In this study, the performance of direct forced convection household solar dryer for drying banana is presented. A solar dryer with a polycarbonate plates cover on a flat plate collector was constructed and it was designed in the parabolic shape. A polycarbonate cover is used to reduce heat losses while allowing the incident solar radiation to transmit into the dryer. Five batches of banana were dried in this solar dryer during January–July 2019. For each batch, 10 kg of bananas were dried. The results shown that the temperature of the drying air in the dryer varied between 35 °C to 60 °C from 8:00 a.m. to 6:00 p.m. The moisture content of the banana in the dryer was reduced from an initial value 72% (wet basis, wb) to a final value of 28% (wb) within 4 days, whereas the moisture content of the sun dried samples was reduced to 40% (wb) in the same period. There was a considerable reduction in drying time in the solar dryer as compared to natural sun drying with 48% saving drying time. High quality of solar dried product in terms of flavor, colour and texture were obtained. The payback period of the dryer is approximately 1.1 years.

在这项研究中，介绍了直接强制对流家用太阳能干燥机干燥香蕉的性能。构造了在平板集热器上带有聚碳酸酯板盖的太阳能干燥器，并设计成抛物线形。聚碳酸酯盖用于减少热量损失，同时允许入射的太阳辐射传输到干燥机中。在2019年1月至7月期间，在该太阳能干燥机中干燥了五批次的香蕉。每批次干燥10公斤香蕉。结果表明，烘干机中的干燥空气温度从8:00 am到6:00 pm在35°C至60°C之间变化。烘干机中香蕉的水分含量从初始值降低72％（湿基（wb）在4天内达到28％（wb）的最终值，而晒干样品的水分含量在同一时期降低到40％（wb）。与自然阳光干燥相比，太阳能干燥机的干燥时间大大减少，节省了48％的干燥时间。就风味，颜色和质地而言，获得了高质量的太阳能干燥产品。烘干机的投资回收期约为1.1年。