Influence of Fluid Inflow Rate on Performance Effectiveness of Shell and Tube Type Heat Exchanger

Abstract

In industrial processes, heat exchangers are needed to transfer a certain amount of heat energy from the system to the environment. The research object observed using a heat exchanger type 1- 2 shell and a tube was water in hot and cold fluids. It aimed to determine the relationship between hot and cold fluids and the heat transfer coefficient, fouling factor, and tool efficiency. The research method varied the hot water by 50, 70, 90, 100 mL/s and the cold water by 20, 40, 60, 80 mL/s. After getting the data for each fluid's inlet and outlet temperatures, the effectiveness analysis was calculated. The research results on the hot fluid variable demonstrated that the more the fluid was flowing into the shell, the higher the heat transfer coefficient, heat transfer velocity, and average effectiveness. Meanwhile, the fouling factor tended to decrease along with the increasing hot fluid. The cold fluid variable, the higher the cold fluid flows into the tube, the higher the heat transfer coefficient and the average heat transfer velocity. Furthermore, the fouling factor and effectiveness tended to decrease along with the increasing cold fluid flow.

Analisis Koefisien Perpindahan Panas Alat Double Pipe Heat Exchanger Berbasis Computational Fluid Dynamics

“…Proses transfer panas terjadi ketika fluida panas mengalir melalui inlet tube dan terus menurunkan suhu hingga mencapai aliran keluar pada outlet tube. Selanjutnya, fluida dingin yang mengalir melalui inlet shell akan mengalami peningkatan suhu hingga mencapai outlet shell [16][17].…”

Analisis Nilai Transfer Panas Dalam Heat Exchanger Type 1-1 Shell and Tube Aliran Counter Current Menggunakan Computational Fluid Dynamics

“…Sedangkan, panas disebabkan oleh pengaruh densitas atau suhu disebut sebagai panas konveksi. Terdapat dua variasi suhu dan laju alir fluida panas masuk yang akan digunakan sebagai penelitian untuk mendapatkan analisis besarnya nilai transfer panas yang terjadi [17]. Nilai transfer panas tertinggi (18974,27 W) menunjukkan kinerja shell and tube heat exchanger type 1-1 terbaik yang diperoleh jika digunakan oil yang masuk pada shell side dengan suhu 393 K dan laju alir 0,1 kg/s serta air yang masuk pada tube side dengan suhu 290 K dan laju alir 0,8 kg/s.…”