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ABSTRACTSolar fish dryer is a multi-purpose facility, which is of great importance to the economic growth of coastal area fisheries folk. Fish drying is essential for preservation in aquacultural applications. It is performed either using fossil fuels in an artificial mechanical drying process or by placing the fish under the open sun. An artificial mechanical drying method is costly and has a negative impact on the environment, while the open sun method is totally dependent on the weather. This paper presents the state of various designs of solar dryers are reported in the literature that are widely used today. The indirect, direct, and mixed mode dryers that have shown potential in drying agricultural, aquacultural products are discussed. Aside from identifying the active and passive mode solar dryers, we also highlight the environmental influence on solar energy (harnessing) that plays a vital role in the solar drying sector. The solar drying system utilizes solar energy to heat up air and to dry any food substance loaded, which is beneficial in reducing wastage of product and helps in preservation.
