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Pramesti, Lely
Politeknik Perkapalan Negeri Surabaya, Surabaya, Indonesia
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ANALISIS PENGARUH MULTI-FEEDSTOCK BIODIESEL TERHADAP PERFORMA FOUR-STROKE DIESEL ENGINE DENGAN LSCS PISTON Faruq As'ary; Edi Haryono; Lely Pramesti
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2670

Abstract

Biodiesel emerges as a promising solution that can be pursued domestically. This fuel canbe produced from available vegetable oil and animal fat resources. In the context of this research, thefocus is on creating multi-feedstock biodiesel from palm oil, corn oil, and coconut oil. Subsequently,blends of these various biodiesel types are mixed with Pertamina Dex to produce fuels in the forms ofB20, B35, and B100. Tests were conducted on a four-stroke diesel engine utilizing the LSCS piston.The tested variables encompassed engine loads at levels of 1000 Watts, 2000 Watts, and 3000 Watts,as well as engine speed variations at 900 rpm, 950 rpm, 1000 rpm, and 1050 rpm. Within this context,the research's objective was to examine the characteristics of the applied biodiesel and its impact onengine performance. The test results indicate that biodiesel with a B100 blend is capable of meetingIndonesian National Standard (SNI) requirements for flash point, cetane number, calorific value,density, and viscosity. Furthermore, in terms of engine performance, biodiesel with a B20composition has proven to provide optimal results in generating the required power and torque.Moreover, B20 also demonstrates the best performance in achieving the desired gsfc value.
PENGARUH MULTI FEEDSTOCK 1 BIODIESEL DAN MULTI FEEDSTOCK 2 BIODIESEL TERHADAP UNJUK KERJA FOUR STROKE DIESEL ENGINE MENGGUNAKAN VARIASI PISTON CHAMBER Ahmad Rifqul Muzakki; Edi Haryono; Lely Pramesti
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2672

Abstract

Petroleum fuel is one of the fuels that is always used in combustion motors, especially in dieselengines so that abiotic natural resources are limited. Petroleum makes natural resources depleted, whiletransportation facilities and industrial activities are declining. One of them, the use of diesel, which is an abioticnatural resource that continuously in the transportation sector will one day run out, so the thing that needs to beconsidered is the alternative fuel that can be made, namely biodiesel. Biodiesel is a renewable fuel and is generallymade from biological sources (vegetable and animal) and is environmentally friendly. Raw materials from biodieselthat can be used are palm oil, olive oil, canola oil, hazelnut oil, and castor seed oil. In this research I will classify theseraw materials into 2 compositions of multi-feedstock.biodiesel. The first is Multi-feedstock 1 biodiesel contained frompalm oil, olive oil and canola oil. Meanwhile, Multi-Feedstock 2 biodiesel contains palm oil, hazelnut oil, and castorseed oil. The two Multi-feedstock compositions will then be mixed with HSD (Pertamina Dex) so that they become B20,B35, and B100 fuel which will then be tested on Four Stroke Diesel Engines with different piston variations. Whichlater in this study will test with a flat piston chamber then continue using the LSCS piston chamber. For lamp loading,it uses 1000 watt and also data capture using engine rotation variations of 900 rpm, 950 rpm, 1000 rpm, and 1050rpm.
Desain Ballast Water Treatment System Kapal Sesuai Standar IMO Naufal Adi Hidayah; Eko Julianto; Lely Pramesti
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2682

Abstract

The ballast water system are important to maintain ships’s stability during voyage especially when shipnot carrying any cargo. The exchange of ballast water were considered as the main cause of microorganism andbacterias spreading that damaging port water ecosystems. To prevent the damage from harmful microorganism andbacterias on ballast water discharge, in 2004 International Maritime Organization (IMO) established and adoptedBallast Water Management Convention (BWMC). Before complying with IMO BWMC standard, MT GunungGeulis’s existing ballast water system were evaluated and the result says that MT Gunung Geulis are not compatiblewith IMO BWMC standard because still using ballast water exchange method to manage their ballast water. Tocomply with IMO BWMC standard, MT Gunung Geulis need to added ballast water treatment system (BWTS). Basedon journal review to comparing BWTS treatment methods says that filtration + electrolysis method giving the highestefficiency on removing microorganism and bacterias from ballast water. BWTS unit installed on MT Gunung Geulishad three main equipment, filtration unit, electrolysis unit and neutralizer unit from Ocean Guard to be located onturbine and partial deck Filtration unit and electrolysis unit are operated on ballasting process and neutralizationunit injecting neutralizer on deballasting process..
Desain Sistem Pemadam Kebakaran Jalur Hydrant pada Galangan di Kalimantan Annas Firmansyah; Projek Priyonggo Sumangun; Lely Pramesti
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2684

