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<![CDATA[Analisa Perbandingan Performansi AC SPLIT Konvensional Dengan AC SPLIT Tenaga Surya ]]>
<![CDATA[Yudhy Kurniawan]]>
<![CDATA[ Jurnal Teknik Mesin Vol 14 No 1 (2021): Jurnal Teknik Mesin ]]>
Publisher : <![CDATA[Politeknik Negeri Padang ]]>
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DOI: 10.30630/jtm.14.1.409
<![CDATA[Currently, the world's energi needs are still dominated by depleting fossil fuels, where the largest consumption produced from these fossils is electrical energi. For tropical country conditions, on average, every house and in city buildings use split AC as a tool to condition the room so that it feels comfortable for its residents. Where about 60% utilize electrical energi. In this study, split AC uses solar power as an alternative to electrical energi by using a solar photovoltage (PV) system as a medium for absorbing solar radiation to be converted into electrical energi in split AC. The goal is that the use of solar radiation is able to reduce the use of electricity from PLN, which so far requires a large amount of money. The research method begins by making a model of a device that is modified by an electric panel on a split AC connected to an inverter to convert DC to AC current from the PV cell. From the use of solar cells as electrical energi then the test results are compared with conventional split AC. The results obtained from the conventional split AC test can be seen that the efficiency is 85% while the solar-powered split AC has an efficiency of 73%, but for the use of electrical power that operates for 2 hours on a solar-powered split AC, it is more efficient with a power of 376 Wh per day.]]>
<![CDATA[KAJI EKSPERIMENTAL DEHUMIDIFIER PORTABLE BERBASIS TERMOELEKTRIK DENGAN VARIASI ARUS LISTRIK MASUKAN ]]>
<![CDATA[Yudhy Kurniawan]]>;
<![CDATA[Aa Setiawan]]>
<![CDATA[ Jurnal Teknologi Terapan Vol 1, No 1 (2015): Jurnal Teknologi Terapan ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Indramayu ]]>
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DOI: 10.31884/jtt.v1i1.32
<![CDATA[Sebuah prototipe didesain untuk mendinginkan dan kemudian sekaligus mengeringkan atau disebut dehumidifier. Alat ini menggunakan termoelektrik sebagai komponen utama dalam dehumidifikasi. Hal ini mengingat alatnya relatif murah dengan daya yang kecil, portable, dan ramah lingkungan karena tanpa menggunakan refrigeran sebagai fluida kerja. Penelitian ini dibuat atas dasar permasalahan gudang penyimpan benih sayuran, dimana kelembaban belum dapat dikontrol dengan baik. Pengontrolan kelembaban sangat berpengaruh dalam memperpanjang umur tumbuh benih, sehingga para petani dapat menyimpan benihnya dalam waktu lama. Untuk benih sayuran dibutuhkan keadaan ruangan yang relatif dingin sekitar 20 oC dan kelembaban relatif (RH) berkisar 45% - 50%. Umumnya peralatan menggunakan refrigeran atau desiccant untuk proses dehumidifikasi penyimpan benih, sedangkan penggunaan termoelektrik belum pernah diaplikasikan pada gudang penyimpan benih sayuran.Alat ini bekerja dengan 2 tahap. Dimana udara lingkungan masuk melalui tahap 1 yang merupakan proses pendinginan yang disebarkan oleh heat sink dari pendinginan Peltier sehingga terjadi penurunan temperatur kemudian dengan adanya plat pengarah udara dingin dialirkan menuju tahap 2 yang merupakan proses pemanasan (kebalikan efek Peltier) dimana pada tahap ini udara dingin dikeringkan melalui heat sink sehingga terjadi penurunan kelembaban. Mengalirnya udara kering keluar system dibantu oleh fan axial. Dari kinerja system ini diharapkan terjadi proses dehumidifikasi yang diharapkan.]]>
<![CDATA[TEST CHARACTERISTICS OF CENTRIFUGAL PUMPS ON COOLING HYDRONIC SYSTEM USING ENVIRONMENTAL FRIENDLY REFRIGERATION ]]>
<![CDATA[Yudhy Kurniawan]]>;
<![CDATA[Kusnandar Kusnandar]]>
<![CDATA[ Jurnal Teknologi Terapan Vol 4, No 1 (2018): Jurnal Teknologi Terapan ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Indramayu ]]>
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DOI: 10.31884/jtt.v4i1.93
