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Afdhal Kurniawan Mainil
Jurusan Teknik Mesin, Fakultas Teknik, Universitas Bengkulu
Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Mechanical Engineering

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PENGARUH PENAMBAHAN KONDENSOR DUMMY (TIPE HELICAL COIL, TROMBONE COIL DAN MULTI HELICAL COIL) TERHADAP TEMPERATUR RUANGAN DAN TEMPERATUR AIR PANAS Adi Hans Purba; Azridjal Aziz; Rahmat Iman Mainil; Afdhal Kurniawan Mainil
Jurnal Sains dan Teknologi Vol 14 No 1 (2015): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik - Universitas Riau

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This paper provides a review of i.e: temperature achievement of three different dummy condenser. The study review was conducted to know the effect of adding dummy condenser coil type helical, coil trombone and multi helical coil without circulating water to room temperature and the temperature of the hot water. The method used in this review was a comparative method among tree types of dummy condenser i.e: helical coil, trombone coil and multi helical coil. The result comparison showed that the addition of dummy condenser type multi helical coil was better than dummy trombone coil and helical coil types. In the addition of dummy condenser without circulating water with multi helical coil, heated water temperature reached 64.73 oC in 3000 Watt of load. Whilst, the helical coil on the lowest room temperature reached 16.11 oC at the use of no load (19.26 oC on multi helical coil without load).
PENGARUH VARIASI ARAH PUTARAN FAN TERHADAP PENDINGINAN PADA PENDINGIN MINUMAN PORTABLE MENGGUNAKAN TERMOELEKTRIK KAPASITAS 4,7 LITER Rahmat Iman Mainil; Syafri; Azridjal Aziz; Renhard Niptro Gultom; Afdhal Kurniawan Mainil
Jurnal Sains dan Teknologi Vol 14 No 2 (2015): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik - Universitas Riau

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Portable beverage cooler (PBC) capacity of 4.7 liters using thermoelectric cooler (TEC) module was used to determine the cooling rate of PBC. This study employed active peltier elements by comparing two variations of direction of fan rotation (induced draft fan and force draft fan) and cooling loads. Each experiments was conducted until the temperature of cooling room reach the lowest temperature. By using force draft fan the data showed that by using three TEC module the cooling room temperature can reach 14,6 oC in 95 minute (without cooling load) and 25,5 oC in 40 minutes (maximum cooling load, 6 beverage cans).Whereas, by employing three TEC and using induced draft fan the cooling room reach temperature 17,4 oC in 55 minutes (without cooling load), and 25,6 oC in 35 minutes (maximum cooling load, 6 beverage cans).
KARAKTERISTIK KINERJA PIPA KALOR MENGGUNAKAN STRUKTUR WICK SCREEN 100 MESH DENGAN FLUIDA KERJA AIR Wandi Wahyudi; Rahmat Iman Mainil; Azridjal Aziz; Afdhal Kurniawan Mainil
Jurnal Sains dan Teknologi Vol 15 No 1 (2016): Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik - Universitas Riau

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Pipa kalor merupakan alat penukar kalor dengan dimensi yang kecil tetapi dapat memindahkan kalor yang besar. Banyak penelitian mengenai pipa kalor, guna memperoleh peningkatan kinerja termalnya dengan memodifikasi fluida, orientasi, kecepatan putar dan struktur wick. Dalam penelitian ini pipa kalor dibuat dari pipa tembaga berdiameter 9,525 mm, tebal 1 mm dan panjang 400 mm menggunakan screen 100 mesh sebagai struktur wick dengan air sebagai fluida kerja. Variasi pengujian menggunakan 3 variasi sudut kemiringan 0o, 45o, 90o dan 4 variasi heat input 3 watt, 4 watt, 5 watt dan 6 watt untuk melihat pengaruhnya pada kinerja pipa kalor. Hasil penelitian menunjukkan bahwa semakin besar sudut kemiringan terhadap heat input, maka semakin kecil nilai hambatan termalnya. Hambatan termal terendah terjadi pada sudut 90o dengan heat input 6 Watt sebesar 8,60˚C/Watt. Koefisien perpindahan panas terbesar dan temperature difference terkecil terjadi pada sudut kemiringan 90o dengan nilai 97,70W/˚C m² dan 31,8°C.
Co-Authors Adi Hans Purba Azridjal Aziz Rahmat Iman Mainil Renhard Niptro Gultom Syafri Wandi Wahyudi