Modification of a Vacuum Freeze Dryer With Integrated Airflow Channel

Student: jolayemi uthman Momoh (Project, 2025)
Department of Agricultural and Bio-resources Engineering
Federal University of Agriculture, Abeokuta, Ogun State

Abstract

ABSTRACT This research focuses on the modification of a vacuum freeze dryer by integrating airflow into the system to enhance drying efficiency and product quality. Freeze drying, a superior method for preserving food and sensitive materials, is hindered by inefficiencies in traditional designs, such as non-uniform drying and extended processing times. This study incorporates design improvements, including optimized airflow channels, enhanced evaporator connections, and better insulation to address these issues. A test run of the machine using water samples revealed a uniform reduction in mass and an energy efficiency of 9%. The limited time-Frame hindered an extensive testing of the machine. This work underscores the importance of tailored technological interventions to advance freeze-drying systems, with implications for agricultural, pharmaceutical, and biotechnological applications. The development of this new of the machine would advance enhance productivity in this sector of fish drying.

Keywords
freeze drying food preservation efficient drying methods food quality post harvest preservation
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