在枯燥各类蔬菜和生果，代替太阳枯燥或烘干操纵传统燃料，能够有用地操纵高温地热水。 a“地热”蕃茄脱水厂已自2001年以来，希腊北部的在新erasmio的，出产高品德的“晒制”西红柿。该单元操纵低本钱地热的水加热到56-58℃，在一个特地设想的地道式枯燥机，其被导入大气中。这项任务的规模是：将上述蕃茄枯燥进程中，操纵低焓地热动力。建模进程分为两个阶段：第一阶段集合在一个单一的番茄片的外型，而存眷的是第二阶段的外型，氛围枯燥的番茄在地道分批挪动的托盘。氛围流速，氛围温度，及蕃茄托盘装载在枯燥进程的影响停止了查询拜访。流量的设置装备摆设，也便是逆流或逆流操纵，对枯燥特征的影响停止了切磋。该模子可用于持续的枯燥进程中，现有的在neo erasmio的设想和优化的，并且能够很轻易地扩大和点窜，以处置与别的农业产物和地道设想。
modelling tomato dehydration in a tunnel dryer using geothermal energy
low-temperature geothermal waters can be used efficiently in drying various vegetables and fruits, replacing sun-drying or drying using conventional fuels. a “geothermal” tomato dehydration plant has been operating since 2001 in neo erasmio, northern greece, producing high-quality, “sun-dried” tomatoes. the unit uses low-cost geothermal water to heat atmospheric air to 56–58°c, which is introduced in a specially designed tunnel-type dryer. the scope of this work is to model the aforementioned tomato-drying process that uses low-enthalpy geothermal energy. the modelling procedure consists of two stages: the first stage focuses on the modelling of a single tomato piece, whereas the second stage is concerned with the modelling of air drying of tomatoes in a tunnel with trays moving in batches. the influence of air velocity, air temperature, and tomato tray loading on the drying process was investigated. the effect of flow configuration, i.e., co-current or counter-current operation, on the drying characteristics was also explored. the model can be used for the design and optimization of the continuous drying process existing in neo erasmio and can be easily extended and modified to deal with other agricultural products and tunnel designs.