Abstract

Shipyards have facilities that have the potential to cause fires because there is work that generatesheat and contains flammable materials. The existing hydrant system at the shipyard is still simple and does notcover the entire area. Therefore, it is necessary to plan a hydrant system that can cover all areas in accordancewith NFPA and SNI standards. Planning begins with determining the number and placement of hydrant pillars,pipe routing, head loss calculations, and pump selection. The pipeline requires 7.776 m of 8-inch pipe, and 6-inch pipe requires 1915.477 m of pipe. The total head losses obtained from the calculation at the farthesthydrant pillar is 217.426 m. The selected pump is a Wilo 150 GF with a pump head of 240 m and a capacity of1250 US GPM.
Desain Propeller Yamaha Saltwater Series II Menggunakan Metode Interpolasi Muhammad Rifqi Zulfahmi; R Dimas Endro Witjonarko; Lely Pramesti
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2688

Abstract

The challenge when using an outboard engine is that all parts used have been packaged bythe manufacturer, so if there are damaged parts such as a bent propeller, you must buy from anauthorized distributor. In areas that are far from reach, it takes a lot of time and money to get partsofficially. Therefore, a research was conducted as an alternative effort to develop manufacturingtechnology, especially propellers. So that people can choose several options regarding the productsused. To get the same performance and characteristics, manual measurements are taken. But bymeans of measurement alone is not enough to make the image similar to the original, it is necessaryto make improvements with the interpolation method as an approach in drawing the propeller bladeprofile. After the research this method is very effective in drawing the shape of the propeller profilethis is evidenced by the interpolation method the resulting shape looks smoother. In addition, severalother aspects were also measured for propeller similarity. The results of the measurements obtained ablade area value of 19800 mm², a rake angle of 22°, a skew angle of 40°, a root length of 150 mm anda root angle of 90°.
Pelatihan Manufaktur Komposit sebagai Produk Kerajinan Tangan pada Industri Rumahan Nugraha, Anggara Trisna; Primaningtyas, Widya Emilia; Abdullah, Kharis; Wulandari, Kiki Dwi; Alfanda, Benedicta Dian; Pramesti, Lely; Cahyono, Luqman; Pambudi, Dwi Sasmita Aji; Sumardiono, Sumardiono
Educivilia: Jurnal Pengabdian pada Masyarakat Vol. 1 No. 2 (2020): Educivilia: Jurnal Pengabdian pada Masyarakat
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (869.25 KB) | DOI: 10.30997/ejpm.v1i2.2943

Abstract

Berbagai kerajinan tangan dapat dikembangkan di masyarakat, salah satunya kerajinan tangan berbahan komposit yaitu menggunakan resin sebagai bahan utamanya. Metode pengecoran atau manufaktur bahan komposit ini memiliki variasi sesuai dengan resin yang digunakan atau peruntukkan komposit itu sendiri. Metode manufaktur ini dapat diaplikasikan oleh masyarakat dengan mudah, sehingga komposit yang dihasilkan dapat dimanfaatkan sebagai kerajinan tangan yang memiliki nilai tambah. Pelatihan metode manufaktur material komposit sebagai kerajinan tangan ini diberikan kepada Komunitas Riverside, Desa Suko, Kecamatan Sukodono, Kabupaten Sidoarjo. Pada prinsipnya pelatihan ini mengaplikasikan metode pengecoran sebagai dasar teknis aplikasi kerajinan tangan berbahan komposit. Pelatihan dilakukan dengan memberikan pengetahuan dasar tentang bahan resin dalam bentuk ceramah atau presentasi, kemudian dilakukan praktek metode manufaktur material komposit tersebut sehingga menghasilkan kerajinan tangan yang bernilai tinggi. Hasil kerajinan tangan berbahan komposit yang dihasilkan antara lain adalah gantungan kunci, bros, dan magnet hiasan kulkas.
Outboard Engine Maintenance and Repair Training for Fishermen and Kelompok Sadar Wisata (PokDarWis) in Tlocor Sidoarjo Gafur, Abdul; Haryono, Edi; Endro, R. Dimas; Alfanda, Benedcita Dian; Pramesti, Lely; Julianto, Eko; Santoso, Mardi; Kusminah, Imah Luluk; Antoko, Bambang; Ariwiyono, Nopem; Umbara, Albert Wida
Society : Jurnal Pengabdian Masyarakat Vol 4, No 3 (2025): Mei
Publisher : Edumedia Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55824/jpm.v4i3.565

