I. Made Arsana, Theodorus Wiyanto Wibowo, Muhaji, Handini Novita Sari, Haydar Aly Kurniawan
Heat exchangers have an important role in everyday life. A heat exchanger is a device used as a means of energy transformation. The development of heat exchangers undergoes a form transformation that aims to increase efficiency through its work function. Double-pipe heat exchanger with a corrugated tube type is a simple and often applied method used in heat transfer. The use of a concave shape on the corrugated tube aims to increase the convection heat transfer area. The purpose of this research is to determine the effect of using concave shapes on corrugated tubes on the effectiveness of double-pipe heat exchangers. The object of this research is a double pipe heat exchanger with a concave corrugated tube and then varied with triangular, trapezoidal, and square concave shapes. Data collection of experimental results on double pipe heat exchanger using pressure gauge, flowmeter, and thermocontrol as research instruments. The research data were analyzed descriptively calculated theoretically and then converted into graphs and tables. The results achieved to date are the addition of concave shape variations on corrugate tubes can increase the value of thermal conductivity and other characteristics, in the form of a concave triangle with the effectiveness value increased by 11,63%. © 2024 EDP Sciences. All rights reserved.
Mechanical Engineering Study Program, Engineering Faculty, Universitas Negeri Surabaya, Indonesia
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