<![CDATA[In generally cooling hydronic system applied to large-scale commercial or industrial use, where water cooling is processed through heat transfer mechanism in the evaporator pipe using a vapour compression system such as a chiller with refrigerant. The research idea is based on not available practice test of cooling hydronic system at the Department of Refrigeration and Air Conditioning Engineering at State Polytechnic of Indramayu which is the main competency in the course of Air Conditioning Applied. As teh utilization practice made cooling hydronic system by utilizing a vapour compression system that is split AC using refrijeran R32 is environmentally friendly. The split AC system modifies its evaporator coil into a heat exchange medium to cool water in the water tank. The cold water is then distributed in the piping installation system with the two pumps that are varied in series and parallel. From this process, it is necessary to know the working capability of the pumps in terms of its characteristics (head and capacity) or its performance, including energy losses and cooling capacity system. The results obtained are analyzed and the calculation is in accordance with theoretically known study.]]>
<![CDATA[KAJI EKSPERIMENTAL PANAS KONDENSOR AC SPLIT DENGAN VARIASI PUTARAN FAN UNTUK PENGERINGAN PADI ]]>
<![CDATA[yudhy kurniawan]]>;
<![CDATA[Kusnandar Kusnandar]]>;
<![CDATA[Yusup Nur Rohmat]]>;
<![CDATA[wardika wardika]]>
<![CDATA[ Jurnal Teknologi Terapan Vol 6, No 2 (2020): Jurnal Teknologi Terapan ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Indramayu ]]>
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DOI: 10.31884/jtt.v6i2.265
<![CDATA[The use of Split of Air Conditioning (AC) which is usually used for air conditioning for human convenience. In this study a split AC was used for drying rice. Rice drying using Split AC is a type of artificial drying that has an advantage compared to natural, which is shorter drying. In Split AC the hot air generated from the condenser released into the environment is useless will be flowed through the air duct to be used for drying rice. The use of condenser heat is carried out to find out how to grow rice by using variations in the condenser fan speed regulation. In Split AC, it is done to find out the flow of drying with a variation fan rotation speed of 450 rpm and 800 rpm. From the results of the data experiment for taking around 1.5 hours in the drying process obtained moisture content is 8% and 12% for the 450 rpm and 800 rpm condenser fan rotation each. Although the temperature of the air produced by the condenser heat is 53.6 oC and 50.6oC. The other data of relative humidity of the air (Relative Humidity) is 15%.]]>
<![CDATA[ANALISA KINERJA SISTEM HEATING DEHUMIDIFIER MENGGUNAKAN AC SPLIT UNTUK PENGERINGAN IKAN ]]>
<![CDATA[Yudhy Kurniawan]]>;
<![CDATA[Ruslani Ruslani]]>;
<![CDATA[Fadil Akbar Anggriawan]]>
<![CDATA[ Jurnal Teknologi Terapan Vol 3, No 1 (2017): Jurnal Teknologi Terapan ]]>
Publisher : <![CDATA[P3M Politeknik Negeri Indramayu ]]>
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DOI: 10.31884/jtt.v3i1.8
<![CDATA[One of great potential area in the fisheries sector in West Java province is Indramayu District. Percentage of fisheries production which accounts for 60% of the needs of the fishery. Indramayu community, especially the northern coastal areas of Indramayu district of livelihood relies heavily on the this sector. During this process the dried fish production still relies on the natural conditions of the solar thermal. So that when the rainy season the fishermen feel a loss, because of natural heating hampered and finally ignored orders from customers due to the and declining fish quality, so prices soaring sales doubled. Hence, the need for attention to improving the quality of production of dry fish processing, is one of the way by utilizing the split Air Conditioning (AC) as a heating dehumidifier for drying fish. This equipment is modified by utilizing the waste heat from the condenser as reheat is then added to the electric heater is controlled according to the needs drying, and after that it was blown with using fan/blower to the drying chamber containing the fish on the shelves are arranged. The results obtained can be analyzed on the performance, drying temperature and relative humidity (RH) or water content is as expected.]]>
