Steven Darmawan
Program Studi Teknik Mesin, Fakultas Teknik Universitas Tarumanagara

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TEMPERATURE MEASUREMENT AND CALIBRATION PADA ARMFIELD TH 1: PROPERTI TERMOMETRIK DAN RESPON SENSOR TEMPERATUR Kevin Juniar; Steven Darmawan
POROS Vol. 17 No. 2 (2021): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v17i2.20046

Abstract

Calibration is needed to ensure that the measuring instrument works according to existing standards. The ability to calibrate measuring instruments is very necessary in the engineering world, especially calibration of temperature measuring instruments due to the importance of measuring temperature in the field of mechanical engineering. The purpose of this practical work report is to operate the Armfield TH1-Temperature Measurement and Calibration tool properly, investigate the thermometric properties of various temperature measuring instruments, also determine the response received by the device to changes in temperature. In testing the thermometric properties, using PT100 REF as a reference for other temperature measuring instruments. Thermistor Reading is the most accurate because it has the smallest difference with the PT100 REF compared to other measuring instruments. Thermistor Reading produces an average temperature difference of 0.036°C compared to PT100 REF. In testing the response of temperature sensors, the response given by the thermocouple temperature gauge is quite good both in the water bath and in the flask. When the thermocouple was transferred to the flask quickly, the temperature only ranged from 2.38°C to 4.05°C with a temperature change of 1.67°C, which means that the temperature measurement is quite stable when in the flask.
PELATIHAN TEKNOLOGI TEPAT GUNA (ALAT PENGERING DAN VACUUM SEALER) BAGI PENGRAJIN BAWANG GORENG DI KOTA MATSUM MEDAN Sobron Lubis; Steven Darmawan; Silvi Ariyanti
Jurnal Bakti Masyarakat Indonesia Vol. 5 No. 2 (2022): Jurnal Bakti Masyarakat Indonesia
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jbmi.v5i2.22578

Abstract

Fried onions are a compliment that is almost always present in food, has a fragrant aroma and a savory but slightly bitter taste but many people like it. Therefore, many housewives make this fried onion business, but in general, the manufacturing process is still done traditionally starting from peeling the skin, slicing, frying, slicing, and wrapping. A housewife who is in this fried onion business, Herni Susanti has been doing this business since 2019 but still uses the manual method. In her daily life, the processing of fried onions involves mothers who are around the house. Because this business is still new and started with a business capital that is not that big, the problem that arises in increasing production capacity is processing time, especially in the case of drying fried onions which is still done conventionally by drying on paper. Besides that, the packaging used still uses plastic tied with rubber, so the products produced are not neat and the storage time is limited. The results of discussions with business owners/partners show that there is a great desire to increase production capacity by speeding up drying time, and neater and more attractive packaging in line with the increasing market demand. Based on this, this activity was carried out by providing appropriate technology training, namely onion slicing machines and vacuum sealers. Training is carried out in theory and practice in using tools and handing over tools to Partners. The results achieved were that the draining time for fried onions was shorter, namely 30 seconds, and fried onions which were stored in a vacuum-sealed plastic wrap so that fried onions could be stored longer. The use of a slicing machine can shorten the drying process of fried onions and a vacuum sealer machine can wrap deep-fried onions. vacuum and tight packaging. Training and application of appropriate technology provide significant benefits to partners in efforts to increase production capacity and shorten processing time. ABSTRAK: Bawang goreng merupakan pelengkap yang hampir selalu ada pada makanan, memiliki aroma yang harum dan cita rasa yang gurih namun sedikit pahit tetapi banyak disukai. Oleh karena itu, banyak para ibu-ibu membuat usaha bawang goreng ini, namun umumnya proses pembuatannya masih dilakukan secara tradisional mulai dari pengelupasan kulit, pengirisan, penggorengan, penirisan, dan pembungkusan. Seorang ibu rumah tangga yang menggeluti usaha bawang goreng ini yaitu Herni Susanti, sudah melakukan usaha ini sejak tahun 2019 namun masih menggunakan metode tradisional tersebut, dalam kesehariannya untuk pengolahan bawang goreng ini melibatkan ibu-ibu yang berada di sekitar perumahan. Karena usaha ini masih baru dan dimulai dengan modal usaha yang tidak begitu besar, maka persoalan yang muncul dalam meningkatkan kapasitas produksi adalah waktu proses, terutamanya dalam hal pengeringan bawang goreng yang masih dilakukan secara konvensional dengan mengeringkan di atas kertas. Di samping itu kemasan yang digunakan masih menggunakan plastik yang diikat dengan karet, sehingga waktu penyimpanan produk terbatas. Hasil diskusi dengan pemilik usaha /mitra bahwa terdapat keinginan untuk meningkatkan kapasitas produksi dengan mempercepat waktu pengeringan, kemasan yang lebih rapi dan menarik. Berdasarkan hal tersebut kegiatan ini dilakukan dengan memberikan pelatihan teknologi tepat guna yaitu mesin peniris bawang dan vacuum sealer. Pelatihan dilakukan secara teori dan praktik penggunaan alat serta penyerahaan alat kepada Mitra. Hasil yang dicapai adalah waktu penirisan bawang goreng lebih singkat yaitu 30 detik dan bawang goreng yang disimpan dalam plastik pembungkus vacuum dalam keadaan tertutup rapat sehingga bawang goreng dapat disimpan lebih lama.Pelatihan dan penerapan teknologi tepat guna memberi manfaat yang berarti kepada mitra dalam upaya meningkatkan kapasitas produksi dan mempersingkat waktu proses.