatkan pengetahuan mengenai kualitas air, dampak dari air yang tidak sesuai standar, dan penerapan teknologi tepat guna dalam mengelola air bersih. Metode yang digunakan dengan pengenalan dan pelatihan pembuatan alat filtrasi diintegrasikan dengan pompa tenaga surya.
Peningkatan Efisiensi Termal Tungku Biomasa Untuk Proses Pengeringan Biji Kakao di Desa Wiyono Kabupaten Pesawaran Propinsi Lampung Badaruddin, Muhammad; Risano, Ahmad Yudi Eka; Suudi, Ahmad
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol. 1 No. 1 (2017): Jurnal Sakai Sambayan
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

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Abstract

Abstract — The modification stove was designed and constructed for drying cocoa beans using biomassa as fuel. The purpose of the modification stove is to increase production of 0.6 tonnes dry cocoa beans. The thermal efficiency of the stove is determined and compared with a conventional stove using hevea brasiliensis woods as fuel. The inside wall of stove and oven were built from SK34 fire brick and ceramic paper, respectively. The outer walls were made from red brick and was coated by cement. The results show that the thermal efficiency of the modification stove is increased by 37.34% compared with the conventional stove. The fuel consumption decreases by 25 % (25 kg-product), resulting a fuel cost saving of Rp. 1.8 million/year. In addition, the total cost of the stove can be paid back in a period of 3.5 years with the service lifetime of the stove for 10 years. The moisture contents ratio of cocoa beans with drying time are obtained to predict values of diffusivity (De) over range of drying temperature 50-80 °C. the values of diffusivity obtained ranged from 62.03 × 10−10 sampai 4.55 × 10−10 m2/s for the temperature used. Keywords — biomass stove, cocoa been, thermal efficiency, efective diffusity
Co-Authors . Harmen . Sulistiyono Abdul Aziz Adi Ernadi Agus Sugiri Agus Sugiri Agus Sugiri, Agus Ahmad Riszal Ahmad Su'udi Ahmad Suudi Ahmad Suudi Akhmad Riszal Amrul Amrul Anandati, Ghea Maulidaco Andy Abdel Hakim Angga Wijaya, Angga Anwar, Hasrul Anwar, Syaipudin Ari Andrew Pane Arifin Kusumo Wicaksono Asep Sukohar Baddarudin, Mohammad Bayu, Chandra Choirul Anam Djana, Miftahul Eko Yohanes Erisha Putri Eriyadi, Riko Hamdani, Fadil Harmen Harnowo Supriadi, Harnowo Herry Wardono HERU WAHYUDI Hidayat, M Thariq Ibrahim, Fauzi Irza Sukmana Irza Sukmana Irza Sukmana Irza Sukmana Irza Sukmana, Irza Khairul Anwar Khairul Ummah Khairul Ummah Lamsihar S Tamba M Thariq Hidayat M. Dyan Susila M. Dyan Susila ES M. Haviz M. Rangga Saputra Maherariyat, Maherariyat Mahruri Arif Wicaksono Mahruri Arif Wicaksono Maulana Efendi Mayasari, Rizka Meylia Rodiawati Muhammad Badaruddin Muhammad Hanif Muhammad Irsyad Muhammad Irsyad Nafrizal Nandi Haerudin Noorhidana, Vera A Novri Tanti Novri Tanti, Novri Panji Kurniawan Paska W, Andreas Rahmat Ramadhan Renardy, B Niko Rendy Dwi A.P. Riszal, Ahmad Riszal, Akhmad Rizal Adi Saputra Rizal Adi Saputra Sandy Dwi Hardin Sari, Devi Kurnia Sihombing, Gunawan Poniton R.P. Simparmin br Ginting Subekti Bagus W SUGIYANTO Sugiyanto - Tarkono Tarkono Tebu, Yohanes Yonathan Thalya Miranda Thohirin, Muh Vadival, G N Wijaya, Riki C Yoga Pratama Zulhanif Zulhanif, Zulhanif