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Perancangan Prototipe Miniatur Pembangkit Listrik Tenaga Air Wasiran, Wasiran; 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.v7i1.670

The prototype tool of the hydroelectric power plant is an engineering tool as a demonstration of a power plant that is moved by water. So the tool will be redesigned by researchers as a comparison of courses in mechanical engineering study programs, especially engineering thermodynamics courses. In the design of the tool will be designed using the solid work computer program. Then in the selection of design components that are used are easily obtained or within reach of purchasing the tool, namely the frame holder for the power plant using holo steel, a water pump using a 260 bit jet pump that uses 200 watts of electric power, electricity supply using an alternator that has 200 watts of electric power. The water-driven turbine is the process made using Pvc pipe which has a tilt angle on the blade of 30 o. turbine cover using acrylic material with a thick size of 10 mm, water reservoir using steel plate size 4 mm and lamp load that will be tested 100 watt capacity. At the capacity of this tool requires a cost of approximately Rp. 5,811,500,

ANALISIS HASIL PENGUJIAN ALAT DESTILASI MINYAK SEREH DENGAN KAPASITAS 10 KG Putrawan, Pajar; Yudisworo, W. Djoko; Lazuardi, Dedi
SEMINAR TEKNOLOGI MAJALENGKA (STIMA) Vol 8 (2024): STIMA 8.0 : Menuju Kesinambungan : Inovasi dan Adaptasi Teknologi untuk Pembangunan Be
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/stima.v8i0.1197

Lemongrass is one type of essential oil plant, which is considered to have developed. From the distillation of its leaves, lemongrass oil is obtained which is known in the world of trade as Citronella Oil. Currently, the development of essential oils is a major concern for the Indonesian government. Of the various raw materials for making Essential Oils, one of the essential oil raw materials in Indonesia that is good to be developed is Lemongrass. The purpose of this study was to obtain essential oils through the Extraction and Distillation process, obtaining Yield percentage and Water Content. Based on the results of the test and observation, the essential oil produced has physical and chemical characteristics that are in accordance with the requirements. The characteristics of lemongrass essential oil produce essential oils with a specific gravity of 0.86 mg/L.

Pemilihan komponen dan pembuatan alat destilasi minyak sereh dengan kapasitas 10 kg Ifan; Lazuardy, Dedi; Djoko Yudisworo, W.
SEMINAR TEKNOLOGI MAJALENGKA (STIMA) Vol 8 (2024): STIMA 8.0 : Menuju Kesinambungan : Inovasi dan Adaptasi Teknologi untuk Pembangunan Be
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/stima.v8i0.1199

This research aims to design and manufacture a citronella oil distillation device with a capacity of 10 kg. The component selection process involves analysis of various factors such as efficiency, cost, material availability, and ease of maintenance. The main components selected include extraction tubes, condensers and heating systems. Choosing the right material, such as stainless steel for corrosion resistance, is one of the main focuses to ensure tool durability. The design of this distillation tool takes into account aspects of ergonomics and user safety. The manufacturing process involves several stages, starting from detailed design, material procurement, to assembling and testing the equipment. The test results show that this distillation equipment is capable of producing lemongrass oil with quality that meets standards, as well as better time efficiency compared to traditional methods. Thus, it is hoped that this distillation equipment can increase lemongrass oil production, especially for farmers and small and medium industries.

PENGUJIAN ALAT DESTILASI MINYAK SEREH DENGAN KAPASITAS 10 KG Tridaya, Mogi Tridaya; Yudisworo, Djoko; Lazuardy, Dedi
SEMINAR TEKNOLOGI MAJALENGKA (STIMA) Vol 8 (2024): STIMA 8.0 : Menuju Kesinambungan : Inovasi dan Adaptasi Teknologi untuk Pembangunan Be
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/stima.v8i0.1200

Testing of a 10 kg capacity lemongrass oil distillation apparatus was carried out to evaluate the performance and efficiency of the distillation process. This study includes setting main parameters such as distillation temperature, process time, and type of raw material used. The main goal is to ensure that the distillation equipment can produce lemongrass oil with optimal quality according to its capacity. The testing method involves measuring the distillation results in terms of citronella oil yield and chemical composition. This analysis provides in-depth insight into the effectiveness of distillation equipment in maintaining the quality of the lemongrass oil produced. The test results show that setting the temperature and distillation time has a significant effect on the final result, with certain conditions producing better quality lemongrass oil. The implication of this research is the importance of an in- depth understanding of operational parameters in the distillation process to maximize the production of consistently high quality lemongrass oil.

The Pengaruh Variasi Sudut Kemiringan Pisau terhadap Kapasitas Produksi dan Efisiensi Pemotongan Mesin Pencacah Rumput Endang Prihastuty; Achmad Tohasan; W. Djoko Yudisworo; Muhamad Faisal; Cucu Adi
Mestro: Jurnal Teknik Mesin dan Elektro Vol 8 No 01 (2026): Edisi Juni (In Progres)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v8i01.824

Forage is the main component in ruminant farming, but manually chopping grass is considered inefficientin terms of time and effort. This study aims to design and build a grass chopper machine with blade anglevariations of 15°, 30°, and 60°, as well as to find out the effect of each angle on production capacity, thequality of the chopped grass, and cutting efficiency. The machine is designed using a Honda GX160gasoline engine with 5.5 hp, an 8:1 ratio pulley transmission system, a frame made of angle iron, and HSSsteel blades, with machine dimensions of 80 cm long, 45 cm wide, and 101.11 cm high. Testing was carriedout by inserting 3 kg of grass material for each blade angle variation. The test results showed that a 60°blade angle couldn’t be used because it collided with the machine body. A 15° blade angle gave aproduction capacity of 72 kg/hour with a cutting efficiency of 63% and uneven chopping quality.Meanwhile, a 30° blade angle provided the best performance, with the highest production capacity of 90kg/hour, cutting efficiency reaching 66%, and even chopped quality. Based on these results, it wasconcluded that a 30° blade tilt is the most optimal angle to use on a grass chopper machine for producinggood-quality chops more efficiently.

The Pengaruh Variasi Sudut Kemiringan Pisau terhadap Kapasitas Produksi dan Efisiensi Pemotongan Mesin Pencacah Rumput Endang Prihastuty; Achmad Tohasan; W. Djoko Yudisworo; Muhamad Faisal; Cucu Adi
Mestro: Jurnal Teknik Mesin dan Elektro Vol. 8 No. 01 (2026): Edisi Juni 2026
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v8i01.824

Forage is the main component in ruminant farming, but manually chopping grass is considered inefficientin terms of time and effort. This study aims to design and build a grass chopper machine with blade anglevariations of 15°, 30°, and 60°, as well as to find out the effect of each angle on production capacity, thequality of the chopped grass, and cutting efficiency. The machine is designed using a Honda GX160gasoline engine with 5.5 hp, an 8:1 ratio pulley transmission system, a frame made of angle iron, and HSSsteel blades, with machine dimensions of 80 cm long, 45 cm wide, and 101.11 cm high. Testing was carriedout by inserting 3 kg of grass material for each blade angle variation. The test results showed that a 60°blade angle couldn’t be used because it collided with the machine body. A 15° blade angle gave aproduction capacity of 72 kg/hour with a cutting efficiency of 63% and uneven chopping quality.Meanwhile, a 30° blade angle provided the best performance, with the highest production capacity of 90kg/hour, cutting efficiency reaching 66%, and even chopped quality. Based on these results, it wasconcluded that a 30° blade tilt is the most optimal angle to use on a grass chopper machine for producinggood-quality chops more efficiently.

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