Abstract

Outboard Engine has been known and used as motor boat among of the residents of fisherman community in Tlocors village. Motor boats powered by outboard engine are not only used for fishing, but also used as marine tourism facilities. Considering the vital functional usage of outboard engine for Tlocor’s fisherman community and village community tourism groups  (Pokdarwis), for maintaining    economic livelihood, any interrupted items that happened during motor operation periods would be very significant impact on their daily life. Loss of income resulting from engine problem is the most of many potential cases occurred on the communities.   Hence, it is necessary to provide assistances for both Tlocors Communities, the fishermen, and village community tourism groups. Assistances were also considered part of the public service obligation to communities provided by the Institution.  Training on Outboard Engine Maintenance and Repair would become the scheme of the assistances. This tailor- made assistances would be targeted to both clusters. Better understanding and having a certain competency level on outboard engine maintenance and repair would have a significant value in order to empowering both communities, and become the main purpose of the assistance as well
Design Approach for Sanitary Piping Retrofit in Passenger Ships According to MARPOL Annex IV and Ship Classification Standards Pramesti, Lely; Julianto, Eko; Witjonarko, Raden Dimas Endro; Haryono, Edi; Alrasyid, M. Dhani
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7408

Abstract

This research focuses on the redesign of the sanitary piping system on a passenger ship that sustained damage due to a tropical cyclone in the vicinity of Bolok Port, Kupang. The main objective is to redesign the sanitary discharge system to comply with MARPOL Annex IV and classification rules, which governs sewage pollution prevention from ships. A structured engineering methodology was employed, encompassing adherence to regulations, hydraulic evaluation, selection of system components, and schematic design. The assessment considers the number of crew and passengers to determine system requirements. Based on the analysis, the vessel requires a sewage holding tank with a minimum capacity of 4,11 m³/h. Sanitary discharge piping is specified using DN40 Schedule 80 carbon steel pipes according to JIS standards. Jets STP 600 was chosen as the sewage treatment unit, offering a treatment capacity of 0,6 m³/h and conforming to the standards outlined in IMO MEPC.227(64). This retrofit design aims to improve sanitation efficiency, enhance operational safety, and reduce the environmental impact of wastewater discharge. These results provide a basis for the application of sustainable retrofitting strategies on vessels operating under comparable maritime environments.
Penyuluhan Pemanfaatan Limbah Dapur “Khususnya Minyak Jelantah” Pramesti, Lely
Jurnal Locus Penelitian dan Pengabdian Vol. 1 No. 12 (2022): journal Locus Penelitian dan Pengabdian
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/locus.v1i9.933

