Analisis Keseragaman Aliran Dua Fase pada Multi Channel Distributor untuk Evaporator Mesin Es Balok

Abstract

In the block ice machine at Politeknik Perkapalan Negeri Surabaya (PPNS), ice freezing delays occur due to uneven refrigerant distribution in the evaporator. This study focuses on two-phase flow uniformity analysis in a multi-channel distributor using Computational Fluid Dynamics (CFD) simulation with the Volume of Fluid (VOF) method. The research is limited to the vertical downward configuration to evaluate phase distribution, velocity, and static pressure. Simulation results show that the vertical downward configuration provides a uniform distribution with a deviation value of 11.14%, proving the positive effect of gravitational assistance on liquid phase stability. These findings can serve as a design reference for improving distributor performance in block ice machines.