在幹燥各（gè）種蔬（shū）菜和水果，取代太（tài）陽幹燥或烘幹使用（yòng）傳統燃料，可以有效地利用低溫地（dì）熱水。 A“地熱（rè）”蕃茄脫水廠已自2001年以來，希臘北部的在新Erasmio的，生（shēng）產高品質的“曬製”西紅柿（shì）。該單元使用低成（chéng）本地（dì）熱的水加熱（rè）到56-58℃，在一個專門設計的隧道式幹燥機，其被導入大氣中。這項工作（zuò）的範圍（wéi）是：將上述蕃茄（qié）幹燥過程中，使（shǐ）用低焓地熱能源。建模過程分為兩個階段：^階段集中在一個單一的番茄片的造型，而關注的是第二階段的（de）造（zào）型，空氣（qì）幹燥的番茄在隧道分批移動的托盤（pán）。空氣流速，空氣（qì）溫度，及（jí）蕃茄托盤裝載在幹燥過程的（de）影響（xiǎng）進行了調查。流量的配置，也就是順流或逆流（liú）操（cāo）作，對幹燥特性的影響進行了探討。該模型可用於連續的幹燥過程中，現（xiàn）有的在Neo Erasmio的設計和優（yōu）化的，並（bìng）且可以很容易地擴展和修改，以處理與其它農業產品和隧道設計。

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.