Improvement of heat transfer in ice container of ice block machine in Karimun Jawa by using baffles.

• Main Author: Wahyu Saputro, Genesia
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/27477
• Institution: Institut Teknologi Bandung

The ice block machine in Karimun Jawa is one of the facilities that can later be used <br /> <br /> <br /> <br /> to provide ice for the local community, most of whom are fishermen. This ice block making <br /> <br /> <br /> <br /> machine is a custom ice block machine with 180 kg capacity for one production and is <br /> <br /> <br /> <br /> currently in the testing phase. Based on the experience of the manufacturer, the value of <br /> <br /> <br /> <br /> heat transfer in this machine is still low and ice forming time is not uniform . <br /> <br /> <br /> <br /> One way to increase the value of heat transfer is by changing the flow configuration <br /> <br /> <br /> <br /> so that heat transfer value between blocks of ice and brine is increased by using baffles. For <br /> <br /> <br /> <br /> this reason, research is needed to determine what kind of baffle that perform best in <br /> <br /> <br /> <br /> increasing the heat transfer value between block of ice and brine. <br /> <br /> <br /> <br /> To determine this kind of baffle, 2 dimensional brine flow simulation is simulated <br /> <br /> <br /> <br /> with a configuration without baffles and 4 different types of baffles. The results of the <br /> <br /> <br /> <br /> simulation are the average heat transfer coefficient of convection and heat flux in each ice <br /> <br /> <br /> <br /> container. This value is compared and with other considerations such as ease of installation, <br /> <br /> <br /> <br /> vertical baffle is chosen. Then experimental testing with the selected baffle is conducted. <br /> <br /> <br /> <br /> The results of experimental testing showed that there was a decrease in ice formation time <br /> <br /> <br /> <br /> from 14 hours to 12 hours 30 minutes or around 10%. <br /> <br /> <br /> <br /> Keyword block Ice, Block Ice Machine, Baffle, Heat Transfer