Abstract

Dalam rangka menyambut hari ulang tahun Negara Republik Indonesia ke 77, Panitia PKK Desa Glagahsari, Kecamatan Sukorejo, Kabupaten Pasuruan – Jawa Timur mengadakan berbagai rangkaian acara yang mengusung tema “Desa Bersih Limbah” termasuk mengadakan acara penyuluhan untuk “Pemanfaatan Limbah Dapur”. Acara diadakan pada Hari Minggu, Tanggal 7 Agustus 2022 sekitar pukul 09.00 WIB, bertempat di Balai Desa Glagahsari, Kec. Sukorejo, Kab. Pasuruan. Acara berjalan lancar dan meriah, dihadiri tamu yang merupakan warga sekitar dan anggota ibu-ibu PKK. Mereka sangat antusias mengikuti acara penyuluhan tersebut. Panitia PKK desa menghadirkan beberapa pemateri yang dianggap mampu memberikan materi yang setema. Detailnya, acara dihadiri Kepala Desa Glagahsari Bapak Pratika Hidayat untuk memberikan sambutan, Ketua bank sampah KSM Glamors, Ibu Siti Fitriah salah satu penggiat isu lingkungan hidup dengan pemanfaatan limbah sampah, dan Penulis yang merupakan praktisi pengajar di Perguruan Tinggi Negeri Vokasi. Materi yang disampaikan oleh para pemateri setema dengan judul “Pemanfaatan Limbah Dapur”, Ibu Siti Fitriah menyampaikan tentang pemilihan sampah dan bagaimana cara pengolahan limbah sampah rumah tangga sesuai jenisnya untuk dapat dimanfaatkan kembali. Sedangkan penulis memberikan materi tentang pemanfaatan limbah rumah tangga khususnya tentang bahaya limbah dan bagaimana pengolahan limbah dapur khususnya minyak jelantah agar dapat digunakan sebagai bahan baku pembuatan sabun, lilin aroma terapi dan biodiesel. Penyuluhan yang dilakukan diharapkan mampu memberikan wawasan bagi warga khususnya ibu-ibu PKK desa penggerak kemajuan dan perubahan desa demi terciptanya “Desa Bersih Limbah”. Dalam kegiatan penyuluhan ini belum terdapat kegiatan praktek langsung atau pelatihan, sehingga kedepan diharapkan dilakukan suatu pelatihan serta pendampingan untuk memberikan wawasan tambahan kepada ibu rumah tangga tentang manfaat lain dari limbah dapur dan bagaimana melakukan pengolahannya. Untuk tujuan jangka panjang diharapkan Desa Glagahsari dapat menjadi desa produsen atau penghasil barang-barang kreasi dari hasil pengolahan limbah dapurnya dalam skala besar sehingga ibu rumah tangga ini dibina untuk menjadi entrepreneur yang mampu memiliki penghasilan tambahan dan menggerakkan UMKM di desanya.
Outboard Engine Maintenance and Repair Training for Fishermen and Kelompok Sadar Wisata (PokDarWis) in Tlocor Sidoarjo Gafur, Abdul; Haryono, Edi; Endro, R. Dimas; Alfanda, Benedcita Dian; Pramesti, Lely; Julianto, Eko; Santoso, Mardi; Kusminah, Imah Luluk; Antoko, Bambang; Ariwiyono, Nopem; Umbara, Albert Wida
Society : Jurnal Pengabdian Masyarakat Vol. 4 No. 3 (2025): Mei
Publisher : Edumedia Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55824/jpm.v4i3.565

Abstract

Outboard Engine has been known and used as motor boat among of the residents of fisherman community in Tlocors village. Motor boats powered by outboard engine are not only used for fishing, but also used as marine tourism facilities. Considering the vital functional usage of outboard engine for Tlocor’s fisherman community and village community tourism groups  (Pokdarwis), for maintaining    economic livelihood, any interrupted items that happened during motor operation periods would be very significant impact on their daily life. Loss of income resulting from engine problem is the most of many potential cases occurred on the communities.   Hence, it is necessary to provide assistances for both Tlocors Communities, the fishermen, and village community tourism groups. Assistances were also considered part of the public service obligation to communities provided by the Institution.  Training on Outboard Engine Maintenance and Repair would become the scheme of the assistances. This tailor- made assistances would be targeted to both clusters. Better understanding and having a certain competency level on outboard engine maintenance and repair would have a significant value in order to empowering both communities, and become the main purpose of the assistance as well
Co-Authors Abdul Gafur Abdullah, Kharis Agung Purwana Ahmad Rifqul Muzakki Alfanda, Benedcita Dian Alfanda, Benedicta Dian Alrasyid, M. Dhani Aminatus Sa’diyah Anggara Trisna Nugraha annas Firmansyah Ariwiyono, Nopem Arrosyid, Alwi Arumsari, Nurvita Asrori Asrori Bambang Antoko Bayu Baskoro Aji Aji Burniadi Moballa Cahyono, Luqman Dahlan, Robi Dwi Sasmita Aji Pambudi Edi Haryono Edi Haryono Eko Julianto Eky Novianarenti Eky Novianarenti Emie Santosa Emie Santosa Endro, R. Dimas Fadhillah, Dinda Rizka Faruq As'ary Faruq As’ary, Muhammad Heroe Poernomo Imah Kusminah Imaniah Sriwijayasih Kusminah, Imah Luluk Kusuma, George Endri Mardi Santoso Mochamad Rizal Muhammad Rifqi Zulfahmi Naufal Adi Hidayah Ponti Almas Karamina Primaningtyas, Widya Emilia Projek Priyonggo Sumangun L Projek Priyonggo Sumangun Lukitadi R Dimas Endro Witjonarko Raden Dimas Endro Witjonarko Rafly Ibrahim Rikky Leonard Rini Indarti Rini Indarti RR. Ella Evrita Hestiandari Sry Wahyuni Sumardiono Sumardiono, Sumardiono Syamsiar, Syamsiar Tubuh Pierehanto Umbara, Albert Wida Wulandari, Kiki Dwi