11th INTERNATIONAL CONGRESS ON ENGINEERING AND TECHNOLOGY MANAGEMENT, İstanbul, Türkiye, 16 Mart 2024, ss.136-142
Industrial ovens are widely
used equipment in many areas of the food industry. Heating in these ovens is provided using electricity, natural
gas, or solid fuel. Some of the thermal
energy obtained from these fuels is transferred to the inner environment of the oven through heat exchangers. The
remaining energy is discharged into the atmosphere through the oven chimney as hot air. This unused
heat constitutes a significant part of the fuel
cost. The heat exchangers' efficiency in these ovens should be increased to
reduce energy losses. In this study,
the thermal analysis of the heat exchanger of an industrial- type oven is performed using the finite
element method, and the internal
flow of hot air is examined.
Finite element analyses are experimentally verified, and the efficiency of the heat exchanger is reviewed. In experimental studies,
an industrial-type oven with a natural
gas heat exchanger produced by FİMAK Makina Inc. is used. The temperature values of the air leaving the heat
exchanger operated under 50 mbar gas pressure are determined. In addition, side surface temperatures are recorded
during the experiment using six thermocouples. At the end of the study, the hot air flow behavior
inside the heat exchanger is demonstrated.