Design and Fabrication of Tilted Hot-air Fish Dryer Using Heat Sensor


The tilted of hot-air fish dryer using the heat sensor were designed and constructed to ease the problems of fish drying in Palawan. The machine was composed and assembles of five components namely; drying chamber, furnace, frame, chimney, and tilted heat exchanger. There are four trays inside the drying chamber in which is the container of the product. The heat exchanger of the fish dryer forming 40 degrees tilted and also has operated as a chimney of the furnace. A The heat sensor placed in the drying chamber to monitor the desired temperature and controls the feeding of fuel in the furnace. The dryer operates by the combustion of fuel for heating the air that enters the drying chamber and temperature could be achieved from 29 to 70 degree Celsius. The study was conducted by performing three trials. During the testing of the performance of fish dryer, the temperature was checked in every hour. The initial weight of the dried fish before the five hours drying was 6.0 kilograms and the final weight after drying was at an average of 2.23 kilograms. The product produced of good and clean dried fish with a drying efficiency of 85%. In terms of cost analysis, the machine has a payback period of 2 years. This drying system could be a substitute for local drying methods, especially in poor weather conditions. The hot air fish dryer is highly recommended used for fish produces and a local community of coastal and sub-urban areas, however, further changes were needed.

Keywords: dryer, fish, heat, hot-air, tilted,

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