<![CDATA[Performance Analysis of Mango Fruit Freezing System Using Solar Energy ]]>
<![CDATA[yudhy kurniawan]]>;
<![CDATA[Bobi Khoirun]]>;
<![CDATA[Yusup Nur Rohmat]]>;
<![CDATA[M. Idrus Al Hamid]]>;
<![CDATA[Ardiyansyah Yatim]]>
<![CDATA[ Journal of Applied Mechanical Engineering and Renewable Energy Vol 3 No 1: Februari2023 ]]>
Publisher : <![CDATA[Indonesian Society of Applied Science ]]>
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DOI: 10.52158/jamere.v3i1.447
<![CDATA[The use of steam compression refrigeration systems is growing both domestically and commercially. The impact of electrical energy consumption in this sector is quite large compared to the need for electrical energy in other electronic equipment. Various efforts were made to be able to reduce the consumption of electrical energy for the cooling system. One of the efforts made by utilizing the natural potential of energy around is solar energy as a source of electrical energy in the mango freezing unit. This fruit is one of the main commodities in West Java, especially in Indramayu Regency. This study aims to determine the performance of the use of solar energy and the need for electrical energy for freezing mango fruit. In the process, freezing is carried out at temperatures below the freezing point of the ingredients/food. Good freezing usually ranges from -12 oC to -24oC. With this temperature, food can last up to 3 to 12 months. Although for freezing mango fruit, it is necessary to have additional treatment so as not to damage the physical structure and quality of the fruit. The method used is to use solar panels as a source of electrical energy in the mango freezing unit. From the tests carried out with variations in the tilt angle of the solar panels, 0°, 20°, and 40° which then from the calculation analysis it is known the comparative value of performance/efficiency and also the consumption of electrical energy generated from each angle of inclination]]>
<![CDATA[Penerapan Teknologi Budidaya Tanaman Stroberi Di Desa Pangkalan Kabupaten Indramayu ]]>
<![CDATA[Aa Setiawan Aa Setiawan]]>;
<![CDATA[Yudhy Kurniawan]]>;
<![CDATA[Wardika]]>
<![CDATA[ Journal of Applied Community Engagement Vol 1 No 1 (2021): Journal of Applied Community Engagement (JACE) ]]>
Publisher : <![CDATA[ISAS (Indonesian Society of Applied Science) ]]>
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DOI: 10.52158/jace.v1i1.192
<![CDATA[The geographical condition of Indramayu, which is in the lowlands, is not the right land for cultivating strawberry plants. But it is not impossible for this plant to grow and develop well. The purpose of this community service program is to provide technical guidance to improve the knowledge and skills of Pangkalan Village young people in cultivating strawberry plants by applying climate engineering technology. The equipment given in this activity is water cooling, air conditioning, temperature and humidity control, and spray machines. This activity can be said to be successful as seen by the skills of the participants in managing tools and growing and developing strawberry plants well.]]>
<![CDATA[Water Conditioning Refrigeration System Design and Construction for Lobster Cultivation ]]>
<![CDATA[Wardika]]>;
<![CDATA[Yudhy Kurniawan]]>;
<![CDATA[Hadi Prayitno]]>;
<![CDATA[Sintya Haula H.]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v23i1.1-7
<![CDATA[This research is to determine the cooling burden of the water conditioning system for lobster conditioning, where water must be conditioned to its temperature by its 21°C conditioning. This device uses steam compression systems precisely by utilizing water conditioning systems to condition water to stay awake at a temperature of 21°C. The method used in this study was to determine the volume of the water tank and its cooling capacity by calculating the load load and calculating the heat load through the walls of the water tank and other heat generated. For lobster cultivation, an air conditioning machine with a capacity of 1/2 PK. From the results of testing the tool for 3 hours, the results of system performance at an evaporation temperature of 15.2 °C and a product temperature of 21 °C obtained a Carnot COP of 7.11, an actual COP of 5.87, and an efficiency of 82.55%. This is in accordance with Design Carnot COP 8, actual COP design of 6.7, and design efficiency of 83%.]]>
