Studi Eksperimen Perpindahan Panas Konveksi Paksa Dengan Variasi Tekanan Udara Pada Benda Uji Pipa Stainless

Abstract

Heat transfer can be defined as the transfer of energy from one area to another as a result of the temperature difference between these areas from a higher temperature fluid to another fluid with a lower temperature. According to the heat transfer is generally divided into three different ways of heat transfer: conduction, convection, and radiation. Forced convection is expressed in the value of the convection coefficient (h). The convection coefficient is influenced by the heater heat, fluid velocity, and the thermocouple distance point on the test object. This research was conducted using a stainless pipe with a length of 0.63m and a pipe diameter of 0.017m. The purpose of this study was to obtain a design for a forced convection heat transfer practicum based on variations in air pressure, to obtain a heat transfer value from a device designed based on variations in air pressure. So this comparison is made to determine the value of heat transfer from 3 variations of air pressure to determine air pressure using an anemometer. In this study, the highest forced convection heat transfer coefficient value was air pressure of 0.059 Kpa with air velocity of 7.0 m/s of 161.72 W/m2.°C.