<![CDATA[PENGEMBANGAN BALAI LATIHAN KERJA (BLK) DI BIDANG R-HVAC DI BLKK CORDOVA INDRAMAYU ]]>
<![CDATA[Yudhy Kurniawan]]>;
<![CDATA[Wardika Wardika]]>;
<![CDATA[Sunanto Sunanto]]>
<![CDATA[ Jurnal Pengabdian kepada Masyarakat (NADIMAS) Vol 1 No 1 (2022): Jurnal Pengabdian kepada Masyarakat (Nadimas) ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat ]]>
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DOI: 10.31884/nadimas.v1i1.2
<![CDATA[Salah satu permasalahan besar yang dihadapi pemerintah kabupaten Indramayu dewasa ini adalah bertambah banyaknya jumlah pengangguran terdidik. Berdasar data dari BPS (Badan Pusat Statistik) Kabupaten Indramayu, pengangguran telah mengalami kenaikan. Tercatat sejak tahun 2020 angka pengangguran ini sudah mencapai 9,21%, hal ini mengingat selama masa pandemic Covid-19 telah memporak-porandakan laju perekonomian masyarakat Indramayu. Berbagai upaya dilakukan untuk menjawab permasalahan di atas, salah satunya keberadaan Balai Latihan Kerja (BLK) yang salah satu fungsinya memberikan pelatihan dan keterampilan pada angkatan kerja putus sekolah. Namun beberapa BLK masih belum bisa menjawab secara kebutuhan pasar kerja terkait penyerapan angkatan kerja terdidik atau usaha mandiri, karena keterbatasan biaya operasional untuk mengembangkan berbagai sector keahlian. Melihat kondisi tersebut perlu ada peran upaya konkrit institusi Politeknik Negeri Indramayu (POLINDRA) dalam mewujudkan Tri Darma Perguruan Tinggi yaitu kegiatan pengabdian masyarakat, yang dalam hal ini akan mengadakan program pengembangan kewirausahaan untuk salah satu Balai Latihan Kerja (BLK) yang ada di Indramayu yaitu BLK Komunitas Cordova Indramayu di bidang jasa service Pendingin dan Tata Udara (R-HVAC). Program ini dilakukan mengingat bidang ini pangsa pasarnya cukup luas, yang mana hampir setiap rumah atau gedung membutuhkan unit pendingin dan tata udara, sementara tenaga teknisi yang menangani service atau perawatan masih terbilang minim. Untuk itu dengan keterlibatan Polindra khususnya Jurusan Teknik Pendingin dan Tata Udara mampu memberikan stimulan kepada BLK tersebut untuk dapat mengembangkan usaha pelatihannya. Kontribusi yang diberikan adalah penyediaan unit trainer R-HVAC skala domestic, alat dan bahan service, serta tenaga pengajar atau pendamping selama program PKM ini berjalan.]]>
<![CDATA[ANALISIS KINERJA PEMANFAATAN ENERGI ANGIN TERHADAP PEMBEKUAN (FREEZING) BUAH MANGGA DENGAN VARIASI KEMIRINGAN SUDUT BLADE ]]>
<![CDATA[Yudhy Kurniawan]]>;
<![CDATA[Bobi Khoerun]]>;
<![CDATA[Yusuf Nur Rohmat]]>;
<![CDATA[Ibnu Maulana]]>
<![CDATA[ JURNAL REKAYASA ENERGI Vol. 1 No. 1 (2022): Jurnal Rekayasa Energi ]]>
Publisher : <![CDATA[Politeknik Negeri Indramayu ]]>
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DOI: 10.31884/jre.v1i1.10
<![CDATA[Penggunaan energi angin sebagai sumber tenaga listrik masih rendah. Hal ini karena kecepatan angin rata-rata di Indonesia antara 2 sampai 6 m/s sehingga tidak mudah untuk menghasilkan energi listrik skala besar. Akan tetapi diketahui bahwa potensinya di Indonesa ada hampir sepanjang tahun. Tujuan pengujian alat ini adalah mengetahui apakah kinerja sistem pembekuan buah mangga bisa efisien menggunakan daya listrik dari energi angin. Metode penelitian dilakukan kajian teoritis berdasarkan literatur yang relevan, kemudian menyiapkan alat untuk set up dan instalasi pengujian dengan variasi kemiringan sudut blade kincir angin (0, 20, dan 40°). Selanjutnya data pengujian akan dilakukan analisa perbandingan kinerja dari berbagai variasi kemiringan sudut blade tersebut. Dari hasil penelitian ini dapat diperoleh nilai efisiensi refrigerasi dari mesin freezing sudut blade 0° sebesar 58 %, sudut blade 20° sebesar 55 %, dan sudut blade 40° sebesar 54 %. Sedangkan Nilai efisiensi daya turbin angin dari variasi kemiringan sudut blade 0° memperoleh nilai 26%, sudut blade 20° memperoleh nilai 25 %, sudut blade 40° memperoleh 24 %. Dari hasil efisiensi turbin angin tersebut cukup kecil untuk bisa menyuplai listrik untuk pembekuan, sehingga perlu di back up dengan energi listrik dari PLN.]]>
